BOOK REVIEW: Great Physicists - The Life and Times of Leading Physicists from Galileo to Hawking

Science.gov (United States)

Cropper, William H.

2002-11-01

The author, a former American chemistry professor, has organized his book into nine parts with 29 chapters, covering, in a fairly historical sequence and systemtic conceptual progression, all fundamentals of today's physics: i.e., mechanics, thermodynamics, electromagnetism, statistical mechanics, relativity, quantum mechanics, nuclear physics, particle physics, astronomy-astrophysics-cosmology. Obviously, the 20th century (when about 90% of professional physicists of all time worked) assumes with five topics the dominant role in this enterprise. For each topic, a small number (ranging from one to eight) of leading personalities is selected and the biographies of these 29 physicists, including two women (Marie Curie and Lise Meitner), are presented in some detail together with their achievements in the particular topic. Important relevant contributions of other scholars to each topic are also discussed. In addition, Cropper provides each of the topics with a short 'historical synopsis' justifying his selection of key persons. One may argue that concentrating on leading physicists constitutes an old-fashioned approach to displaying the history and contents of fundamental topics in physics. However, the mixture of biographies and explanation of leading contributions given here will certainly serve for a larger public, not just professional physicists and scientists, as a guide through the exciting development of physical ideas and discoveries. In general, the presentation of the material is quite satisfactory (with only few slips, e.g., in the Meitner story, where the author follows too closely a new biography) and gives the essence of the great advances in physics since the 15th century. One notices perhaps the limitation of the author in cases where no biography in English is available - this would also explain the omission of some of the main contributors to atomic and particle physics, such as Arnold Sommerfeld and Hideki Yukawa, or that French or Russian readers

Dose reconstruction for workers of Mayak and for the Techa riverside residents

International Nuclear Information System (INIS)

Wieser, A.; Aragno, D.; Baiankine, S.

2000-01-01

The main objectives of the project were: (a) to contribute to the improvement of the dose assessment for individuals of the cohorts of workers of Mayak and Techa riverside residents which are currently burdened by large uncertainties, (b) to test the capabilities of several methods of dose reconstruction by their applying to the same members of the two cohorts for which independent dose assessments existed and (c) to further develop the methods of dose reconstruction according to the experience gained during the exercise. The applied methods were retrospective dosimetry based on electron paramagnetic resonance (EPR) of teeth, chromosome painting (FISH) in lymphocytes and luminescence techniques applied to building materials. The independent dose estimates were based on film dosimetry for the workers of Mayak and for the Techa riverside residents on measurements of the contamination in the environment, of the external β radiation of teeth and of the Strontium whole body contents. The work in the project was carried out in close collaboration with the project 'Dose Reconstruction' in the nuclear fission safety (NFS) programme (contract FI4PCT950011d). The measurements and evaluations were tasks for which the work was shared by both projects. Most of the method development and FISH analysis was more located in the NFS project and has been described in the final report of that project. (orig.)

Clinical training of medical physicists. IAEA experience in Asia

International Nuclear Information System (INIS)

McLean, D.

2013-01-01

Medical physicists make a major contribution to the safe and effective diagnosis and treatment of patients with cancer and other illnesses. The medical physicist's responsibilities include the major areas of dosimetry, treatment planning, quality assurance, image quality, optimization, equipment management, research, teaching, and radiation safety. With the increasing complexity of technological application to medicine the competence of trained physicists is critical to good patient care, with counter examples, sadly evident in the literature. The International Atomic Energy Agency (IAEA), in conjunction with international experts, including from Japan, has developed clinical training programmes that have been successfully implemented on a pilot basis in a number of countries in Asia. A new project is to begin in 2014 which will focus increasingly on the use of electronic teaching material and experiences, to assist medical physicists in clinical training increasingly in more remote locations in Asia. (author)

EPS Young Physicist Prize - CORRECTION

CERN Multimedia

2009-01-01

The original text for the article 'Prizes aplenty in Krakow' in Bulletin 30-31 assigned the award of the EPS HEPP Young Physicist Prize to Maurizio Pierini. In fact he shared the prize with Niki Saoulidou of Fermilab, who was rewarded for her contribution to neutrino physics, as the article now correctly indicates. We apologise for not having named Niki Saoulidou in the original article.

Nuclear Physicists in Finance

Science.gov (United States)

Mattoni, Carlo

2017-01-01

The financial services industry presents an interesting alternative career path for nuclear physicists. Careers in finance typically offer intellectual challenge, a fast pace, high caliber colleagues, merit-based compensation with substantial upside, and an opportunity to deploy skills learned as a physicist. Physicists are employed at a wide range of financial institutions on both the ``buy side'' (hedge fund managers, private equity managers, mutual fund managers, etc.) and the ``sell side'' (investment banks and brokerages). Historically, physicists in finance were primarily ``quants'' tasked with applying stochastic calculus to determine the price of financial derivatives. With the maturation of the field of derivative pricing, physicists in finance today find work in a variety of roles ranging from quantification and management of risk to investment analysis to development of sophisticated software used to price, trade, and risk manage securities. Only a small subset of today's finance careers for physicists require the use of advanced math and practically none provide an opportunity to tinker with an apparatus, yet most nevertheless draw on important skills honed during the training of a nuclear physicist. Intellectually rigorous critical thinking, sophisticated problem solving, an attention to minute detail and an ability to create and test hypotheses based on incomplete information are key to both disciplines.

Fermi: a physicist in the upheaval

International Nuclear Information System (INIS)

Maria, M. de

2002-01-01

This book summarizes the life, works and complex personality of the Italian physicist Enrico Fermi (1901-1954) whose myth is linked with the political upheaval of the 2. world war: the youth of an autodidact, the theorician and the quantum mechanics, his invention of a quantum statistics, the weak interaction theory, his works on artificial radioactivity, the end of the Fermi team and his exile in the USA, the secrete researches at the university of Columbia and the birth of the first atomic 'pile' (December 2, 1942), the building of Los Alamos center and the Alamogordo explosion test, the disagreements among the physicists of the Manhattan project and the position of Fermi, Fermi's contribution in the H-bomb construction, the creation of the physics school of Chicago, the Oppenheimer spying affair. (J.S.)

Validating the Riverside Acculturation Stress Inventory with Asian Americans

Science.gov (United States)

Miller, Matthew J.; Kim, Jungeun; Benet-Martinez, Veronica

2011-01-01

An emerging body of empirical research highlights the impact of acculturative stress in the lives of culturally diverse populations. Therefore, to facilitate future research in this area, we conducted 3 studies to examine the psychometric properties of the Riverside Acculturation Stress Inventory (RASI; Benet-Martinez & Haritatos, 2005) and its 5…

MO-A-218-01: CT Protocol Review - Practical Tips for Imaging Physicists.

Science.gov (United States)

Pizzutiello, R

2012-06-01

In the 1980's and 90's, when every mammography department had a wet film processor and a sundial to keep the schedule, medical physicists performing mammography surveys were primarily focused on measuring machine performance and image quality. As our professional experience matured, medical physicists began to learn that they were uniquely qualified to help to recommend technique factors that would balance dose and image quality. Technique charts using different kVp, target-filter combinations and AEC modes gradually became common and patients benefitted from our input. With the revolutionary change in CT Scanner technology and utilization, medical physicists have begun to contribute their expertise to developing and improving CT protocols. This presentation will present practical challenges and offer some directions for the practicing medical physicist who desires to participate in this critical and emerging aspect of imaging physics practice: CT Protocol Review. © 2012 American Association of Physicists in Medicine.

What is a medical physicist?

International Nuclear Information System (INIS)

Endo, Masahiro

2011-01-01

The modern radiotherapy requires a medical physicist who optimizes treatment plans, assures delivered dose equal to prescription, and performs QA (quality assurance) of radiotherapy equipments. However, medical physicist has not been established as a medical profession in Japan mainly because importance of radiotherapy was not sufficiently recognized until recently. Between 2000 and 2004, several accidents of radiotherapy including hundreds of patients were found and these accidents were mainly caused by lack of QA. The necessity and importance of medical physicist were recognized by these accidents as well as by the advent of high-precision radiotherapy such as IMRT (intensity modulation radiation therapy). JRS (Japan Radiological Society) that certified medical physicists with the help of JSMP (Japan Society of Medical Physics), decided to extend eligibility in order to increase certified medical physicists rapidly in 2003. After the decision certified medical physicists were rapidly increased in number. The government supports this tendency to enact that certified medical physicists is necessary to reimbursement for high-precision therapy. It also started to supply grants for medical physics training in physical and health science graduate schools. In this program several universities have started medical physics course in their graduate schools. If these movements continue, medical physicist will be established as a medical profession in the near future. (author)

A Gendered Approach to Science Ethics for US and UK Physicists.

Science.gov (United States)

Ecklund, Elaine Howard; Di, Di

2017-02-01

Some research indicates that women professionals-when compared to men-may be more ethical in the workplace. Existing literature that discusses gender and ethics is confined to the for-profit business sector and primarily to a US context. In particular, there is little attention paid to gender and ethics in science professions in a global context. This represents a significant gap, as science is a rapidly growing and global professional sector, as well as one with ethically ambiguous areas. Adopting an international comparative perspective, this paper relies on 121 semi-structured interviews with US and UK academic physicists to examine how physicists perceive the impact of gender on science ethics. Findings indicate that some US and UK physicists believe that female scientists handle ethical issues within science in a feminine way whereas their male colleagues approach ethics in a masculine way. Some of these physicists further claim that these different approaches to science ethics lead to male and female scientists' different levels of competitiveness in academic physics. In both the US and the UK, there are "gender-blind" physicists, who do not think gender is related to professional ethics. Relying on physicists' nuanced descriptions this paper contributes to the current understanding of gender and science and engineering ethics.

Physics, Physicists and Revolutionary Capabilities for the Intelligence Community

Science.gov (United States)

Porter, Lisa

2009-05-01

Over the past several decades, physicists have made seminal contributions to technological capabilities that have enabled the U.S. intelligence community to provide unexpected and unparalleled information to our nation's decision makers and help dispel the cloud of uncertainty they face in dealing with crises and challenges around the world. As we look to the future, we recognize that the ever-quickening pace of changes in the world and the threats we must confront demand continued innovation and improvement in the capabilities needed to provide the information on which our leaders depend. This talk will focus on some of the major technological challenges that the intelligence community faces in the coming years, and the many ways that physicists can help to overcome those challenges. The potential impact of physicists on the future capabilities of the US intelligence community is huge. In addition to the more obvious and direct impact through research in areas ranging from novel sensors to quantum information science, the unique approach physicists bring to a problem can also have an indirect but important effect by influencing how challenges in areas ranging from cybersecurity to advanced analytics are approached and solved. Several examples will be given.

TU-E-211-01: Establishing Multidisciplinary Collaboration as a Medical Physicist.

Science.gov (United States)

Xing, L; Fraass, B; Ford, E; Chang, S

2012-06-01

Many medical physicists are scientists at heart and their career fulfillment includes a balance of clinical service and research development. Multidisciplinary collaboration is a great way for the medical physicists to advance science and technology of our fields and the fields of our collaborators. Cross-pollination among scientists of different fields has been the key for some of the most significant breakthroughs in science and medicine and produced some of the most rewarding experiences for the individuals involved. However, medical physicists face unique challenges in establishing multidisciplinary collaboration because our time and resources for research are often quite limited compared to basic scientists. Yet we medical physicists are uniquely positioned and have a tremendous opportunity to create/contribute to multidisciplinary research: our fields are already multidisciplinary in nature and hospital environment is problem rich. How do we establish and carry out research collaboration with scientists of other fields? How to balance research with your higher priority clinical service? How do you find the right multidisciplinary collaboration in your own environment? We will discuss the challenges, provide real exemplary solutions to the above questions, and offer advise to medical physicists who are interested in starting or improving their multidisciplinary collaboration. There are different kinds of multidisciplinary collaborations a medical physicist can create and participate at different involvement levels. Multidisciplinary collaboration is not for every medical physicist but for those who seek and devote time to it, the experience can be truly rewarding and the impact can be enormous. 1. Learn the types of multidisciplinary collaboration medical physicists can created/participated 2. Learn the approaches and strategies to develop collaborations with scientists and professional of other fields3. Understand the challenges and different approaches to

Occurrence, distribution, and attenuation of pharmaceuticals and personal care products in the riverside groundwater of the Beiyun River of Beijing, China.

Science.gov (United States)

Yang, Lei; He, Jiang-Tao; Su, Si-Hui; Cui, Ya-Feng; Huang, De-Liang; Wang, Guang-Cai

2017-06-01

This study investigated the occurrence, seasonal-spatial distribution characteristics, and attenuation process of 15 pharmaceuticals and personal care products (PPCPs) in riverside sections of Beiyun River of Beijing. The overall PPCP levels both in surface water and riverside groundwater were moderate on the global scale, and showed higher concentrations in the dry season mainly caused by water temperature variation. Caffeine (CF), carbamazepine (CBZ), metoprolol (MTP), N,N-diethyl-meta-toluamide (DEET), diclofenac (DF), bezafibrate (BF), and gemfibrozil (GF) were seven representative PPCPs, because the rest eight studied compounds occurred in low concentrations and less than 15% of the total concentration of PPCPs. Caffeine and bezafibrate, respectively, was the most abundant compound in surface water and riverside groundwater, with median concentrations of 3020.0 and 125.0 ng L -1 . Total concentrations of PPCPs in surface water were much higher than those in the riverside groundwater spatially. Attenuation of PPCPs during riverbank filtration was largely depending on the sources, site hydrogeological conditions, and physical-chemical properties of PPCPs, also was influenced by dissolved organic matter and environmental physicochemical parameters. CF, MTP, DEET, and CBZ were potential groundwater attenuation contaminants; DF, BF, and GF were groundwater-enriched contaminants based on their removal rates. Predominant removal mechanism of PPCPs like CF was biodegradation. Attenuation simulation showed that the one-way supply between Beiyun River and riverside groundwater, and further confirmed Beiyun River, was the main source of pharmaceutical compounds in the riverside groundwater.

Physicists

CERN Document Server

Snow, CP

2010-01-01

C P Snow's sketches of famous physicists and explanation of how atomic weapons were developed gives an overview of science often lacking. This study provides us with hope for the future as well as anecdotes from history.

MO-C-BRB-04: Observations of a Nuclear Radiologist on the Value of the Medical Physicist

International Nuclear Information System (INIS)

Greenspan, B.

2016-01-01

With the profound changes currently occurring in medicine, the role of the medical physicist cannot stagnate, but must evolve to meet the challenges and opportunities that are presented. Medical physicists must understand these changes and establish themselves not only as relevant but as leaders in this new environment. We must increase our presence in clinical settings such as tumor boards, patient rounds, and the development of new diagnosis, imaging, and treatment techniques. By establishing ourselves as competent scientists, we can and must participate in the development of technologies through research, teaching, and clinical implementation. As medical physicists we must define our roles and value to our physician colleagues, patients, referring physicians, and senior administrators. We cannot afford to be viewed solely as quality assurance technologists, but need to move forward in step with medical and practice advances, becoming recognized as having a leadership role in providing quality research, technological development, and quality patient care. In this session, four leaders in medical research and healthcare will discuss their observations on how medical physicists have contributed to advancements in healthcare and opportunities to continue leadership in providing quality medicine through the applications of physics to research, education, and clinical practice. Learning Objectives: Understand the changes in the healthcare environment and how medical physicists can contribute to improving patient care. Learn how medical physicists are currently leading research efforts to improve clinical imaging and diagnosis. Understand the role of medical physicists in developing new technology and leading its translation into clinical care.

MO-C-BRB-04: Observations of a Nuclear Radiologist on the Value of the Medical Physicist

Energy Technology Data Exchange (ETDEWEB)

Greenspan, B. [Georgia Regents University (Georgia)

2016-06-15

With the profound changes currently occurring in medicine, the role of the medical physicist cannot stagnate, but must evolve to meet the challenges and opportunities that are presented. Medical physicists must understand these changes and establish themselves not only as relevant but as leaders in this new environment. We must increase our presence in clinical settings such as tumor boards, patient rounds, and the development of new diagnosis, imaging, and treatment techniques. By establishing ourselves as competent scientists, we can and must participate in the development of technologies through research, teaching, and clinical implementation. As medical physicists we must define our roles and value to our physician colleagues, patients, referring physicians, and senior administrators. We cannot afford to be viewed solely as quality assurance technologists, but need to move forward in step with medical and practice advances, becoming recognized as having a leadership role in providing quality research, technological development, and quality patient care. In this session, four leaders in medical research and healthcare will discuss their observations on how medical physicists have contributed to advancements in healthcare and opportunities to continue leadership in providing quality medicine through the applications of physics to research, education, and clinical practice. Learning Objectives: Understand the changes in the healthcare environment and how medical physicists can contribute to improving patient care. Learn how medical physicists are currently leading research efforts to improve clinical imaging and diagnosis. Understand the role of medical physicists in developing new technology and leading its translation into clinical care.

You Don't Look Like a Physicist

Science.gov (United States)

Santos, Antonio Carlos Fontes

2017-12-01

"You don't look like a physicist!" "Sorry, this bus only goes to the university, Sir." "Where are you going, sir?" "So, you are a university professor? But a substitute one, aren't you?" "OK, you're a professor, but do you do research?" As a person of color teaching physics in Brazil, those are some comments that I usually hear. They are consequences of stereotypes, prejudices, and discrimination, which are related but different ideas. Stereotypes indicate expectations and beliefs about an individual or a group, prejudice denotes feelings, and discrimination expresses behaviors. People are likely to be astonished whenever a Black person says that he or she is a physicist. This paper aims to raise awareness of the underrepresentation of Black physics professors and researchers in Brazil and how the lack of quality high school physics education impacts Black and poor students in Brazil. Finally, some considerations on how physics education can assist minority students in overcoming social barriers that contribute to their underrepresentation are presented.

CERN physicist receives Einstein Medal

CERN Multimedia

2006-01-01

On 29 June the CERN theorist Gabriele Veneziano was awarded the prestigious Albert Einstein Medal for significant contributions to the understanding of string theory. This award is given by the Albert Einstein Society in Bern to individuals whose scientific contributions relate to the work of Einstein. Former recipients include exceptional physicists such as Murray Gell-Mann last year, but also Stephen Hawking and Victor Weisskopf. Gabriele Veneziano, a member of the integrated CERN Theory Team since 1977, led the Theory Division from 1994 to 1997 and has already received many prestigious prizes for his outstanding work, including the Enrico Fermi Prize (see CERN Courier, November 2005), the Dannie Heineman Prize for mathematical physics of the American Physical Society in 2004 (see Bulletin No. 47/2003), and the I. Ya. Pomeranchuk Prize of the Institute of Theoretical and Experimental Physics (Moscow) in 1999.

Meeting "real" physicists in the flesh

CERN Multimedia

CERN Bulletin

2010-01-01

CERN physicists don't wear white coats (at least not very often); they don't all wear glasses and they don't concoct dangerous potions. They are often even women. These are some of the discoveries made by children from local schools taking part in the "Draw me a physicist" project. Franck Martin, an ATLAS physicist, answers questions from children from the Satigny-Village school.   20 school-classes from the Swiss communes of Meyrin, Satigny and Vernier and from the Pays de Gex in France have been taking part in this project, which involved the children making an initial drawing and writing a "dictionary-style" definition of a physicist in their classrooms, and then visiting CERN during the week of March 15th. The Swiss children were also treated to a show put on by the Physicscope group. During their visit to CERN they were able to see the laboratories and experiments for real and get an idea of what a physicist's job involves by interviewing a real male and...

LHC Olympics flex physicists' brains

CERN Multimedia

2006-01-01

Physicists from around the world met at CERN to strengthen their data-deciphering skills at the second LHC Olympics workshop. Physicists gather for the second LHC Olympics workshop. Coinciding with the kick-off of the winter Olympics in Turin, more than 70 physicists gathered at CERN from across the globe for the second LHC Olympics workshop on 9-10 February. Their challenge, however, involved brains rather than brawn. As the switch-on date for the LHC draws near, scientists excited by the project want to test and improve their ability to decipher the unprecedented amount of data that the world's biggest and most powerful particle accelerator is expected to generate. The LHC Olympics is a coordinated effort to do just that, minus the gold, silver and bronze of the athletics competition. 'In some ways, the LHC is not a precision instrument. It gives you the information that something is there but it's hard to untangle and interpret what it is,' said University of Michigan physicist Gordy Kane, who organiz...

Physicists' boycott

CERN Document Server

Charap, John M

1980-01-01

In CERN, scientists had taken action to boycott cooperation with their Soviet counterparts. This is in protest at the detention of the distinguished Russian particle accelerator physicist, Dr Yuri Orlov; 8,000 scientists from more than 40 countires have signed similar pledges

Britain honours its particle physicists

CERN Multimedia

2004-01-01

Theoretical and experimental particle physicists figure among the winners for 2004 of Britain's most prestigious prizes for physics, awarded by the Institute of Physics (IOP). The IOP's own Paul Dirac medal and prize, goes to this year to CERN's John Ellis for "his highly influential work on particle-physics phenomenology; in particular on the properties of gluons, the Higgs boson and the top quark". One of the institute's premier wards, it is made for outstanding contributions to theoretical (including mathematical and computational) physics. The Duddell medal and prize, in memory of William du Bois Duddell, the inventor of the electromagnetic oscillograph, is awarded for outstanding contributions to the advancement of knowledge through the application of physics, including the invention or design of scientific instruments or the discovery of materials used in their construction. It is shared this year by Geoff Hall, of Imperial College London, Alessandro Marchioro from CERN and Peter Sharp of the Rutherfor...

Enteroparasites in Riverside Settlements in the Pantanal Wetlands Ecosystem

Directory of Open Access Journals (Sweden)

Patrícia Vieira da Silva

2018-01-01

Full Text Available Background. Intestinal parasites are a major source of health problems in developing countries, where socioeconomic, cultural, and environmental conditions contribute in maintaining the biological cycles of various parasites and facilitating their spread. The objective of this study, conducted in Corumbá, Mato Grosso do Sul state, Brazil, was to investigate the occurrence of intestinal parasites in riverside communities in the South Pantanal wetlands and conduct educational interventions focused on health and environmental preservation. Method. In total, 196 stool samples were tested for parasites using the merthiolate-iodine-formaldehyde concentration (MIFC technique and spontaneous sedimentation and educational activities were carried out. Results. Enteroparasite prevalence was 72% (65.6–78.2%; 95% CI. Of the 141 positive cases, monoparasitism was found in 34.7%, biparasitism in 23%, and polyparasitism in 14.3%. Entamoeba coli was the most frequent protozoan (70.2%. Among helminths, hookworms were the most prevalent. Enteroparasitosis prevalence did not differ for sex or place of abode but proved higher in individuals older than 10 years. Conclusion. The high positivity rate for enteroparasites found for the communities stems from lack of sanitation and poor personal and environmental hygiene habits, indicating that effective health policies and educational interventions are needed to reduce the current risk levels.

News from the Library: About a dozen prestigious CERN physicists contribute to a special issue of EPJ H

CERN Multimedia

CERN Library

2012-01-01

European Physical Journal H is a journal published by Springer that focuses on the historical development of ideas in contemporary physics. Since 2009 it has partially replaced the journal "Annales de Physique" published by EDP sciences.   The journal recently published a special issue about CERN accelerators entitled "CERN's accelerators, experiments and international integration 1959-2009", with the former CERN Director-General, Herwig Schopper, as guest editor. The origin of this issue is a symposium that took place at CERN on 3-4 December 2009: "50 years of Nobel Memories in High-Energy Physics", for the 50th anniversary of the CERN Proton Synchrotron. Some of the contributions to this symposium became articles that are a real treasure for physicists and historians. Many of these are actually personal recollections from the main actors of the CERN accelerators. In addition, regular papers have been invited to make this ...

Correction factors in the EPR dose reconstruction for residents of the Middle and Lower Techa riverside.

Science.gov (United States)

Romanyukha, A A; Seltzer, S M; Desrosiers, M; Ignatiev, E A; Ivanov, D V; Bayankin, S; Degteva, M O; Eichmiller, F C; Wieser, A; Jacob, P

2001-11-01

During 1949-1956, the first Soviet nuclear weapons plant, Mayak, released about 7.6 x 10(7) m(-3) of liquid radioactive waste with a total activity of 10(17) Bq into the Techa River (Southern Urals, Russia). 90Sr contributed 11.6% to the total waste radioactivity. As a result of these radioactive discharges, about 28,000 local residents were exposed to ionizing radiation, and some of them received relatively high doses. Internal exposure of the population residing at the Middle and Lower Techa riverside was mostly from 90Sr deposited in bone and tooth tissues. In order to reconstruct radiation doses to this population group, a study of 35 teeth extracted from local residents was carried out using electron paramagnetic resonance measurements. A total of 73 samples from these 35 teeth (tooth enamel, 33; crown dentin, 20; and root dentin, 20) were prepared and measured with electron paramagnetic resonance. The study revealed high doses (up to 15 Gy) absorbed in tooth enamel of the individuals born during 1945-1949, which was attributed to very high local 90Sr concentration in tooth enamel of this particular age group in the population. The analysis presented here takes into account (a) the time courses both of the release/intake of 90Sr and of the tooth formation, and (b) expected variations in measured absorbed doses due to differing geometric sizes of tooth structures. This methodology enables a more consistent picture to be developed of the 90Sr intake by the Middle and Lower Techa riverside population, based on electron paramagnetic resonance tooth dosimetry.

Chemical elements in soils of riverside areas of the Piracicaba river basin, São Paulo, Brazil

International Nuclear Information System (INIS)

França, Elvis J.; Lira, Marcelo B.G.; Paiva, José D.S.; Fernandes, Elisabete A. de N.; Fonseca, Felipe Y.; Rodrigues, Vanessa S.; Cavalca, Isabel P.O.; Camilli, Leandro

2017-01-01

The monitoring of the soil quality of the Piracicaba River Basin, located in the State of São Paulo, is of extreme environmental importance, as it ensures the functionality of the basin ecosystems and environmental protection. However, there are few studies focused on the concentration of chemical elements in soils of environmental protection zones of highly populated riverside regions. In view of the above, this work aims to determine the concentration of chemical elements in the soils located on the banks of the Piracicaba River by the Instrumental Neutronic Activation Analysis - INAA. Soil samples were collected in the 0-5 cm, 5-10 cm and 10-15 cm profiles. Subsequently, the samples were dried in an oven at 80 deg C and comminuted with the aid of mortar and pistil. 250 mg portions were transferred to polyethylene capsules and irradiated in 10 13 cm -2 .s -1 neutron flux for 4 hours at the IEA-R1 Nuclear Research Reactor of the Nuclear and Energy Research Institute -IPEN / SP, Brazil. The determination of the chemical elements was conducted by the k0-INAA method from the Quantu program. Comparing the results obtained with the soil values of an untouched area of Atlantic Forest - Carlos Botelho State Park, the maximum values obtained of As (29 mg / kg) and Zn (185 mg / kg) were about 5 times greater. However, concentrations of terrigenous elements such as Fe and Sc were also high in some cases, indicating that there is also a contribution of the source material (rocks) to the high concentrations observed in the riverside soils

Clinical Training of Medical Physicists Specializing in Radiation Oncology

International Nuclear Information System (INIS)

2009-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for radiation therapy. There is a general and growing awareness that radiation medicine is increasingly dependant on well trained medical physicists that are based in the clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognised by the members of the Regional Cooperative Agreement (RCA) for research, development and training related to nuclear sciences for Asia and the Pacific. Consequently a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in radiation therapy was started in 2005 with the appointment of a core drafting committee of regional and international experts. Since 2005 the IAEA has convened two additional consultant group meetings including additional experts to prepare the present publication. The publication drew heavily, particularly in the initial stages, from the experience and documents of the Clinical Training Programme for Radiation Oncology Medical Physicists as developed by the Australasian College of Physical Scientists and Engineers in Medicine. Their

Women Physicists Speak Again

Science.gov (United States)

Ivie, Rachel; Guo, Stacy

2005-10-01

More than 1350 women physicists from more than 70 countries responded to a survey designed to identify issues important to women in physics. Women physicists had many areas of concern, notably discrimination and career/family balance. However, they also had many successes in physics. The majority would choose physics again and felt that they had progressed in their careers at least as quickly as their colleagues. Many spoke eloquently about their love of physics, the support they had received from others, and about their own determination and hard work.

Pharmaceutical ethnobotany in the Riverside of Navarra (Iberian Peninsula).

Science.gov (United States)

Calvo, M I; Akerreta, S; Cavero, R Y

2011-04-26

This paper provides significant ethnobotanical information on pharmaceutical plant uses in the Riverside of Navarra. Thereby, it will extend and complement a recent previous study carried out in the Northern Navarra. This paper aim to collect, analyse and evaluate the ethnobotanical knowledge about medicinal plants in the Riverside of Navarra (Iberian Peninsula) with 2554.4km(2) and 144,674 inhabitants. We performed semi-structured interviews with 147 informants (mean age 76 years; the percentage of men and women was almost 50%) in 34 locations, identified the plants reported and analyzed the results, comparing them with those from other territories. The informants reported data on 90 medicinal plants belonging to 39 botanical families. This work is focused on human medicinal plant uses, which represent 99% of the pharmaceutical uses (541). The species with the highest number of cites are Santolina chamaecyparissus ssp. squarrosa, Thymus vulgaris, Rosmarinus officinalis and Urtica dioica. All different plant parts are used; aerial part is exploited more frequently than other plant parts. Most of the listed remedies use a single ingredient, typically soaked in water. The percentage of internal uses is three times higher than external uses. The main ailments treated are digestive troubles, dermatological problems, and respiratory affections. Informants reported 11 new or scarcely cited uses for 8 medicinal plants. For 50% of the species (4) we have not found bibliographical references in the scientific literature and 50% have only one or two references. Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.

Are physicists useful?

CERN Multimedia

Ridley, B

2001-01-01

Article arguing that physicists need to be more than experts in their fields. They should develop their business, team-work and communication skills if they want to prove their worth to industry (1 page).

Nuclear forces the making of the physicist Hans Bethe

CERN Document Server

Schweber, Silvan S

2012-01-01

On the fiftieth anniversary of Hiroshima, Nobel-winning physicist Hans Bethe called on his fellow scientists to stop working on weapons of mass destruction. What drove Bethe, the head of Theoretical Physics at Los Alamos during the Manhattan Project, to renounce the weaponry he had once worked so tirelessly to create? That is one of the questions answered by "Nuclear Forces", a riveting biography of Bethe's early life and development as both a scientist and a man of principle. As Silvan Schweber follows Bethe from his childhood in Germany, to laboratories in Italy and England, and on to Cornell University, he shows how these differing environments were reflected in the kind of physics Bethe produced. Many of the young quantum physicists in the 1930s, including Bethe, had Jewish roots, and Schweber considers how Liberal Judaism in Germany helps explain their remarkable contributions. A portrait emerges of a man whose strategy for staying on top of a deeply hierarchical field was to tackle only those problems h...

Developing Technology Products - A Physicist's Perspective

Science.gov (United States)

Burka, Michael

2014-03-01

There are many physicists working in the industrial sector. We rarely have the word physicist in our job title; we are far more commonly called engineers or scientists. But, we are physicists, and we succeed because our training in physics has given us the habits of mind and the technical skills that one needs to solve complex technical challenges. This talk will explore the transition from physics research to technology product development using examples from my own career, first as a postdoctoral fellow and research scientist on the LIGO project, and then developing products in the spectroscopy, telecommunications, and medical device industries. Approaches to identifying and pursuing opportunities in industry will be discussed.

Physicist pins hopes on particle collider

CERN Multimedia

2007-01-01

Physicist pins hopes on particle collider By Deseret Morning News Published: Monday, Dec. 31, 27 12:4 a.m. MST FONT Scott Thomas, a 187 State University graduate, is working at the frontiers of science. The theoretical physicist is crafting ways to extract fundamental secrets that seem certain to be uncovered by the Large Hadron Collider.

[Maria Goeppert-Mayer Award to Taiwan-born and raised American physicist Michele Ma Chung-pei

CERN Multimedia

2003-01-01

"The American Physical Society conferred the prestigious Maria Goeppert-Mayer Award to Taiwan-born and raised American physicist Michele Ma Chung-pei recently in recognition of her important contributions to theoretical astrophysics" (1 page).

Topology and geometry for physicists

CERN Document Server

Nash, Charles

1983-01-01

Differential geometry and topology are essential tools for many theoretical physicists, particularly in the study of condensed matter physics, gravity, and particle physics. Written by physicists for physics students, this text introduces geometrical and topological methods in theoretical physics and applied mathematics. It assumes no detailed background in topology or geometry, and it emphasizes physical motivations, enabling students to apply the techniques to their physics formulas and research. ""Thoroughly recommended"" by The Physics Bulletin, this volume's physics applications range fr

Perspective for Female Medical Physicists

International Nuclear Information System (INIS)

Naqvi, Syed Mansoor; Hasnain, Aziz Fatima

2009-01-01

Due to cultural and religious reasons, Pakistani women can be reluctant to seek medical attention for disorders affecting their genitals or breasts. As a result, in the case of cervical and breast cancers, oncological treatment is often not received until the diseases are in the late stages. Once a cancer is classified and the tumor marked, the role of the medical physicist begins. Medical physicists' responsibilities include treatment planning, supervising treatment through radiation, dosimetry, contouring, training, equipment selection, education, research, and supervising radiotherapy facilities. In brachytherapy, isotopes are placed at the tumor site in the form of wires or seeds. There are very few female medical physicists in Pakistan. This leads to further hesitation on the part of many women to seek treatment. To help female patients obtain needed medical care, female physics students should be encouraged to pursue the emerging field of medical physics. This would provide a new professional opportunity for female physics students and give comfort to female patients.

Breast anatomy, physiology and pathology for the physicist

International Nuclear Information System (INIS)

Watson, A.B.

1996-01-01

Increased awareness of the importance of early breast cancer detection has spurred improvements in mammographic imaging systems and has lead to an ever-increasing role for the medical physicist. This talk will review the anatomy, physiology and pathology of the breast and discuss from a clinician's viewpoint, the proper technical and processing factors required to produce a quality mammographic study. Correct breast positioning for the MLO and CC views, adequate compression, elimination fo motion artifacts, appropriate film density and other important factors that contribute to an optimal diagnostic mammogram will also be examined. (author)

75 FR 42377 - Foreign-Trade Zone 244-Riverside County, CA; Application for Reorganization Under Alternative...

Science.gov (United States)

2010-07-21

... application and case record and to report findings and recommendations to the Board. Public comment is invited...--Riverside County, CA; Application for Reorganization Under Alternative Site Framework An application has been submitted to the Foreign-Trade Zones (FTZ) Board (the Board) by the March Joint Powers Authority...

Epidemiological aspects of Toxoplasma gondii infection in riverside communities in the Southern Brazilian Amazon

Directory of Open Access Journals (Sweden)

Sérgio Neto Vitaliano

2015-06-01

Full Text Available INTRODUCTION: Toxoplasma gondii infection is widely prevalent in humans and other animals worldwide. Information on the prevalence of T. gondii infection is scarce in some regions of Brazil, including riverside communities along the Amazon River basin. M METHODS: The prevalence of T. gondii in 231 people, aged 1-85 years, who were living in four riverside communities along the Purus River, Lábrea, State of Amazonas, Brazil, was determined. Antibodies against T. gondii were assayed using a commercial enzyme-linked immunosorbent assay (ELISA kit. The hearts and brains of 50 chickens, which were raised free-range in the communities, were pooled according to the community of origin and bioassayed in mice. The isolates were genotyped using polymorphisms at 12 nuclear markers (SAG1, 5' and 3'-SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, Apico and CS3. RESULTS: The overall seroprevalence of T. gondii was 56.7% (131/231. IgG antibodies were presented by 117 (89.3% and IgM by 14 (10.7% of the 131 positive individuals. No association between age group and gender with prevalence was observed (chi-square test, p > 0.05; however, the comparison between localities showed that the seroprevalence of T. gondii was significantly lower among the individuals living in the Boca do Ituxi (p < 0.05 community. Five isolates of T. gondii were obtained in the mouse bioassay, and genotyping revealed two complete genotypes that had not been described previously and three mixed isolates. CONCLUSIONS: These results support previous findings that T. gondii population genetics are highly diverse in Brazil and that T. gondii infection is active in these riverside communities.

Physicists in the Wild

Science.gov (United States)

Miller, Michael L.

2017-09-01

Startups and large corporations are full of physicists, many hiding in plain sight. Why? I will discuss the strong parallels between basic research in nuclear/particle physics, founding teams at great startups, and leaders at some of the world's largest corporations. How big are these opportunities (mission and capital), and what can we do to help prepare more physicists for such roles? I will provide lessons learned from my winding career that began at the NSCL as a philosophy undergrad, proceeded through a PhD, postdoc and brief stint as faculty, and continued through the founding of an early cloud computing startup, a sale to IBM, and the founding of one of Silicon Valley's most active venture capital firms.

Anniversary Paper: The role of medical physicists in developing stereotactic radiosurgery

International Nuclear Information System (INIS)

Benedict, Stanley H.; Bova, Frank J.; Clark, Brenda; Goetsch, Steven J.; Hinson, William H.; Leavitt, Dennis D.; Schlesinger, David J.; Yenice, Kamil M.

2008-01-01

This article is a tribute to the pioneering medical physicists over the last 50 years who have participated in the research, development, and commercialization of stereotactic radiosurgery (SRS) and stereotactic radiotherapy utilizing a wide range of technology. The authors have described the evolution of SRS through the eyes of physicists from its beginnings with the Gamma Knife in 1951 to proton and charged particle therapy; modification of commercial linacs to accommodate high precision SRS setups; the multitude of accessories that have enabled fine tuning patients for relocalization, immobilization, and repositioning with submillimeter accuracy; and finally the emerging technology of SBRT. A major theme of the article is the expanding role of the medical physicist from that of advisor to the neurosurgeon to the current role as a primary driver of new technology that has already led to an adaptation of cranial SRS to other sites in the body, including, spine, liver, and lung. SRS continues to be at the forefront of the impetus to provide technological precision for radiation therapy and has demonstrated a host of downstream benefits in improving delivery strategies for conventional therapy as well. While this is not intended to be a comprehensive history, and the authors could not delineate every contribution by all of those working in the pursuit of SRS development, including physicians, engineers, radiobiologists, and the rest of the therapy and dosimetry staff in this important and dynamic radiation therapy modality, it is clear that physicists have had a substantial role in the development of SRS and theyincreasingly play a leading role in furthering SRS technology

Physicist or computer specialist?

Energy Technology Data Exchange (ETDEWEB)

Clifton, J S [University College Hospital, London (United Kingdom)

1966-06-15

Since to most clinicians physical and computer science are two of the great mysteries of the world, the physicist in a hospital is expected by clinicians to be fully conversant with, and competent to make profound pronouncements on, all methods of computing. specific computing problems, and the suitability of computing machinery ranging from desk calculators to Atlas. This is not surprising since the proportion of the syllabus devoted to physics and mathematics in an M. B. degree is indeed meagre, and the word 'computer' has been surrounded with an aura of mysticism which suggests that it is some fantastic piece of electronic gadgetry comprehensible only to a veritable genius. The clinician consequently turns to the only scientific colleague with whom he has direct contact - the medical physicist - and expects him to be an authority. The physicist is thus thrust, however unwillingly, into the forefront of the advance of computer assistance to scientific medicine. It is therefore essential for him to acquire sufficient knowledge of computing science to enable him to provide satisfactory answers for the clinicianst queries, to proffer more detailed advice as to programming convince clinicians that the computer is really a 'simpleton' which can only add and subtract and even that only under instruction.

Contributions to naive quantum mechanics. A textbook for mathematicians and physicists; Beitraege zur naiven Quantenmechanik. Ein Leitfaden fuer Mathematiker und Physiker

Energy Technology Data Exchange (ETDEWEB)

Kohlmann, Martin

2009-07-01

The present text examplifies by means of 60 citations from current textbooks for the study of physics the necessarity of a mathematically rigorous formulation of quantum mechanics. Well known statements of many physicists about quantum mechanics at their mathematical tool kit are commented in form of a dialogue und mathematical points of view. Supplemented are the representations by a selection of theorems of higher analysis relevant for quantum theory. The book applies to mathematicians and mathematically interested physicists or students with founded mathematical knowledge.

Fermilab Education: Physicists

Science.gov (United States)

Search Education and Outreach: Resources and Opportunties for Fermilab employees and Users A variety of resources and opportunities are available for physicists interested in education and outreach (For general Data (6–12) Physical Science/Physics Instructional Resources (K–12) US Particle Physics Education and

Mathematics for physicists

CERN Document Server

Martin, B R

2015-01-01

Mathematics for Physicists is a relatively short volume covering all the essential mathematics needed for a typical first degree in physics, from a starting point that is compatible with modern school mathematics syllabuses. Early chapters deliberately overlap with senior school mathematics, to a degree that will depend on the background of the individual reader, who may quickly skip over those topics with which he or she is already familiar. The rest of the book covers the mathematics that is usually compulsory for all students in their first two years of a typical university physics degree, plus a little more. There are worked examples throughout the text, and chapter-end problem sets. Mathematics for Physicists features: * Interfaces with modern school mathematics syllabuses * All topics usually taught in the first two years of a physics degree * Worked examples throughout * Problems in every chapter, with answers to selected questions at the end of the book and full solutions on a website This text will ...

Physicist makes muon chamber sing

CERN Multimedia

2007-01-01

This Monitored Drift Tube detector, consisting of argon-CO2-filled aluminium tubes with a wire down the centre of each, will track muons in ATLAS; Tiecke used a single tube from one of these detectors to create the pipes in his organ. Particle physicists can make good musicians; but did you know particle detectors can make good music? That's what NIKHEF physicist Henk Tiecke learned when he used pipes cut from the ATLAS Monitored Drift Tube detector (MDT) to build his own working Dutch-style barrel organ in the autumn of 2005. 'I like to work with my hands,' said Tiecke, who worked as a senior physicist at NIKHEF, Amsterdam, on ZEUS until his retirement last summer. Tiecke had already constructed his barrel organ when he visited some colleagues in the ATLAS muon chambers production area at Nikhef in 2005. He noticed that the aluminium tubes they were using to build the chambers were about three centimetres in diameter-just the right size for a pipe in a barrel organ. 'The sound is not as nice as from wooden...

Education and training of medical physicists in radiology

International Nuclear Information System (INIS)

Todorov, V.; Vassileva, J.

2006-01-01

Full text: Medical radiology is chronologically the first and widest field of work of medical physicists. Therefore the education and training of medical radiological physicists is of big importance for both diagnostics and therapy. The education of medical radiological physicists in Bulgaria is organized in two levels: university and postgraduate, which is a good achievement of Bulgarian educational system. University education is in the framework of the M. Sc. program in Medical physics with a prevalent training in medical radiological physics. Three universities in the country have been carrying out this education since more than ten years. Postgraduate education covers specialties Medical Radiological Physics and Radiation Hygiene. It is organized by the Medical University but the training is opened also to specialists outside the health care system. The interests in both levels of education and training in Medical Physics is increasing with about 40 trainees in last years. The university and postgraduate education has good quality in theory but still inadequate in practical aspects. The continuous training and qualification of medical physicists has also difficulties; the main reasons are insufficient technical and financial resources as well as the lack of interest of the staff of the training centers. The responsibilities for education and training of medical physicists in radiology should be shared between physicists and physicians in the country

Mário Schenberg: Physicist, politician and art critic

International Nuclear Information System (INIS)

Guzzo, M. M.; Reggiani, N.

2015-01-01

Mário Schenberg is considered one of the greatest theoretical physicists of Brazil. He worked in different fields of physics including thermodynamics, quantum mechanics, statistical mechanics, general relativity, astrophysics and mathematics. He was assistant of the Ukrainian naturalized Italian physicist Gleb Wataghin and worked with prestigious physicists like as the Brazilians José Leite Lopes and César Lattes, the Russian-born American George Gamow and the Indian astrophysicist Subrahmanyan Chandrasekhar. Besides, he was also an active politician and critic of art

Brookhaven Lab physicist William Willis wins the 2003 W.K.H. Panofsky prize

CERN Multimedia

2003-01-01

William Willis, a senior physicist Brookhaven National Laboratory, has won the American Physical Society's 2003 W.K.H. Panofsky Prize in Experimental Particle Physics. He received the prize, which consists of $5,000 and a certificate citing his contributions to physics, at the APS meeting in Philadelphia on April 6 (1 page).

Clinical Training of Medical Physicists Specializing in Radiation Oncology (French Ed.)

International Nuclear Information System (INIS)

2012-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for radiation therapy. There is a general and growing awareness that radiation medicine is increasingly dependant on well trained medical physicists that are based in the clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognised by the members of the Regional Cooperative Agreement (RCA) for research, development and training related to nuclear sciences for Asia and the Pacific. Consequently a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in radiation therapy was started in 2005 with the appointment of a core drafting committee of regional and international experts. Since 2005 the IAEA has convened two additional consultant group meetings including additional experts to prepare the present publication. The publication drew heavily, particularly in the initial stages, from the experience and documents of the Clinical Training Programme for Radiation Oncology Medical Physicists as developed by the Australasian College of Physical Scientists and Engineers in Medicine. Their

Clinical Training of Medical Physicists Specializing in Radiation Oncology (Spanish Ed.)

International Nuclear Information System (INIS)

2012-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for radiation therapy. There is a general and growing awareness that radiation medicine is increasingly dependant on well trained medical physicists that are based in the clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognised by the members of the Regional Cooperative Agreement (RCA) for research, development and training related to nuclear sciences for Asia and the Pacific. Consequently a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in radiation therapy was started in 2005 with the appointment of a core drafting committee of regional and international experts. Since 2005 the IAEA has convened two additional consultant group meetings including additional experts to prepare the present publication. The publication drew heavily, particularly in the initial stages, from the experience and documents of the Clinical Training Programme for Radiation Oncology Medical Physicists as developed by the Australasian College of Physical Scientists and Engineers in Medicine. Their

Brief, Embedded, Spontaneous Metacognitive Talk Indicates Thinking Like a Physicist

Science.gov (United States)

Sayre, Eleanor C.; Irving, Paul W.

2015-01-01

Instructors and researchers think "thinking like a physicist" is important for students' professional development. However, precise definitions and observational markers remain elusive. We reinterpret popular beliefs inventories in physics to indicate what physicists think thinking like a physicist entails. Through discourse analysis of…

No-nonsense physicist an overview of Gabriele Giuliani’s work and life

CERN Document Server

Vignale, Giovanni; Pellegrini, Vittorio; Jain, Jainendra

2016-01-01

This book presents a compact personal biography and a collection of works by Gabriele F. Giuliani - a distinguished condensed matter theorist who made important contributions to our understanding of collective effects in electronic materials. In 2012 he passed away after a long battle with cancer. In addition, the book features scientific contributions from some of Prof. Giuliani's former students and collaborators and a number of personal recollections by friends and colleagues which shed light on the complex, multifaceted personality of a physicist who was also a passionate soccer player and formula Ford pilot.

Tales of physicists and mathematicians

CERN Document Server

Gindikin, Semyon Grigorevich

1988-01-01

This revised and greatly expanded second edition of the classic Russian text Tales of Mathematicians and Physicists contains a wealth of new information about the lives and accomplishments of more than a dozen scientists throughout history. Included are individuals from the late nineteenth century: Klein, Poincaré, Ramanujan, and Penrose, as well as renowned figures from earlier eras, such as Leibniz, Euler, Lagrange, and Laplace. A unique mixture of mathematics, physics, and history, this volume provides biographical glimpses of scientists and their contributions in the context of the social and political background of their times. The author examines many original sources, from the scientists’ research papers to their personal documents and letters to friends and family; furthermore, detailed mathematical arguments and diagrams are supplied to help explain some of the most significant discoveries in calculus, celestial mechanics, number theory, and modern relativity. What emerges are intriguing, multifac...

Improving the workplace environment for female physicists

Science.gov (United States)

Butcher, Gillian

2013-03-01

The ideal workplace is one in which women and men can work to their potential and are respected and recognized for their contribution. But what are the conditions that would create this environment, and how can we achieve this? This paper highlights some of the best practices, discussed in a single-session workshop, to improve the workplace environment for female (and male) physicists. While there are many actions that can be taken at the personal, local, and even national level, it is necessary to understand when the issues have broader societal implications. Likewise, working toward the ideal environment should not lead us to ignore the necessity of training and assisting women to work effectively in the existing environment.

Occupational Therapy and the amazon riverside child victim of scalping by motor boat shaft

Directory of Open Access Journals (Sweden)

Paula Dayse Braga Santos

2015-03-01

Full Text Available Although scalping is a recurrentaccident innorthern Brazil, there are still few studies on the subject. The aim of the present work was to report the occupational therapy procedure on the minimization of the occupational performance impairment of two riverside children that were victims of scalping by unprotected motor boat shaft, through the evaluation of occupational performance and exposure of the intervention performed. This is a case study with two scalped riverside girls hospitalized between April and June, 2013. The application of evaluation protocols verified changes in the areas of occupational performance, where activities of daily living (ADL such as dependence for bathing and ambulationare inserted; changesin the performance context, verified in the anxiety to be discharged from hospital; and changesin the performance component, with decreased self-esteem because of the change on their self-image. Reassessment after intervention showed improvement in the performance of ADL and self-image perceptionof both patients. Thereby it is believed that the development of the research allowed the contact with a theme that is so typical in the Braziliannorth region, stressing the importance of Occupational Therapy assistance, providing greater independence in the performance of ADL that are meaningful to each child.

Physicists produce first antiatom

CERN Multimedia

Watson, A

1996-01-01

Researchers at the European Center for Particle Physics (CERN) created 11 atoms of antihydrogen using the Low-Energy Antiproton Ring. Physicists forecast that the creation of the first antiatoms will aid in the understanding of antimatter.

Herbert Fröhlich: A Physicist Ahead of His Time, by G.J. Hyland [Book Review

Energy Technology Data Exchange (ETDEWEB)

Devanathan, Ram [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

2016-02-01

This authoritative biography of Herbert Fröhlich (1905-1991), a well-known theoretical physicist, paints an intimate portrait of a pioneering scientist who made seminal contributions to condensed matter physics and left his mark on other domains such as biology over a 60-year career. From his vantage point as the last graduate student of this eminent physicist, Gerard Hyland has produced an account that weaves the personal experiences and travails of Fröhlich with detailed discussion of the theory of dielectrics. The political upheavals in Europe during the 20th century provide a dramatic backdrop for the narrative.

Fermi: a physicist in the upheaval; Fermi: un physicien dans la tourmente

Energy Technology Data Exchange (ETDEWEB)

Maria, M. de

2002-07-01

This book summarizes the life, works and complex personality of the Italian physicist Enrico Fermi (1901-1954) whose myth is linked with the political upheaval of the 2. world war: the youth of an autodidact, the theorician and the quantum mechanics, his invention of a quantum statistics, the weak interaction theory, his works on artificial radioactivity, the end of the Fermi team and his exile in the USA, the secrete researches at the university of Columbia and the birth of the first atomic 'pile' (December 2, 1942), the building of Los Alamos center and the Alamogordo explosion test, the disagreements among the physicists of the Manhattan project and the position of Fermi, Fermi's contribution in the H-bomb construction, the creation of the physics school of Chicago, the Oppenheimer spying affair. (J.S.)

77 FR 12543 - Endangered and Threatened Wildlife and Plants; Revised Critical Habitat for Riverside Fairy Shrimp

Science.gov (United States)

2012-03-01

... reasoning used to exclude areas from the 2005 critical habitat designation for Riverside fairy shrimp and...) of the Act defines critical habitat as ``the specific areas within the geographical area occupied by...) pertains to ``specific areas outside the geographical area occupied by the species at the time it is listed...

Liability from the view of the medical physicist

International Nuclear Information System (INIS)

Shalek, R.J.

1980-01-01

The negligent performance of professional duties is the most probable type of legal action against a medical physicist. A mistake resulting from ignorance or inadvertence is an example; an error in professional judgement is not negligence if an ordinary, prudent physicist in the same situation would have made the same decision. A physicist or any hospital employee has a duty to protect his employer from liability even to the extent of reporting to the hospital medical practices which could harm the patient. Suggestions for reducing legal risk include recommendations for professional knowledge, record keeping and outside verification of important elements of operating systems

77 FR 37762 - Domestic Dates Produced or Packed in Riverside County, CA; Order Amending Marketing Order 987

Science.gov (United States)

2012-06-25

... DEPARTMENT OF AGRICULTURE Agricultural Marketing Service 7 CFR Part 987 [Doc. No. AMS-FV-10-0025; FV10-987-1 FR] Domestic Dates Produced or Packed in Riverside County, CA; Order Amending Marketing Order 987 AGENCY: Agricultural Marketing Service, USDA. ACTION: Final rule. SUMMARY: This final rule...

Physicists' Forced Migrations under Hitler

Science.gov (United States)

Beyerchen, Alan

2011-03-01

When the Nazis came to power in early 1933 they initiated formal and informal measures that forced Jews and political opponents from public institutions such as universities. Some physicists retired and others went into industry, but most emigrated. International communication and contact made emigration a viable option despite the desperate economic times in the Great Depression. Another wave of emigrations followed the annexation of Austria in 1938. Individual cases as well as general patterns of migration and adaptation to new environments will be examined in this presentation. One important result of the forced migrations was that many of the physicists expelled under Hitler played important roles in strengthening physics elsewhere, often on the Allied side in World War II.

Universities prepare as physicists plan to pop protons

CERN Multimedia

2007-01-01

"The world's largest science experiment, a physics experiment designed to determine the nature of matter, will produce a mountain of data. And because the world's physicists cannot move to the mountain, an army of computer research scientists is preparing to move the mountain to the physicists." (3 pages)

Directory and survey of particle physicists

International Nuclear Information System (INIS)

1997-04-01

In order to develop a clearer understanding of the demographics of the U.S. particle physics workforce, the US Department of Energy, the National Science Foundation, and the Division of Particles and Fields of the American Physical Society commissioned a survey and census of particle physicists employed in the United States. This survey and census were conducted in 1995, with an update of the census in April 1997. The agencies and the scientific community were represented for the 1995 efforts by Dr. Robert Woods (DOE), Dr. William Chinowsky (NSF), and Prof. Uriel Nauenberg (DPF); for the current census, by Dr. Robert Diebold (DOE), Dr. Marvin Goldberg (NSF), and Dr. Patricia Rankin (NSF). The survey/census were carried out with the assistance of the Particle Data Group at Lawrence Berkeley National Laboratory. In order to obtain an accurate study of the current workforce and of future needs, we requested that all HEP physicists fill out and return the 1995 survey. There were 2494 respondents. For the 1997 census, a representative of each university and laboratory was asked to provide information on all persons at that institution who spend at least 50% of their research time on particle physics. In some cases this includes accelerator physicists. The total number of physicists in the 1997 census is 3492 from 155 institutions in the United States. The full survey questionnaires are shown. The primary one was addressed to individual particle physicists, while the secondary one was addressed to principal investigators and sought information about people leaving the field. There are many possible tables and plots from this survey, with a variety of correlations. Those chosen are representative of a cross-section of the demographic results. It should be emphasized that this survey was a snapshot in time, and does not have the same capabilities as would a series of surveys that are periodic in time. Care should be taken in interpreting the results of the tables and plots

Directory and survey of particle physicists

Energy Technology Data Exchange (ETDEWEB)

NONE

1997-04-01

In order to develop a clearer understanding of the demographics of the U.S. particle physics workforce, the US Department of Energy, the National Science Foundation, and the Division of Particles and Fields of the American Physical Society commissioned a survey and census of particle physicists employed in the United States. This survey and census were conducted in 1995, with an update of the census in April 1997. The agencies and the scientific community were represented for the 1995 efforts by Dr. Robert Woods (DOE), Dr. William Chinowsky (NSF), and Prof. Uriel Nauenberg (DPF); for the current census, by Dr. Robert Diebold (DOE), Dr. Marvin Goldberg (NSF), and Dr. Patricia Rankin (NSF). The survey/census were carried out with the assistance of the Particle Data Group at Lawrence Berkeley National Laboratory. In order to obtain an accurate study of the current workforce and of future needs, we requested that all HEP physicists fill out and return the 1995 survey. There were 2494 respondents. For the 1997 census, a representative of each university and laboratory was asked to provide information on all persons at that institution who spend at least 50% of their research time on particle physics. In some cases this includes accelerator physicists. The total number of physicists in the 1997 census is 3492 from 155 institutions in the United States. The full survey questionnaires are shown. The primary one was addressed to individual particle physicists, while the secondary one was addressed to principal investigators and sought information about people leaving the field. There are many possible tables and plots from this survey, with a variety of correlations. Those chosen are representative of a cross-section of the demographic results. It should be emphasized that this survey was a snapshot in time, and does not have the same capabilities as would a series of surveys that are periodic in time. Care should be taken in interpreting the results of the tables and plots.

Knowledge, attitudes and practices (KAP) regarding leptospirosis among residents of riverside settlements of Santa Fe, Argentina.

Science.gov (United States)

Ricardo, Tamara; Bergero, Laura C; Bulgarella, Esteban P; Previtali, M Andrea

2018-05-01

Leptospirosis is a global and re-emerging zoonotic disease caused by Leptospira spirochetes that are shed into the environment by infected animals. Humans can get infected via contact with animal hosts or contaminated environment. In Argentina, the highest annual incidences were reported in the province of Santa Fe, where epidemic outbreaks occurred during flooding events. This study examined the knowledge, attitudes and practices (KAP) regarding leptospirosis among residents of riverside slum settlements from Santa Fe after a major flood. A cross-sectional questionnaire was administered to 113 residents of 3 riverside settlements from Santa Fe. The influence of knowledge and attitudes regarding leptospirosis on the likelihood that an individual will use preventive practices were evaluated using linear mixed-effects models. The majority of respondents (83.2%) had previously heard about leptospirosis; however specific knowledge about leptospirosis was limited. The results of the modeling efforts, show that the likelihood of using preventive practices was associated with having greater knowledge score, but not with more positive attitudes. We also found that females were more likely to use safer practices than males. Even though the majority of respondents had heard about leptospirosis, a high percentage of them had limited knowledge regarding the severity of the disease and its prevalence in the region. Our results suggest that public health interventions in these riverside communities should focus on educating the public on the multiple dimensions of leptospirosis in order to attain greater adherence to preventive practices instead of intending to change the perceptions or attitudes towards the disease, which did not have a significant influence. The key challenge lies in identifying effective strategies to reach the high risk group for leptospirosis here that is male fishermen, who spend most of the time in precarious campsites on the river islands.

Regional-employment impact of rapidly escalating energy costs. [Riverside-San Bernardino SMSA

Energy Technology Data Exchange (ETDEWEB)

Kolk, D X

1983-04-01

This paper presents a methodology for incorporating price-induced technological substitution into a regional input-output forecasting model. The model was used to determine the employment impacts of rapidly escalating energy costs on the Riverside-San Bernardino (California) SMSA. The results indicate that the substitution effect between energy and other goods was dominated by the income effect. A reallocation of consumer expenditures from labor-intensive to energy-intensive goods occurred, resulting in a two- to threefold increase in the unemployment rate among low-skilled individuals. 18 references, 5 tables.

Julian Schwinger the physicist, the teacher, and the man

CERN Document Server

1996-01-01

In the post-quantum-mechanics era, few physicists, if any, have matched Julian Schwinger in contributions to and influence on the development of physics. A deep and provocative thinker, Schwinger left his indelible mark on all areas of theoretical physics; an eloquent lecturer and immensely successful mentor, he was gentle, intensely private, and known for being "modest about everything except his physics". This book is a collection of talks in memory of him by some of his contemporaries and his former students: A Klein, F Dyson, B DeWitt, W Kohn, D Saxon, P C Martin, K Johnson, S Deser, R Fin

Physics Climate as Experienced by LGBT+ Physicists

Science.gov (United States)

Long, Elena

2012-02-01

In 2009, Elena Long created the LGBT+ Physicists website (http://lgbtphysicists.x10hosting.com) as a warehouse for resources useful for sexual and gender minorities working in physics. This resource has grown to include networking resources, lists of LGBT-friendly universities and localities, recommendations for enacting positive change in physics communities, and out-reach to other STEM-oriented LGBT organizations. This has been possible in large part by the dynamic community of LGBT+ physicists and allies looking to make physics more welcoming towards our community. In 2011, Elena used hir position as Member at Large on the executive committee of the Forum of Graduate Student Affairs (FGSA) to conduct a climate survey that included, among other things, the first serious look at LGBT+ demographics in physics. The survey focused particularly on issues of language heard and harassment experienced by physicists and was broken down into categories based on race, physical and mental ability, gender, and sexuality. Furthermore, it examined the outcomes of experienced harassment and the reasons for when harassment was not reported. Due to the nature of the study, overlapping demographics, especially ``multiple minorities,'' were also explored. This talk will give a brief history of the LGBT+ Physicists resource as well as an overview of the FGSA study.

Clinically related anatomy for physicists

International Nuclear Information System (INIS)

Wright, A.E.; Boyer, A.L.

1987-01-01

With the advent of CT and MR imaging, delineation of malignancies and the shaping of radiation treatment fields have become much more precise. Treatment planning in more than one transverse plane is more widely practiced as the use of sophisticated computers grow. These developments emphasize the need for the physicist to have a basic knowledge of human anatomy. This course is designed to familiarize the clinical physicist with the gross anatomy and topographic landmarks used by the physician in planning three-dimensional radiation treatment volumes. The significance of the various anatomic structures and their related lymphatics in the spread of disease is discussed. Emphasis is placed on disease entities that pose particular problems due to overlying or nearby healthy structures at risk

75 FR 13303 - Notice of Realty Action: Direct Sale of Public Lands in Riverside County, CA

Science.gov (United States)

2010-03-19

....37 acres in Riverside County. The appraised fair market value is $2,102,000. The public land is... market value of $2,102,000. DATES: Comments regarding the proposed sale must be received by the BLM on or... market value: San Bernardino Meridian T. 3 S., R. 4 E., Sec. 34, those remaining public lands in the N...

75 FR 28650 - Notice of Realty Action: Proposed Direct Sale of Public Lands in Riverside County, CA

Science.gov (United States)

2010-05-21

... in Riverside County, California to Cocopah Nurseries, Inc. for the appraised fair market value of $77...), as amended (43 U.S.C. 1713), at not less than the appraised fair market value: San Bernardino... County. The appraised fair market value is $77,000. The public land is identified as suitable for...

Education and Training of Medical Physicists in Europe

Directory of Open Access Journals (Sweden)

P. A. Kaplanis

2008-01-01

Full Text Available Introduction: Medical Physicist, as a professional who works in a hospital environment, is a member of a wide clinical team which is responsible for the correct diagnosis and the therapeutic methods applied using radiation. The role of a Medical Physicist is multifold and consists of the estimation of the dose received by patients and personnel, the quality control of radiological equipment, the studies for shielding requirements and the training of several health professionals (doctors, medical physicists, radiologists, technicians, nurses. All the above are prerequisites in order to receive the professional license to act as Medical Physicist.Aim-Research Inquires: The aim of European Union (EU via European Federation of Medical Physics (EFOMP is to apply a common policy among the EU countries in the area of Education and Training in Medical Physics within the context of the current developments in the European Higher Education Area arising from “The Bologna Declaration”. A short-term perspective is the free movement of professionals within EU, via the assurance of knowledge and skills uniformity. A necessary preliminary stage is the collection, classification and further process of relevant information at the European level.Methods-Techniques: To achieve the above in an efficient way EFOMP prepared a questionnaire and sent it to the National Organisation for Medical Physics of each country member of EFOMP (NMO. 23 out of 34 country members responded. The main parts (3 in total of this questionnaire and some typical questions were:Part A: Medical Physics Education•Which degree is required? Is this a university degree? How many years of studies does it represent?•Is there a nationally approved education programme and, if yes, then by whom?•Where do the education and training take place (University, Hospital, or both of them? Are these centers accredited and who gives the accreditation?Part B: Qualified / Specialist Medical Physicist�

Physicists epoch and personalities

CERN Document Server

Feinberg, E L; Leonidov, A V

2011-01-01

The book is a collection of memoirs on famous Soviet physicists of the 20th century, such as Tamm, Vavilov, Sakharov, Landau and others. The narrative is situated within a remarkably well-described historical, cultural and social context. Of special interest are the chapters devoted to Soviet and German atomic projects.

Abstract algebra for physicists

International Nuclear Information System (INIS)

Zeman, J.

1975-06-01

Certain recent models of composite hadrons involve concepts and theorems from abstract algebra which are unfamiliar to most theoretical physicists. The algebraic apparatus needed for an understanding of these models is summarized here. Particular emphasis is given to algebraic structures which are not assumed to be associative. (2 figures) (auth)

Future trends in the supply and demand for radiation oncology physicists.

Science.gov (United States)

Mills, Michael D; Thornewill, Judah; Esterhay, Robert J

2010-04-12

Significant controversy surrounds the 2012 / 2014 decision announced by the Trustees of the American Board of Radiology (ABR) in October of 2007. According to the ABR, only medical physicists who are graduates of a Commission on Accreditation of Medical Physics Education Programs, Inc. (CAMPEP) accredited academic or residency program will be admitted for examination in the years 2012 and 2013. Only graduates of a CAMPEP accredited residency program will be admitted for examination beginning in the year 2014. An essential question facing the radiation oncology physics community is an estimation of supply and demand for medical physicists through the year 2020. To that end, a Demand & Supply dynamic model was created using STELLA software. Inputs into the model include: a) projected new cancer incidence and prevalence 1990-2020; b) AAPM member ages and retirement projections 1990-2020; c) number of ABR physics diplomates 1990-2009; d) number of patients per Qualified Medical Physicist from Abt Reports I (1995), II (2002) and III (2008); e) non-CAMPEP physicists trained 1990-2009 and projected through 2014; f) CAMPEP physicists trained 1993-2008 and projected through 2014; and g) working Qualified Medical Physicists in radiation oncology in the United States (1990-2007). The model indicates that the number of qualified medical physicists working in radiation oncology required to meet demand in 2020 will be 150-175 per year. Because there is some elasticity in the workforce, a portion of the work effort might be assumed by practicing medical physicists. However, the minimum number of new radiation oncology physicists (ROPs) required for the health of the profession is estimated to be 125 per year in 2020. The radiation oncology physics community should plan to build residency programs to support these numbers for the future of the profession.

Major contributions to science

Energy Technology Data Exchange (ETDEWEB)

Martin, Andre

1991-03-15

It may look difficult to describe the scientific contributions of Léon Van Hove, who started his career as a pure mathematician, and then a mathematical physicist, and ended it as a phenomenologist and an adseveral of Léon's students, in particular N. Hugenholtz. In this domain, his contributions were numerous and fundamental.

The current status of education and career paths of students after completion of medical physicist programs in Japan: a survey by the Japanese Board for Medical Physicist Qualification.

Science.gov (United States)

Kadoya, Noriyuki; Karasawa, Kumiko; Sumida, Iori; Arimura, Hidetaka; Yamada, Syogo

2015-07-01

To standardize educational programs and clinical training for medical physics students, the Japanese Board for Medical Physicist Qualification (JBMP) began to accredit master's, doctorate, and residency programs for medical physicists in 2012. At present, 16 universities accredited by the JBMP offer 22 courses. In this study, we aimed to survey the current status of educational programs and career paths of students after completion of the medical physicist program in Japan. A questionnaire was sent in August 2014 to 32 universities offering medical physicist programs. The questionnaire was created and organized by the educational course certification committee of the JBMP and comprised two sections: the first collected information about the university attended, and the second collected information about characteristics and career paths of students after completion of medical physicist programs from 2008 to 2014. Thirty universities (16 accredited and 14 non-accredited) completed the survey (response rate 94 %). A total of 209, 40, and 3 students graduated from the master's, doctorate, and residency programs, respectively. Undergraduates entered the medical physicist program constantly, indicating an interest in medical physics among undergraduates. A large percentage of the students held a bachelor's degree in radiological technology (master's program 94 %; doctorate program 70 %); graduates obtained a national radiological technologist license. Regarding career paths, although the number of the graduates who work as medical physicist remains low, 7 % with a master's degree and 50 % with a doctorate degree worked as medical physicists. Our results could be helpful for improving the medical physicist program in Japan.

Lithuanian female physicists: Reality and plans for the future

Science.gov (United States)

Šatkovskienė, Dalia; Giriunienė, Ramutė; Ruželė, Živilė; Rutkunienė, Živilė

2013-03-01

Changes in the issue of women in physics in Lithuanian in the three years since the 3rd IUPAP International Conference on Women in Physics are discussed on the basis of statistics as well as an exploratory study recently conducted among women physicists. The situation has changed slowly since 2008. However, the study shows that women physicists more clearly understand the inequities and the need for changes, including an active European Union mainstreaming policy targeted to ensure gender equality in the sciences, which gives hope for accelerating changes. Continued plans for improving women physicists' situation in Lithuania are discussed.

WE-H-201-00: Opportunities for Physicists to Support Low and Mid-Income Countries

International Nuclear Information System (INIS)

2016-01-01

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

WE-H-201-00: Opportunities for Physicists to Support Low and Mid-Income Countries

Energy Technology Data Exchange (ETDEWEB)

NONE

2016-06-15

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

Contribution of the Belgian hospital physicists association to quality assurance in radiotherapy

International Nuclear Information System (INIS)

Hoornaert, M.Th.; Vynckier, S.; Dam, J. van; Bouiller, A.

1997-01-01

In 1987, the Belgian Hospital Physicists Association (BHPA) has started a program in order to uniformize the dosimetry in the Belgian radiotherapy centres. Several initiatives were taken: a) Dosimetry, of photon beams: Endorsement of the Dutch dosimetry, code of practice (NCS) (1), calibration of ionisation chambers in a common laboratory (Laboratory for standard dosimetry, RUG), on site visits where, besides mechanical checks of simulators and radiation units, absorbed dose was measured at different locations in a water phantom. Since 1987, a total of 23 centres were visited involving 18 simulators, 17 cobalt units and 22 linear accelerators with 33 photon beams. The energy of those photon beams ranged from 4 to 25 MeV (2). b) Dosimetry of electron beams: Endorsement of the Dutch dosimetry code of practice (3), calibration of several parallel plate chambers following the recommendations of the IAEA (4) and the NCS, on site visits for local measurements in electron beams. This program started last year. three centres were visited with a total of 23 energies ranging from 4.5 to 21 MeV. c) Elaboration of procedures and common reporting form for daily quality control will be published. (author)

Small ripple shakes a roomful of physicists

CERN Multimedia

2011-01-01

After the exciting results announced by CERN physicists at the EPS conference, the CERN Quantum Diaries blog gave an insightful recap of the news. Here's what blogger, Pauline Gagnon, reported...   The CMS collaboration combined results for the Higgs boson search covering a possible Higgs in the region from 110 to 600 GeV. This Friday afternoon, the 750 physicists attending the European Physics Society meeting in Grenoble, France, were pleasantly surprised. The audience was waiting with some anticipation to see the first important set of results from the two large LHC experiments, ATLAS and CMS on the search for the Higgs boson. In fact, for the past two days, results had been shown from both experiments as well as from the Tevatron experiments in various individual channels. But today, the latest combined results from each experiment were shown in public for the first time. Of course, all physicists belonging either to the CMS or ATLAS experiment had had a chance t...

Young physicists' forum

International Nuclear Information System (INIS)

Adams, T.

2001-01-01

The Young Physicists' Forum was an opportunity for the younger members of the particle-physics community to gather at Snowmass 2001 and to study and debate major issues that face the field over the next twenty years. Discussions were organized around three major topics: outreach and education, the impact of globalization, and building a robust and balanced field. We report on the results of these discussions, as presented on July 17, 2001

A Study on the Development and Application of Spatial-TDR Sensor for the Management of Groundwater at Riverside

Directory of Open Access Journals (Sweden)

Mincheol Park

2018-04-01

Full Text Available For sustainable use of water and land, efficient management of river water and groundwater at riverside is required for development. For this purpose, both the groundwater as well as the unsaturated areas should be measured and managed. However, existing point-type sensors have physical limitations. In this study, we developed a spatial-TDR (Time-Domain reflectometer sensor and calibration algorithm for efficient management of riverside groundwater and conducted laboratory and field experiments on whether groundwater level and the unsaturated area can be measured. The rod-type probe shown in ASTM (American Society for Testing and Materials D 6780-05 was modified into a steel wire-type sensing line so that it could be penetrated into the boring hole. The developed sensing line with steel wire is superior in transport and construction to make observations on the groundwater level, but it requires a separate filtering and calibration procedure because it contains a relatively large amount of noise. The raw data of the electric waveform is filtered by applying the moving-average method and the discrete Fourier transform (DFT. The calibration equation for the voltage of electric pulse and degree of saturation of soil calculated in laboratory experiments can be used to calculate the groundwater level and the unsaturated area of the real embankment. The spatial-TDR sensor developed in this study can measure both the groundwater level and the unsaturated area by improving the physical limit of the existing point-TDR sensor of probe-type. Therefore, it can greatly help efficient management of groundwater at riverside. It is necessary to put them into practical use through continuous improvement and experimental verification.

Clinical Training of Medical Physicists Specializing in Nuclear Medicine

International Nuclear Information System (INIS)

2011-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasingly technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for nuclear medicine. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists who are based in a clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (RCA) for the Asia-Pacific region. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in this region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in nuclear medicine was started in 2009 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experience of clinical training in Australia, Croatia and Sweden and was moderated by physicists working in the Asian region. The present publication follows the approach of earlier IAEA publications in the Training Course Series, specifically Nos 37 and 47, Clinical Training of Medical Physicists Specializing in Radiation Oncology and Clinical Training of Medical Physicists

Major contributions to science

International Nuclear Information System (INIS)

Martin, Andre

1991-01-01

It may look difficult to describe the scientific contributions of Léon Van Hove, who started his career as a pure mathematician, and then a mathematical physicist, and ended it as a phenomenologist and an adseveral of Léon's students, in particular N. Hugenholtz. In this domain, his contributions were numerous and fundamental

MO-E-213-02: Medical Physicist Involvement in Implementing Patient Protection Standards

Energy Technology Data Exchange (ETDEWEB)

Seibert, J. [UC Davis Medical Center (United States)

2015-06-15

The focus of work of medical physicists in 1980’s was on quality control and quality assurance. Radiation safety was important but was dominated by occupational radiation protection. A series of over exposures of patients in radiotherapy, nuclear medicine and observation of skin injuries among patients undergoing interventional procedures in 1990’s started creating the need for focus on patient protection. It gave medical physicists new directions to develop expertise in patient dosimetry and dose management. Publications creating awareness on cancer risks from CT in early part of the current century and over exposures in CT in 2008 brought radiation risks in public domain and created challenging situations for medical physicists. Increasing multiple exposures of individual patient and patient doses of few tens of mSv or exceeding 100 mSv are increasing the role of medical physicists. Expansion of usage of fluoroscopy in the hands of clinical professionals with hardly any training in radiation protection shall require further role for medical physicists. The increasing publications in journals, recent changes in Safety Standards, California law, all increase responsibilities of medical physicists in patient protection. Newer technological developments in dose efficiency and protective devices increase percentage of time devoted by medical physicists on radiation protection activities. Without radiation protection, the roles, responsibilities and day-to-day involvement of medical physicists in diagnostic radiology becomes questionable. In coming years either medical radiation protection may emerge as a specialty or medical physicists will have to keep major part of day-to-day work on radiation protection. Learning Objectives: To understand how radiation protection has been increasing its role in day-to-day activities of medical physicist To be aware about international safety Standards, national and State regulations that require higher attention to radiation

MO-E-213-01: Increasing Role of Medical Physicist in Radiation Protection

International Nuclear Information System (INIS)

Rehani, M.

2015-01-01

The focus of work of medical physicists in 1980’s was on quality control and quality assurance. Radiation safety was important but was dominated by occupational radiation protection. A series of over exposures of patients in radiotherapy, nuclear medicine and observation of skin injuries among patients undergoing interventional procedures in 1990’s started creating the need for focus on patient protection. It gave medical physicists new directions to develop expertise in patient dosimetry and dose management. Publications creating awareness on cancer risks from CT in early part of the current century and over exposures in CT in 2008 brought radiation risks in public domain and created challenging situations for medical physicists. Increasing multiple exposures of individual patient and patient doses of few tens of mSv or exceeding 100 mSv are increasing the role of medical physicists. Expansion of usage of fluoroscopy in the hands of clinical professionals with hardly any training in radiation protection shall require further role for medical physicists. The increasing publications in journals, recent changes in Safety Standards, California law, all increase responsibilities of medical physicists in patient protection. Newer technological developments in dose efficiency and protective devices increase percentage of time devoted by medical physicists on radiation protection activities. Without radiation protection, the roles, responsibilities and day-to-day involvement of medical physicists in diagnostic radiology becomes questionable. In coming years either medical radiation protection may emerge as a specialty or medical physicists will have to keep major part of day-to-day work on radiation protection. Learning Objectives: To understand how radiation protection has been increasing its role in day-to-day activities of medical physicist To be aware about international safety Standards, national and State regulations that require higher attention to radiation

MO-E-213-02: Medical Physicist Involvement in Implementing Patient Protection Standards

International Nuclear Information System (INIS)

Seibert, J.

2015-01-01

The focus of work of medical physicists in 1980’s was on quality control and quality assurance. Radiation safety was important but was dominated by occupational radiation protection. A series of over exposures of patients in radiotherapy, nuclear medicine and observation of skin injuries among patients undergoing interventional procedures in 1990’s started creating the need for focus on patient protection. It gave medical physicists new directions to develop expertise in patient dosimetry and dose management. Publications creating awareness on cancer risks from CT in early part of the current century and over exposures in CT in 2008 brought radiation risks in public domain and created challenging situations for medical physicists. Increasing multiple exposures of individual patient and patient doses of few tens of mSv or exceeding 100 mSv are increasing the role of medical physicists. Expansion of usage of fluoroscopy in the hands of clinical professionals with hardly any training in radiation protection shall require further role for medical physicists. The increasing publications in journals, recent changes in Safety Standards, California law, all increase responsibilities of medical physicists in patient protection. Newer technological developments in dose efficiency and protective devices increase percentage of time devoted by medical physicists on radiation protection activities. Without radiation protection, the roles, responsibilities and day-to-day involvement of medical physicists in diagnostic radiology becomes questionable. In coming years either medical radiation protection may emerge as a specialty or medical physicists will have to keep major part of day-to-day work on radiation protection. Learning Objectives: To understand how radiation protection has been increasing its role in day-to-day activities of medical physicist To be aware about international safety Standards, national and State regulations that require higher attention to radiation

MO-E-213-01: Increasing Role of Medical Physicist in Radiation Protection

Energy Technology Data Exchange (ETDEWEB)

Rehani, M. [Massachusetts General Hospital (United States)

2015-06-15

The focus of work of medical physicists in 1980’s was on quality control and quality assurance. Radiation safety was important but was dominated by occupational radiation protection. A series of over exposures of patients in radiotherapy, nuclear medicine and observation of skin injuries among patients undergoing interventional procedures in 1990’s started creating the need for focus on patient protection. It gave medical physicists new directions to develop expertise in patient dosimetry and dose management. Publications creating awareness on cancer risks from CT in early part of the current century and over exposures in CT in 2008 brought radiation risks in public domain and created challenging situations for medical physicists. Increasing multiple exposures of individual patient and patient doses of few tens of mSv or exceeding 100 mSv are increasing the role of medical physicists. Expansion of usage of fluoroscopy in the hands of clinical professionals with hardly any training in radiation protection shall require further role for medical physicists. The increasing publications in journals, recent changes in Safety Standards, California law, all increase responsibilities of medical physicists in patient protection. Newer technological developments in dose efficiency and protective devices increase percentage of time devoted by medical physicists on radiation protection activities. Without radiation protection, the roles, responsibilities and day-to-day involvement of medical physicists in diagnostic radiology becomes questionable. In coming years either medical radiation protection may emerge as a specialty or medical physicists will have to keep major part of day-to-day work on radiation protection. Learning Objectives: To understand how radiation protection has been increasing its role in day-to-day activities of medical physicist To be aware about international safety Standards, national and State regulations that require higher attention to radiation

Are physicists' philosophies irrelevant idiosyncrasies?

NARCIS (Netherlands)

de Regt, H.W.|info:eu-repo/dai/nl/112827802

1996-01-01

This article argues that individual philosophical commitments of scientists can decisively influence scientific practice. To support this claim, two historical examples are presented, concerning controversies between physicists about central problems in their field. Confrontation of the theories of

The Status of African American Physicists within the DOE Laboratories

Science.gov (United States)

Jackson, Keith

2005-03-01

In May 2002 there was a backpage article published in American Physical Society Newsletter by the President of the National Society of Black Physicists (NSBP). This article showed that of the 3372 professional physicists employed at the DOE national labs, only 11 are African American, which on a percentage basis is 4 times less than the total availability of Ph.D. African American physicists in the labor force. NSBP want to provide an update of the interaction between National Society of Black Physicists (NSBP) and the department of Energy in particular the Office of Science on the issue of employment of African American Physicists in scientific and technical. You might ask the following question: Why should the current generation of African American Physicists be concerned about their underepresentation on the scientific staffs of the DOE National Laboratories? The answer to this question may vary from person to person, but I would like to propose the following: The National Laboratories are the largest providers of career opportunities in Physics in the United States. There is a general view in the community; African Americans are not getting a return on their national investment in the DOE National Labs. Failure to engage with HBCU’s through their user facilities causes a training or skills deficit when it comes to preparing students to participate at the forefront of physics research. By rebuffing interactions with HBCU¹s, as many the laboratories have done, the national laboratories are in effect refusing to transfer scientific knowledge to the stakeholders in the African American community. The update will contain some additional information about NSBP proposals to solve the problem of underepresentation of African American and Hispanic physicists within the National Laboratories and how the Office of Science has response these proposals.

Train medical physicist-urgent need for advanced radiotherapy

International Nuclear Information System (INIS)

Hareyama, Masato; Teshima, Teruki; Yamamoto, Tokihiro; Haga, Akihiro; Nakagawa, Keiichi; Uesaka, Mitsuru

2008-01-01

A Japanese advanced charged particle therapy for cancer that places fewer physical burdens on patients is leading the world and stereotactic radiotherapy and intensity-modulated radiotherapy (IMRT) have been implemented also as a high precision radiotherapy. For the further advancement and dissemination of the therapy, training and qualification of medical physicists has become more needed. Cancer professional train course plan has been performed at many universities in Japan partly to train medical physicists. This special issue consists of seven relevant articles from experts of academia. Medical physicists have been qualified by the Japan Radiological Society, but should have national qualification such as to carry out the R and D of therapy equipment. This has been supported by many academia such as the Japanese Society for Therapeutic Radiology and Oncology (JASTRO) but not by the Japan Association of Radiological Technologists (JART). (T. Tanaka)

The second physicist on the history of theoretical physics in germany

CERN Document Server

Jungnickel, Christa

2017-01-01

This book explores the rise of theoretical physics in 19th century Germany. The authors show how the junior second physicist in German universities over time became the theoretical physicist, of equal standing to the experimental physicist. Gustav Kirchhoff, Hermann von Helmholtz, and Max Planck are among the great German theoretical physicists whose work and career are examined in this book. Physics was then the only natural science in which theoretical work developed into a major teaching and research specialty in its own right. Readers will discover how German physicists arrived at a well-defined field of theoretical physics with well understood and generally accepted goals and needs. The authors explain the nature of the work of theoretical physics with many examples, taking care always to locate the research within the workplace. The book is a revised and shortened version of Intellectual Mastery of Nature: Theoretical Physics from Ohm to Einstein, a two-volume work by the same authors. This new edition ...

Technical Training Seminar: Physicists in the world of finance

CERN Multimedia

Davide Vitè

2006-01-01

Monday 27 February TECHNICAL TRAINING SEMINAR from 14:00 to 16:00, Council Chamber (bldg. 503) Physicists in the world of finance Oliver Cooke, Zhengyun Hu / LEHMAN BROTHERS (UK) Two PhD physicists will talk about their experiences of working in investment banking, describing what investment banks do and the jobs which attract physicists and engineers. They will introduce the derivatives markets, and explain the need for advanced modelling. In particular, they will present the many modelling techniques used, including Monte Carlo simulation, solving PDEs, stochastic calculus and data analysis. They will describe a typical day for a physicist in the world of finance, and present a case study in which they will show how they used an idea from physics to solve a finance problem. After a PhD and CERN fellowship on OPAL in the 1990s, Oliver Cooke moved to finance. He was initially a mathematical modeller of derivatives, and now is an exotic derivatives trader at Lehman Brothers in London. He will be j...

Accreditation of physicist in radiotherapy-past, present and future

International Nuclear Information System (INIS)

Howlett, S.

2010-01-01

Full text: Accreditation of medical physicists for clinical radiotherapy practice was commenced by the ACPSEM in 1988 by a group of experienced physicists interested in setting a benchmark of international standard by which to assess practising radiotherapy physicists. It is a voluntary, peer based examination process and leads to the award of Accreditation in Radiotherapy Equipment Commissioning and Quality Assurance (ARECQA). The responsible body within the ACPSEM is the Radiation Oncology Accreditation Panel (ROAP) under the umbrella of the Professional Standards Board(PSB). Over 130 physicists in Australia and New Zealand have been awarded ARECQA and it has been recognised by the radiotherapy professions and government bodies as a desirable and sometimes required, standard of qualification. With the implementation of the Training, Education and Accreditation Program (TEAP) by ACPSEM in 2003, a new Accreditation in Radiation Oncology Medical Physics (AROMP) was established in 2005. ARECQA will cease taking applications from experienced physicists on December 31st 2012 and only the AROMP pathway will be available. An external review of TEAP funded by the Commonwealth Government Department of Health and Ageing (DoHA), which is not yet publicly released, will have implications for AROMP in the future. This talk will review the development and progress of accreditation in radiation oncology medical physics in Australia and New Zealand, its place in the delivery of quality patient care, the relationship to ACPSEM registration, the current situation and future directions. (author)

Nuclear physicist, arms control advocate

CERN Multimedia

Chang, K

2002-01-01

Victor F. Weisskopf, a nuclear physicist who worked on the Manhattan Project to build the first atomic bomb in World War II and later became an ardent advocate of arms control, died Monday at his home in Newton, MA, USA. He was 93 (1 page).

Women Physicists Speak: The 2001 International Study of Women in Physics

Science.gov (United States)

Ivie, Rachel; Czujko, Roman; Stowe, Katie

2002-09-01

The Working Group on Women in Physics of the International Union of Pure and Applied Physics (IUPAP) subcontracted with the Statistical Research Center of the American Institute of Physics (AIP) to conduct an international study on women in physics. This study had two parts. First, we conducted a benchmarking study to identify reliable sources and collect data on the representation of women in physics in as many IUPAP member countries as possible. Second, we conducted an international survey of individual women physicists. The survey addressed issues related to both education and employment. On the education side, we asked about experiences and critical incidents from secondary school through the highest degree earned. On the employment side, we asked about how the respondents' careers had evolved and their self-assessment of how well their careers had progressed. In addition, the questionnaire also addressed issues that cut across education and employment, such as the impact of marriage and children, the factors that contributed the most toward the success they had achieved to date, and suggestions for what could be done to improve the situation of women physicists.

Students to delve into physics at UCR

CERN Multimedia

2008-01-01

To turn up the volume on student interest in the sciences, San Jacinto High School physics teacher Mark Bonnard went global. His efforts resulted in allowing some students to head to UC Riverside in March to learn from physicists and interact with high school students from Portugal through an international master class.

Anniversary paper: evolution of ultrasound physics and the role of medical physicists and the AAPM and its journal in that evolution.

Science.gov (United States)

Carson, Paul L; Fenster, Aaron

2009-02-01

Ultrasound has been the greatest imaging modality worldwide for many years by equipment purchase value and by number of machines and examinations. It is becoming increasingly the front end imaging modality; serving often as an extension of the physician's fingers. We believe that at the other extreme, high-end systems will continue to compete with all other imaging modalities in imaging departments to be the method of choice for various applications, particularly where safety and cost are paramount. Therapeutic ultrasound, in addition to the physiotherapy practiced for many decades, is just coming into its own as a major tool in the long progression to less invasive interventional treatment. The physics of medical ultrasound has evolved over many fronts throughout its history. For this reason, a topical review, rather than a primarily chronological one is presented. A brief review of medical ultrasound imaging and therapy is presented, with an emphasis on the contributions of medical physicists, the American Association of Physicists in Medicine (AAPM) and its publications, particularly its journal Medical Physics. The AAPM and Medical Physics have contributed substantially to training of physicists and engineers, medical practitioners, technologists, and the public.

Female physicist doctoral experiences

Science.gov (United States)

Dabney, Katherine P.; Tai, Robert H.

2013-06-01

The underrepresentation of women in physics doctorate programs and in tenured academic positions indicates a need to evaluate what may influence their career choice and persistence. This qualitative paper examines eleven females in physics doctoral programs and professional science positions in order to provide a more thorough understanding of why and how women make career choices based on aspects both inside and outside of school and their subsequent interaction. Results indicate that female physicists experience conflict in achieving balance within their graduate school experiences and personal lives and that this then influences their view of their future careers and possible career choices. Female physicists report both early and long-term support outside of school by family, and later departmental support, as being essential to their persistence within the field. A greater focus on informal and out-of-school science activities for females, especially those that involve family members, early in life may help influence their entrance into a physics career later in life. Departmental support, through advisers, mentors, peers, and women’s support groups, with a focus on work-life balance can help females to complete graduate school and persist into an academic career.

Female physicist doctoral experiences

Directory of Open Access Journals (Sweden)

Katherine P. Dabney

2013-04-01

Full Text Available The underrepresentation of women in physics doctorate programs and in tenured academic positions indicates a need to evaluate what may influence their career choice and persistence. This qualitative paper examines eleven females in physics doctoral programs and professional science positions in order to provide a more thorough understanding of why and how women make career choices based on aspects both inside and outside of school and their subsequent interaction. Results indicate that female physicists experience conflict in achieving balance within their graduate school experiences and personal lives and that this then influences their view of their future careers and possible career choices. Female physicists report both early and long-term support outside of school by family, and later departmental support, as being essential to their persistence within the field. A greater focus on informal and out-of-school science activities for females, especially those that involve family members, early in life may help influence their entrance into a physics career later in life. Departmental support, through advisers, mentors, peers, and women’s support groups, with a focus on work-life balance can help females to complete graduate school and persist into an academic career.

Tereny nadrzeczne jako miejsce spędzania czasu wolnego mieszkańców Bydgoszczy = Riverside areas as places of leisure inhabitants of Bydgoszcz

Directory of Open Access Journals (Sweden)

Iwona Józefowicz

2015-12-01

  Słowa kluczowe: Bydgoszcz, Bydgoski Węzeł Wodny, tereny nadrzeczne, czas wolny,   Abstrakt   Celem artykułu jest omówienie wyników badań związanych z postrzeganiem terenów nadrzecznych jako miejsc spędzania czasu wolnego w Bydgoszczy. Większość ankietowanych mieszkańców Bydgoszczy spędza swój czas wolny na terenach Bydgoskiego Węzła Wodnego. Wśród preferowanych form znajdują się spacery, wycieczki piesze i rowerowe oraz uczestnictwo w imprezach plenerowych. Ocena terenów nadrzecznych jest zróżnicowana, obok odcinków postrzeganych pozytywnie są także te z notami negatywnymi.       Key words: Bydgoszcz, Bydgoski Węzeł Wodny, riverside areas, leisure.   Abstract   The article presents the results of studies related to the perception of riverside areas as places of leisure in Bydgoszcz. The majority of surveyed inhabitants of Bydgoszcz spends his free time in the areas of Bydgoski Węzeł Wodny Among the preferred forms are walking, hiking and biking trips and participation in outdoor events. Rating riverside areas is different. some areas are seen positively as those with negative notes.

Mercury Exposure in a Riverside Amazon Population, Brazil: A Study of the Ototoxicity of Methylmercury

Directory of Open Access Journals (Sweden)

Hoshino, Ana

2015-02-01

Full Text Available Introduction Mercury poisoning causes hearing loss in humans and animals. Acute and long-term exposures produce irreversible peripheral and central auditory system damage, and mercury in its various forms of presentation in the environment is ototoxic. Objective We investigated the otoacoustic emissions responses in a riverside population exposed to environmental mercury by analyzing the inhibitory effect of the medial olivocochlear system (MOCS on transient otoacoustic emissions (TEOAE. Methods The purpose of the research was to evaluate the entire community independently of variables of sex and age. All of the participants were born and lived in a riverside community. After otolaryngologic evaluation, participants were received tympanometry, evaluation of contralateral acoustic reflexes, pure tone audiometry, and recording of TEOAEs with nonlinear click stimulation. Hair samples were collect to measure mercury levels. Results There was no significant correlation between the inhibitory effect of the MOCS, age, and the level of mercury in the hair. Conclusions The pathophysiological effects of chronic exposure may be subtle and nonspecific and can have a long period of latency; therefore, it will be important to monitor the effects of mercury exposure in the central auditory system of the Amazon population over time. Longitudinal studies should be performed to determine whether the inhibitory effect of the MOCS on otoacoustic emissions can be an evaluation method and diagnostic tool in populations exposed to mercury.

ALICE physicists receive 2014 Lise Meitner Prize

CERN Multimedia

Katarina Anthony

2014-01-01

On Wednesday, 3 September, four ALICE physicists were presented with the European Physical Society's 2014 Lise Meitner Prize for their outstanding contributions to nuclear physics (see here).   ALICE collaboration members Johanna Stachel (Heidelberg University, Germany), Peter Braun-Munzinger (GSI, Germany), Paolo Giubellino (INFN Turin, Italy, and CERN) and Jürgen Schukraft (CERN) were presented with their awards at a private ceremony held in the Globe of Science and Innovation. In addition to members of the ALICE collaboration, the ceremony was attended by members of the CERN Management including the Director-General, Rolf Heuer, as well as the EPS Nuclear Physics Board Chair, Douglas MacGregor, and the EPS Lise Meitner Prize Committee Chair, Victor Zamfir. For more information, please see "EPS honours CERN's heavy-ion researchers".  From left to right: Douglas MacGregor (EPS); Prize recipients Jürgen Schukraft,&a...

Feedback between Accelerator Physicists and magnet builders

International Nuclear Information System (INIS)

Peggs, S.

1995-01-01

Our task is not to record history but to change it. (K. Marx (paraphrased)) How should Accelerator Physicists set magnet error specifications? In a crude social model, they place tolerance limits on undesirable nonlinearities and errors (higher order harmonics, component alignments, etc.). The Magnet Division then goes away for a suitably lengthy period of time, and comes back with a working magnet prototype that is reproduced in industry. A better solution is to set no specifications. Accelerator Physicists begin by evaluating expected values of harmonics, generated by the Magnet Division, before and during prototype construction. Damaging harmonics are traded off against innocuous harmonics as the prototype design evolves, lagging one generation behind the evolution of expected harmonics. Finally, the real harmonics are quickly evaluated during early industrial production, allowing a final round of performance trade-offs, using contingency scenarios prepared earlier. This solution assumes a close relationship and rapid feedback between the Accelerator Physicists and the magnet builders. What follows is one perspective of the way that rapid feedback was used to 'change history' (improve linear and dynamic aperture) at RHIC, to great benefit

The ethics of physicists in questions

CERN Multimedia

2000-01-01

Four CERN physicists, Peggie Rimmer, Ugo Amaldi, Alain Blondel, and Jean-Marie Le Goff, answered questions from 150 college students last Monday during a debate on the theme of the ethics of physics. Organized by CERN and the Department of public instruction of the Canton of Geneva, the meeting followed a reading by the students of the play Die Physiker, by Friedrich Dürrenmatt, which raises the problem of political exploitation of discoveries made during the second world war. The Minister of Education of the Canton de Genève, Mrs Martine Brunschwig-Graf, took part in the debate. The questions posed by students were not lacking in pertinence : Should a physicist reveal a discovery that is dangerous in his opinion ? Who are responsible, those who make the discoveries or those who use them ?

Clinical Training of Medical Physicists Specializing in Diagnostic Radiology

International Nuclear Information System (INIS)

2010-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for diagnostic radiology. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists based in the clinical setting. However, an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement (RCA) for Research, Development and Training related to Nuclear Sciences for Asia and the Pacific. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia-Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specializing in diagnostic radiology started in 2007 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experiences of clinical training programmes in Australia and New Zealand, the UK and the USA, and was moderated by physicists working in the Asian region. This publication follows the approach of the IAEA publication Training Course Series No. 37, Clinical Training of Medical Physicists specializing in Radiation Oncology. This approach to clinical training has been successfully tested

Physicists observe subatomic quick-change artist

CERN Multimedia

Halber, Deborah

2006-01-01

Physicists have announced the observation of a subatomic particle known as the Bs (pronounced "B sub s") meson switching between matter and antimatter states at a mind-boggling 3 trillion times per second (1 page)

Physicist swaps protons for profit strategies

CERN Document Server

Starck, Peter

2006-01-01

"A german particle physicist has decided to try his hand as a hedge fund manager and is confident that his award-winning algorithm will mean he hits his return target within weeks of launch." (1/2 page)

Complementary Colours for a Physicist

Science.gov (United States)

Babic, Vitomir; Cepic, Mojca

2009-01-01

This paper reports on a simple experiment which enables splitting incident light into two different modes, each having a colour exactly complementary to the other. A brief historical development of colour theories and differences in a physicist's point of view with respect to an artist's one is discussed. An experimental system for producing…

A day with the women physicists of Pakistan

Science.gov (United States)

Hasnain, Aziz Fatima; Islam, Aquila; Ali, Asima; Qureshi, Riffat Mehmood; Qamar, Anisa

2015-12-01

The Working Group on Women in Physics successfully organized a national-level meeting of women physicists at the National Centre for Physics, Quaid-e-Azam University, to discuss the agenda for the 5th IUPAP International Conference on Women in Physics. This report describes the outcome of the meeting and the status of female physicists in Pakistan. It also includes a comparative study of the enrollment of women in undergraduate and graduate programs in physics, along with a brief description of factors that create hurdles for female students opting for higher education in this field.

The River Danube as an Attraction in Positioning Hotels along its Riverside Capitals

Directory of Open Access Journals (Sweden)

Ákos Kátay

2015-04-01

Full Text Available The hotel is part of the tourism suprastructure; it provides the conditions of the complex supply set of the people’s temporary home. The most important supply characteristic is the location, because this is the only one that is not changeable after a hotel starts its operation. Therefore, the site of the venue completely determines the hotel’s future successfulness. The aim of the research is to explore how much Danube bank located hotel industry lived with the opportunity of choosing the venue’s establishing location as a potential attraction. The paper also outlines how much these properties use this condition in their marketing and also in selling their products. The research examines those hotels that have no significant built-up area between their property and the Danube that would completely destroy the view of the river. According to the hypotheses of the research these riverside based venues mostly belong to international or regional hotel chains. The economical factor during the planning of the venue is much more important than that all rooms should have a riverside view. In the hotels’ marketing communication the utilization of the Danube appears as an attraction such as its additional value shows up in their price policy. The average room prices of these venues’ are higher than the same capital’s similar star-rated ones without having Danube view. In order to get relevant answers for the above hypotheses authors have a detailed literature review on the development plans and operating reports of the hotel and hospitality industry and examined the involved hotels’ website content analysis, as well.

A Physicist Looks at Biology

Indian Academy of Sciences (India)

Home; Journals; Resonance – Journal of Science Education; Volume 4; Issue 11. A Physicist Looks at Biology. Max Delbrück. Classics Volume 4 Issue 11 November 1999 pp 89-102. Fulltext. Click here to view fulltext PDF. Permanent link: https://www.ias.ac.in/article/fulltext/reso/004/11/0089-0102. Author Affiliations.

Guerrilla science survival strategies of a Cuban physicist

CERN Document Server

Altshuler, Ernesto

2017-01-01

Full of drama, dedication, and humor, this book narrates the author’s often frustrating experiences working as an experimental physicist in Cuba after the disintegration of the so-called socialist block. Lacking finance and infrastructure, faced with makeshift equipment, unpredictable supplies, and unreliable IT, Altshuler tells how he and his students overcame numerous challenges to make novel and interesting contributions to several fields of science. Along the way, he explains the science - from studies of ant colonies to superconductivity - either qualitatively or quantitatively, but always at a level fully understandable to an undergraduate student of natural sciences or engineering. An even wider audience, however, may skip the technical sections without missing the essence. With numerous anecdotes, photographs and the author’s own delightful cartoons, the book tells a remarkable, and often amusing story of how successful science can be performed against all odds.

Physicist challenges prevailing view of math

CERN Multimedia

Burton, H

2004-01-01

Article about Michael Berry, a renowned mathematical physicist from the University of Bristol in England. Rather than trying to discover profound mathematical relationships in the physical world, Prof. Berry looks to the real world for "applications" of mathematical relationships (1 page)

Mathematics for Physicists and Engineers.

Science.gov (United States)

Organisation for Economic Cooperation and Development, Paris (France).

The text is a report of the OEEC Seminar on "The Mathematical Knowledge Required by the Physicist and Engineer" held in Paris, 1961. There are twelve major papers presented: (1) An American Parallel (describes the work of the Panel on Physical Sciences and Engineering of the Committee on the Undergraduate Program in Mathematics of the Mathematical…

History and development of medical physics and medical physicist in Japan

International Nuclear Information System (INIS)

Toyofuku, F.

2014-01-01

The history of medical physics in Japan dates back to the mid-1950's when radioisotope sources such as cobalt-60 were initiated into hospitals. In 1961, a total of about 30 medical physics researchers created a sub-committee of medical physics under the Japan Radiological Society (JRS), which flourished throughout the decade, and the number of members exceeded to more than 200 in 1970. Although there were great advances in medical technologies, the number of members of the medical physics community did not grow for the next two decades from 1980 to 2000. Then, the JRS began to officially recognize medical physicists as a professional group in 1987. Qualifications of candidacy for the examination included having the education equivalent of a Bachelor of Science/Engineering and being a member of the JRS. For the first official examination, 70 medical physicists were approved by the JRS. As of 2013, there are currently 700 medical physicists, however, the number of practicing clinical medical physicists remains only about 150. The main reason for this limited number of medical physicists is that the certification is not recognized as a national license and therefore is challenging to find professional employment as qualified medical personnel at hospitals. (author)

INDEFINITE CONTRACT REVIEW 1999 Procedure for Research Physicists (Professional Category 1)

CERN Multimedia

1999-01-01

In view of the long-standing deliberate turnover policy of professional category 1 research physicists on fixed-term contracts, a special procedure is defined, distinct from the other professional categories. This procedure takes into account that research physicists stay at CERN for only up to 6 years and that periods of service as Fellow may be counted within these six years.The following procedure has been agreed:1.\tThe review covers research physicists holding fixed-term contracts and having completed at least 4 years of service on 30 June 1999. Prior years as Fellow may be taken into consideration in the specific context.\tAll candidates are informed individually.2.\tThe files of all candidates are considered by search committees. The members of the committees are nominated by the Director-General and comprise members of the senior CERN staff as well as at least one senior external physicist. The committees are free to take up references and to interview the candidates.3.\tIn ord...

Clinical Training of Medical Physicists Specializing in Nuclear Medicine (Spanish Edition)

International Nuclear Information System (INIS)

2013-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasingly technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for nuclear medicine. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists who are based in a clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (RCA) for the Asia-Pacific region. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in this region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in nuclear medicine was started in 2009 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experience of clinical training in Australia, Croatia and Sweden and was moderated by physicists working in the Asian region. The present publication follows the approach of earlier IAEA publications in the Training Course Series, specifically Nos 37 and 47, Clinical Training of Medical Physicists Specializing in Radiation Oncology and Clinical Training of Medical Physicists

Clinical Training of Medical Physicists Specializing in Nuclear Medicine (French Edition)

International Nuclear Information System (INIS)

2012-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasingly technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for nuclear medicine. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists who are based in a clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (RCA) for the Asia-Pacific region. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in this region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in nuclear medicine was started in 2009 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experience of clinical training in Australia, Croatia and Sweden and was moderated by physicists working in the Asian region. The present publication follows the approach of earlier IAEA publications in the Training Course Series, specifically Nos 37 and 47, Clinical Training of Medical Physicists Specializing in Radiation Oncology and Clinical Training of Medical Physicists

TU-G-213AB-01: Organization and Productivity Strategies for Practicing Medical Physicists.

Science.gov (United States)

Jordan, D

2012-06-01

Medical physicists face numerous challenges that create stress in the professional workplace. The modern work environment contains multiple communications channels, such as email, smart phones, text and instant messaging, voice mail, pagers, and more. These media make it difficult to organize incoming information, set priorities, and move important work forward in the face of rapid change and the requirement to fulfill multiple responsibilities. Medical physicists in particular are likely to feel acute stress due to off-peak work hour requirements, varied responsibilities including clinical duties, research, teaching, and regulatory matters, and the complexity of supervising other staff members. Many medical physicists also work in multiple physical locations, adding complexity to the task of organizing information and resources. Another common difficulty is that medical physicists' responsibilities typically include some duties that render them subject to frequent and urgent interruption, such as emergency response coverage for radiation safety. The real challenges in the current medical physics work environment differ from those encountered while taking courses and conducting research, as well as from earlier periods when medical physicists faced fewer varied responsibilities, slower-paced change, or both. Today's practicing physicist can benefit greatly from developing a formal framework and skill set to manage their personal workflow. This greatly increases the individual's effectiveness and reduces feelings of stress, while improving the effectiveness of teams or groups in which they participate. In this session, participants will learn about a number of techniques and strategies to manage their own personal workflow. Examples familiar to the medical physicist will be provided to illustrate methods to capture, organize, and act on important information, to delegate effectively, and to handle inevitable interruptions. 1. Describe the use of a personal workflow

What physicists should learn about finance (if they want to)

Science.gov (United States)

Schmidt, Anatoly

2006-03-01

There has been growing interest among physicists to Econophysics, i.e. analysis and modeling of financial and economic processes using the concepts of theoretical Physics. There has been also perception that the financial industry is a viable alternative for those physicists who are not able or are not willing to pursue career in their major field. However in our times, the Wall Street expects from applicants for quantitative positions not only the knowledge of the stochastic calculus and the methods of time series analysis but also of such concepts as option pricing, portfolio management, and risk measurement. Here I describe a synthetic course based on my book ``Quantitative Finance for Physicists'' (Elsevier, 2004) that outlines both worlds: Econophysics and Mathematical Finance. This course may be offered as elective for senior undergraduate or graduate Physics majors.

Physicists tackles questions of tiny dimensions

CERN Multimedia

Moran, Barbara

2003-01-01

Today's physicists have a dilemna: they are using two separate theories to describe the universe. General relativity, which describes gravity, works for large objects like planets. Quantum mechanics, which involves the other forces, works for tiny objects like atoms. Unfortunately, the two theories don't match up.

Physicists and Economic Growth: Preparing the Next Generation

Science.gov (United States)

Arion, Douglas

2012-02-01

For many years it has been recognized that many physicists are ``hidden'' -- deep in the industrial world or holding positions not named ``physicist.'' In parallel with this phenomenon is the recognition that many new and innovative product ideas are, in fact, generated by physicists. There are many more ideas that could be brought to market to the benefit of both society and the inventor, but physicists don't often see themselves as the innovators and inventors that they actually are. A number of education programs have arisen to try to address this issue and to engender a greater entrepreneurial spirit in the scientific community. The ScienceWorks program at Carthage College was one of the first to do so, and has for nearly twenty years prepared undergraduate science majors to understand and practice innovation and value creation. Other programs, such as professional masters degrees, also serve to bridge the technical and business universes. As it is no doubt easier to teach a scientist the world of business than it is to teach a businessperson the world of physics, providing educational experiences in innovation and commercialization to physics students can have tremendous economic impact, and will also better prepare them for whatever career direction they may ultimately pursue, even if it is the traditional tenure-track university position. This talk will discuss education programs that have been effective at preparing physics students for the professional work environment, and some of the positive outcomes that have resulted. Also discussed will be the variety of opportunities and resources that exist for faculty and students to develop the skills, knowledge and abilities to recognize and successfully commercialize innovations.

Radiation oncology a physicist's-eye view

CERN Document Server

Goitein, Michael

2007-01-01

Radiation Oncology: A Physicist's-Eye View was written for both physicists and medical oncologists with the aim of helping them approach the use of radiation in the treatment of cancer with understanding, confidence, and imagination. The book will let practitioners in one field understand the problems of, and find solutions for, practitioners in the other. It will help them to know "why" certain approaches are fruitful while, at the same time, encouraging them to ask the question "Why not?" in the face of assertions that some proposal of theirs is impractical, unreasonable, or impossible. Unlike a textbook, formal and complete developments of the topics are not among the goals. Instead, the reader will develop a foundation for understanding what the author has found to be matters of importance in radiation oncology during over thirty years of experience. Presentations cover, in largely non-technical language, the principal physical and biological aspects of radiation treatment and address practical clinical c...

What physicists should know about finance

Science.gov (United States)

Schmidt, Anatoly B.

2005-05-01

There has been growing interest in Econophysics, i.e. analysis and modeling of financial time series using the theoretical Physics concepts (scaling, fractals, chaos). Besides the scientific stimuli, this interest is backed by perception that the financial industry is a viable alternative for those physicists who are not able or are not willing to pursue an academic career. However, the times when any Ph.D. in Physics had a chance to find a job on the Wall Street are gone (if they ever existed). Indeed, not every physicist wields the stochastic calculus, non-normal statistical distributions, and the methods of time series analysis. Moreover, now that many universities offer courses in mathematical finance, the applicants for quantitative positions in finance are expected to know such concepts as option pricing, portfolio management, and risk measurement. Here I describe a synthetic course based on my book [1] that outlines both worlds: Econophysics and Mathematical Finance. The course may be offered as elective for senior undergraduate or graduate Physics majors.

Independent technical review and analysis of hydraulic modeling and hydrology under low-flow conditions of the Des Plaines River near Riverside, Illinois

Science.gov (United States)

Over, Thomas M.; Straub, Timothy D.; Hortness, Jon E.; Murphy, Elizabeth A.

2012-01-01

The U.S. Geological Survey (USGS) has operated a streamgage and published daily flows for the Des Plaines River at Riverside since Oct. 1, 1943. A HEC-RAS model has been developed to estimate the effect of the removal of Hofmann Dam near the gage on low-flow elevations in the reach approximately 3 miles upstream from the dam. The Village of Riverside, the Illinois Department of Natural Resources-Office of Water Resources (IDNR-OWR), and the U. S. Army Corps of Engineers-Chicago District (USACE-Chicago) are interested in verifying the performance of the HEC-RAS model for specific low-flow conditions, and obtaining an estimate of selected daily flow quantiles and other low-flow statistics for a selected period of record that best represents current hydrologic conditions. Because the USGS publishes streamflow records for the Des Plaines River system and provides unbiased analyses of flows and stream hydraulic characteristics, the USGS served as an Independent Technical Reviewer (ITR) for this study.

Towards a Uniform European Education for Medical Physicists

International Nuclear Information System (INIS)

Christofides, S.

2008-01-01

The European Federation of Organisations in Medical Physics (EFOMP) mission and objectives are briefly presented. The most attention is given to the education and training activities of the EFOMP. Revised EFOMP recommendations on Education, Training and CPD of Medical Physicists and Policy Statements are listed. In order for Medical Physics to be recognised by the European Union as a profession some future activities like Bologna Declaration process, continuous professional development, European Network for Medical Physics training Schools, actions for the harmonisation of the Education and Training of the Medical Physicist in Europe in accordance with EU Directive 2005/36/EC and EU Recommendation 2008/C 111/01 are also discussed

Long the fixation of physicists worldwide, a tiny particle is found

CERN Multimedia

2006-01-01

"After decades of intensive effort by both experimental and theoretical physicists worldwide, a tiny particle with no charge, a very low mass and a lifetime much shorter than a nanosecond, dubbed the "axion", has now been detected by the University at Buffalo physicist who first suggested its existence in a little-read paper as early as 194." (2 pages)

The role of the health physicist in nuclear security.

Science.gov (United States)

Waller, Edward J; van Maanen, Jim

2015-04-01

Health physics is a recognized safety function in the holistic context of the protection of workers, members of the public, and the environment against the hazardous effects of ionizing radiation, often generically designated as radiation protection. The role of the health physicist as protector dates back to the Manhattan Project. Nuclear security is the prevention and detection of, and response to, criminal or intentional unauthorized acts involving or directed at nuclear material, other radioactive material, associated facilities, or associated activities. Its importance has become more visible and pronounced in the post 9/11 environment, and it has a shared purpose with health physics in the context of protection of workers, members of the public, and the environment. However, the duties and responsibilities of the health physicist in the nuclear security domain are neither clearly defined nor recognized, while a fundamental understanding of nuclear phenomena in general, nuclear or other radioactive material specifically, and the potential hazards related to them is required for threat assessment, protection, and risk management. Furthermore, given the unique skills and attributes of professional health physicists, it is argued that the role of the health physicist should encompass all aspects of nuclear security, ranging from input in the development to implementation and execution of an efficient and effective nuclear security regime. As such, health physicists should transcend their current typical role as consultants in nuclear security issues and become fully integrated and recognized experts in the nuclear security domain and decision making process. Issues regarding the security clearances of health physics personnel and the possibility of insider threats must be addressed in the same manner as for other trusted individuals; however, the net gain from recognizing and integrating health physics expertise in all levels of a nuclear security regime far

The role of the biomedical physicist in the education of the healthcare professions: an EFOMP project.

Science.gov (United States)

Caruana, C J; Wasilewska-Radwanska, M; Aurengo, A; Dendy, P P; Karenauskaite, V; Malisan, M R; Meijer, J H; Mornstein, V; Rokita, E; Vano, E; Wucherer, M

2009-09-01

The role of the biomedical physicist in the education of the healthcare professions has not yet been studied in a systematic manner. This article presents the first results of an EFOMP project aimed at researching and developing this important component of the role of the biomedical physicist. A background to the study expands on the reasons that led to the need for the project. This is followed by an extensive review of the published literature regarding the role. This focuses mainly on the teaching contributions within programmes for physicians, diagnostic radiographers, radiation therapists, and the postgraduate medical specializations of radiology, radiotherapy, interventional radiology and cardiology. Finally a summary list of the specific research objectives that need to be immediately addressed is presented. These are the carrying out of a Europe-wide position audit for the role, the construction of a strategic role development model and the design of a curriculum development model suitable for modern healthcare professional education.

Development of the Future Physicists of Florida

Science.gov (United States)

Wade, A.; Weatherford, C.; Cottle, P.; Fannin, S.; Roberts, W.; Fauerbach, M.; Ponti, L.; Sear, J.

2013-03-01

We present the development of the ``Future Physicists of Florida'' (FPF) comprised of Florida university physics professors, middle and high school science teachers, and backed by the Florida Legislature. Our purpose is to address the lack of incoming college freshmen ready and willing to become physics majors. We will discuss the building of FPF and the development of a pipeline for middle and high school students predicted to produce the optimal number of bachelor's degrees in STEM. We will also discuss our use of community-building activities to educate the students, and their parents and teachers about the educational value of taking physics before going to college and potential careers in physics, to entertain them with fun physics related activities in order to peak their interest in physics, and to ultimately inspire the students to become physicists.

TU-G-213-00: The International Electrotechnical Commission (IEC): What Is It and Why Should Medical Physicists Care?

Energy Technology Data Exchange (ETDEWEB)

NONE

2015-06-15

The International Electrotechnical Commission (IEC) writes standards that manufacturers of electrical equipment must comply with. Medical electrical equipment, such as medical imaging, radiation therapy, and radiation dosimetry devices, fall under Technical Committee 62. Of particular interest to medical physicists are the standards developed within Subcommittees (SC) 62B, which addresses diagnostic radiological imaging equipment, and 62C, which addresses equipment for radiation therapy, nuclear medicine and dosimetry. For example, a Working Group of SC 62B is responsible for safety and quality assurance standards for CT scanners and a Working Group of SC 62C is responsible for standards that set requirements for dosimetric safety and accuracy of linacs and proton accelerators. IEC standards thus have an impact on every aspect of a medical physicist’s job, including equipment testing, shielding design, room layout, and workflow. Consequently, it is imperative that US medical physicists know about existing standards, as well as have input on those under development or undergoing revision. The structure of the IEC and current standards development work will be described in detail. The presentation will explain how US medical physicists can learn about IEC standards and contribute to their development. Learning Objectives: Learn about the structure of the IEC and the influence that IEC standards have on the design of equipment for radiology and radiation therapy. Learn about the mechanisms by which the US participates in the development and revision of standards. Understand the specific requirements of several standards having direct relevance to diagnostic and radiation therapy physicists.

More Sci- than Fi, Physicists Create Antimatter

CERN Multimedia

Overbye, Dennis

2002-01-01

Physicists working in Europe announced yesterday that they had passed through nature's looking glass and had created atoms made of antimatter, or antiatoms, opening up the possibility of experiments in a realm once reserved for science fiction writers (5 pages)

An Applied Physicist Does Econometrics

Science.gov (United States)

Taff, L. G.

2010-02-01

The biggest problem those attempting to understand econometric data, via modeling, have is that economics has no F = ma. Without a theoretical underpinning, econometricians have no way to build a good model to fit observations to. Physicists do, and when F = ma failed, we knew it. Still desiring to comprehend econometric data, applied economists turn to mis-applying probability theory---especially with regard to the assumptions concerning random errors---and choosing extremely simplistic analytical formulations of inter-relationships. This introduces model bias to an unknown degree. An applied physicist, used to having to match observations to a numerical or analytical model with a firm theoretical basis, modify the model, re-perform the analysis, and then know why, and when, to delete ``outliers'', is at a considerable advantage when quantitatively analyzing econometric data. I treat two cases. One is to determine the household density distribution of total assets, annual income, age, level of education, race, and marital status. Each of these ``independent'' variables is highly correlated with every other but only current annual income and level of education follow a linear relationship. The other is to discover the functional dependence of total assets on the distribution of assets: total assets has an amazingly tight power law dependence on a quadratic function of portfolio composition. Who knew? )

Is the "glass ceiling" a real problem for women physicists in Argentina?

Science.gov (United States)

Frechero, Marisa A.; Amador, Ana; Pastor, Antonio J. Ramirez; Tamarit, Francisco

2015-12-01

We evaluate the distribution of female physicists in the Argentinean workforce, analyzing the distribution of women at different levels of education and research using several indicators. Although important imbalances still occur, our findings are encouraging and the distribution of female physicists seems to be changing for the better.

Tasks of physicists and graduated engineers in diagnostic radiology

International Nuclear Information System (INIS)

Angerstein, W.

1987-01-01

The tasks of physicists and engineers in diagnostic radiology are compiled and trends of development are discussed. Specific duties can be selected from these tasks for each department and physicist individually. An attempt is made to characterize the specific tasks of medical physics. The most important tasks are concerning subjects of (1) investment planning, (2) quality control and quality assurance, (3) service and maintenance, (4) radiation protection and electrical safety, (5) development, testing and adaption of equipment, (6) assistance in running the radiologic department, (7) research, (8) pre- and postgraduate training, (9) educational training, (10) miscellaneous. (author)

Herbert Fröhlich a physicist ahead of his time

CERN Document Server

Hyland, G J

2015-01-01

This biography provides a stimulating and coherent blend of scientific and personal narratives describing the many achievements of the theoretical physicist Herbert Fröhlich. For more than half a century, Fröhlich was an internationally renowned and much respected figure who exerted a decisive influence, often as a ‘man ahead of his time’, in fields as diverse as meson theory and biology. Although best known for his contributions to the theory of dielectrics and superconductivity, he worked in many other fields, his most important legacy being the pioneering introduction quantum field-theoretical methods into condensed matter physics in 1952, which revolutionised the subsequent development of the subject. Gerard Hyland has written an absorbing and informative account, in which Herbert Fröhlich’s magnetic personality shines through.

Particle physicists join battle against cancer

CERN Multimedia

Cartlidge, Edwin

2005-01-01

Technologies originally developed for experiments in particle physcis are being used to diagnose and treat cancer. About 130 physicists and healthcare proessionals met in London recently to discuss "The future of medical imaging and radiotherapy"; a major theme at the meeting was how technology from particle physics could be used to diagnose and treat cancer (1/2 page)

Clinical Training of Medical Physicists Specializing in Diagnostic Radiology (French Edition)

International Nuclear Information System (INIS)

2012-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for diagnostic radiology. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists based in the clinical setting. However, an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement (RCA) for Research, Development and Training related to Nuclear Sciences for Asia and the Pacific. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia-Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specializing in diagnostic radiology started in 2007 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experiences of clinical training programmes in Australia and New Zealand, the UK and the USA, and was moderated by physicists working in the Asian region. This publication follows the approach of the IAEA publication Training Course Series No. 37, Clinical Training of Medical Physicists specializing in Radiation Oncology. This approach to clinical training has been successfully tested

Clinical Training of Medical Physicists Specializing in Diagnostic Radiology (Spanish Edition)

International Nuclear Information System (INIS)

2013-01-01

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for diagnostic radiology. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists based in the clinical setting. However, an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement (RCA) for Research, Development and Training related to Nuclear Sciences for Asia and the Pacific. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia-Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specializing in diagnostic radiology started in 2007 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experiences of clinical training programmes in Australia and New Zealand, the UK and the USA, and was moderated by physicists working in the Asian region. This publication follows the approach of the IAEA publication Training Course Series No. 37, Clinical Training of Medical Physicists specializing in Radiation Oncology. This approach to clinical training has been successfully tested

The Mental Aftermath - The Mentality of German Physicists 1945-1949

Science.gov (United States)

Hentschel, Klaus

2007-01-01

Few scientific communities have been more thoroughly studied than 20th-century German physicists. Yet their behavior and patterns of thinking immediately after the war remains puzzling. During the first five postwar years they suspended their internecine battles and a strange solidarity emerged. Former enemies were suddenly willing to exonerate each other blindly and even morally upright physicists began to write tirades against the 'denazification mischief' or the 'export of scientists'. Personal idiosyncracies melded into a strangely uniform pattern of rejection or resistance to the Allied occupiers, with attendant repressed feelings and self-pity. Politics was once again perceived as remote, dirty business. It was feared that the least concession of guilt would bring down even more severe sanctions on their discipline. Using tools from the history of mentality, such as analysis of serial publications, these tendenciesare examined. The perspective of emigre physicists, as reflected in their private letters and reports, embellish this portrait.

Educational outcomes of a medical physicist program over the past 10 years in Japan

International Nuclear Information System (INIS)

Kadoya, Noriyuki; Karasawa, Kumiko; Sumida, Iori; Arimura, Hidetaka; Kakinohana, Yasumasa; Kabuki, Shigeto; Monzen, Hajime; Nishio, Teiji; Shirato, Hiroki; Yamada, Syogo

2017-01-01

The promotion plan for the Platform of Human Resource Development for Cancer (Ganpro) was initiated by the Ministry of Education, Culture, Sports, Science and Technology of Japan in 2007, establishing a curriculum for medical physicists. In this study, we surveyed the educational outcomes of the medical physicist program over the past 10 years since the initiation of Ganpro. The Japan Society of Medical Physics mailing list was used to announce this survey. The questionnaire was created by members of the Japanese Board for Medical Physicist Qualification, and was intended for the collection of information regarding the characteristics and career paths of medical physics students. Students who participated in the medical physics program from 2007 to 2016 were enrolled. Thirty-one universities (17 accredited and 14 non-accredited) were represented in the survey. In total, 491, 105 and 6 students were enrolled in the Master's, Doctorate and Residency programs, respectively. Most students held a Bachelor's degree in radiological technology (Master's program, 87%; Doctorate program, 72%). A large number of students with a Master's degree worked as radiological technologists (67%), whereas only 9% (n = 32) worked as medical physicists. In contrast, 53% (n = 28) of the students with a Doctorate degree worked as medical physicists. In total, 602 students (from 31 universities) completed the survey. Overall, although the number of the graduates who worked as medical physicists was small, this number increased annually. It thus seems that medical institutions in Japan are recognizing the necessity of licensed medical physicists in the radiotherapy community.

A questionnaire survey of medical physicist and quality manager for radiation therapy

International Nuclear Information System (INIS)

Nishio, Teiji; Ashino, Yasuo; Onishi, Hiroshi

2008-01-01

A questionnaire survey of medical physicists and quality managers for radiation therapy was performed by the Japanese Society for Therapeutic Radiology and Oncology (JASTRO) Future Planning Committee. We mailed the questionnaire to 726 radiotherapy facilities with the answers returned from 353 radiotherapy facilities. The result showed 178 facilities were staffed by radiotherapy workers who were licensed medical physicists or quality managers. A staff of 289 was licensed radiotherapy workers. Most of the staff were radiotherapy technologists. Quality control for radiation therapy was rated satisfactory according to each facility's assessment. Radiation therapy of high quality requires continued education of medical physicists and quality managers, in addition to keeping up with times for quality control. (author)

Rice Physicist to direct $40M LHC Program

CERN Multimedia

2006-01-01

"Rice Universty announced that physicist B. Paul Padley has been chosen to lead the scientific operations for one of the particle detector systems at the European Organization for Nuclear Research's Large Hadron Collider (LHC)."

Physicists set new record for network data transfer

CERN Multimedia

2007-01-01

"An international team of physicists, computer scientists, and network engineers joined forces to set new records for sustained data transfer between storage systems durint the SuperComputing 2006 (SC06) Bandwidth Challenge (BWC). (3 pages)

Introductory fluid mechanics for physicists and mathematicians

CERN Document Server

Pert, Geoffrey J

2013-01-01

This textbook presents essential methodology for physicists of the theory and applications of fluid mechanics within a single volume.  Building steadily through a syllabus, it will be relevant to almost all undergraduate physics degrees which include an option on hydrodynamics, or a course in which hydrodynamics figures prominently.

Radon as a tracer to characterize the interactions between groundwater and surface water around the ground source heat pump system in riverside area

Science.gov (United States)

Kim, Jaeyeon; Lee, Seong-Sun; Lee, Kang-Kun

2016-04-01

The interaction characteristics between groundwater and surface water was examined by using Radon-222 at Han River Environmental Research Center (HRERC) in Korea where a geothermal resource using indirect open loop ground source heat pump (GSHP) has been developed. For designing a high efficiency performance of the open loop system in shallow aquifer, the riverside area was selected for great advantage of full capacity of well. From this reason groundwater properties of the study site can be easily influenced by influx of surrounding Han River. Therefore, 12 groundwater wells were used for monitoring radon concentration and groundwater level with fluctuation of river stage from May, 2014 to Apr., 2015. The short term monitoring data showed that the radon concentration was changed in accordance with flow meter data which was reflected well by the river stage fluctuation. The spatial distribution of radon concentration from long term monitoring data was also found to be affected by water level fluctuation by nearby dam activity and seasonal effect such as heavy rainfall and groundwater pumping. The estimated residence time indicates that river flows to the study site change its direction according to the combined effect of river stage and groundwater hydrology. In the linear regression of the values, flow velocities were yielded around 0.04 to 0.25 m/day which were similar to flow meter data. These results reveal that Radon-222 can be used as an appropriate environmental tracer in examining the characteristics of interaction in consideration of fluctuating river flow on operation of GSHP in the riverside area. ACKNOWLEDGEMENT This work was supported by the research project of "Advanced Technology for Groundwater Development and Application in Riversides (Geowater+) in "Water Resources Management Program (code 11 Technology Innovation C05)" of the MOLIT and the KAIA in Korea.

WE-H-201-02: Emerging Models and Opportunities in Global Health for Medical Physicists Powered by Information and Communication Technologies

Energy Technology Data Exchange (ETDEWEB)

Ngwa, W. [Harvard Medical School (United States)

2016-06-15

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

WE-H-201-02: Emerging Models and Opportunities in Global Health for Medical Physicists Powered by Information and Communication Technologies

International Nuclear Information System (INIS)

Ngwa, W.

2016-01-01

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

French physicist's brother denies links to Al Qaeda

CERN Multimedia

Overbye, Dennis

2009-01-01

"Days after the French authorities placed a physicist working in Switzerland under formal investigation in a terror case, a portrait of the man and his work has begun to emerge from interviews with officials and his lawyer"

Particle physicists want to expand open access

CERN Multimedia

Kaiser, Jocelyn

2006-01-01

"Particle physicists have come up with a novel way to promote free, immediate access to journal articles. Led by CERN, the giant lab near Geneva, Switzerland, thay want to raise at lesat $6 million a year to begin buying open access to all published papers in their field." (1/2 page)

Particle physicists want to expand open access

CERN Multimedia

Kaiser, Jocelyn

2006-01-01

"Particle physicists have come up with a novel way to promote free, immediate access to journal articles. Led by CERN, the gian lab near Geneva, Switzerland, they want to raise at least $6 million a year to begin buying open access to all published papers in their field." (1 page)

Lise meitner and her contribution to the discovery of nuclear fission

International Nuclear Information System (INIS)

Dai Hongyi; Wang Shangwu

1999-01-01

Lise Meitner, a famous nuclear physicist in both theory and experiment, played a unique role and made outstanding contributions in the course of the discovery of nuclear fission reviewed. However, due to a variety of reasons, her great contributions were not recognized during her time

The role of physicist in the medical use of radiation and radioisotopes

International Nuclear Information System (INIS)

Bose, A.; Eisenlohr, H.

1977-01-01

The role of physicists in fields of radiotherapy and radiobiology are brought out in detail. The importance of the physicists in dose measurements, design of equipment and calculations of doses etc. is pointed out. Their responsibility in radiation protection where constant vigilance is necessary and an effort to minimise the dose with maximum benefits to the patient should always be contemplated, is also stressed. (A.K.)

POLA PENGELOLAAN SANITASI DI PERKAMPUNGAN BANTARAN SUNGAI CODE, YOGYAKARTA (Pattern of Sanitation Management in Code Riverside Settlements, Yogyakarta

Directory of Open Access Journals (Sweden)

Atyanto Dharoko

2005-11-01

Full Text Available ABSTRAK Bantaran Sungai Code merupakan wilayah pusat kota Yogyakarta yang dipenuhi oleh perkampungan padat penduduknya. Sistem kehidupan masyarakat kampung bantaran Sungai Code sudah terintegrasi dengan kehidupan sosial ekonomi masyarakat kota Yogyakarta. Permasalahan yang muncul adalah rendahnya kualitas intrastruktur terutama fasilitas sanitasi karena kendala terbatasnya kemampuan ekonomi masyarakat dan bentuk topograti yang terjal. Akhirnya sungai merupakan tujuan pembuangan akhir limbah sanitasi lingkungan tanpa proses terlebih dahulu. Penelitian ini menyimpulkan bahwa pola sanitasi komunal lebih dapat diterima oleh masyarakat dari pertimbangan sosial, ekonomi dan kondisi lingkungan yang terjal. Di masa mendatang sistem ini perlu dijadikan dasar pengembangan teknis sistem sanitasi bantaran sungai untuk memperoleh sustainability yang tinggi.   ABSTRACT Code riverside is part of central business district in Yogyakarta composed by densely populated kampungs. Community way of life in the kampungs have been successfully integrated with social-economic of the urban community. The crusial problem faced by the community is lack of infrastructure facilities especially sanitation. This situation is very much related to social-economic constraints of the community and topographical situation as fisical constraints. Finally, sanitation disposals have to be discharged into Code River without pre processing. The study concludes that communal sanitation system becomes the most acceptable system based on socio-economic and topographical constraints. In the future communal sanitation system may become a basic technical considerations to develop sanitation system in the riverside settlements and to achieve sustainability.

Face to Face Tinker, Builder, Physicist, and Teacher !

Indian Academy of Sciences (India)

to science, highlighting the factors and circumstances that guided them in making the career choice to be a scientist. Tinker, Builder, Physicist, and .... Did you feel its influence on your environment in physics? MF: Stanford did want to bring ...

Internal qualification and credentialing of radiation oncology physicists to perform patient special procedures

Directory of Open Access Journals (Sweden)

Michael D Mills

2014-01-01

Full Text Available In the arena of radiation oncology special procedures, medical physicists are often the focus professionals for implementation and administration of advanced and complex technologies. One of the most vexing and challenging aspects of managing complexity concerns the ongoing internal qualification and credentialing of radiation oncology physicists to perform patient special procedures. To demonstrate ongoing qualification, a physicist must a document initial training and successful completion of competencies to implement and perform this procedure, b demonstrate familiarity with all aspects of the commissioning and quality assurance process, c demonstrate continuing education respecting this procedure, d demonstrate the peer-reviewed completion of a minimum number of patient special procedures during a specified time span, and e demonstrate satisfactory overall progress toward maintenance of specialty board certification. In many respects, this information complement is similar to that required by an accredited residency program in therapy physics. In this investigation, we report on the design of a management tool to qualify staff radiation oncology physicists to deliver patient procedures.

Building 887: An Aladdin's Cave for Physicists

CERN Multimedia

2001-01-01

Building 887 on the Prévessin site is home to numerous experiments bringing together physicists and engineers from around the world. Its diversity makes the huge building a replica of CERN in miniature. The Installation unit of the SL EA group in front of the support structure for the ATLAS muon chambers. From left to right, seated: Pierre Gimenez, Yves Bonnet, Yves Naveau, Alain Pinget, Christian Becquet, Camille Adenot; standing: Philippe Guillot, Thierry Reynes, Monserrat Zurita-Perez, Claude Ferrari et Denis Gacon. The big wheel to be used for the ATLAS muon chambers (see below) is much the most spectacular installation currently occupying Building 887. But it is far from being the only attraction. Push open the heavy doors of this immense hall and it is a bit like entering a physicists' Aladdin's cave. The building, 55 metres wide and 300 metres long, is a treasure trove of engineering and technology, a CERN in miniature, housing dozens of collaborations from all over the world. With its 150...

My recollections as a physicist

Energy Technology Data Exchange (ETDEWEB)

Tsai, Yung-su

1997-03-01

This presentation is a talk presented by the author at a Physics Symposium of the 50th anniversary of the Taiwan University, in December 1996. The author describes how he became a physicist, and then presents a brief outline of his professional career, most of which has centered at Stanford Linear Accelerator Center. He was involved in the discovery of the {tau} lepton, and in studies of CP violation through decay of the {tau}, in addition to studies of semileptonic decay of t, B, D, K, and {pi}.

From falling bodies to radio waves classical physicists and their discoveries

CERN Document Server

Segrè, Emilio

1984-01-01

Meet a diverse group of highly original thinkers and learn about their lives and achievements: Galileo, a founding father of astronomy and physics; Christiaan Huygens, a seventeenth-century pioneer of wave-particle duality; and Isaac Newton, the English mathematician and physicist who laid the groundwork for a scientific revolution and promoted radical investigation as the means to reveal nature's hidden workings.This chronicle of physics and physicists traces the development of scientific thought from these originators to their successors, among them Faraday, Watts, Helmholtz, Maxwell, Boltzm

Dad's in the Garage: Santa Barbara Physicists in the Long 1970s

Science.gov (United States)

Mody, Cyrus

2013-03-01

American physicists faced many challenges in the 1970s: declining research budgets; public skepticism of scientific authority; declining student enrollments; and pressure to shift to topics such as biomedicine, environmental remediation, alternative energy, public housing and transport, and disability technologies. This paper examines the responses to these challenges of a small group of Santa Barbara physicists. While this group is not representative of the American physics profession, the success and failure of their responses to changed conditions tells us something about how American physicists got through the 1970s, and about the origins of some features of American physics today. The three physicists examined here are Philip Wyatt, David Phillips, and Virgil Elings. In the late `60s, Wyatt left a defense think tank to found an instrumentation firm. The Santa Barbara oil spill and other factors pushed that firm toward civilian markets in biomedicine and pollution measurement. Phillips joined Wyatt's firm from UCSB, while also founding his own company, largely to sell electronic devices for parapsychology. Phillips was also the junior partner in a master's of scientific instrumentation degree curriculum founded by Elings in order to save UCSB Physics' graduate program. Through the MSI program, Elings moved into biomedical research and became a serial entrepreneur. By the 1990s, Wyatt, Phillips, and Elings' turn toward academic entrepreneurship, dual military-civilian markets for physics start-ups, and interdisciplinary collaborations between physicists and life scientists were no longer unusual. Together, their journey through the `70s shows how varied the physics' profession's response to crisis was, and how much it pivoted on new interactions between university and industry.

SLAC physicists develop test for string theory

CERN Multimedia

Yajnik, Juhi

2006-01-01

"Under certain conditions, string theory solves many of the questions wracking the minds of physicists, but until recently it had one major flaw - it could not be tested. SLAC (Stanford Linear Accelerator Center) scientists have found a way to test this revolutionary theory, which posits that there are 10 or 11 dimensions in our universe" (1 page)

Half Life: The Divided Life of Bruno Pontecorvo, Physicist or Spy

International Nuclear Information System (INIS)

Close, Frank

2016-01-01

It was at the height of the Cold War, in the summer of 1950, when Bruno Pontecorvo mysteriously vanished behind the Iron Curtain. Who was he, and what caused him to disappear? Was he simply a physicist, or also a spy and communist radical? A protege of Enrico Fermi, Pontecorvo was one of the most promising nuclear physicists in the world. He spent years hunting for the Higgs boson of his day - the neutrino - a nearly massless particle thought to be essential to the process of particle decay. His work on the Manhattan Project helped to usher in the nuclear age, and confirmed his reputation as a brilliant physicist. Why, then, would he disappear as he stood on the cusp of true greatness, perhaps even the Nobel Prize? In this book, physicist and historian Frank Close offers a heretofore untold history of Pontecorvo's life, based on unprecedented access to Pontecorvo's friends and family and the Russian scientists with whom he would later work. Close takes a microscope to Pontecorvo's life, combining a thorough biography of one of the most important scientists of the twentieth century with the drama of Cold War espionage. With all the elements of a Cold War thriller - classified atomic research, an infamous double agent, a possible kidnapping by Soviet operatives - this book is a history of nuclear physics at perhaps its most powerful: when it created the bomb

A survey of Canadian medical physicists: software quality assurance of in-house software.

Science.gov (United States)

Salomons, Greg J; Kelly, Diane

2015-01-05

This paper reports on a survey of medical physicists who write and use in-house written software as part of their professional work. The goal of the survey was to assess the extent of in-house software usage and the desire or need for related software quality guidelines. The survey contained eight multiple-choice questions, a ranking question, and seven free text questions. The survey was sent to medical physicists associated with cancer centers across Canada. The respondents to the survey expressed interest in having guidelines to help them in their software-related work, but also demonstrated extensive skills in the area of testing, safety, and communication. These existing skills form a basis for medical physicists to establish a set of software quality guidelines.

High energy physicists and graduate students. 1978 census

Energy Technology Data Exchange (ETDEWEB)

None

1978-11-01

This listing of physicists and students associated with the U.S. high-energy physics program was obtained by asking the research groups, laboratories, and other agencies involved to update previous information. The first part of this volume is an alphabetical listing and includes only the name, rank, and institution of high-energy physicists and graduate students. The second part of the volume is arranged by institution. Within each institution, the faculty (or permanent staff) and the graduate students are presented in separate alphabetical lists. For each person the entry indicates the year and institution of highest degree, rank and institutional affiliation with starting dates, up to three items selected from a list of research specialties, and sources of federal support. For the graduate students, there is also indicated an estimated date for their degree. Where appropriate, a person is listed at more than one institution. Except as noted in the headings, the information is intended to indicate the situation as of January 1, 1978. (RWR)

High energy physicists and graduate students. 1978 census

International Nuclear Information System (INIS)

1978-11-01

This listing of physicists and students associated with the U.S. high-energy physics program was obtained by asking the research groups, laboratories, and other agencies involved to update previous information. The first part of this volume is an alphabetical listing and includes only the name, rank, and institution of high-energy physicists and graduate students. The second part of the volume is arranged by institution. Within each institution, the faculty (or permanent staff) and the graduate students are presented in separate alphabetical lists. For each person the entry indicates birthdate, the year and institution of highest degree, rank and institutional affiliation with starting dates, up to three items selected from a list of research specialties, and sources of federal support. For the graduate students, there is also indicated an estimated date for their degree. Where appropriate, a person is listed at more than one institution. Except as noted in the headings, the information is intended to indicate the situation as of January 1, 1978

Initial antimicrobial activity studies of plants of the riverside forests of the southern Uruguay River

Directory of Open Access Journals (Sweden)

Ana Bertucci

Full Text Available Development of new antimicrobial compounds against different microorganisms is becoming critically important, as infectious diseases are still one of the leading causes of death in the world. Plants can be a useful source of these lead compounds. In this study, 66 extracts of 25 plants of the riverside forest of southern Uruguay River were studied for antimicrobial activity against Staphylococcus aureus, Listeria inocua, Escherichia coli, Pseudomonas aeruginosa, Mycobacterium tuberculosis, Aspergillus niger and Candida albicans. Fifty-three of these extracts showed some kind of antimicrobial activity. Six of these (Eugenia mansoni, Eugenia repanda, Myrcianthes cisplatensis, Paullinia ellegans, Petunia sp and Ruprechtia laxiflora presented activity against Mycobacterium tuberculosis with MIC values as low as 50 μg/mL.

Roles and Responsibilities, and Education and Training Requirements for Clinically Qualified Medical Physicists (Russian Edition)

International Nuclear Information System (INIS)

2014-01-01

This publication addresses the shortfall of well trained and clinically qualified medical physicists working in radiation medicine. The roles, responsibilities and clinical training requirements of medical physicists have not always been well defined or well understood by health care professionals, health authorities and regulatory agencies. To fill this gap, this publication provides recommendations for the academic education and clinical training of clinically qualified medical physicists, including recommendations for their accreditation certification and registration, along with continuous professional development. The goal is to establish criteria that support the harmonization of education and clinical training worldwide

Experts in the cold war. War experiences and peace conceptions of US-American physicists 1920-1963

International Nuclear Information System (INIS)

Wunderle, Ulrike

2015-01-01

The study is dedicated to the American elite of nuclear physicists, which explained after the second world war the possibilities of their science for war and peace. What induced their thinking and handling? The focus lies on the scientific shapings and war experiences of the first really international generation of physicists, which began in the 1920th years their career before many of their representatives had to fly from the NS regime from Europe and cooperated in the Manhattan project in the construction of the atomic bomb. These experiences the author refers to in order to get on the track of the explanations of the exper elite in the immediate afterwar time and in the cold war. How far their internationally and by actual war experiences shaped thinking about their own contribution as scientist to the national security - in the sense of discouragement or the cooperative conflict regulation - found its expression in the cold war, is drawn on different action levels of the participants from the Geneve conference ''Atoms for Peace'' of 1955 until the signing of the so-called Limited Test Ban Treaty of 1963.

Murdered physicist leaves Iran reeling

Science.gov (United States)

Dacey, James

2010-02-01

The murder of the Iranian physicist Masoud Alimohammadi last month has left the country's academic community in a state of shock. Alimohammadi, a 50-year-old physics professor at the University of Tehran, was killed on 12 January by a remote-controlled bomb attached to the side of a motorcycle outside his home. The bomb was detonated as he left for work, but the reason for the murder remained unclear as Physics World went to press. Reports by the Iranian state media blamed the US and Israel for the attack - a claim that the US later described as "absurd".

C++ for Particle Physicists

CERN Multimedia

Monique Duval

2002-01-01

Paul Kunz will be giving his very popular and highly recommended C++ course again on 22-26 July (6 * 3 hour lectures). The course is organised by the CERN Technical Training Programme, it costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page, accessible from the Technical Training pages. Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

C++ for Particle Physicists

CERN Multimedia

2003-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 10 - 14 March. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://cern.ch/TechnicalTraining/ENSTEC/p2002/Software/cpppp_e.asp Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

C++ FOR PARTICLE PHYSICISTS

CERN Multimedia

Monique Duval

2002-01-01

Paul Kunz will be giving his very popular and highly recommended C++ course again on 22-26 July (6 * 3 hour lectures). The course is organised by the CERN Technical Training Programme, it costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page, accessible from the Technical Training pages. Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

C++ FOR PARTICLE PHYSICISTS

CERN Multimedia

TECHNICAL TRAINING; Tel. 74460

2001-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on March 5 to 9. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://www.cern.ch/Training/ENSTEC/P9798/Software/cpppp_e.htm Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

C++ for Particle Physicists

CERN Multimedia

Monique Duval

2004-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 15 �- 19 November. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page: Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

C++ for Particle Physicists

CERN Multimedia

Monique Duval

2004-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 15 - 19 November. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page: Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Caverns for neutrino physicists

International Nuclear Information System (INIS)

Duffaut, P.

2005-01-01

Since more than 20 years, particle physicists are using underground facilities to catch cosmic neutrinos and to get rid of other parasitic cosmic radiations. The observation of significant numbers of neutrinos requires the use of large volume caverns at important depths. This article presents such existing facilities in the US, France, Italy, UK, Spain, Japan (Kamioka), Russia and India and the different projects in competition for the setting up of a mega-ton detector with a volume of 1 million m 3 of water (DUSEL project in the US, MEMPHYS project in France, Hyperkamiokande in Japan). Several suitable underground spaces are available in these countries (abandoned mines, tunnels) but each has its advantages and drawbacks in terms of rock mechanics, access and seismicity. (J.S.)

Time and ageing: a physicist's look at gerontology

NARCIS (Netherlands)

Uffink, J.

2000-01-01

To enter, as a physicist, into the field of gerontology brings along certain dangers. I will presumably fall into pitfalls of misunderstanding or step on some other booby traps which those who are familiar with the terrain have learned to avoid. This danger is probably even greater since the

The adventurous life of Friedrich Georg Houtermans, physicist (1903-1966)

CERN Document Server

Braccini, Saverio; Ereditato, Antonio; Scampoli, Paola

2012-01-01

The physicist Friedrich Houtermans (1903-1966) was an essential promoter and proponent of the development of physics in Berne. He introduced a number of activities in the field of elementary particles, with a special focus on the physics of cosmic rays, and important contributions in applied physics. This biography of Houtermans was written by Edoardo Amaldi and was almost finished just before his unexpected death in 1989. The editors have only corrected typographical errors and have introduced only minimal text changes in order to preserve the original content. Additionally they have collected and included unpublished pictures and memories from Houtermans’ students and collaborators. The text is the result of a thorough and intensive study on Houtermans’ life and character carried out by Edoardo Amaldi. It is more than a biography, since the figure of Houtermans is set in a historical perspective of Europe between the two world wars. This book will be of great interest to historians and historians of sci...

A survey of Canadian medical physicists: software quality assurance of in‐house software

Science.gov (United States)

Kelly, Diane

2015-01-01

This paper reports on a survey of medical physicists who write and use in‐house written software as part of their professional work. The goal of the survey was to assess the extent of in‐house software usage and the desire or need for related software quality guidelines. The survey contained eight multiple‐choice questions, a ranking question, and seven free text questions. The survey was sent to medical physicists associated with cancer centers across Canada. The respondents to the survey expressed interest in having guidelines to help them in their software‐related work, but also demonstrated extensive skills in the area of testing, safety, and communication. These existing skills form a basis for medical physicists to establish a set of software quality guidelines. PACS number: 87.55.Qr PMID:25679168

A Physicist Role in Innovation within IBM Research

Science.gov (United States)

Gallagher, William

2014-03-01

The broad and deep insight a physicist brings to the goings on in a large technology company lead to many varied and exciting opportunities. Examples in my own career include contributions to important understanding of new breakthroughs (understanding the basic anisotropy of high temperature superconductivity), bringing vital physics understanding to ambitious engineering projects (basic switching and noise margins in digital Josephson junction technology), and initiating and growing large applied projects based on fundamental physics breakthroughs (magnetoresistive random access memory - MRAM). Success at such undertakings within a large enterprise involves a number of factors. Always seeking out the best expert advice and the best collaborators in unfamiliar technical areas as new ideas develop is enormously helpful and not at all difficult within a large innovative organization. While being imaginative and optimistic, one must also remain brutally honest about the potential value of new endeavors, the hurdles ahead, and the likelihood of success. Always, however, there is no substitute hard work. I can attest that the results of efforts along these directions within a technology company can be very exciting and satisfying, and the process along the way a whole lot of fun.

The duty health physicist program at Byron Nuclear Power Station

International Nuclear Information System (INIS)

Goldsmith, D.G.; Carey, T.R.

1987-01-01

The Duty Health Physicist Program at Byron Station was established to deal with routine health physics tasks and provide an interface between frontline and upper radiation-chemistry management. The program consists of a weekly rotation of selected members of the health physics staff into the duty health physicist position to handle the assigned duty tasks. The tasks include, but are not limited to, daily isotopic and air sample review, effluent release package review, maximum permissible concentration calculations, dose approvals, as-low-as-reasonably-achievable action review of pending jobs, and general availability to answer questions and address problems in health-physics-related areas of plant operation. The daily attendance of the duty health physicist at the radiation-chemistry and station plan-of-the-day meetings has increased the overall presence and visibility of the health physics program to upper station management and other station departments. Since its inception in July of 1985, the Duty Health Physics Program has been a major contributor to the observed 50% reduction in reportable personnel errors in the radiation-chemistry department (based on personnel-error-related deviation reports and license event reports generated on the radiation-chemistry department at Byron Station). Although difficulty to quantify, other important benefits of this program are also discussed in this paper

Physicists get INSPIREd

CERN Multimedia

CERN Bulletin

2010-01-01

Particle physicists thrive on information. They first create information by performing experiments or elaborating theoretical conjectures and then they share it through publications and various web tools. The INSPIRE service, just released, will bring state of the art information retrieval to the fingertips of researchers.   Keeping track of the information shared within the particle physics community has long been the task of libraries at the larger labs, such as CERN, DESY, Fermilab and SLAC, as well as the focus of indispensible services like arXiv and those of the Particle Data Group. In 2007, many providers of information in the field came together for a summit at SLAC to see how physics information resources could be enhanced, and the INSPIRE project emerged from that meeting. The vision behind INSPIRE was built by a survey launched by the four labs to evaluate the real needs of the community. INSPIRE responds to these directives from the community by combining the most successful aspe...

Summertime for physicists

CERN Multimedia

2013-01-01

Summer for particle physicists is the season for “summer conferences” and the past week saw two big meetings in full swing. The 2013 European Physical Society High-Energy Physics (EPS-HEP) conference took place in Stockholm, Sweden, while the Strangeness in Quark Matter conference visited Birmingham in the UK for its 2013 edition.   Such conferences usually mark the culmination of months of hard work to prepare new results and, if nature is kind, they also provide the stage for the announcement of discoveries. But more than that, they allow people to network with colleagues from far and wide. I was at EPS-HEP, which belies its name and, like particle physics itself, has a global reach, with people attending from Asia and the Americas. This year there were some 750 attendees, including many young people. The programme of parallel sessions allowed many of them to present results they had worked on in what can be huge collaborations. It’s impressive to see their eff...

Particle accelerators installed in hospitals: the need for a program of training for medical physicists

International Nuclear Information System (INIS)

Brandan, M.E.

1989-01-01

This paper was presented at the session which closed the round table. The need for setting up a program of professional training directed by hospital physicists who have functioned for some time as medical physicists in the health centers of the country was proposed. (Author)

Physicists make the most of antimatter

International Nuclear Information System (INIS)

Kalmus, Peter

1987-01-01

The paper concerns the detection and creation of antimatter. The concept of antimatter was first suggested by Schuster in 1898, was predicted by Dirac in the 1930's and discovered in an accelerator experiment in California in the 1950's. So far, physicists have found no evidence of large amounts of antimatter in nature. However, the creation of artificial antimatter in the laboratory is a possibility. The facilities at CERN should enable the making of antimatter, by using the antiproton beam from LEAR, to make antihydrogen. (UK)

The Status of Women Physicists in Pakistan

Science.gov (United States)

Hasnain, Aziz Fatima; Islam, Jabeen

2009-04-01

A significant number of women physicists work in high-ranking positions in the universities and research institutes of Pakistan; however, the number of women is much lower compared with men. We surveyed these women about the challenges they faced in the workplace and the pace of their progress and scientific work in a male-dominant society. We also surveyed girls' attitudes toward studying physics at the graduate and undergraduate levels.

"Angels & Demons" May Help Physicists Explain What Matters

Science.gov (United States)

Basken, Paul

2009-01-01

It's not every day that scientific researchers need to defend themselves against charges of destroying humanity. And yet a group of several dozen physicists associated with the Large Hadron Collider may be getting pretty good at it--and, at the same time, actively engaging in public education and debate in ways that university scientists have…

Physicists see golden needle in a micro-cosmic haystack

CERN Multimedia

2004-01-01

An international team of physicists examining an extremely rare form of subatomic particle decay has discovered evidence for the highly sought process, which could be an indication of new forces beyond those incorporated in the Standard Model of particle physics (1 page)

Curriculum for education and training of Medical Physicists in Nuclear Medicine

DEFF Research Database (Denmark)

Del Guerra, Alberto; Bardies, Manuel; Belcari, Nicola

2013-01-01

and Competence approach along the lines recommended by the European Qualifications Framework. The minimum level expected in each topic in the theoretical knowledge and practical experience sections is intended to bring trainees up to the requirements expected of a Medical Physicist entering the field of Nuclear...... Medicine. CONCLUSIONS: This new joint EANM/EFOMP European guideline curriculum is a further step to harmonise specialist training of Medical Physicists in Nuclear Medicine within Europe. It provides a common framework for national Medical Physics societies to develop or benchmark their own curricula....... The responsibility for the implementation and accreditation of these standards and guidelines resides within national training and regulatory bodies....

From falling bodies to radiowaves: classical physicists and their discoveries

International Nuclear Information System (INIS)

Segre, E.

1984-01-01

This chronicle of physics and physicists traces the development of scientific thought from the works of the founding fathers - Galileo, Huggens and Newton - to the more recent discoveries of Maxwell, Boltzmann, and Gibbs

Dr. Inside and Dr. Outside: Physicists Involved With National Security and Foreign Policy

Science.gov (United States)

Zimmerman, Peter D.

2009-05-01

Physicists have had a special interest in American national security and arms control since at least the Manhattan Project. They have served our country in uniform and in the career civil service. Some have left academic careers for brief periods to work as political appointees, consultants, or resident scholars and then returned to an academic life, but often with changed goals. Some have tried government life and left nearly immediately, while others dipped a toe in and decided to stay. I will look at real-life examples, mostly using real names, drawn from my career and circle of colleagues to try to explain why some physicists have been extremely successful, why others have not, and what happens to a physicist who moved to Washington and decides to stay. I will also discuss routes into public service for those interesting in giving it a try.

Working with the medical equipment: the status of the medical physicist in Romania today

International Nuclear Information System (INIS)

Leanca, Valeria

2008-01-01

Full text: The presentation will emphasize on the following points: a) General Information; b) Medical Physics activities in the following fields; c) Role of the medical physicist; d) The National Government Organization and the implementation of the status of the medical physicist working in the hospitals in Romania; e) Organizational Structure; f) Purpose; g) Aims; h) Legislation of Medical Physics; i) Medical equipment in Romania (author)

Thirty years from now: future physics contributions in nuclear medicine

Energy Technology Data Exchange (ETDEWEB)

Bailey, Dale L [School of Physics and Faculty of Health Sciences, University of Sydney, Sydney, 2006 (Australia); Department of Nuclear Medicine, Royal North Shore Hospital, St. Leonards, NSW 2065 (Australia)

2014-05-01

This paper is the first in a series of invited perspectives by pioneers of nuclear medicine imaging and physics. A medical physicist and a nuclear medicine physician each take a backward and a forward look at the contributions of physics to nuclear medicine. Here, we provide a forward look from the medical physicist’s perspective. The author examines a number of developments in nuclear medicine and discusses the ways in which physics has contributed to these. Future developments are postulated in the context of an increasingly personalised approach to medical diagnostics and therapies. A skill set for the next generation of medical physicists in nuclear medicine is proposed in the context of the increasing complexity of ‘Molecular Imaging’ in the next three decades. The author sees a shift away from ‘traditional’ roles in instrumentation QA to more innovative approaches in understanding radiobiology and human disease.

Thirty years from now: future physics contributions in nuclear medicine

International Nuclear Information System (INIS)

Bailey, Dale L

2014-01-01

This paper is the first in a series of invited perspectives by pioneers of nuclear medicine imaging and physics. A medical physicist and a nuclear medicine physician each take a backward and a forward look at the contributions of physics to nuclear medicine. Here, we provide a forward look from the medical physicist’s perspective. The author examines a number of developments in nuclear medicine and discusses the ways in which physics has contributed to these. Future developments are postulated in the context of an increasingly personalised approach to medical diagnostics and therapies. A skill set for the next generation of medical physicists in nuclear medicine is proposed in the context of the increasing complexity of ‘Molecular Imaging’ in the next three decades. The author sees a shift away from ‘traditional’ roles in instrumentation QA to more innovative approaches in understanding radiobiology and human disease.

C++ for Particle Physicists

CERN Multimedia

Technical Training; Tel. 74924

2001-01-01

Paul Kunz will be giving his very popular and highly recommended C++ course again on 8 - 12 October. The course costs 200 CHF, and advance registration is required. Please note that this will be the last session in 2001 and the next one is planned for March 2002. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://www.cern.ch/Training/ENSTEC/P2001/Software/cpppp_e.htm   Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

Radiocesium decontamination of a riverside in Fukushima, Japan.

Science.gov (United States)

Nishikiori, Tatsuhiro; Suzuki, Satoshi

2017-10-01

Extensive decontamination measures have been implemented in the area affected by the Fukushima Dai-ichi nuclear disaster. Typical decontamination measures, such as removing topsoil of several centimeters in depth, are not suitable for rivers where contaminated sediments have been deposited. A decontamination measure was tested that considered the spatial distribution of radiocesium at the lower part of a tributary of the Abukuma River in Fukushima. The radiocesium distribution in the flood channel was vertically and horizontally highly heterogeneous. In some parts, the activity concentration was high (>10 kBq/kg for 137 Cs) even at depths of 25 cm in the sediment. This may be due to plant growth in the flood channel favoring the deposition of sediment with high activity concentration. On the basis of the radiocesium distribution, the flood channel sediment was removed to a depth of 15-35 cm, which accumulated the most radiocesium (>3.0 kBq/kg for the sum of 134 Cs and 137 Cs). The upper 5 cm of soil was removed from the dike slopes. The river bed was not decontaminated because the activity concentration was low (decontamination measure reduced the air dose rate by a factor of approximately two, demonstrating the effectiveness of our measures. Annual external doses were calculated for when this part of the dike and the flood channel is used for commuting to school and outdoor education. The doses during the activities at the test site accounted for only 1-2% of the value during daily life in the surrounding area, indicating that radiation exposure during riverside activities is limited. Copyright © 2017 Elsevier Ltd. All rights reserved.

Physicists polish one model while looking to the next

International Nuclear Information System (INIS)

Hellemans, A.

1995-01-01

High-energy physicists' current explanation for the behavior of subatomic particles and forces, known as the Standard Model, is doing just fine. That was the take-home message for the 800 delegates who gathered here from 27 July to 2 August for the international Europhysics Conference on High-Energy Physics. open-quotes Mainly this was a conference of consolidation, steady progress, many very beautiful and detailed results,close quotes Christopher Llewellyn Smith, director general of CERN, the European particle physics laboratory, told Science. But while a multitude of presentations described ever more accurate tests and confirmations of the model, physicists also discussed hints that a whole new range of phenomena beyond the Standard Model is lurking just above the energies of current accelerators-and within range of the next generation of experiments. Other topics covered in this meeting report include the practical side of detecting and recording events in future particle accelerators and some new information on the elusive neutrino

Fractional derivatives for physicists and engineers background and theory

CERN Document Server

Uchaikin, Vladimir V

2013-01-01

The first derivative of a particle coordinate means its velocity, the second means its acceleration, but what does a fractional order derivative mean? Where does it come from, how does it work, where does it lead to? The two-volume book written on high didactic level answers these questions. Fractional Derivatives for Physicists and Engineers— The first volume contains a clear introduction into such a modern branch of analysis as the fractional calculus. The second develops a wide panorama of applications of the fractional calculus to various physical problems. This book recovers new perspectives in front of the reader dealing with turbulence and semiconductors, plasma and thermodynamics, mechanics and quantum optics, nanophysics and astrophysics.  The book is addressed to students, engineers and physicists, specialists in theory of probability and statistics, in mathematical modeling and numerical simulations, to everybody who doesn't wish to stay apart from the new mathematical methods becoming more and ...

Compendium to radiation physics for medical physicists 300 problems and solutions

CERN Document Server

Podgorsak, Ervin B

2014-01-01

This exercise book contains 300 typical problems and exercises in modern physics and radiation physics with complete solutions, detailed equations and graphs. This textbook is linked directly with the textbook "Radiation Physics for Medical Physicists", Springer (2010) but can also be used in combination with other related textbooks. For ease of use, this textbook has exactly the same organizational layout (14 chapters, 128 sections) as the "Radiation Physics for Medical Physicists" textbook and each section is covered by at least one problem with solution given. Equations, figures and tables are cross-referenced between the two books. It is the only large compilation of textbook material and associated solved problems in medical physics, radiation physics, and biophysics.

Carl Friedrich von Weizsaecker - a physicist and philosopher in the shade of the nuclear bomb. A conversation on nuclear weapons and the responsibility of nuclear scientists

International Nuclear Information System (INIS)

Schaaf, M.

1996-06-01

The 50th anniversary of the first nuclear explosion (16th July 1945) prompted the editor of this collection to look again at the part played by German physicists in the nuclear weapons issue. Carl Friedrich von Weizsaecker, one of the last surviving witnesses of this period, kindly agreed to give a comprehensive interview on the German nuclear programme and the responsibility of physicists. The interview is published here for the first time and forms the central part of this brochure. It is complemented by two statements by Edward Teller and two historical letters. The author, in preparing this compilation, had in mind to contribute towards science-historical discussion and to give younger colleagues a graphic idea of the conflict surrounding nuclear research. (orig.) [de

Education and training of hospital physicists in Sweden

International Nuclear Information System (INIS)

Walstam, R.

1974-01-01

The Swedish programme for educating hospital physicists differs from many others by introducing radiation physics at the undergraduate level and requiring an extensive in-service training. In view of the rapid growth of the profession this is considered valuable. The present educational capacity has caused noticeable competition and it is generally necessary to have much higher qualifications than the minimum requirements. (JIW)

SU-B-BRA-00: The Medical Physicist Value Proposition for Tomorrow and Today

International Nuclear Information System (INIS)

Sherouse, G.

2016-01-01

In the current rapidly changing Healthcare environment, many groups are competing for limited resources. How can medical physicists position themselves to be a relevant stakeholder in the discussion of how those resources are allocated Our value goes beyond what can be shown in a business plan and is heavily involved with safety and quality. Three areas will be explored: What is our value? Who needs to receive that message? How do we communicate that message? To help frame the discussion in terms of how other stakeholders may view the value of medical physicists, a physician and an administrator will present their perspective. Lastly, a multidisciplinary panel will present real life examples of strategies that can be utilized today to establish the value of medical physicists. The presentation of these examples will lead into an interactive question and answer time. V. Willcut, I work for Elekta. There was no research associated with this talk.

SU-B-BRA-00: The Medical Physicist Value Proposition for Tomorrow and Today

Energy Technology Data Exchange (ETDEWEB)

Sherouse, G. [Landauer Medical Physics, Glenwood, IL (United States)

2016-06-15

In the current rapidly changing Healthcare environment, many groups are competing for limited resources. How can medical physicists position themselves to be a relevant stakeholder in the discussion of how those resources are allocated Our value goes beyond what can be shown in a business plan and is heavily involved with safety and quality. Three areas will be explored: What is our value? Who needs to receive that message? How do we communicate that message? To help frame the discussion in terms of how other stakeholders may view the value of medical physicists, a physician and an administrator will present their perspective. Lastly, a multidisciplinary panel will present real life examples of strategies that can be utilized today to establish the value of medical physicists. The presentation of these examples will lead into an interactive question and answer time. V. Willcut, I work for Elekta. There was no research associated with this talk.

German lab unveils plan to build physicists' next collider

CERN Multimedia

Abott, A

2001-01-01

An international team of physicists are to propose the construction of a major collider. 'TESLA' - the 'Tera electron volt Energy Superconducting Linear Accelerator' will be a linear electron-positron collider based on superconducting resonators. It will be based at DESY and cost around three billion US dollars (2 pages).

The role of the biomedical physicist in the education of the healthcare professions: An EFOMP project

NARCIS (Netherlands)

Caruana, C.J.; Wasilewska-Radwanska, M.; Aurengo, A.; Dendy, P.P.; Karenauskaite, V.; Malisan, M.R.; Meijer, J.H.; Mornstein, V.; Rokita, E.; Vano, E.; Wucherer, M.

2009-01-01

The role of the biomedical physicist in the education of the healthcare professions has not yet been studied in a systematic manner. This article presents the first results of an EFOMP project aimed at researching and developing this important component of the role of the biomedical physicist. A

High energy physicists and graduate students: 1981 census

International Nuclear Information System (INIS)

1982-02-01

This listing of physicists and students associated with the US high energy physics program has been compiled in the Division of High Energy Physics of the Office of Energy Research of the US Department of Energy. This listing has been obtained by asking the research groups, laboratories, and other agencies involved to update previous information. This volume is in two parts. The first part is an alphabetical listing and includes only the name, rank, and institution of high energy physicists and graduate students. The second part of the volume is arranged by institution. Within each institution, the faculty (or permanent staff) and the graduate students are presented in separate alphabetical lists. For each person the entry indicates their birthdate, the year and institution of their highest degree, their rank and institutional affiliation with starting dates, up to three items selected from a list of research specialties, and their sources of federal support. For the graduate students, there is also indicated an estimated date for their degree. Where appropriate, a person is listed at more than one institution. Except as noted in the headings, the information is intended to indicate the situation as of January 1, 1981

A Physicist's Journey In The Nuclear Power World

Science.gov (United States)

Starr, Chauncey

2000-03-01

As a participant in the development of civilian nuclear power plants for the past half century, the author presents some of his insights to its history that may be of interest to today's applied physicists. Nuclear power development has involved a mixture of creative vision, science, engineering, and unusual technical, economic, and social obstacles. Nuclear power programs were initiated during the euphoric era of public support for new science immediately following World War II -- a support that lasted almost two decades. Subsequently, nuclear power has had to face a complex mix of public concerns and criticism. The author's involvment in some of these circumstances will be anecdotally described. Although the physics of fission and its byproducts remains at the heart of all nuclear reactor designs, its embodiment in practical energy sources has been shaped by the limitations of engineering primarily and economics secondarily. Very influential has been the continuing interplay with the military's weapons and propulsion programs, and the government's political policies. In this respect, nuclear power's history provides a learning experience that may be applicable to some of the large scale demonstration projects that physicists pursue today.

ENSDF: a nuclear structure data bank for nuclear physicists

International Nuclear Information System (INIS)

Blachot, J.

1987-02-01

Data Banks have tremendously grown these last years. All the nuclear Structure information are now in the ENSDF. This file is used for the Nuclear Data Sheets publication. The part which contains only Adopted Data could be used as a Data Bank for Nuclear Physicists. Examples of retrevial are given [fr

WE-G-19A-01: Radiologists and Medical Physicists: Working Together to Achieve Common Goals

International Nuclear Information System (INIS)

Jones, A; Ma, J; Steele, J; Choi, H

2014-01-01

It is vitally important that medical physicists understand the clinical questions that radiologists are trying to answer with patient images. Knowledge of the types of information the radiologist needs helps medical physicists configure imaging protocols that appropriately balance radiation dose, time, and image quality. The ability to communicate with radiologists and understand medical terminology, anatomy, and physiology is key to creating such imaging protocols. In this session, radiologists will present clinical cases and describe the information they are seeking in the clinical images. Medical physicists will then discuss how imaging protocols are configured. Learning Objectives: Understand the types of information that radiologists seek in medical images. Apply this understanding in configuring the imaging equipment to deliver this information. Develop strategies for working with physician colleagues

WE-G-19A-01: Radiologists and Medical Physicists: Working Together to Achieve Common Goals

Energy Technology Data Exchange (ETDEWEB)

Jones, A; Ma, J; Steele, J; Choi, H [UT MD Anderson Cancer Center, Houston, TX (United States)

2014-06-15

It is vitally important that medical physicists understand the clinical questions that radiologists are trying to answer with patient images. Knowledge of the types of information the radiologist needs helps medical physicists configure imaging protocols that appropriately balance radiation dose, time, and image quality. The ability to communicate with radiologists and understand medical terminology, anatomy, and physiology is key to creating such imaging protocols. In this session, radiologists will present clinical cases and describe the information they are seeking in the clinical images. Medical physicists will then discuss how imaging protocols are configured. Learning Objectives: Understand the types of information that radiologists seek in medical images. Apply this understanding in configuring the imaging equipment to deliver this information. Develop strategies for working with physician colleagues.

The Delicate Balance between Research, Teaching and Outreach: A Case Study of Physicists in K-12 Education

Science.gov (United States)

Leslie-Pelecky, Diandra

2003-04-01

Recent calls from a variety of sectors including some funding agencies and professional societies encourage physicists to take a more active interest in the education of K-12 students and their teachers. Although there are a broad range of possible activities, finding time to participate is always a challenge for the researcher. How does the busy physicist ensure that the time devoted to education or outreach activities produces meaningful results without adversely affecting his or her research program? Project Fulcrum, a NSF-funded program that teams science and math graduate students at the University of Nebraska-Lincoln with 4th -8th grade teachers in the Lincoln Public Schools, presents a case study of how research scientists can be meaningfully involved with K-12 education. Project Fulcrum's preliminary results indicate that the impact scientists have in the classroom goes far beyond providing expertise in physics, and turns out to be very different than originally anticipated. There are a wide variety of models for involvement in education and outreach that cover a broad span of time and energy commitments. Careful project choice, establishing administrative infrastructure, collaborating with other departments and colleges, and involving colleagues can optimize the impact-made-to-time-spent ratio. Challenges such as project evaluation, overcoming the negative attitudes of some physicists towards anything not related to research, and ensuring that participants get appropriate credit for their efforts will also be discussed. The conclusion will address the personal and professional rewards of involvement in education and outreach. This work is funded by the National Science Foundation (NSF-DGE0086358). The author wishes to acknowledge the contributions of co-PIs G. Buck, S. Kirby, R. Kirby and P. Dussault, and all of the Project Fulcrum Fellows and Teachers.

The role of medical physicist in health care and radiation protection

International Nuclear Information System (INIS)

Mattsson, S.; Adliene, D.

2004-01-01

Medical physics is a part of physics that is associated with the practice of medicine dealing with a use of various types of ionizing and non-ionizing radiation for medical purposes as well as with the radiation protection of patients and personnel. The role, responsibilities and duties of medical physicists in the fields of radiation therapy, diagnostic imaging using X-rays and magnetic resonance methods, diagnostics and therapeutic nuclear medicine, radiation dosimetry and radiation protection are discussed in this paper. It is shown that, the medical physicists have the unique possibility to combine their knowledge in medical radiation physics with the recent achievements in medicine and technology and to apply this knowledge for the adequately safe treatment or diagnosis of patients during radiological procedures. (author)

Code of Ethics for the American Association of Physicists in Medicine: report of Task Group 109.

Science.gov (United States)

Serago, Christopher F; Adnani, Nabil; Bank, Morris I; BenComo, Jose A; Duan, Jun; Fairobent, Lynne; Freedman, D Jay; Halvorsen, Per H; Hendee, William R; Herman, Michael G; Morse, Richard K; Mower, Herbert W; Pfeiffer, Douglas E; Root, William J; Sherouse, George W; Vossler, Matthew K; Wallace, Robert E; Walters, Barbara

2009-01-01

A comprehensive Code of Ethics for the members of the American Association of Physicists in Medicine (AAPM) is presented as the report of Task Group 109 which consolidates previous AAPM ethics policies into a unified document. The membership of the AAPM is increasingly diverse. Prior existing AAPM ethics polices were applicable specifically to medical physicists, and did not encompass other types of members such as health physicists, regulators, corporate affiliates, physicians, scientists, engineers, those in training, or other health care professionals. Prior AAPM ethics policies did not specifically address research, education, or business ethics. The Ethics Guidelines of this new Code of Ethics have four major sections: professional conduct, research ethics, education ethics, and business ethics. Some elements of each major section may be duplicated in other sections, so that readers interested in a particular aspect of the code do not need to read the entire document for all relevant information. The prior Complaint Procedure has also been incorporated into this Code of Ethics. This Code of Ethics (PP 24-A) replaces the following AAPM policies: Ethical Guidelines for Vacating a Position (PP 4-B); Ethical Guidelines for Reviewing the Work of Another Physicist (PP 5-C); Guidelines for Ethical Practice for Medical Physicists (PP 8-D); and Ethics Complaint Procedure (PP 21-A). The AAPM Board of Directors approved this Code or Ethics on July 31, 2008.

Role and responsibilities of medical physicists in radiology and membership of Bulgaria in European union

International Nuclear Information System (INIS)

Todorov, V.; Vassileva, J.

2006-01-01

Full text: Medical radiology and especially the radiotherapy is the birthplace of modern medical physics. Medical physicists have proven place and important role in research and practice in radiotherapy. They share the responsibility with physicians in varied daily work in this medical speciality. The rapid development of medical imaging in last decades increases the need of competence of medical physicists. Quality assurance in Diagnostic Radiology aimed to achieve maximum diagnostic information at minimal risk and with minimal prize, which is obligatory for the members of the EU, is impossible to be implemented without medical physicists. The enforced recently Ordinance 30/2005 of the Ministry of Health forms the regulatory basis of obligatory implementation of Quality Assurance at medical use of ionizing radiation in the country. This Ordinance introduces the requirements of the EURATOM 97/43 Directive on health protection of individuals against the dangers of ionizing radiation in relation to medical exposure. It regulates also the responsibilities of medical physicists in radiology. Forthcoming is the practical implementation of these requirements, which needs the competence and efforts of Medical physics community as well as of radiologists in the country

Quantum field theory II: quantum electrodynamics. A bridge between mathematicians and physicists

International Nuclear Information System (INIS)

Zeidler, Eberhard

2009-01-01

This is the second volume of a modern introduction to quantum field theory which addresses both mathematicians and physicists ranging from advanced undergraduate students to professional scientists. This book seeks to bridge the existing gap between the different languages used by mathematicians and physicists. For students of mathematics it is shown that detailed knowledge of the physical background helps to discover interesting interrelationships between quite diverse mathematical topics. For students of physics fairly advanced mathematics, beyond that included in the usual curriculum in physics, is presented. The present volume concerns a detailed study of the mathematical and physical aspects of the quantum theory of light. (orig.)

Quantum field theory II: quantum electrodynamics. A bridge between mathematicians and physicists

Energy Technology Data Exchange (ETDEWEB)

Zeidler, Eberhard [Max Planck Institute for Mathematics in the Sciences, Leipzig (Germany)

2009-07-01

This is the second volume of a modern introduction to quantum field theory which addresses both mathematicians and physicists ranging from advanced undergraduate students to professional scientists. This book seeks to bridge the existing gap between the different languages used by mathematicians and physicists. For students of mathematics it is shown that detailed knowledge of the physical background helps to discover interesting interrelationships between quite diverse mathematical topics. For students of physics fairly advanced mathematics, beyond that included in the usual curriculum in physics, is presented. The present volume concerns a detailed study of the mathematical and physical aspects of the quantum theory of light. (orig.)

Qualitative and quantitative data concerning the edaphic mesofauna in the forest ecosystems from the middle section of the Prut riverside

Directory of Open Access Journals (Sweden)

CĂLUGĂR Adina

2006-09-01

Full Text Available The paper contains the results of some researches devoted to the diversity of the edaphic mesofauna, with a view to estimate the effects induced by secondary aridization phenomenon. This study has been developed in the middle section of Prut riverside, in natural forests and forest plantations. It was realized a comparison between the natural habitats and those exposed to the drought phenomenon, because of their emplacement, out of the built dike. It has been analyzed four orders of mites (Oribatida, Gamasida, Actinedida and Acaridida and one order of insects (Collembola; we are taken into consideration other groups of microarthropods, too.

Proceedings of the 2. Brazilian Congress of Physicists on Medicine

International Nuclear Information System (INIS)

1987-01-01

The works of the 2. Brazilian Congress of Physicists on Medicine are presented, including course of 'Tomography by Nuclear Magnetic Resonance' and 'New Techniques in the Physics of X Ray Diagnostic' and topics about radiotherapy, radiodiagnostic and dosimetry. (C.G.C.) [pt

Proceedings of the school for young high energy physicists

International Nuclear Information System (INIS)

McCubbin, N.A.

1988-01-01

The paper concerns the Proceedings of the 'School for Young High Energy Physicists', which was held at the Rutherford Appleton Laboratory, Sept. 1987. The lectures were presented in four courses, and were intended to give experimentalists a grounding in Relativistic Quantum Field Theory. The four lectures courses were each selected for INIS and indexed separately. (U.K.)

The medical physicist: Criteria and recommendations for their academic training, clinical training and certification in Latin America

International Nuclear Information System (INIS)

2010-01-01

During the last decade, the International Atomic Energy Agency (IAEA) has promoted a considerable number of technical cooperation activities and regular program linked to the establishment of educational programs in radiophysical medicine in Latin America. Despite these efforts, the amount of medical physicists in the various areas of radiological medicine (radiotherapy, nuclear medicine, radiodiagnosis) remains insufficient. In addition, many medical physicists currently associated with hospitals have inadequate training, and professional conditions (situation, salary, etc.) are very far from those of their colleagues in industrialized countries. This will result in the profession of clinical medical physicist not sufficiently attractive in Latin America. The medium-term projections indicate that the continuous evolution toward a medical care based increasingly on high technology will require even more well-trained medical physicists, thereby exacerbating the current situation. In response to the problems exposed, and considering the keen interest of the Member States of the IAEA to find a consensus solution, and an effective cooperation that would enable them to solve this problem, the ARCAL project LXXXIII was launched in 2005, strengthening the performance of medical physicists in Latin America. As part of its activities is a group of experts with the task of evaluating the problem of medical physics in the region and to develop recommendations, which are contained in this document, for harmonizing training and professional recognition of medical physicists. For the Pan American Health Organization (PAHO), medical physics is an area of special attention. For many years it has been promoting safe and effective use of radiation in health and giving technical advice to the ministries of health of Latin America and Caribbean region, in this field. Taking, therefore, on account the common interest of the IAEA and PAHO by tackling this problem, the historic and

Marie Curie: Physicist and Woman

Science.gov (United States)

Howes, Ruth

Marie Sklodowska was born in Warsaw on November 7, 1867. Girls were not allowed to attend college in Poland, so Marie found a well-paying post as a governess in rural village which she held for three years while helping her older sister complete medical school in Paris. Then Marie moved to Paris and graduated first in her class at the Sorbonne with a master's degree in physics in 1893. In 1895, she married the talented young physicist, Pierre Curie. Marie decided to investigate the radioactive components of the mineral pitchblende for her dissertation. The work involved chemical analysis of a ton of material in an unheated shed. Pierre joined her and at the end of 1898, the Curies announced the discovery of radium and polonium. Through 1899, Marie labored to measure the atomic weight of radium. In 1903, Marie earned her doctorate, the first for a woman in France, and the Curies split the Nobel Prize in Physics with Henri Becquerel. They became widely known, besieged by the press and frequently invited to make presentations and be awarded honors. They hated fame and both suffered bad health. In April, 1906, Pierre Curie was struck by a wagon and killed instantly. Marie was left as a single mother with two young daughters. Fortunately, the Sorbonne hired her to fill Pierre's position. In 1911, she was rejected for membership in the French Academy of Science because she was a woman. Also in 1911, she was accused of having an affair with a married French physicist Paul Langevin. The resulting scandal hit the press and brought angry mobs to her home. In the middle of this hullaballoo, she was informed that she had won a second Nobel Prize, this time in Chemistry. When World War I broke out, Marie mounted x-ray units on cars and became a heroine. She visited the United States in 1921 where President Harding presented her with a gram of radium. She continued her scientific studies in spite of declining health until her death in 1934. Professor Emerita.

The Experiences of an Entrepreneurial Physicist

Science.gov (United States)

Kermani, Moe

2012-10-01

The majority of pre- and post-graduate training in physics is focused on the acquisition of hard skills necessary to pursue academic research within a specific discipline of the broader field. Often many physics graduates view a career transition from academia to the private sector with much consternation. In this presentation, Moe Kermani will share his experience in making the transition and discuss how elements of post graduate training in physics provide a good foundation for success as an entrepreneur. This presentation is primarily aimed at young physicists and graduate students that are considering a transition from the academic sector to the world of technology startups.

Got Skills? On-the-Job Activities of Physicists

Science.gov (United States)

Ivie, Rachel

2011-03-01

It goes almost without saying that physics doctorates do a lot more than just physics research or teaching at their jobs. But what exactly do they do? First, I will share basic data showing where physics doctorates are employed. Then I will present data from two of AIP's surveys about the employment of physicists. The first set of data comes from our survey of physics PhDs one year after doctorate. We will consider how often physics doctorates do a variety of activities on the job, including management, technical writing, teamwork, design and development, programming, and advanced mathematics. The second set of data comes from AIP's new survey of PhDs in physics 10 to 13 years after graduation. Data for many of the same activities will be shown for physics doctorates who have been in the workplace about a decade. Depending on the type of job, most industrially employed physics doctorates do some type of physics at work, but they are also very likely to report managing projects, writing for technical audiences, working on a team, and collaborating with non-physicists, among many other activities. This examination of the types of activities physics doctorates perform in the workplace will provide insight on the non-scientific training that would benefit graduate students the most.

Science and Society: The Life and Work of a Great Russian Physicist

CERN Multimedia

2002-01-01

In 1934, the eminent Russian physicist and optics specialist Sergei Ivanovitch Vavilov (1891-1951) was the first, together with Pavel Cherenkov, to observe the famous radiation we now call Cherenkov radiation, a discovery commonly used in the Laboratory's detectors. His most well-known discoveries also include that of the non-linear optical effect in 1926. Vavilov founded the Lebedev Physics Institute in Moscow, which prospered under his directorship, and contributed to the rise of nuclear physics and cosmic radiation in the USSR. The highpoint of his career came in 1945, when he was appointed President of the Soviet Academy of Sciences. However, Sergei Vavilov worked under the Stalinist dictatorship, which was responsible for the death of his elder brother, the biologist Nikolai Vavilov. His own health compromised, he died two months before his 60th birthday. His remarkable life, which is interesting not only for his scientific discoveries but also in terms of its historical context, will be the subject of...

Review the Physicists show EVERYTHING happens at the same time

DEFF Research Database (Denmark)

javadi, Hossein; Forouzbakhsh, Farshid

2016-01-01

Physicist Max Tegmark claims flow of time is illusion. EVERYTHING happens at the same time, Max Tegmark said. [1] To understand how this theory is consistent with the truth, it should be compared with physical previous theories and experiences. The theory is backed up Einstein’s theory...

SU-E-P-01: An Informative Review On the Role of Diagnostic Medical Physicist in the Academic and Private Medical Centers

International Nuclear Information System (INIS)

Weir, V; Zhang, J

2014-01-01

Purpose: The role of physicist in the academic and private hospital environment continues to evolve and expand. This becomes more obvious with the newly revised requirements of the Joint Commission (JC) on imaging modalities and the continued updated requirements of ACR accreditation for medical physics (i.e., starting in June 2014, a physicists test will be needed before US accreditation). We provide an informative review on the role of diagnostic medical physicist and hope that our experience will expedite junior physicists in understanding their role in medical centers, and be ready to more opportunities. Methods: Based on our experience, diagnostic medical physicists in both academic and private medical centers perform several clinical functions. These include providing clinical service and physics support, ensuring that all ionizing radiation devices are tested and operated in compliance with the State and Federal laws, regulations and guidelines. We also discuss the training and education required to ensure that the radiation exposure to patients and staff is as low as reasonably achievable. We review the overlapping roles of medical and health physicist in some institutions. Results: A detailed scheme on the new requirements (effective 7/1/2014) of the JC is provided. In 2015, new standards for fluoroscopy, cone beam CT and the qualifications of staff will be phased in. A summary of new ACR requirements for different modalities is presented. Medical physicist have other duties such as sitting on CT and fluoroscopy committees for protocols design, training of non-radiologists to meet the new fluoroscopy rules, as well as helping with special therapies such as Yittrium 90 cases. Conclusion: Medical physicists in both academic and private hospitals are positioned to be more involved and prominent. Diagnostic physicists need to be more proactive to involve themselves in the day to day activities of the radiology department

SU-E-P-01: An Informative Review On the Role of Diagnostic Medical Physicist in the Academic and Private Medical Centers

Energy Technology Data Exchange (ETDEWEB)

Weir, V [Baylor Health Care System, Dallas, TX (United States); Zhang, J [University of Kentucky, Lexington, KY (United States)

2014-06-01

Purpose: The role of physicist in the academic and private hospital environment continues to evolve and expand. This becomes more obvious with the newly revised requirements of the Joint Commission (JC) on imaging modalities and the continued updated requirements of ACR accreditation for medical physics (i.e., starting in June 2014, a physicists test will be needed before US accreditation). We provide an informative review on the role of diagnostic medical physicist and hope that our experience will expedite junior physicists in understanding their role in medical centers, and be ready to more opportunities. Methods: Based on our experience, diagnostic medical physicists in both academic and private medical centers perform several clinical functions. These include providing clinical service and physics support, ensuring that all ionizing radiation devices are tested and operated in compliance with the State and Federal laws, regulations and guidelines. We also discuss the training and education required to ensure that the radiation exposure to patients and staff is as low as reasonably achievable. We review the overlapping roles of medical and health physicist in some institutions. Results: A detailed scheme on the new requirements (effective 7/1/2014) of the JC is provided. In 2015, new standards for fluoroscopy, cone beam CT and the qualifications of staff will be phased in. A summary of new ACR requirements for different modalities is presented. Medical physicist have other duties such as sitting on CT and fluoroscopy committees for protocols design, training of non-radiologists to meet the new fluoroscopy rules, as well as helping with special therapies such as Yittrium 90 cases. Conclusion: Medical physicists in both academic and private hospitals are positioned to be more involved and prominent. Diagnostic physicists need to be more proactive to involve themselves in the day to day activities of the radiology department.

Mathematical methods for physicists a comprehensive guide

CERN Document Server

Arfken, George B; Harris, Frank E

2012-01-01

Now in its 7th edition, Mathematical Methods for Physicists continues to provide all the mathematical methods that aspiring scientists and engineers are likely to encounter as students and beginning researchers. This bestselling text provides mathematical relations and their proofs essential to the study of physics and related fields. While retaining the key features of the 6th edition, the new edition provides a more careful balance of explanation, theory, and examples. Taking a problem-solving-skills approach to incorporating theorems with applications, the book's improved focus w

AN ANTHOLOGY OF THE DISTINGUISHED ACHIEVEMENTS IN SCIENCE AND TECHNIQUE. PART 31: PORTRAIT OF THE KHARKIV PHYSICIST ALEXANDER ILYICH AKHIEZER

Directory of Open Access Journals (Sweden)

M.I. Baranov

2016-05-01

Full Text Available Purpose. Description is in the short form of the basic distinguished scientific achievements, features of personality and way of life of the known Kharkov physicist-theorist A.I. Akhiezer. Methodology. Existent scientific approaches for treatment and systematization of physical knowledges. Methods of historical method at research of development in human society of basic sections of theoretical physics. Results. Short information is resulted about the basic creative and vital stages, and also fundamental scientific achievements of the indicated prominent physicist of the XX century. Some personal qualities of this Kharkov physicist-theorist, becoming a founder known in the world of physical school are described. Originality. First the Kharkov scientist-electro-physicist for the wide circle of readers imagined a short scientifically-historical essay the known physicist of contemporaneity, being based on his scientific labours and published materials about him. Practical value. Scientific popularization of creative activity of the known Kharkov physicist and his achievements in area of theoretical physics. Next reminder a wide reader on the example of creative life in science and got prominent scientific results of labour of one human personality known in the scientific world about incessant in modern society connection of times and generations.

General programs of specialized education of radiological physicists in the Czech Republic

International Nuclear Information System (INIS)

Dvorak, P.; Judas, L.; Richter, V.; Novak, L.

2005-01-01

Specialized Education of Czech radiological physicists in diagnostic radiology (DR), nuclear medicine (NM) or radiotherapy (RT) follows-up to regulated university master program. A form and content of Specialized Education which will be defined by General Programs must therefore reflect previous step. Graduates from Specialized Education will be fully competent clinical radiological physicists for DR, NM or RT according to their branch. Therefore, we strongly recommend that General Programs are made very carefully reflecting requirements of Specialized Education and current status of the field in the Czech Republic. Currently, CAMP works on its own version of General Program for each branch. CAMP is ready to collaborate closely with all other bodies included in preparation of General Programs and with the Czech Ministry of Health. (authors)

The Battle for Heavy Water Three physicists' heroic exploits

CERN Multimedia

2002-01-01

Up until the end of the 1970s you could still catch a glimpse of his massive silhouette in the corridors of CERN. Lew Kowarksi, one of the pioneers of the Laboratory, was not only a great physicist; he was also a genuine hero of World War II. In 1940, along with Frédéric Joliot and Hans von Halban, Lew Kowarski managed to get the entire world supply of heavy water away to safety from the Nazis after a fantastic escape from occupied France. At the end of the war, the three physicists played themselves in a film about their adventures entitled 'la Bataille de l'eau lourde'. This film, which has been loaned to us by the French National Film Library, will be shown at CERN for the first time next Thursday. At the beginning of the war, heavy water (D20, two atoms of deuterium and one oxygen atom) was of strategic importance. In 1939 Frédéric Joliot, aided by Hans von Halban and Lew Kowarski, demonstrated the nuclear chain reaction and the moderator role that heavy water plays in it. A few weeks before the inv...

School for Young High Energy Physicists

CERN Document Server

Evans, M E

2003-01-01

Forty-seven experimental particle physicists attended the 2002 Summer School, held, as usual, at The Cosener's House in Abingdon during September. The weather was glorious allowing a number of tutorials and impromptu seminars to take place in the lovely gardens. The lectures were of a high standard and were delivered and received enthusiastically, providing material for lively discussions in tutorials and elsewhere. The students each gave a ten-minute seminar and the general quality of the talks was impressive and the time keeping excellent. The activities described ranged from front-line physics analysis to preparations for the next generation of machines and detectors, and gave a clear indication of the breadth of particle physics activities in the UK

Engineering excellence in breakthrough biomedical technologies: bioengineering at the University of California, Riverside.

Science.gov (United States)

Schultz, Jane S; Rodgers, V G J

2012-07-01

The Department of Bioengineering at the University of California, Riverside (UCR), was established in 2006 and is the youngest department in the Bourns College of Engineering. It is an interdisciplinary research engine that builds strength from highly recognized experts in biochemistry, biophysics, biology, and engineering, focusing on common critical themes. The range of faculty research interests is notable for its diversity, from the basic cell biology through cell function to the physiology of the whole organism, each directed at breakthroughs in biomedical devices for measurement and therapy. The department forges future leaders in bioengineering, mirroring the field in being energetic, interdisciplinary, and fast moving at the frontiers of biomedical discoveries. Our educational programs combine a solid foundation in bio logical sciences and engineering, diverse communication skills, and training in the most advanced quantitative bioengineering research. Bioengineering at UCR also includes the Bioengineering Interdepartmental Graduate (BIG) program. With its slogan Start-Grow-Be-BIG, it is already recognized for its many accomplishments, including being third in the nation in 2011 for bioengineering students receiving National Science Foundation graduate research fellowships as well as being one of the most ethnically inclusive programs in the nation.

Review the Physicists show EVERYTHING happens at the same time

OpenAIRE

javadi, Hossein; Forouzbakhsh, Farshid

2016-01-01

Physicist Max Tegmark claims flow of time is illusion. EVERYTHING happens at the same time, Max Tegmark said. [1] To understand how this theory is consistent with the truth, it should be compared with physical previous theories and experiences. The theory is backed up Einstein’s theory of relativity, Max Tegmark said. [1

ATLAS Physicist in Space

CERN Multimedia

Bengt Lund-Jensen

2007-01-01

On December 9, the former ATLAS physicist Christer Fuglesang was launched into space onboard the STS-116 Space Shuttle flight from Kennedy Space Center in Florida. Christer worked on the development of the accordion-type liquid argon calorimeter and SUSY simulations in what eventually became ATLAS until summer 1992 when he became one out of six astronaut trainees with the European Space Agency (ESA). His selection out of a very large number of applicants from all over the ESA member states involved a number of tests in order to choose the most suitable candidates. As ESA astronaut Christer trained with the Russian Soyuz programme in Star City outside of Moscow from 1993 until 1996, when he moved to Houston to train for space shuttle missions with NASA. Christer belonged to the backup crew for the Euromir95 mission. After additional training in Russia, Christer qualified as ‘Soyuz return commander’ in 1998. Christer rerouting cables during his second space walk. (Photo: courtesy NASA) During...

The contribution of medical physics to the development of psoralen photochemotherapy (PUVA) in the UK: a personal reminiscence

Energy Technology Data Exchange (ETDEWEB)

Diffey, Brian [Regional Medical Physics Department, Newcastle General Hospital, Newcastle upon Tyne NE4 6BE (United Kingdom)

2006-07-07

Psoralen photochemotherapy (PUVA) is the combined treatment of skin disorders with a photosensitizing drug (Psoralen) and UltraViolet A radiation. The introduction of PUVA therapy has arguably been the most important development in dermatology over the past 30 years and from the first days of the treatment being introduced in the UK, British medical physicists were an integral part of the effort to establish it. Medical physicists have contributed to this development in a number of ways, from designing irradiation units in the early days of the technique, through to collaborating with dermatologists in prosecuting clinical and experimental studies aimed at improving patient outcomes. That the dose of UVA radiation is administered quantitatively, and not qualitatively, has probably been the single most important contribution made by several medical physicists over this period. However, despite concerns that were expressed almost 30 years ago about the accuracy with which UVA doses are administered to patients, the medical physics community still has some way to go before we can be satisfied that statements about UVA irradiance and dose can be made with confidence. (review)

Paul Baillon presents the book "Differential manifolds: a basic approach for experimental physicists" | 25 March

CERN Multimedia

CERN Library

2014-01-01

Tuesday 25 March 2014 at 4 p.m. in the Library, bldg. 52-1-052 "Differential manifolds: a basic approach for experimental physicists" by Paul Baillon,  World Scientific, 2013, ISBN 978-981-4449-56-4. Differential manifold is the framework of particle physics and astrophysics nowadays. It is important for all research physicists to be accustomed to it, and even experimental physicists should be able to manipulate equations and expressions in this framework. This book gives a comprehensive description of the basics of differential manifold with a full proof of elements. A large part of the book is devoted to the basic mathematical concepts, which are all necessary for the development of the differential manifold. This book is self-consistent; it starts from first principles. The mathematical framework is the set theory with its axioms and its formal logic. No special knowledge is needed. Coffee will be served from 3.30 p.m.

Interaction of Academic Community of Siberian Physicists with Authorities in the First Post-war Decade (Tomsk Scientific and Educational Park Case Study

Directory of Open Access Journals (Sweden)

Alexander N. Sorokin

2013-01-01

Full Text Available Author analyzes the main stages of the generation and development of the scientific community of physicists in Siberia at the end of XIX – the mid XX centuries. Particular attention is given to the relationship physicists Tomsk’s universities and research institutes with authority. Identified and analyzed the causes, course and results of the ideological and scientific campaigns had affected Tomsk physicists. Author consider the socio-political situation in the Tomsk scientific-educational complex, defined the role of party organizations of universities, research institutes, the city and region in the research and teaching activities of physicists

Training requirements for health physicists in the decontamination/decommissioning field

International Nuclear Information System (INIS)

Copenhaver, E.D.; Parzyck, D.C.

1986-01-01

While a significant decrease in the number of new facilities requiring health physics surveillance has occurred in the past decade, there has been a tremendous increase in the need for health physicists to fill regulatory requirements at existing facilities and the Decontamination and Decommissioning requirements of older facilities nearing the end of their operational lifetime. There is a continuing long-term need to provide trained health physicists with the special skills to meet these requirements. Decontamination and decommissioning programs require both basic and specialized health physics activities to be performed (1) to evaluate the radiation environment of the facility under consideration, (2) to establish the standards to which cleanup activities must be pursued, and (3) to adequately protect the personnel involved in the cleanup. Performance-based training, based on job task analysis, is an appropriate way to define the different types of health physics expertise required for D and D programs. Materials have been developed to describe potential job requirements in the radiation protection field, and the appropriate training goals to meet these requirements. 14 refs., 3 tabs

Training requirements for health physicists in the decontamination/decommissioning field

International Nuclear Information System (INIS)

Copenhaver, E.D.; Parzyck, D.C.

1986-01-01

While a significant decrease in the number of new facilities requiring health physics surveillance has occurred in the past decade, there has been a tremendous increase in the need for health physicists to fill regulatory requirements at existing facilities and the Decontamination and Decommissioning requirements of older facilities nearing the end of their operational lifetime. There is a continuing long-term need to provide trained health physicists with the special skills to meet these requirements. Decontamination and decommissioning programs require both basic and specialized health physics activities to be performed (1) to evaluate the radiation environment of the facility under consideration, (2) to establish the standards to which cleanup activities must be pursued, and (3) to adequately protect the personnel involved in the cleanup. Performance-based training, based on job task analysis, is an appropriate way to define the different types of health physics expertise required for D and D programs. Materials have been developed to describe potential job requirements in the radiation protection field, and the appropriate training goals to meet these requirements

WE-H-201-04: Models for Developing Medical Physics Educators and Education Programs in the Developing Countries and the Potential Role of US Universities and Individual Medical Physicists

Energy Technology Data Exchange (ETDEWEB)

Sprawls, P. [Sprawls Educational Foundation, Montreat, NC (United States)

2016-06-15

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

WE-H-201-04: Models for Developing Medical Physics Educators and Education Programs in the Developing Countries and the Potential Role of US Universities and Individual Medical Physicists

International Nuclear Information System (INIS)

Sprawls, P.

2016-01-01

health. Thanks to ICTs, there are growing opportunities for Medical Physicists to reach out beyond the bunker and impact the world far beyond, without even having to travel. These growing opportunities in global health for Medical Physicists, powered by ICTs, will be highlighted in this presentation, illustrated by high impact examples/models across the globe that are improving patient safety and healthcare outcomes, saving lives. Learning Objectives: Published definitions of global health and the emerging field of global radiation oncology Learn about the transformative potential of ICTs in global radiation oncology care, research and education with focus on Medical Physics Learn about high impact examples of ICT-powered global radiation oncology and the increasing opportunities for participation by Medical Physicists. Yakov Pipman - The number and scope of volunteer Medical Physics activities in support of low-to-middle income countries has been increasing gradually. This happens through a variety of formal channels and to some extent through less formal but personal initiatives. A good deal of effort is dedicated by many, but many more could be recruited through a structured framework to volunteer. We will look into typical volunteer activities and how they fit with organizations already involved in advancing Medical Physics in LMIC. We will identify the range of these organizational activities and their scope to reveal areas of further need. We will point to a few key features of MPWB ( http://www.mpwb.org ) as a volunteering and collaborating structure and how members can get involved and contribute to these efforts at the grass roots level. The goal is that scarce resources can thus be channeled to complement rather than compete with those already in place. Learning Objectives: Understand the strengths and limitations of various organizations that support Medical Physics efforts in LMIC. Learn about ways to volunteer and contribute to Global Health through a grass

Role of the medical physicist in quality control in diagnostic x-ray departments

International Nuclear Information System (INIS)

Cameron, J.R.

1973-01-01

Medical physicists can play a role in education of future radiologists and technologists by teaching quality control needs and techniques. He or she can also provide service to the diagnostic section by establishing a quality control program. Finally, the medical physicist can play an important role in the development of simple and inexpensive techniques for quality control by radiological technologists. The ongoing work at the University of Wisconsin in this area is to provide quality control in measurement of the effective kVcp, the measurement of the effective focal spot size, the performance of the processing equipment, the output in mR/mAs, and the measurement of the half-value-layer and the total filtration. (U.S.)

Black Holes Physicists could soon be creating black holes in the Laboratory

CERN Multimedia

Carr, Bernard

2005-01-01

Ever sinc physicists invented particle accelerators, nearly 80 years ago, they have used them for such exotic tasks as splitting atoms, transmuting elements, producing antimatter and creating particles not previoulsy observed in nature (7 pages)

Technical Training: C++ for Particle Physicists

CERN Multimedia

Monique Duval

2004-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 15 - 19 November. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page: Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Technical Training: C++ for Particle Physicists

CERN Multimedia

Monique Duval

2004-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 15 - 19 November. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page. Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Gustav-Hertz-Prize for CERN Physicist

CERN Multimedia

2004-01-01

Klaus Blaum, of GSI Darmstadt and project leader of the ISOLTRAP experiment at CERN, will receive the 2004 Gustav-Hertz-Prize for his outstanding work on the mass determination of unstable atomic nuclei. Blaum extended the measuring capability of the ISOLTRAP experiment at the ISOLDE facility, which studies short-lived isotopes, by installing a source of carbon clusters. Using these carbon clusters as mass reference allows researchers to obtain higher-precision and absolute atomic mass measurements which are important to understand the weak interaction and the synthesis of chemical elements. The Gustav-Hertz-Prize is awarded to outstanding young physicists and is endowed with 7500 euro. It will be awarded at the Spring Conference of the German Physical Society in Munich on 24 March.

Labor Market Trends for Health Physicists through 2005

International Nuclear Information System (INIS)

1997-10-01

This report reviews past, current, and projected future labor market trends for health physicists through 2005. Information is provided on degrees granted, available supply of new graduates, employment, job openings for new graduates, and salaries. Job openings for new graduates are compared to the available supply of new graduates to assess relative job opportunities in the health physics labor market. The report is divided into three sections: trends during 1983-1993, trends during the mid-1990s, and projected trends for 1997 through 2005

Physicists set new record for network data transfer

CERN Multimedia

2006-01-01

"An internatinal team of physicists, computer scientists, and network engineers led by the California Institute of Technology, CERN and the University of Michigan and partners at the University of Florida and Vanderbilt, as well as participants from Brazil (Rio de Janeiro State University, UERJ, and the State Universities of Sao Paulo, USP and UNESP) and Korea (Kyungpook National University, KISTI) joined forces to set new records for sustained data transfer between storage systems during the SuperComputing 2006 (SC06) Bandwidth Challenge (BWC)." (2 pages)

Quantum field theory I: Basics in mathematics and physics. A bridge between mathematicians and physicists

International Nuclear Information System (INIS)

Zeidler, Eberhard

2009-01-01

This is the first volume of a modern introduction to quantum field theory which addresses both mathematicians and physicists, at levels ranging from advanced undergraduate students to professional scientists. The book bridges the acknowledged gap between the different languages used by mathematicians and physicists. For students of mathematics the author shows that detailed knowledge of the physical background helps to motivate the mathematical subjects and to discover interesting interrelationships between quite different mathematical topics. For students of physics, fairly advanced mathematics is presented, which goes beyond the usual curriculum in physics. (orig.)

Quantum field theory I: Basics in mathematics and physics. A bridge between mathematicians and physicists

Energy Technology Data Exchange (ETDEWEB)

Zeidler, Eberhard [Max-Planck-Institut fuer Mathematik in den Naturwissenschaften, Leipzig (Germany)

2009-07-01

This is the first volume of a modern introduction to quantum field theory which addresses both mathematicians and physicists, at levels ranging from advanced undergraduate students to professional scientists. The book bridges the acknowledged gap between the different languages used by mathematicians and physicists. For students of mathematics the author shows that detailed knowledge of the physical background helps to motivate the mathematical subjects and to discover interesting interrelationships between quite different mathematical topics. For students of physics, fairly advanced mathematics is presented, which goes beyond the usual curriculum in physics. (orig.)

Chemical elements in soils of riverside areas of the Piracicaba river basin, São Paulo, Brazil; Elementos químicos em solos de áreas ribeirinhas da bacia hidrográfica do rio Piracicaba, São Paulo, Brasil

Energy Technology Data Exchange (ETDEWEB)

França, Elvis J.; Lira, Marcelo B.G.; Paiva, José D.S., E-mail: ejfranca@cnen.gov.br, E-mail: liramarcelo@hotmail.com, E-mail: paivajds@gmail.com [Centro Regional de Ciências Nucleares (CRCN-NE/CNEN-PE), Recife, PE (Brazil); Fernandes, Elisabete A. de N.; Fonseca, Felipe Y.; Rodrigues, Vanessa S.; Cavalca, Isabel P.O.; Camilli, Leandro, E-mail: lis@cena.usp.br [Centro de Energia Nuclear na Agricultura (CENA/USP), Piracicaba, SP (Brazil)

2017-07-01

The monitoring of the soil quality of the Piracicaba River Basin, located in the State of São Paulo, is of extreme environmental importance, as it ensures the functionality of the basin ecosystems and environmental protection. However, there are few studies focused on the concentration of chemical elements in soils of environmental protection zones of highly populated riverside regions. In view of the above, this work aims to determine the concentration of chemical elements in the soils located on the banks of the Piracicaba River by the Instrumental Neutronic Activation Analysis - INAA. Soil samples were collected in the 0-5 cm, 5-10 cm and 10-15 cm profiles. Subsequently, the samples were dried in an oven at 80 deg C and comminuted with the aid of mortar and pistil. 250 mg portions were transferred to polyethylene capsules and irradiated in 10{sup 13} cm{sup -2}.s{sup -1} neutron flux for 4 hours at the IEA-R1 Nuclear Research Reactor of the Nuclear and Energy Research Institute -IPEN / SP, Brazil. The determination of the chemical elements was conducted by the k0-INAA method from the Quantu program. Comparing the results obtained with the soil values of an untouched area of Atlantic Forest - Carlos Botelho State Park, the maximum values obtained of As (29 mg / kg) and Zn (185 mg / kg) were about 5 times greater. However, concentrations of terrigenous elements such as Fe and Sc were also high in some cases, indicating that there is also a contribution of the source material (rocks) to the high concentrations observed in the riverside soils.

Uncertain CERN cash means UK physicists face grant freeze.

CERN Document Server

1996-01-01

Britain's funding agency Particle Physics and Astronomy Research Council is uncertain about its ability to cover membership costs to the European Laboratory for Particle Physics (CERN). This has resulted in suspension of research grants to university physicists and astronomers. Funding will be available only for genuine hardship, and for major national and international astronomical projects that have already been sanctioned. The new four-year rolling grants to university-based particle physics group is withheld.

A Physicist's Quest in Biology: Max Delbrück and "Complementarity".

Science.gov (United States)

Strauss, Bernard S

2017-06-01

Max Delbrück was trained as a physicist but made his major contribution in biology and ultimately shared a Nobel Prize in Physiology or Medicine. He was the acknowledged leader of the founders of molecular biology, yet he failed to achieve his key scientific goals. His ultimate scientific aim was to find evidence for physical laws unique to biology: so-called "complementarity." He never did. The specific problem he initially wanted to solve was the nature of biological replication but the discovery of the mechanism of replication was made by others, in large part because of his disdain for the details of biochemistry. His later career was spent investigating the effect of light on the fungus Phycomyces , a topic that turned out to be of limited general interest. He was known both for his informality but also for his legendary displays of devastating criticism. His life and that of some of his closest colleagues was acted out against a background of a world in conflict. This essay describes the man and his career and searches for an explanation of his profound influence. Copyright © 2017 by the Genetics Society of America.

Radiation physics for medical physicists

CERN Document Server

Podgorsak, Ervin B

2006-01-01

This book summarizes the radiation physics knowledge that professionals working in medical physics need to master for efficient and safe dealings with ionizing radiation. It contains eight chapters, each chapter covering a specific group of subjects related to radiation physics and is intended as a textbook for a course in radiation physics in medical-physics graduate programs. However, the book may also be of interest to the large number of professionals, not only medical physicists, who in their daily occupations deal with various aspects of medical physics and find a need to improve their understanding of radiation physics. The main target audience for this book is graduate students studying for M.Sc. and Ph.D. degrees in medical physics, who have to possess the necessary physics and mathematics background knowledge to be able to follow and master the complete textbook. Medical residents, technology students and biomedical engineering students may find certain sections too challenging or esoteric, yet they...

14. Meeting of the North and Northeast physicists. Program and abstracts

International Nuclear Information System (INIS)

1996-01-01

These proceedings contain abstracts of oral and panel presentations carried out during the 14 Meeting of physicists of North and Northeast held in Aracaju, State of Sergipe, Brazil. While covering different areas of physics, they emphasized the condensed matter, statistical physics and nuclear physics in their theoretical and experimental aspects

Friedrich Dessauer's (1881-1963) contributions to the development of radiotherapy in Turkey

International Nuclear Information System (INIS)

Dinc, Gulten

2007-01-01

Famous physicist Friedrich Dessauer carried out innovative studies in the field of radiotherapy in Turkey where he took refuge escaping from the political situation in Germany before the Second World War. The paper deals with Dessauer's works for the establishment of a radiotherapy institute in Turkey and his contributions to this field

Technical Tarining: C++ for Particle Physicists

CERN Multimedia

Monique Duval

2005-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 7-11 March. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://cern.ch/TechnicalTraining/ENSTEC/p2002/Software/cpppp_e.asp Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the ‘C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Technical Training: C++ for Particle Physicists

CERN Multimedia

Monique Duval

2005-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 7-11 March. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://cern.ch/TechnicalTraining/ENSTEC/p2002/Software/cpppp_e.asp Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the ‘C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent. ENSEIGNEMENT TECHNIQUE TECHNICAL TRAINING Monique Duval 74924 technical.training@cern.ch

Moving beyond quality control in diagnostic radiology and the role of the clinically qualified medical physicist.

Science.gov (United States)

Delis, H; Christaki, K; Healy, B; Loreti, G; Poli, G L; Toroi, P; Meghzifene, A

2017-09-01

Quality control (QC), according to ISO definitions, represents the most basic level of quality. It is considered to be the snapshot of the performance or the characteristics of a product or service, in order to verify that it complies with the requirements. Although it is usually believed that "the role of medical physicists in Diagnostic Radiology is QC", this, not only limits the contribution of medical physicists, but is also no longer adequate to meet the needs of Diagnostic Radiology in terms of Quality. In order to assure quality practices more organized activities and efforts are required in the modern era of diagnostic radiology. The complete system of QC is just one element of a comprehensive quality assurance (QA) program that aims at ensuring that the requirements of quality of a product or service will consistently be fulfilled. A comprehensive Quality system, starts even before the procurement of any equipment, as the need analysis and the development of specifications are important components under the QA framework. Further expanding this framework of QA, a comprehensive Quality Management System can provide additional benefits to a Diagnostic Radiology service. Harmonized policies and procedures and elements such as mission statement or job descriptions can provide clarity and consistency in the services provided, enhancing the outcome and representing a solid platform for quality improvement. The International Atomic Energy Agency (IAEA) promotes this comprehensive quality approach in diagnostic imaging and especially supports the field of comprehensive clinical audits as a tool for quality improvement. Copyright © 2017 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.

Niels Bohr. Physicist and philospher of the atomic era

International Nuclear Information System (INIS)

Fischer, Ernst Peter

2012-01-01

The physicist and Nobel-prize carrier Niels Bohr (1885-1962) changed by his research our view to the world. By his atomic model for the first time the stability of matter could be explained, but simultaneously the atomic physics and nuclear technique based on this made our world so dangerous as never before. In an impressive portrait Ernst Peter Fischer describes the life and action of this fascinating man, his great physical finding, as well as his political engagement.

OBITUARY: Sir William Mitchell Physicist and enthusiast for science

CERN Multimedia

Cowley, R

2002-01-01

"William Mitchell was successively head of Physics at Reading and Oxford universities, and Chairman of the Science and Engineering Research Council from 1985 to 1990. He is largely responsible for the excellent neutron and X-ray facilities that are available for research by scientists in the UK. He was one of the first to realise that these uniquely powerful facilities would be essential tools not only for physicists but also for chemists, biologists, materials scientists and engineers" (1 page).

Great Physicists - The Life and Times of Leading Physicists from Galileo to Hawking

Science.gov (United States)

Cropper, William H.

2004-09-01

Here is a lively history of modern physics, as seen through the lives of thirty men and women from the pantheon of physics. William H. Cropper vividly portrays the life and accomplishments of such giants as Galileo and Isaac Newton, Marie Curie and Ernest Rutherford, Albert Einstein and Niels Bohr, right up to contemporary figures such as Richard Feynman, Murray Gell-Mann, and Stephen Hawking. We meet scientists--all geniuses--who could be gregarious, aloof, unpretentious, friendly, dogged, imperious, generous to colleagues or contentious rivals. As Cropper captures their personalities, he also offers vivid portraits of their great moments of discovery, their bitter feuds, their relations with family and friends, their religious beliefs and education. In addition, Cropper has grouped these biographies by discipline--mechanics, thermodynamics, particle physics, and others--each section beginning with a historical overview. Thus in the section on quantum mechanics, readers can see how the work of Max Planck influenced Niels Bohr, and how Bohr in turn influenced Werner Heisenberg. Our understanding of the physical world has increased dramatically in the last four centuries. With Great Physicists , readers can retrace the footsteps of the men and women who led the way.

A half-life the divided life of Bruno Pontecorvo, physicist or spy

CERN Document Server

Close, Frank

2015-01-01

Bruno Pontecorvo dedicated his career to hunting for the Higgs boson of his day: the neutrino, a nearly massless particle considered essential to the process of nuclear fission. His work on the Manhattan project under Enrico Fermi confirmed his reputation as a brilliant physicist and helped usher in the nuclear age. He should have won a Nobel Prize, but late in the summer of 1950 he vanished. At the height of the Cold War, Pontecorvo had disappeared behind the Iron Curtain. In Half-Life, physicist and historian Frank Close offers a heretofore untold history of Pontecorvo’s life, based on unprecedented access to his friends, family, and colleagues. With all the elements of a Cold War thriller—classified atomic research, an infamous double agent, a kidnapping by Soviet operatives—Half-Life is a history of particle physics at perhaps its most powerful: when it created the bomb.

MO-DE-304-01: The Abt Study of Medical Physicist Work Values for Radiation Oncology Physics Services: Round IV

International Nuclear Information System (INIS)

Mills, M.

2015-01-01

The Abt study of medical physicist work values for radiation oncology physics services, Round IV is completed. It supersedes the Abt III study of 2008. The 2015 Abt study measured qualified medical physicist (QMP) work associated with routine radiation oncology procedures as well as some special procedures. As before, a work model was created to allow the medical physicist to defend QMP work based on both routine and special procedures service mix. The work model can be used to develop a cost justification report for setting charges for radiation oncology physics services. The Abt study Round IV was designed to empower the medical physicist to negotiate a service or employment contract with providers based on measured national QMP workforce and staffing data. For a variety of reasons, the diagnostic imaging contingent of AAPM has had a more difficult time trying estimate workforce requirements than their therapy counterparts. Over the past several years, the Diagnostic Work and Workforce Study Subcommittee (DWWSS) has collected survey data from AAPM members, but the data have been very difficult to interpret. The DWWSS has reached out to include more AAPM volunteers to create a more full and accurate representation of actual clinical practice models on the subcommittee. Though much work remains, through hours of discussion and brainstorming, the DWWSS has somewhat of a clear path forward. This talk will provide attendees with an update on the efforts of the subcommittee. Learning Objectives: Understand the new information documented in the Abt studies. Understand how to use the Abt studies to justify medical physicist staffing. Learn relevant historical information on imaging physicist workforce. Understand the process of the DWWSS in 2014. Understand the intended path forward for the DWWSS

MO-DE-304-01: The Abt Study of Medical Physicist Work Values for Radiation Oncology Physics Services: Round IV

Energy Technology Data Exchange (ETDEWEB)

Mills, M. [James Graham Brown Cancer Center (United States)

2015-06-15

The Abt study of medical physicist work values for radiation oncology physics services, Round IV is completed. It supersedes the Abt III study of 2008. The 2015 Abt study measured qualified medical physicist (QMP) work associated with routine radiation oncology procedures as well as some special procedures. As before, a work model was created to allow the medical physicist to defend QMP work based on both routine and special procedures service mix. The work model can be used to develop a cost justification report for setting charges for radiation oncology physics services. The Abt study Round IV was designed to empower the medical physicist to negotiate a service or employment contract with providers based on measured national QMP workforce and staffing data. For a variety of reasons, the diagnostic imaging contingent of AAPM has had a more difficult time trying estimate workforce requirements than their therapy counterparts. Over the past several years, the Diagnostic Work and Workforce Study Subcommittee (DWWSS) has collected survey data from AAPM members, but the data have been very difficult to interpret. The DWWSS has reached out to include more AAPM volunteers to create a more full and accurate representation of actual clinical practice models on the subcommittee. Though much work remains, through hours of discussion and brainstorming, the DWWSS has somewhat of a clear path forward. This talk will provide attendees with an update on the efforts of the subcommittee. Learning Objectives: Understand the new information documented in the Abt studies. Understand how to use the Abt studies to justify medical physicist staffing. Learn relevant historical information on imaging physicist workforce. Understand the process of the DWWSS in 2014. Understand the intended path forward for the DWWSS.

Women physicists in Russia: Problems and solutions at a time of fiscal crisis

Science.gov (United States)

Didenko, Nelli; Ermolaeva, Elena; Kunitsyna, Ekaterina; Kratasyuk, Valentina; Vitman, Renata

2013-03-01

Recently Russia has been affected by the global financial crisis, which has had both positive and negative effects on women physicists. The feminization of science and the stratification that characterize the Russian scientific community in general also affect the field of physics. This paper discusses the proportion of women in leadership and managerial positions in different areas of science and education and highlights the differences between women and men in their careers in physics and defense of their theses. Lomonosov Moscow State University is used to demonstrate the dynamics of gender in different academic positions. The professional activity of young women physicists is illustrated by their participation in all-Russian scientific forums, demonstrating their commitment to remain active in their careers despite the challenges of the current economic conditions.

Probabilistic interpretation of data a physicist's approach

CERN Document Server

Miller, Guthrie

2013-01-01

This book is a physicists approach to interpretation of data using Markov Chain Monte Carlo (MCMC). The concepts are derived from first principles using a style of mathematics that quickly elucidates the basic ideas, sometimes with the aid of examples. Probabilistic data interpretation is a straightforward problem involving conditional probability. A prior probability distribution is essential, and examples are given. In this small book (200 pages) the reader is led from the most basic concepts of mathematical probability all the way to parallel processing algorithms for Markov Chain Monte Carlo. Fortran source code (for eigenvalue analysis of finite discrete Markov Chains, for MCMC, and for nonlinear least squares) is included with the supplementary material for this book (available online).

Clinical Training of Medical Physicists Specializing in Nuclear Medicine (Spanish Edition); Capacitacion clinica de fisicos medicos especialistas en medicina nuclear

Energy Technology Data Exchange (ETDEWEB)

NONE

2013-07-15

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasingly technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for nuclear medicine. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists who are based in a clinical setting. However an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement for Research, Development and Training related to Nuclear Science and Technology (RCA) for the Asia-Pacific region. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in this region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specialising in nuclear medicine was started in 2009 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experience of clinical training in Australia, Croatia and Sweden and was moderated by physicists working in the Asian region. The present publication follows the approach of earlier IAEA publications in the Training Course Series, specifically Nos 37 and 47, Clinical Training of Medical Physicists Specializing in Radiation Oncology and Clinical Training of Medical Physicists

Compendium to radiation physics for medical physicists. 300 problems and solutions

International Nuclear Information System (INIS)

Podgorsak, Ervin B.

2014-01-01

Can be used in combination with other textbooks. Exercise book for graduate and undergraduate students of medical physics and engineering. Well chosen and didactically presented problems. Perfect set for learning in connection with the textbook by Podgorsak and others. Detailed derivation of results with many detailed illustrations. Fully worked-out solutions to exercises/questions. Combines exercises in radiation physics and medical physics. This exercise book contains 300 typical problems and exercises in modern physics and radiation physics with complete solutions, detailed equations and graphs. This textbook is linked directly with the textbook ''Radiation Physics for Medical Physicists'', Springer (2010) but can also be used in combination with other related textbooks. For ease of use, this textbook has exactly the same organizational layout (14 chapters, 128 sections) as the ''Radiation Physics for Medical Physicists'' textbook and each section is covered by at least one problem with solution given. Equations, figures and tables are cross-referenced between the two books. It is the only large compilation of textbook material and associated solved problems in medical physics, radiation physics, and biophysics.

Third-party brachytherapy source calibrations and physicist responsibilities: Report of the AAPM Low Energy Brachytherapy Source Calibration Working Group

International Nuclear Information System (INIS)

Butler, Wayne M.; Bice, William S. Jr.; DeWerd, Larry A.; Hevezi, James M.; Huq, M. Saiful; Ibbott, Geoffrey S.; Palta, Jatinder R.; Rivard, Mark J.; Seuntjens, Jan P.; Thomadsen, Bruce R.

2008-01-01

The AAPM Low Energy Brachytherapy Source Calibration Working Group was formed to investigate and recommend quality control and quality assurance procedures for brachytherapy sources prior to clinical use. Compiling and clarifying recommendations established by previous AAPM Task Groups 40, 56, and 64 were among the working group's charges, which also included the role of third-party handlers to perform loading and assay of sources. This document presents the findings of the working group on the responsibilities of the institutional medical physicist and a clarification of the existing AAPM recommendations in the assay of brachytherapy sources. Responsibility for the performance and attestation of source assays rests with the institutional medical physicist, who must use calibration equipment appropriate for each source type used at the institution. Such equipment and calibration procedures shall ensure secondary traceability to a national standard. For each multi-source implant, 10% of the sources or ten sources, whichever is greater, are to be assayed. Procedures for presterilized source packaging are outlined. The mean source strength of the assayed sources must agree with the manufacturer's stated strength to within 3%, or action must be taken to resolve the difference. Third party assays do not absolve the institutional physicist from the responsibility to perform the institutional measurement and attest to the strength of the implanted sources. The AAPM leaves it to the discretion of the institutional medical physicist whether the manufacturer's or institutional physicist's measured value should be used in performing dosimetry calculations

A Physicist in Business: Opportunities, Pitfalls, and Lifestyle.

Science.gov (United States)

Woollam, John

2007-03-01

A traditional education in physics does not normally include business classes or dealing with opportunities to start a company, yet scientists often now start and run small companies. Physicists are mainly interested in technology. However, other factors quickly dominate chances for business success. These include finance, accounting, cash flow analysis, recruiting, interviewing, personnel issues, marketing, investments, retirement plans, patents and other not always so fun activities. Technical decisions are often strongly influenced by company finances and market-analysis. This talk discusses how to recognize opportunity, how to minimize chances for failure, and lifestyle changes one needs to be aware of before entrepreneurship involvement.

The health physicist abroad

International Nuclear Information System (INIS)

Stewart, N.G.

1980-01-01

As health physics research teams at Harwell found adequate solutions to some of the problems in radiological protection and other spheres of nuclear technology, a mixed research programme consisting of both nuclear and non-nuclear research was undertaken by the health physics research teams since 1968 at Harwell with the aim of retaining radiological research experience. This policy widened the scope and interests of the health physicists and subsequently it was observed that particularly in the field of environment and toxicology, the division between nuclear and non-nuclear research is an artificial one. For example, the techniques developed and skills acquired to study the uptake and metabolism of radioactive aerosols were employed to study inhalation toxicology of lead aerosols from motor vehicles and their deposition on the plant and soil surfaces, influence of particle size on deposition and uptake of lead by man and plants. These techniques and skills were redeployed on new radiological problems as they arose, for example, to study the deposition and resuspension of plutonium from land and water surfaces to provide data appropriate to European conditions. Some such more examples from the work of the Environmental and Medical Sciences Division at Harwell are given. (M.G.B.)

South African Association of Physicists in Medicine and Biology: 26. annual congress

International Nuclear Information System (INIS)

1986-01-01

The twenty-sixth annual congress of the South African Association of Physicists in Medicine and Biology was held from 18-21 March 1986 in Pretoria. Papers delivered on the conference covered subjects like medical physics, radiotherapy, radiation protection, calibration of radiation monitors, radiation detectors, radiation doses and dosimetry

Physicists' views on hadrontherapy: a survey of members of the Italian Association of Medical Physics (AIFM).

Science.gov (United States)

Giandini, Tommaso; Tenconi, Chiara; Carrara, Mauro; Ciocca, Mario; Russo, Stefania; Panaino, Costanza M V; Cattani, Federica; Ciardo, Delia; Morlino, Sara; Avuzzi, Barbara; Bedini, Nice; Villa, Sergio; Marvaso, Giulia; Romanelli, Paola; Hasegawa, Azusa; Vischioni, Barbara; Valvo, Francesca; Jereczek-Fossa, Barbara A; Orecchia, Roberto; Valdagni, Riccardo; Pignoli, Emanuele

2017-09-18

This study was based on a survey to investigate perceptions of hadrontherapy of the members of the Italian Association of Medical Physics (AIFM). The survey was digitally submitted to the 991 members between the end of January and the beginning of April 2016. A 19-item questionnaire was designed focusing on advantages and disadvantages of hadrontherapy, current status and possible future improvements, and need and opportunities for future investments in Italy and abroad. Information about professional qualifications, main fields of clinical involvement and specific competencies of the respondents was also collected. The survey was completed by 121 AIFM members (response rate 12.2%). In the answers collected, it was shown that medical physicists expressed interest in hadrontherapy mainly for reasons of personal interest rather than for professional needs (90% ± 2.5% vs. 52% ± 4.3% of the respondents, respectively), with a good knowledge of the related basic aspects as well as of the pros and cons of its application. However, poor knowledge of the current status of hadrontherapy was observed among the medical physicists not directly involved at a professional level, who were less than 3% of the physicists working in radiotherapy. In light of these results, the implementation of new training and education initiatives should be devised to promote a deeper and global knowledge of hadrontherapy-related issues, not only from a theoretical point of view but also in practical terms. Moreover, a close collaboration between highly specialized medical physicists employed in hadrontherapy centers and others in oncology hospitals should be -encouraged.

A course in mathematical methods for physicists

CERN Document Server

Herman, Russell L

2014-01-01

Based on the author’s junior-level undergraduate course, this introductory textbook is designed for a course in mathematical physics. Focusing on the physics of oscillations and waves, A Course in Mathematical Methods for Physicists helps students understand the mathematical techniques needed for their future studies in physics. It takes a bottom-up approach that emphasizes physical applications of the mathematics. The book offers: •A quick review of mathematical prerequisites, proceeding to applications of differential equations and linear algebra •Classroom-tested explanations of complex and Fourier analysis for trigonometric and special functions •Coverage of vector analysis and curvilinear coordinates for solving higher dimensional problems •Sections on nonlinear dynamics, variational calculus, numerical solutions of differential equations, and Green's functions

Paths to Licensure: Things Physicists Should Know

Science.gov (United States)

Stewart, Gay; Stewart, John

2016-03-01

The path to licensure can be quite complicated, and can thwart a physics department's efforts to produce more and better prepared high school physics teachers. Each state has different pathways to licensure. Acronyms like CAEP and SPA are not within the normal physicist's vocabulary. Some understanding of this topic can allow physics faculty advisers to help our students so that fewer are derailed on their path to the classroom, or take a path that will leave them less well prepared if they do find themselves there. Examples of different approaches that work within state licensure systems from two different states will be presented. Physics teacher preparation efforts in both Arkansas and West Virginia have been supported in part by the Physics Teacher Education Coalition (PhysTEC).

C++ FOR PARTICLE PHYSICISTS By Paul Kunz

CERN Document Server

TECHNICAL TRAINING; Tel. 74460

2001-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on March 5 to 9. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://www.cern.ch/Training/ENSTEC/P9798/Software/cpppp_e.htm Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

C++ FOR PARTICLE PHYSICISTS by Paul Kunz

CERN Document Server

Technical Training; Tel. 74460

2001-01-01

Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on March 5 to 9. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://www.cern.ch/Training/ENSTEC/P9798/Software/cpppp_e.htm Team Visitors should ask their Group Leader to send an e-mail to the DTO of EP Division, M. Burri, referring to the 'C++ for Particle Physicists' course and giving their name, CERN ID number, the Team account number to which the course fee should be charged, and VERY IMPORTANTLY an email address to which an invitation to the course can be sent.

Clinical Training of Medical Physicists Specializing in Diagnostic Radiology (Spanish Edition); Capacitacion clinica de fisicos medicos especialistas en radiodiagnostico

Energy Technology Data Exchange (ETDEWEB)

NONE

2013-01-15

The application of radiation in human health, for both diagnosis and treatment of disease, is an important component of the work of the IAEA. The responsibility for the increasing technical aspects of this work is undertaken by the medical physicist. To ensure good practice in this vital area, structured clinical training programmes are required to complement academic learning. This publication is intended to be a guide to the practical implementation of such a programme for diagnostic radiology. There is a general and growing awareness that radiation medicine is increasingly dependent on well trained medical physicists based in the clinical setting. However, an analysis of the availability of medical physicists indicates a large shortfall of qualified and capable professionals. This is particularly evident in developing countries. While strategies to increase academic educational opportunities are critical to such countries, the need for guidance on structured clinical training was recognized by the members of the Regional Cooperative Agreement (RCA) for Research, Development and Training related to Nuclear Sciences for Asia and the Pacific. Consequently, a technical cooperation regional project (RAS6038) under the RCA programme was formulated to address this need in the Asia-Pacific region by developing suitable material and establishing its viability. Development of a clinical training guide for medical physicists specializing in diagnostic radiology started in 2007 with the appointment of a core drafting committee of regional and international experts. The publication drew on the experiences of clinical training programmes in Australia and New Zealand, the UK and the USA, and was moderated by physicists working in the Asian region. This publication follows the approach of the IAEA publication Training Course Series No. 37, Clinical Training of Medical Physicists specializing in Radiation Oncology. This approach to clinical training has been successfully tested

A physicists guide to The Los Alamos Primer

International Nuclear Information System (INIS)

Reed, B Cameron

2016-01-01

In April 1943, a group of scientists at the newly established Los Alamos Laboratory were given a series of lectures by Robert Serber on what was then known of the physics and engineering issues involved in developing fission bombs. Serber’s lectures were recorded in a 24 page report titled The Los Alamos Primer , which was subsequently declassified and published in book form. This paper describes the background to the Primer and analyzes the physics contained in its 22 sections. The motivation for this paper is to provide a firm foundation of the background and contents of the Primer for physicists interested in the Manhattan Project and nuclear weapons. (invited comment)

Doing physics how physicists take hold of the world

CERN Document Server

Krieger, Martin H

2012-01-01

Doing Physics makes concepts of physics easier to grasp by relating them to everyday knowledge. Addressing some of the models and metaphors that physicists use to explain the physical world, Martin H. Krieger describes the conceptual world of physics by means of analogies to economics, anthropology, theater, carpentry, mechanisms such as clockworks, and machine tool design. The interaction of elementary particles or chemical species, for example, can be related to the theory of kinship-who can marry whom is like what can interact with what. Likewise, the description of physical situations i

'You have to go through the atomic shell'. Conversation with the nuclear physicist and Nobel Prize winner Wolfgang Paul. 'Sie muessen durch die Atomhuelle hindurch'. Gespraech mit dem Kernphysiker und Nobelpreistraeger Wolfgang Paul

Energy Technology Data Exchange (ETDEWEB)

Steiner, P.

1994-01-01

The contribution reflects an interview with the nuclear physicist Prof. Dr. Wolfgang Paul, to whom the Nobel prize has been awarded for the electro-magnetic trap for loaded and unloaded particles named after him. The centre of the discussion is the professional development with regard to main fields of research. (BWI)

Radiation protection in hospitals : the figure of the physicist in hospital

International Nuclear Information System (INIS)

Rodriguez P, M.

2008-12-01

Currently in the country there is not certification to serve as physicist of hospital, only require a degree of physical or related occupation (often engineering), and having gone through a few training of 6 months in hospital. Unlike in the U.S. should have a certification by the American Board of Radiology and the American Board of Medical Physics. It also must cover a postdoctoral residency in hospital at least two years in which it goes through a training that is paid. In the United Kingdom requires a university degree in Physics or career in order, is required to complete a program of four years in total (2 of theoretical and 2 of clinical practice) certified by the Institute of Physics and Engineering in Medicine, during which is also going through a training wage. Medical physicists in Canada are certified by the Canadian College of Physicists in Medicine by written examinations, which must be renewed every 5 years and have experience in the clinical setting. While in Spain, the basic requirement is to have a university degree in physics or related sciences and the certification is awarded by the Ministry of Education and Science which is due to participate in a test at the national level to a hospital residence of 3 years. One of the main aspects that require the clinical training is due to accidents caused by deficiencies in the training of responsible professionals. Examples include the Panama accident with 28 overexposed patients in 2001 and the accident of 1997 in Costa Rica. In the human resources training is needed to focus on written procedures for quality assurance of equipment, verification of processing systems, incorporating changes and improvements in the procedures themselves, keeping the workload at an acceptable level (many of errors are due to the haste with which the work must be done), medical surveillance of patients, dosimetry in vivo, and to generate recommendations to regulatory authorities. (Author)

Academic Training: Cosmology for particle physicists

CERN Multimedia

Françoise Benz

2005-01-01

2004-2005 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 9, 10, 11, 12 & 13 May from 11.00 to 12.00 hrs - Main Auditorium, bldg. 500 on 9, 10, 12 and 13 May, Council Chamber, bldg. 503, on 11 May Cosmology for particle physicists S. CARROLL / Enrico Fermi Institute, Univ. of Chicago, USA The past few years have seen dramatic breakthroughs and spectacular and puzzling discoveries in astrophysics and cosmology. We know much about the universe, but understand very little. Open questions include the nature of the dark matter and dark energy, the origin of the matter/antimatter asymmetry, the possibility of inflation, and the role of string theory and extra dimensions in the early universe. All of these issues impact strongly on, and will be heavily influenced by, upcoming experiments in particle physics. I will give an overview of current questions at the overlap of cosmology and particle physics, and discuss some theoretical and experimental questions likely to be important in the near future. ENSEIG...

Academic Training: Cosmology for particle physicists

CERN Multimedia

Françoise Benz

2005-01-01

2004-2005 ACADEMIC TRAINING PROGRAMMELECTURE SERIES9, 10, 11, 12 & 13 Mayfrom 11.00 to 12.00 hrs - Main Auditorium, bldg. 500 on 9, 10, 12 and 13 May, Council Chamber, bldg. 503, on 11 MayCosmology for particle physicistsS. CARROLL / Enrico Fermi Institute, Univ. of Chicago, USAThe past few years have seen dramatic breakthroughs and spectacular and puzzling discoveries in astrophysics and cosmology. We know much about the universe, but understand very little. Open questions include the nature of the dark matter and dark energy, the origin of the matter/antimatter asymmetry, the possibility of inflation, and the role of string theory and extra dimensions in the early universe. All of these issues impact strongly on, and will be heavily influenced by, upcoming experiments in particle physics. I will give an overview of current questions at the overlap of cosmology and particle physics, and discuss some theoretical and experimental questions likely to be important in the near future.ENSEIGNEMENT ACADEMIQUEAC...

Academic Training: Cosmology for particle physicists

CERN Multimedia

Françoise Benz

2005-01-01

2004-2005 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 9, 10, 11, 12 & 13 May from 11.00 to 12.00 hrs - Main Auditorium, bldg. 500 on 9, 10, 12 and 13 May, Council Chamber, bldg. 503, on 11 May Cosmology for particle physicists S. CARROLL / Enrico Fermi Institute, Univ. of Chicago, USA The past few years have seen dramatic breakthroughs and spectacular and puzzling discoveries in astrophysics and cosmology. We know much about the universe, but understand very little. Open questions include the nature of the dark matter and dark energy, the origin of the matter/antimatter asymmetry, the possibility of inflation, and the role of string theory and extra dimensions in the early universe. All of these issues impact strongly on, and will be heavily influenced by, upcoming experiments in particle physics. I will give an overview of current questions at the overlap of cosmology and particle physics, and discuss some theoretical and experimental questions likely to be important in the near future. ENSEIGNEME...

Tensor calculus for engineers and physicists

CERN Document Server

de Souza Sánchez Filho, Emil

2016-01-01

This textbook provides a rigorous approach to tensor manifolds in several aspects relevant for Engineers and Physicists working in industry or academia. With a thorough, comprehensive, and unified presentation, this book offers insights into several topics of tensor analysis, which covers all aspects of N dimensional spaces. The main purpose of this book is to give a self-contained yet simple, correct and comprehensive mathematical explanation of tensor calculus for undergraduate and graduate students and for professionals. In addition to many worked problems, this book features a selection of examples, solved step by step. Although no emphasis is placed on special and particular problems of Engineering or Physics, the text covers the fundamentals of these fields of science. The book makes a brief introduction into the basic concept of the tensorial formalism so as to allow the reader to make a quick and easy review of the essential topics that enable having the grounds for the subsequent themes, without need...

Technical Training: C++ for Particle Physicists

CERN Multimedia

2004-01-01

If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 8 - 12 March. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page : http://cern.ch/TechnicalTraining/ENSTEC/p2002/Software/cpppp_e.asp Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the ‘C++ for Particle Physicists' ...

Technical Training: C++ for Particle Physicists

CERN Multimedia

2004-01-01

If you wish to participate in one of the following courses, please discuss with your supervisor and apply electronically directly from the course description pages that can be found on the Web at: http://www.cern.ch/Training/ or fill in an "application for training" form available from your Divisional Secretariat or from your DTO (Divisional Training Officer). Applications will be accepted in the order of their receipt. TECHNICAL TRAINING Monique Duval tel. 74924 technical.training@cern.ch Please note that Paul Kunz will be giving his very popular and highly recommended C++ course again on 8 - 12 March. The course costs 200 CHF, and advance registration is required. People with CERN EDH accounts can apply electronically directly from the Web course description page: http://cern.ch/TechnicalTraining/ENSTEC/p2002/Software/cpppp_e.asp Team Visitors should ask their Group Leader to send an e-mail to the DTO of PH Department, M. Burri, referring to the ‘C++ for Particle Physicists' c...

Preliminary geologic map of the Fontana 7.5' quadrangle, Riverside and San Bernardino Counties, California

Science.gov (United States)

Morton, Douglas M.; Digital preparation by Bovard, Kelly R.

2003-01-01

Open-File Report 03-418 is a digital geologic data set that maps and describes the geology of the Fontana 7.5’ quadrangle, Riverside and San Bernardino Counties, California. The Fontana quadrangle database is one of several 7.5’ quadrangle databases that are being produced by the Southern California Areal Mapping Project (SCAMP). These maps and databases are, in turn, part of the nation-wide digital geologic map coverage being developed by the National Cooperative Geologic Map Program of the U.S. Geological Survey (USGS). General Open-File Report 03-418 contains a digital geologic map database of the Fontana 7.5’ quadrangle, Riverside and San Bernardino Counties, California that includes: 1. ARC/INFO (Environmental Systems Research Institute, http://www.esri.com) version 7.2.1 coverages of the various elements of the geologic map. 2. A Postscript file (fon_map.ps) to plot the geologic map on a topographic base, and containing a Correlation of Map Units diagram (CMU), a Description of Map Units (DMU), and an index map. 3. An Encapsulated PostScript (EPS) file (fon_grey.eps) created in Adobe Illustrator 10.0 to plot the geologic map on a grey topographic base, and containing a Correlation of Map Units (CMU), a Description of Map Units (DMU), and an index map. 4. Portable Document Format (.pdf) files of: a. the Readme file; includes in Appendix I, data contained in fon_met.txt b. The same graphics as plotted in 2 and 3 above.Test plots have not produced precise 1:24,000-scale map sheets. Adobe Acrobat page size setting influences map scale. The Correlation of Map Units and Description of Map Units is in the editorial format of USGS Geologic Investigations Series (I-series) maps but has not been edited to comply with I-map standards. Within the geologic map data package, map units are identified by standard geologic map criteria such as formation-name, age, and lithology. Where known, grain size is indicated on the map by a subscripted letter or letters following

Physicists to mark 20th anniversary of first string theory revolution

CERN Document Server

2004-01-01

"Growing numbers of physicists see superstring theory as their best chance to formulate a set of natural laws that govern everything from the largest galaxies to the smallest quarks in one grand unifying theory of everything. The two men who started the revolution, Michael Green, now of the University of Cambridge, and John Schwarz of the California Institute of Technology, also will speak at the symposium" (1.5 pages)

Review of online educational resources for medical physicists.

Science.gov (United States)

Prisciandaro, Joann I

2013-11-04

Medical physicists are often involved in the didactic training of graduate students, residents (both physics and physicians), and technologists. As part of continuing medical education, we are also involved in maintenance of certification projects to assist in the education of our peers. As such, it is imperative that we remain current concerning available educational resources. Medical physics journals offer book reviews, allowing us an opportunity to learn about newly published books in the field. A similar means of communication is not currently available for online educational resources. This information is conveyed through informal means. This review presents a summary of online resources available to the medical physics community that may be useful for educational purposes.

High energy physicists and graduate students. 1985 Census

International Nuclear Information System (INIS)

1985-10-01

An alphabetical listing is given of high energy physicists and graduate students, providing the person's name, rank, and institution. Another listing gives the faculty (or permanent staff) and graduate students for each institution, listing for each person the date of birth, year and institution of highest degree, the rank and institutional affiliation with starting dates, up to three items selected from a list of research specialties, and their sources of federal support. For the graduate students, there is also indicated an estimated date for their degree. Where appropriate, a person may be listed at more than one institution. Except as noted, the information is intended to indicate the situation as of January 1, 1985

Snowmass 2013 Young Physicists Science and Career Survey Report

Energy Technology Data Exchange (ETDEWEB)

Anderson, J. [Fermilab; Asaadi, J. [Syracuse U.; Carls, B. [Fermilab; Cotta, R. [UC, Irvine; Guenette, R. [Yale U.; Kiburg, B. [Fermilab; Kobach, A. [Northwestern U.; Lippincott, H. [Fermilab; Littlejohn, B. [Cincinnati U.; Love, J. [Argonne; Penning, B. [Fermilab; Santos, M. Soares [Fermilab; Strauss, T. [thomas.strauss@lhep.unibe.ch; Szelc, A. [Yale U.; Worcester, E. [Brookhaven; Yu, F. [Fermilab

2013-07-30

From April to July 2013 the Snowmass Young Physicists (SYP) administered an online survey collecting the opinions and concerns of the High Energy Physics (HEP) community. The aim of this survey is to provide input into the long term planning meeting known as the Community Summer Study (CSS), or Snowmass on the Mississippi. In total, 1112 respondents took part in the survey including 74 people who had received their training within HEP and have since left for non-academic jobs. This paper presents a summary of the survey results including demographic, career outlook, planned experiments and non-academic career path information collected.

Limited Resources, Limited Opportunities, and the Accumulation of Disadvantage: Evidence from the Global Survey of Physicists

Science.gov (United States)

Ivie, Rachel

2012-03-01

Using the results of the Global Survey of Physicists, which we conducted in collaboration with the International Union of Pure and Applied Physics Working Group on Women, we document the effect of limited resources and opportunities on women physicists' careers. We find that women respondents are less likely than men to report access to a variety of resources and opportunities that would be helpful in advancing a scientific career. These include access to funding, travel money, lab and office space, equipment, clerical support, and availability of employees or students to help with research. When asked about specific opportunities, women report fewer invited talks and overseas research opportunities. Women who responded are less likely to have been journal editors, acted as bosses or managers, advised graduate students, served on thesis or dissertation committees, and served on committees for grant agencies. We also show the disproportionate effects of children on women physicists' careers. Women who responded are more likely than men to have changed their work situations upon becoming parents. Mothers are more likely than men and women without children to report that their careers have progressed more slowly than colleagues who finished their degrees at the same time. Furthermore, women are more likely than men to report that their careers affected the decisions they made about marriage and children. The results of this survey draw attention to the need to focus on factors other than representation when discussing the situation of women in physics. 15,000 physicists in 130 countries answered this survey, and across all these countries, women have fewer resources and opportunities and are more affected by cultural expectations concerning child care. Cultural expectations about home and family are difficult to change. However, for women to have successful outcomes and advance in physics, they must have equal access to resources and opportunities.

SU-F-E-16: A Specific Training Package for Medical Physicists in Support to Nuclear and Radiological Emergency Situations

International Nuclear Information System (INIS)

Meghzifene, A; Berris, T

2016-01-01

Purpose: To provide the professional medical physicists with adequate competencies and skills in order to help them get prepared to support Nuclear or Radiological Emergency (NRE) situations. Methods: Although clinical medical physicists working have in-depth knowledge in radiation dosimetry, including dose reconstruction and dose measurements, they are usually not involved in NRE situations. However, in a few instances where medical physicists were involved in NREs, it appeared that many lacked specific knowledge and skills that are required in such situations. This lack of specific knowledge and skills is probably due to the fact that most current medical physics curricula do not include a specific module on this topic. As a response to this finding, the IAEA decided to initiate a project to develop a specific training package to help prepare medical physicists to support NRE situations. The training package was developed with the kind support of the Government of Japan and in collaboration with Fukushima Medical University (FMU) and the National Institute of Radiological Sciences (NIRS). Results: The first International Workshop to test the training package was held in Fukushima, Japan in June 2015. It consisted of lectures, demonstrations, simulation, role play, and practical sessions followed by discussions. The training was delivered through 14 modules which were prepared with the support of 12 lecturers. A knowledge assessment test was done before the workshop, followed by the same test done at the end of the Workshop, to assess the knowledge acquired during the training. Conclusion: The Workshop was successfully implemented. The overall rating of the workshop by the participants was excellent and all participants reported that they acquired a good understanding of the main issues that are relevant to medical physics support in case of NRE situations. They are expected to disseminate the knowledge to other medical physicists in their countries.

SU-F-E-16: A Specific Training Package for Medical Physicists in Support to Nuclear and Radiological Emergency Situations

Energy Technology Data Exchange (ETDEWEB)

Meghzifene, A; Berris, T [International Atomic Energy Agency, Vienna, Vienna (Austria)

2016-06-15

Purpose: To provide the professional medical physicists with adequate competencies and skills in order to help them get prepared to support Nuclear or Radiological Emergency (NRE) situations. Methods: Although clinical medical physicists working have in-depth knowledge in radiation dosimetry, including dose reconstruction and dose measurements, they are usually not involved in NRE situations. However, in a few instances where medical physicists were involved in NREs, it appeared that many lacked specific knowledge and skills that are required in such situations. This lack of specific knowledge and skills is probably due to the fact that most current medical physics curricula do not include a specific module on this topic. As a response to this finding, the IAEA decided to initiate a project to develop a specific training package to help prepare medical physicists to support NRE situations. The training package was developed with the kind support of the Government of Japan and in collaboration with Fukushima Medical University (FMU) and the National Institute of Radiological Sciences (NIRS). Results: The first International Workshop to test the training package was held in Fukushima, Japan in June 2015. It consisted of lectures, demonstrations, simulation, role play, and practical sessions followed by discussions. The training was delivered through 14 modules which were prepared with the support of 12 lecturers. A knowledge assessment test was done before the workshop, followed by the same test done at the end of the Workshop, to assess the knowledge acquired during the training. Conclusion: The Workshop was successfully implemented. The overall rating of the workshop by the participants was excellent and all participants reported that they acquired a good understanding of the main issues that are relevant to medical physics support in case of NRE situations. They are expected to disseminate the knowledge to other medical physicists in their countries.

The radioactivity, the sun, the Earth and Kelvin's death. A difficult dialog between physicists and geologists

International Nuclear Information System (INIS)

Richet, P.

1996-01-01

The question of the age of the Earth has remained mythical for a long time. During the last quarter of the 19. century, this question was the center of a strong controversy initiated by a physicist, William Thomson, the future Lord Kelvin. During the beginning of the 20. century, the discoveries of Becquerel and Pierre and Marie Curie about radioactivity gave rise to a new generation of physicists who were able to propose radiometric estimations of the Earth's age to geologists. This digest paper describes the historical aspects of the discovery of radioactivity and of the first attempts for dating the Earth using radiometric techniques, and the strong discussions within the geologists community. (J.S.)

South African Association of Physicists in Medicine and Biology: 25. Anniversary Congress, 18-22 Mar 1985, Cape Town

International Nuclear Information System (INIS)

1985-01-01

The twenty-fifth anniversary congress of the South African Association of Physicists in Medicine and Biology was held from 18-22 March 1985 in Cape Town. The tremendous growth of nuclear energy and radiation technology in South Africa led to an increasing need for biophysicists, especially health physicists, for the application of radioisotopes and radiation as well as nuclear power, including the uranium industry. Papers delivered on the conference covered subjects like medical physics, radiotherapy, radiopharmaceuticals, radiation protection, the calibration of radiation monitors, radiation detectors, radiation doses and dosimetry

Leadership for Sustainable Development From the Perspective of a Woman Physicist

Science.gov (United States)

Williams, Elvira S.

2005-10-01

What skills make a great leader? What policies lead to great programs? Answers to these challenging questions must be formulated and implemented by leaders who are successful regardless of the type organization interested in sustainable development. Leadership from both a career and an organizational viewpoint will be discussed from the perspective of a woman physicist. Implications of laws of classical and modern physics will be used in this discussion as tools for tailoring tactics for coarse- and fine-tuned guidance systems for successful leadership aimed at sustainable development. Specifically, implications of Newton's first, second and third laws of motion and the law of universal gravitation from classical physics are applied to leadership. The results are interpreted against the more refined findings of both quantum and chaos physics theories that indicate our inability to precisely predict outcomes of any event. Also, the refined theories support the notion that everything in the universe interacts with everything else in the universe at some level, so that nothing is completely isolated from anything else. Therefore, skill sets and program policies based on an interacting, all-inclusive, or holistic approaches are the ones that are most likely to generate great leaders and great programs, since these are the ones less likely to omit significant factors that could contribute to creation of great leaders.

Salary Information for Nuclear Engineers and Health Physicists, October 1995; FINAL

International Nuclear Information System (INIS)

Oak Ridge Institute for Science and Education

1995-01-01

Salary information was collected for October 1995 for personnel working as nuclear engineers and health physicists. The salary information includes personnel at the B.S., M.S., and Ph.D. levels with zero, one, and three years of professional work experience. Information is provided for utilities and non-utilities. Non-utilities include private sector organizations and U.S. Department of Energy contractor-operated facilities. Government agencies, the military, academic organizations, and medical facilities are excluded

Role and responsibilities of medical physicists in radiological protection of patients

International Nuclear Information System (INIS)

Niroomand-Rad, A.

2001-01-01

The paper provides a brief history of the International Organization for Medical Physics (IOMP), followed by some general comments on the radiological protection of patients. The importance of establishing scientific guidelines and professional standards is emphasized, as is the need to ensure the protection of patients undergoing radiation therapy. The responsibility of qualified medical physicists in the protection of patients in nuclear medicine and in diagnostic and interventional radiology is also discussed. (author)

Extra-high doses detected in the enamel of human teeth in the Techa riverside region

Energy Technology Data Exchange (ETDEWEB)

Shishkina, E.A., E-mail: ElenaA.Shishkina@gmail.com [Urals Research Center for Radiation Medicine, 68A, Vorovsky Str., 454076 Chelyabinsk (Russian Federation); Degteva, M.O.; Tolstykh, E.I.; Volchkova, A. [Urals Research Center for Radiation Medicine, 68A, Vorovsky Str., 454076 Chelyabinsk (Russian Federation); Ivanov, D.V. [Institute of Metal Physics, Russian Academy of Sciences, 18 S. Kovalevsky Str, 620041 Yekaterinburg (Russian Federation); Wieser, A. [Helmholtz Zentrum Muenchen, German Research Centre for Environmental Health, D-85764 Neuherberg (Germany); Della Monaca, S. [Istituto Superiore di Sanita, 00161 Rome (Italy); Istituto Regina Elena, 00144 Rome (Italy); Fattibene, P. [Istituto Superiore di Sanita, 00161 Rome (Italy); Istituto Nazionale di Fisica Nucleare, 00161 Rome (Italy)

2011-09-15

During the long-term study of tooth enamel by EPR dosimetry for population exposed to radiation due to contamination of the Techa River, it was found out that for some of the tooth donors the dose accumulated in tooth enamel could be as high as several tens of Gy. Such doses were absorbed only in tooth enamel and they should not be associated with exposures to other organs or the whole body. The nature of such doses was discussed in a number of previous papers where it was shown that the source of such doses is {sup 90}Sr incorporated in the calcified dental tissues. However, among specialists in radiation dosimetry who were not involved in the biokinetic studies, the nature and dosimetric significance of extra-high doses in tooth enamel are still raising questions. The aim of the current paper is to summarize the accumulated information on extra-high doses in the teeth of the Techa riverside residents, describe the dose levels observed, explain the nature of extra-high doses in the enamel and discuss their informative value. The paper includes an overview of already published findings and an analysis of information collected in the data bank of the Urals Research Center for Radiation Medicine (URCRM), Chelyabinsk, Russia, which has not been published before.

A New Approach for Education and Training of Medical Physicists in Cuba: From University to Clinical Training

International Nuclear Information System (INIS)

Alfonso-Laguardia, R.; Rivero Blanco, J.M.

2016-01-01

Full text: According to the international recommendations of IAEA and the International Organization for Medical Physics (IOMP), the education and training of clinically qualified medical physicists (CQMP) should include three main academic and professional elements: a university level education, a postgraduate education specific in medical physics (MP) and a supervised clinical training. In Cuba, most of the medical physicists working in radiation oncology (RO) or nuclear medicine (NM) services have graduated from nuclear related programmes of the High Institute on Applied Technologies and Sciences (InSTEC), who further perform a postgraduate study in medical physics (MP), at the level of a so-called Diploma course or a Master in Sciences. Nevertheless, the third level of education, namely the supervised clinical training has not yet been established, due to the lack of official recognition of the profession of MP by the health authorities. A new approach for comprehensive training of CQMP is presented, where, by maintaining the three elements of education, the process is optimized so that a medical physicist is prepared with the highest level of theoretical and clinical training, in agreement with the current demand of the advanced technologies put in service in Cuban hospitals. (author

Physicists get first glimpse of antimatter: Stuff of science fiction: Canadian among group making breakthrough

CERN Multimedia

Munro, M

2002-01-01

"A team of Canadian, U.S. and European physicists, working at the CERN physics facility in Geneva, is reporting in Physical Review Letters this week that it has created and probed atoms of antihydrogen" (1 page).

Nuclear accident at Three Mile Island: its effect on a local community

International Nuclear Information System (INIS)

Behler, G.T. Jr.

1987-01-01

This dissertation consists of a longitudinal case study of the extent to which the structure of community power in Riverside, (a pseudonym) Pennsylvania (the largest community located within five miles of the Three Mile Island nuclear facility) changed as a result of the March, 1979 accident. The investigation centers around testing a basic working hypothesis. Simply stated, this working hypothesis argues that Riverside's power structure has become more pluralistic in response to the Three Mile Island nuclear accident. An additional corollary to this working hypothesis is also tested. This corollary asserts that many of Riverside's community power actors have become much more cosmopolitan in their political-action tactics and problem-solving orientations as a results of the TMI crisis. The aforementioned working hypothesis and associated corollary are tested via the combined utilization of three different techniques for measuring the distribution of social power. The findings of the study clearly demonstrate the existence of increased pluralism, politicization, and cosmopolitanism within Riverside since March of 1979. Furthermore, these research results, and the entire dissertation itself, contribute to a number of subfields within the discipline of sociology. In particular,contributions are noted for the subfields of community power, social movements, and disaster research

Beller Lecture: Dialogue Across Divides - Physicists and the Iran Dossier

Science.gov (United States)

Neuneck, Götz

For over a decade, the nuclear activities of the Islamic Republic of Iran have been at the center of international concerns and subsequent track II talks. NGOs, think tanks and analysts played a role to help to find technical solutions in a highly political setting. The talk will give an overview about the role of physicists to understand the Iranian sensitive nuclear fuel-cycle and to prepare the ground for the JCPOA. Furthermore, the experience of the work of the Pugwash Conferences on Science and World Affairs will be elaborated.

Lasers take physicists back to school

CERN Multimedia

Katarina Anthony

2012-01-01

This week saw the First International School on Laser Applications at Accelerators held in GANIL (France). Organised by the LA3NET project – of which CERN is a partner – the school was a singular opportunity for accelerator and laser physicists to meet and discuss the future of the merging areas.   As an EU-funded training network, LA3NET has brought together 27 partner institutes to train early stage researchers in the field of laser applications. Though the network kickedoff only a few months ago, it has already filled 15 of its 17 fellow positions, including three in CERN’s BE and EN Departments. The five-day International School on Laser Applications at Accelerators was the first big event organised by LA3NET, and united participants from both inside and outside the project. “This was the first time a school had linked laser and accelerator physics at such a fundamental level,” says Carsten P. Welsch, a former CERN fellow who now coordinates t...

Proceedings of the School for Young High Energy Physicists

International Nuclear Information System (INIS)

Barlow, R.J.

1992-01-01

The 1991 School for Young High Energy Physicists was attended by 44 first year graduate students - probably the largest number since it was started in 1972. It took place in September, at the Cosener's House, Abingdon, and was organised and funded by Rutherford Appleton Laboratory. Published here are the lectures that were given in the mornings. These were supplemented and reinforced by the work in the afternoons, which were devoted to problems and tutorials. At the end of the intensive two week course the students emerged exhausted, but with a thorough grounding in the Standard Model of Elementary Particle Physics, on which most of them are performing their experimental work. (Author)

International young physicists' tournament problems & solutions 2014

CERN Document Server

Gao, Wenli

2016-01-01

International Young Physicists' Tournament (Iypt), is one of the most prestigious international physics contests among high school students. This book is based on the solutions of 2014 Iypt problems. The authors are undergraduate students who participated in the Cupt (Chinese Undergraduate Physics Tournament). It is intended as a college level solution to the challenging open-ended problems. It provides original, quantitative solutions in fulfilling seemingly impossible tasks. This book is not limited to the tasks required by the problems and it is not confined to the models and methods in present literatures. Many of the articles include modification and extension to existing models in references, or derivation and computation based on fundamental physics. This book provides quantitative solutions to practical problems in everyday life. This is a good reference book for undergraduates, advanced high-school students, physics educators and curious public interested in the intriguing phenomena in daily life.

Academic Training: Practical Statistics for Particle Physicists

CERN Multimedia

2006-01-01

2006-2007 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 9, 10, 11, 12, 13 October from 11:00 to 12:00 - Main Auditorium, bldg. 500, TH Auditorium, bldg 4, 3rd floor, on 13 October Practical Statistics for Particle Physicists L. LYONS, University of Oxford, GB Lecture 1: Learning to love the errror matrix Introductory remarks. Conditional probability. Statistical and systematic errors. Combining results Binomial, Poisson and 1-D Gaussian 2-D Gaussian and the error matrix. Understanding the covariance. Using the error matrix. Estimating the error matrix. Combining correlated measurements Lecture 2: Parameter determination by likelihood: Do's and don'ts Introduction to likelihood. Error estimate. Simple examples: (1) Breit Wigner (2) Lifetime binned and unbinned likelihood several parameters extended maximum likelihood. Common misapprehensions: Normalisation delta(lnL) = 1/2 rule and coverage Integrating the likelihood Unbinned L_max as goodness of fit Punzi effect Lecture 3: Chi-squared and hypothesis test...

WE-G-204-00: Post-Graduate Training of the Next Generation of Academic Medical Physicists

International Nuclear Information System (INIS)

2016-01-01

While many indicators for academic medical physics are distressing – jobs are tight, demands on clinical time are high (and getting worse) and national funding has been flat for several years (meaning less money in reality) the present is perhaps one of the most exciting times in cancer research history, and medical physicists have an opportunity to make a difference. Many of us predict the impact of medical physics on cancer research over the next decade to be more significant than ever. Why is that? First, medical imaging is used for every cancer patient in developed countries. Every improvement in the acquisition, processing or analysis of radiological images has the potential to impact patients. The use of radiation therapy is at an all-time high – and virtually cannot be performed without medical physics. Many of the advances in both biomedical imaging and radiation oncology are the result of the hard work of academic medical physicists who are thinking of the next generation of technologies that will be used against cancer or an even broader spectrum of diseases. A career in academic medical physics is demanding, particularly for those with clinical responsibilities. As the demands for justification of their clinical effort become increasingly metricized, the ability to do “unfunded research” will become even more difficult. This means that many will have to generate external salary support to justify their efforts in research and development. This comes at a time when funding for research is compressed and harder to obtain. Generally speaking, if you are not contributing 50% or more of your effort to research, you are competing at a disadvantage and it is very unlikely you will get an NIH/NCI/NIBIB grant. Furthermore, in the ongoing effort to improve patient care and safety, we have developed credentialing pathways that now require at least two-years of residency training. This full-time clinical training creates a gap in the research trajectory of

WE-G-204-00: Post-Graduate Training of the Next Generation of Academic Medical Physicists

Energy Technology Data Exchange (ETDEWEB)

NONE

2016-06-15

While many indicators for academic medical physics are distressing – jobs are tight, demands on clinical time are high (and getting worse) and national funding has been flat for several years (meaning less money in reality) the present is perhaps one of the most exciting times in cancer research history, and medical physicists have an opportunity to make a difference. Many of us predict the impact of medical physics on cancer research over the next decade to be more significant than ever. Why is that? First, medical imaging is used for every cancer patient in developed countries. Every improvement in the acquisition, processing or analysis of radiological images has the potential to impact patients. The use of radiation therapy is at an all-time high – and virtually cannot be performed without medical physics. Many of the advances in both biomedical imaging and radiation oncology are the result of the hard work of academic medical physicists who are thinking of the next generation of technologies that will be used against cancer or an even broader spectrum of diseases. A career in academic medical physics is demanding, particularly for those with clinical responsibilities. As the demands for justification of their clinical effort become increasingly metricized, the ability to do “unfunded research” will become even more difficult. This means that many will have to generate external salary support to justify their efforts in research and development. This comes at a time when funding for research is compressed and harder to obtain. Generally speaking, if you are not contributing 50% or more of your effort to research, you are competing at a disadvantage and it is very unlikely you will get an NIH/NCI/NIBIB grant. Furthermore, in the ongoing effort to improve patient care and safety, we have developed credentialing pathways that now require at least two-years of residency training. This full-time clinical training creates a gap in the research trajectory of

Converting Radiology Operations in a Six-Hospital Healthcare System from Film-Based to Digital: Another Leadership Role for the Diagnostic Medical Physicist

International Nuclear Information System (INIS)

Arreola, Manuel M.; Rill, Lynn N.

2004-01-01

As medical facilities across the United States continue to convert their radiology operations from film-based to digital environments, partially accomplished and failed endeavors are frequent because of the lack of competent and knowledgeable leadership. The diagnostic medical physicist is, without a doubt, in a privileged position to take such a leadership role, not only because of her/his understanding of the basics principles of new imaging modalities, but also because of her/his inherent participation in workflow design and educational/training activities. A well-structured approach by the physicist will certainly lead the project to a successful completion, opening, in turn, new opportunities for the medical physicist to become an active participant in the decision-making process for an institution

Converting Radiology Operations in a Six-Hospital Healthcare System from Film-Based to Digital: Another Leadership Role for the Diagnostic Medical Physicist

Science.gov (United States)

Arreola, Manuel M.; Rill, Lynn N.

2004-09-01

As medical facilities across the United States continue to convert their radiology operations from film-based to digital environments, partially accomplished and failed endeavors are frequent because of the lack of competent and knowledgeable leadership. The diagnostic medical physicist is, without a doubt, in a privileged position to take such a leadership role, not only because of her/his understanding of the basics principles of new imaging modalities, but also because of her/his inherent participation in workflow design and educational/training activities. A well-structured approach by the physicist will certainly lead the project to a successful completion, opening, in turn, new opportunities for the medical physicist to become an active participant in the decision-making process for an institution.

The contributions of Faraday and Maxwell to electrical science

CERN Document Server

Tricker, R A R

1966-01-01

The Contributions of Faraday and Maxwell to Electrical Science deals with the development of electromagnetic theory following the establishment of the basis for the first law of circulation relating to the magnetic fields generated by steady currents. This book is organized into two parts encompassing nine chapters that specifically treat the provision of the basis for the second law of circulation, the law that deals with the induction of currents, which was predominantly the work of British physicists, Michael Faraday and James Clerk Maxwell. Part I highlights their life, career, and contri

Scientific productivity and academic promotion: a study on French and Italian physicists

OpenAIRE

Francesco Lissoni; Jacques Mairesse; Fabio Montobbio; Michele Pezzoni

2011-01-01

The article examines the determinants of scientific productivity (number of articles and journals' impact factor) for a panel of about 3600 French and Italian academic physicists active in 2004--2005. Endogeneity problems concerning promotion and productivity are addressed by specifying a generalized Tobit model, in which a selection probit equation accounts for the individual scientist's probability of promotion to her present rank, and a productivity regression estimates the effects of age,...

CERN Library | Edoardo Amaldi presents "The adventurous life of Friedrich Georg Houtermans, physicist (1903-1966)" | 11 November

CERN Multimedia

2014-01-01

The physicist Friedrich Houtermans (1903-1966) was an important promoter and proponent of the development of physics in Berne. He introduced a number of activities in the field of elementary particles, with a special focus on the physics of cosmic rays, and made important contributions in applied physics.   This biography of Houtermans was written by Edoardo Amaldi and was almost finished just before his unexpected death in 1989. The editors have only corrected typographical errors and introduced minimal text changes in order to preserve the original content. Additionally they have collected and included previously unpublished pictures and memories from Houtermans’ students and collaborators.  The text is the result of a thorough and intensive study of Houtermans’ life and character carried out by Edoardo Amaldi. It is more than a biography, since the figure of Houtermans is set in a historical period in Europe between the two world wars. This book will be of great i...

TH-A-16A-01: Image Quality for the Radiation Oncology Physicist: Review of the Fundamentals and Implementation

International Nuclear Information System (INIS)

Seibert, J; Imbergamo, P

2014-01-01

The expansion and integration of diagnostic imaging technologies such as On Board Imaging (OBI) and Cone Beam Computed Tomography (CBCT) into radiation oncology has required radiation oncology physicists to be responsible for and become familiar with assessing image quality. Unfortunately many radiation oncology physicists have had little or no training or experience in measuring and assessing image quality. Many physicists have turned to automated QA analysis software without having a fundamental understanding of image quality measures. This session will review the basic image quality measures of imaging technologies used in the radiation oncology clinic, such as low contrast resolution, high contrast resolution, uniformity, noise, and contrast scale, and how to measure and assess them in a meaningful way. Additionally a discussion of the implementation of an image quality assurance program in compliance with Task Group recommendations will be presented along with the advantages and disadvantages of automated analysis methods. Learning Objectives: Review and understanding of the fundamentals of image quality. Review and understanding of the basic image quality measures of imaging modalities used in the radiation oncology clinic. Understand how to implement an image quality assurance program and to assess basic image quality measures in a meaningful way

Report on student participants at the 2003 Annual Meeting of the National Society of Black Physicists

Energy Technology Data Exchange (ETDEWEB)

Julius Dollison, Michael Neuchatz

2003-07-01

The first meeting of African American physicists was held in 1973 at Fisk University in Nashville, Tennessee, with around 50 Black physicists in attendance. In 1977, this organization was formally established as the National Society of Black Physicists (NSBP) out of a need to address many concerns of African American physicists. During the ensuing years the Conference began to grow and was hosted by different institutions at various geographic locations. This year, the 2003 Annual Conference of the National Society of Black Physicists and Black Physics Students was hosted by Spelman College in Atlanta, Georgia during the weekend of February 12th-15th, 2003. This Conference brought together over 500 African American physics students and working physicists. Also attending were corporate and graduate school recruiters, administrators, professional society representatives and others concerned with the small representation of minorities in the field of physics. The organizers of the Conference contracted with the Statistical Research Center of the American Institute of Physics to conduct a formal evaluative study of the meeting, resulting in this report. The evaluation questionnaire was designed by the organizers of the NSBP conference with input from the Statistical Research Center's staff. It included questions on the students' backgrounds and demographic characteristics, physics research experience, career goals, challenges faced in their academic pursuits, and ratings of various aspects of the conference. The questionnaire was distributed at the conference when the students signed in. Of the 330 students who were registered, roughly 304 attended and were given the four-page questionnaire to complete. Responses were collected on the last night of the conference, with 172 (approximately 57%) returning completed questionnaires. This low response rate could be attributed in part to the fact that respondents were asked to provide possibly sensitive personal

Bird of passage recollections of a physicist

CERN Document Server

1985-01-01

Here is the intensely personal and often humorous autobiography of one of the most distinguished theoretical physicists of his generation, Sir Rudolf Peierls. Born in Germany in 1907, Peierls was indeed a bird of passage," whose career of fifty-five years took him to leading centers of physics--including Munich, Leipzig, Zurich, Copenhagen, Cambridge, Manchester, Oxford, and J. Robert Oppenheimer''s Los Alamos. Peierls was a major participant in the revolutionary development of quantum mechanics in the 1920s and 1930s, working with some of the pioneers and, as he puts it, "some of the great characters" in this field. Originally published in 1988. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of- print books from the distinguished backlist of Princeton University Press. These paperback editions preserve the original texts of these important books while presenting them in durable paperback editions. The goal of the Princeton Legacy Libr...

Proceedings of the School for Young High Energy Physicists

International Nuclear Information System (INIS)

Sedgbeer, J.; Evans, M.E.

2003-01-01

Forty-seven experimental particle physicists attended the 2002 Summer School, held, as usual, at The Cosener's House in Abingdon during September. The weather was glorious allowing a number of tutorials and impromptu seminars to take place in the lovely gardens. The lectures were of a high standard and were delivered and received enthusiastically, providing material for lively discussions in tutorials and elsewhere. The students each gave a ten-minute seminar and the general quality of the talks was impressive and the time keeping excellent. The activities described ranged from front-line physics analysis to preparations for the next generation of machines and detectors, and gave a clear indication of the breadth of particle physics activities in the UK

Modeling analysis of the lymphocytopoiesis dynamics in chronically irradiated residents of Techa riverside villages

Energy Technology Data Exchange (ETDEWEB)

Smirnova, Olga A. [Federal State Unitary Enterprise Research and Technical Center of Radiation-Chemical Safety and Hygiene, Moscow (Russian Federation); Akleyev, Alexander V. [Urals Research Center for Radiation Medicine (URCRM), Chelyabinsk (Russian Federation); Chelyabinsk State University, Chelyabinsk (Russian Federation); Dimov, Georgy P. [Urals Research Center for Radiation Medicine (URCRM), Chelyabinsk (Russian Federation)

2014-08-15

A biologically motivated dynamical model of the lymphocytopoietic system in irradiated humans is applied here to analyze the data obtained under hematological examinations of residents of Techa riverside villages. Those people were exposed to chronic irradiation with varying dose rates, due to the radioactive contamination of the river basin by the Mayak Production Association. Modeling studies revealed the relationship between the dynamics of the lymphocytopoietic system in the examined individuals and the variation of dose rate over the considered period of time. It is found that the developed model is capable of reproducing the decreased level of blood lymphocyte concentration observed during the period of maximum radiation exposure, the recovery processes in the system observed during the period of decreasing dose rate, as well as the enhanced mitotic activity of bone marrow precursor cells in this hematopoietic lineage observed during the entire period under consideration. Mechanisms of these effects of chronic irradiation on the human lymphocytopoietic system are elucidated based on the applied model. The results obtained demonstrate the efficiency of the developed model in the analysis, investigation, and prediction of effects of chronic irradiation with varying dose rate on the human lymphocytopoietic system. In particular, the developed model can be used for predicting any radiation injury of this vital system in people exposed to chronic irradiation due to environmental radiological events, such as anthropogenic radiation accidents or radiological terroristic attacks. (orig.)

PhySIC_IST: cleaning source trees to infer more informative supertrees.

Science.gov (United States)

Scornavacca, Celine; Berry, Vincent; Lefort, Vincent; Douzery, Emmanuel J P; Ranwez, Vincent

2008-10-04

Supertree methods combine phylogenies with overlapping sets of taxa into a larger one. Topological conflicts frequently arise among source trees for methodological or biological reasons, such as long branch attraction, lateral gene transfers, gene duplication/loss or deep gene coalescence. When topological conflicts occur among source trees, liberal methods infer supertrees containing the most frequent alternative, while veto methods infer supertrees not contradicting any source tree, i.e. discard all conflicting resolutions. When the source trees host a significant number of topological conflicts or have a small taxon overlap, supertree methods of both kinds can propose poorly resolved, hence uninformative, supertrees. To overcome this problem, we propose to infer non-plenary supertrees, i.e. supertrees that do not necessarily contain all the taxa present in the source trees, discarding those whose position greatly differs among source trees or for which insufficient information is provided. We detail a variant of the PhySIC veto method called PhySIC_IST that can infer non-plenary supertrees. PhySIC_IST aims at inferring supertrees that satisfy the same appealing theoretical properties as with PhySIC, while being as informative as possible under this constraint. The informativeness of a supertree is estimated using a variation of the CIC (Cladistic Information Content) criterion, that takes into account both the presence of multifurcations and the absence of some taxa. Additionally, we propose a statistical preprocessing step called STC (Source Trees Correction) to correct the source trees prior to the supertree inference. STC is a liberal step that removes the parts of each source tree that significantly conflict with other source trees. Combining STC with a veto method allows an explicit trade-off between veto and liberal approaches, tuned by a single parameter.Performing large-scale simulations, we observe that STC+PhySIC_IST infers much more informative

Experts in the cold war. War experiences and peace conceptions of US-American physicists 1920-1963; Experten im Kalten Krieg. Kriegserfahrungen und Friedenskonzeptionen US-amerikanischer Kernphysiker 1920-1963

Energy Technology Data Exchange (ETDEWEB)

Wunderle, Ulrike

2015-07-01

The study is dedicated to the American elite of nuclear physicists, which explained after the second world war the possibilities of their science for war and peace. What induced their thinking and handling? The focus lies on the scientific shapings and war experiences of the first really international generation of physicists, which began in the 1920th years their career before many of their representatives had to fly from the NS regime from Europe and cooperated in the Manhattan project in the construction of the atomic bomb. These experiences the author refers to in order to get on the track of the explanations of the exper elite in the immediate afterwar time and in the cold war. How far their internationally and by actual war experiences shaped thinking about their own contribution as scientist to the national security - in the sense of discouragement or the cooperative conflict regulation - found its expression in the cold war, is drawn on different action levels of the participants from the Geneve conference ''Atoms for Peace'' of 1955 until the signing of the so-called Limited Test Ban Treaty of 1963.

A Historical Survey of Sir Karl Popper's Contribution to Quantum Mechanics

Directory of Open Access Journals (Sweden)

William M. Shields

2012-11-01

Full Text Available Sir Karl Popper (1902-1994, though not trained as a physicist and embarrassed early in his career by a physics error pointed out by Einstein and Bohr, ultimately made substantial contributions to the interpretation of quantum mechanics. As was often the case, Popper initially formulated his position by criticizing the views of others - in this case Niels Bohr and Werner Heisenberg. Underlying Popper's criticism was his belief that, first, the Copenhagen interpretation of quantum mechanics abandoned scientific realism and second, the assertion that quantum theory was complete (an assertion rejected by Einstein among others amounted to an unfalsifiable claim. Popper insisted that the most basic predictions of quantum mechanics should continue to be tested, with an eye towards falsification rather than mere adding of decimal places to confirmatory experiments. His persistent attacks on the Copenhagen interpretation were aimed not at the uncertainty principle itself and the formalism from which it was derived, but at the acceptance by physicists of an unclear epistemology and ontology that left critical questions unanswered. Quanta 2012; 1: 1–12.

Views of a physicist selected papers of N G van Kampen

CERN Document Server

Meijer, Paul Herman E

2000-01-01

N G van Kampen is a well-known theoretical physicist who has had a long and distinguished career. His research covers scattering theory, plasma physics, statistical mechanics, and various mathematical aspects of physics. In addition to his scientific work, he has written a number of papers about more general aspects of science. An indefatigable fighter for intellectual honesty and clarity, he has pointed out repeatedly that the fundamental ideas of physics have been needlessly obscured.As those papers appeared in various journals, partly in Dutch, it was felt that it would be worthwhile to col

Procedure for physicist's scanning in the image processing system of bubble chambers

International Nuclear Information System (INIS)

Gritsaenko, I.A.; Petrovykh, L.P.; Petrovykh, Yu.L.; Fenyuk, A.B.

1984-01-01

The algorithm of the program of physicist's scanning for data processing from photo images in experiments using bubble chambers is described. The program allows one to perform sorting or selection of specific events for subsequent processing and identification of separate particles by bubble density along the track or by the character of the decay. The fraction of protons separated automatically constituted 97%. The program has been used for processing 50 thousand events at the BEBC chamber

The updated ESTRO core curricula 2011 for clinicians, medical physicists and RTTs in radiotherapy/radiation oncology

NARCIS (Netherlands)

E.F. Eriksen (Erik); R.C. Beavis; A.J. Coffey (Alison); J-W.H. Leer (Jan-Willem); S.M. Magrini (Stefano); K. Benstead (Kim); T. Boelling (Tobias); M. Hjälm-Eriksson (Marie); R. Kantor (Rami); B. MacIejewski (Boguslaw); M. Mezeckis (Maris); A. Oliveira (Angelo); P. Thirion (Pierre); P. Vitek (Pavel); D.R. Olsen (Dag Rune); T. Eudaldo (Teresa); W. Enghardt (Wolfgang); P. Francois (Patrice); C. Garibaldi (Cristina); B.J.M. Heijmen (Ben); M. Josipovic (Mirjana); T. Major (Tibor); S. Nikoletopoulos (Stylianos); A. Rijnders (Alex); M. Waligorski (Michael); M. Wasilewska-Radwanska (Marta); L. Mullaney (Laura); A. Boejen (Annette); A. Vaandering (Aude); W. Vandevelde (Wouter); C. Verfaillie (Christine); R. Pötter (Richard)

2012-01-01

textabstractIntroduction: In 2007 ESTRO proposed a revision and harmonisation of the core curricula for radiation oncologists, medical physicists and RTTs to encourage harmonised education programmes for the professional disciplines, to facilitate mobility between EU member states, to reflect the

The updated ESTRO core curricula 2011 for clinicians, medical physicists and RTTs in radiotherapy/radiation oncology.

NARCIS (Netherlands)

Eriksen, J.G.; Beavis, A.W.; Coffey, M.A.; Leer, J.W.H.; Magrini, S.M.; Benstead, K.; Boelling, T.; Hjalm-Eriksson, M.; Kantor, G.; Maciejewski, B.; Mezeckis, M.; Oliveira, A.; Thirion, P.; Vitek, P.; Olsen, D.R.; Eudaldo, T.; Enghardt, W.; Francois, P.; Garibaldi, C.; Heijmen, B.; Josipovic, M.; Major, T.; Nikoletopoulos, S.; Rijnders, A.; Waligorski, M.; Wasilewska-Radwanska, M.; Mullaney, L.; Boejen, A.; Vaandering, A.; Vandevelde, G.; Verfaillie, C.; Potter, R.

2012-01-01

INTRODUCTION: In 2007 ESTRO proposed a revision and harmonisation of the core curricula for radiation oncologists, medical physicists and RTTs to encourage harmonised education programmes for the professional disciplines, to facilitate mobility between EU member states, to reflect the rapid

Proceedings of the school for young high energy physicists

International Nuclear Information System (INIS)

Barlow, R.J.

1993-04-01

The 1992 School for young High Energy Physicists took place from September 6-19, at the Cosener's House, Abingdon, and was attended by virtually all United Kingdom 1st year graduate students in the field of Experimental Particle Physics. It was organised and funded by the Rutherford Appleton Laboratory, whose assistance is very gratefully acknowledged. Published here are the lectures that were given in the mornings. These were supplemented and reinforced by the work in the afternoons, which were devoted to problems and tutorials. at the end of the intensive two week course the students emerged exhausted, but with a thorough grounding in the Standard Model of Elementary Particle Physics on which most of them are performing their experimental work. (author)

Managing Inflections in Life and Career: Tale from a Physicist

Science.gov (United States)

Bhattacharya, Santanu

2010-03-01

By training, a physicist possesses one of the rarest qualities ever imparted in an educational degree program, namely, the ability to take on complex problems, divide them into ``solvable'' parts, derive solutions and put them back as insightful outputs. Dr Bhattacharya, CEO of Salorix, a research, analytics and consulting firm, explains how he has used these skills learned at the graduate school to build a career as a scientist, management consultant and entrepreneur. He will also speak about how the real-life skillsets of understanding and dealing with ``Inflections'', self discovery and introspection can be a great tool for managing one's life and career progression.

Duty health physicist program at Byron Nuclear Power Station - a cost-effective way to manage routine plant health physics activities

International Nuclear Information System (INIS)

Goldsmith, D.G.; Carey, T.R.

1987-01-01

The Duty Health Physicist Program at Byron Station was established to deal with routine health physics tasks and provide an interface between frontline and upper radiation-chemistry management. The program consists of a weekly rotation of selected members of the health physics staff into the duty health physicist position to handle the assigned duty tasks. The tasks include, but are not limited to, daily isotopic and air sample review, effluent release package review, maximum permissible concentration calculations, dose approvals, as-low-as-reasonably-achievable action review of pending jobs, and general availability to answer questions and address problems in health-physics-related areas of plant operation. The daily attendance of the duty health physicist at the radiation-chemistry and station plan-of-the-day meetings has increased the overall presence and visibility of the health physics program to upper station management and other station departments. Since its inception in July of 1985, the Duty Health Physics Program has been a major contributor to the observed 50% reduction in reportable personnel errors in the radiation-chemistry department

The updated ESTRO core curricula 2011 for clinicians, medical physicists and RTTs in radiotherapy/radiation oncology

DEFF Research Database (Denmark)

Eriksen, Jesper G; Beavis, Andrew W; Coffey, Mary A

2012-01-01

In 2007 ESTRO proposed a revision and harmonisation of the core curricula for radiation oncologists, medical physicists and RTTs to encourage harmonised education programmes for the professional disciplines, to facilitate mobility between EU member states, to reflect the rapid development of the ...

Why are there so few female physicists?

CERN Multimedia

Marianne Johansen

Physics has always had a relatively low proportion of female students and researchers. In the EU there are on average 33% female PhD-graduates in the physical sciences, while the percentage of female professors amounts to 9% [1]. At CERN the proportion is even less with only 6.6 % of the research staff being women [2]. The fact that there is no proportional relationship between the number of PhD-graduates and professors also suggests women are less likely to succeed in an academic career than men [1]. A typical ATLAS plenary meeting. More laptops than women... Is the low representation of women in physics a problem, do we actually need more female physicists? In my view this question has to be answered from three perspectives, the perspective of society, the perspective of science and the perspective of women. The perspective of society Starting from the viewpoint of society, several issues can be raised. Firstly, physics is a field of innovation. Many technological advancements having a huge imp...

Language and Reality. Peter Mittelstaedt's Contributions to the Philosophy of Physics

Science.gov (United States)

Falkenburg, Brigitte

2010-10-01

The article investigates the way in which Peter Mittelstaedt has been contributing to the philosophy of physics for half a century. It is shown that he pursues a path between rationalism and empiricism in the sense of Erhard Scheibe’s philosophy of the physicists. Starting from Kant’s a priori he gives a rational reconstruction of the conceptual revolutions of 20th century physics. The central topic of his philosophy of physics is the quest for semantic self-consistency, which for quantum mechanics is a hard nut to crack.

Entrepreneurship for Physicists; A practical guide to move inventions from university to market

Science.gov (United States)

Iannuzzi, Davide

2017-10-01

This book offers a concise analysis of the key ingredients that enable physicists to successfully move their idea from university to market, bringing added value to their customers. It dives into a set of theories, models, and tools that play fundamental roles in technology transfer including topics often neglected by other books including trust, communication, and persuasion. It also explains how most of the topics discussed are applicable to careers in a broader sense.

The global survey of physicists: A collaborative effort illuminates the situation of women in physics

Science.gov (United States)

Ivie, Rachel; Tesfaye, Casey Langer; Czujko, Roman; Chu, Raymond

2013-03-01

The results of the Global Survey of Physicists draw attention to the need to focus on factors other than representation when discussing the situation of women in physics. Previous studies of women in physics have mostly focused on the lack of women in the field. This study goes beyond the obvious shortage of women and shows that there are much deeper issues. For the first time, a multinational study was conducted with approximately 15,000 respondents from 130 countries, showing that problems for women in physics transcend national borders. Across all countries, women have fewer resources and opportunities and are more affected by cultural expectations concerning child care. We show that limited resources and opportunities hurt career progress, and because women have fewer opportunities and resources, their careers progress more slowly. We also show the disproportionate effects of children on women physicists' careers. Cultural expectations about home and family are difficult to change. However, for women to have successful outcomes and advance in physics, they must have equal access to resources and opportunities.

Conflicting paradigms in radiation protection: 20 Questions with answers from the regulator, the health physicist, the scientist, and the lawyers

International Nuclear Information System (INIS)

Strom, D.J.; Stansbury, P.S.; Porter, S.W. Jr.

1995-01-01

George Orwell's open-quotes doublethinkclose quotes should be generalized to open-quotes polythinkclose quotes to describe the multiplicity of views that radiation protection professionals must simultaneously accommodate. The paradigms, that is, organizing principles and beliefs, that (1) regulators, (2) operational health physicists, (3) scientists, (4) lawyers for the defendant, and (5) lawyers for the plaintiff use in their approaches to radiation protection are presented. What we believe as scientists often conflicts with what we do for purposes of radiation protection. What we need to do merely to protect humankind and the environment from harmful effects of radiation is far less than what we must do to satisfy the regulator, whose paradigm has checklists, score-keeping, and penalties. In the hands of lawyers, our work must overcome different challenges. Even if the paradigms of the operational health physicist, the scientist, and the regulator match, the odds against the lawyers paradigms also matching are astronomical. The differing paradigms are illustrated by example questions and answers. It is important for educators, trainers, and health physicists to recognize and separate the score-keeping, practice, science, and legal issues in health physics

The role of medical physicist in radiation protection

International Nuclear Information System (INIS)

Nusslin, F.

2010-01-01

Ionizing Radiation is applied in Radiation Therapy, Nuclear medicine and Diagnostic Radiology. Radiation Protection in Medical Application of Ionizing Radiation requires specific Professional Competence in all relevant details of the radiation source instrumentation / equipment clinical dosimetry application procedures quality assurance medical risk-benefit assessment. Application in general include Justification of practices (sufficient benefit to the exposed individuals) Limitation of doses to individuals (occupational / public exposure) Optimization of Protection (magnitude and likelihood of exposures, and the number of individuals exposed will be ALARA. Competence of persons is normally assessed by the State by having a formal mechanism for registration, accreditation or certification of medical physicists in the various specialties (e.g. diagnostic radiology, radiation therapy, nuclear medicine). The patient safety in the use of medical radiation will be increased through: Consistent education and certification of medical team members, whose qualifications are recognized nationally, and who follow consensus practice guidelines that meet established national accrediting standards

Communication and information-seeking behavior of PhD students in physicists and astronomy

OpenAIRE

Jamali, Hamid R.

2006-01-01

As a part of a wider doctoral research, this paper deals with the communication and information-seeking behavior of research (PhD) students in physics and astronomy. Based on a qualitative case study of PhD students in the Department of Physics and Astronomy at University College London, this study seeks to derive behavioral patterns in information-seeking activities of PhD students. The study aims to investigate the intradisciplinary differences in information-seeking activities of physicist...

The nuclear shield in the 'thirty-year war' of physicists against ignorant criticism of modern physical theories

International Nuclear Information System (INIS)

Vizgin, Vladimir P

1999-01-01

This article deals with the almost 'thirty-year war' led by physicists against the authorities' incompetent philosophical and ideological interference with science. The 'war' is shown to have been related to the history of Soviet nuclear weapons. Theoretical milestones of 20th century physics, to wit, theory of relativity and quantum mechanics, suffered endless 'attacks on philosophical grounds'. The theories were proclaimed idealistic as well as unduly abstract and out of touch with practice; their authors and followers were labelled 'physical idealists', and later, in the 1940s and 1950s, even 'cosmopolitans without kith or kin'. Meanwhile, quantum and relativistic theories, as is widely known, had become the basis of nuclear physics and of the means of studying the atomic nucleus (charged particle accelerators, for instance). The two theories thus served, to a great extent, as a basis for both peaceful and military uses of nuclear energy, made possible by the discovery of uranium nuclear fission under the action of neutrons. In the first part, the article recounts how prominent physicists led the way to resisting philosophical and ideological pressure and standing up for relativity, quantum theories and nuclear physics, thus enabling the launch of the atomic project. The second part contains extensive material proving the point that physicists effectively used the 'nuclear shield' in the 1940s and 1950s against the 'philosophical-cosmopolitan' pressure, indeed saving physics from a tragic fate as that of biology at the Academy of Agricultural Sciences (VASKhNIL) session in 1948. (from the history of physics)

Development of a Real-Time GPS/Seismic Displacement Meter: Applications to Civilian Infrastructure in Orange and Western Riverside Counties, California

Science.gov (United States)

Bock, Yehuda

2005-01-01

We propose a three-year applications project that will develop an Integrated Real-Time GPS/Seismic System and deploy it in Orange and Western Riverside Counties, spanning three major strike-slip faults in southern California (San Andreas, San Jacinto, and Elsinore) and significant populations and civilian infrastructure. The system relying on existing GPS and seismic networks will collect and analyze GPS and seismic data for the purpose of estimating and disseminating real-time positions and total ground displacements (dynamic, as well as static) during all phases of the seismic cycle, from fractions of seconds to years. Besides its intrinsic scientific use as a real-time displacement meter (transducer), the GPS/Seismic System will be a powerful tool for local and state decision makers for risk mitigation, disaster management, and structural monitoring (dams, bridges, and buildings). Furthermore, the GPS/Seismic System will become an integral part of California's spatial referencing and positioning infrastructure, which is complicated by tectonic motion, seismic displacements, and land subsidence. Finally, the GPS/Seismic system will also be applicable to navigation in any environment (land, sea, or air) by combining precise real-time instantaneous GPS positioning with inertial navigation systems. This development will take place under the umbrella of the California Spatial Reference Center, in partnership with local (Counties, Riverside County Flood and Water Conservation District, Metropolitan Water District), state (Caltrans), and Federal agencies (NGS, NASA, USGS), the geophysics community (SCIGN/SCEC2), and the private sector (RBF Consulting). The project will leverage considerable funding, resources, and R&D from SCIGN, CSRC and two NSF-funded IT projects at UCSD and SDSU: RoadNet (Real-Time Observatories, Applications and Data Management Network) and the High Performance Wireless Research and Education Network (HPWREN). These two projects are funded to

South African Association of Physicists in Medicine and Biology: 27. Annual congress, 11-13 Mar 1987, BLoemfontein

International Nuclear Information System (INIS)

1987-01-01

The twenty-seventh annual congress of the South African Association of Physicists in Medicine and Biology was held from 11-13 March 1987, in Bloemfontein. Papers delivered at the conference covered subjects like medical physics, radiotherapy, computed tomography, scintigraphy, radiation doses and dosimetry and radioisotopes in diagnosis

Radiation physics for medical physicists

International Nuclear Information System (INIS)

Podgorsak, E.B.

2006-01-01

This book summarizes the radiation physics knowledge that professionals working in medical physics need to master for efficient and safe dealings with ionizing radiation. It contains eight chapters, each chapter covering a specific group of subjects related to radiation physics and is intended as a textbook for a course in radiation physics in medical-physics graduate programs. However, the book may also be of interest to the large number of professionals, not only medical physicists, who in their daily occupations deal with various aspects of medical physics and find a need to improve their understanding of radiation physics. The main target audience for this book is graduate students studying for M.Sc. and Ph.D. degrees in medical physics, who have to possess the necessary physics and mathematics background knowledge to be able to follow and master the complete textbook. Medical residents, technology students and biomedical engineering students may find certain sections too challenging or esoteric, yet they will find many sections interesting and useful in their studies. Candidates preparing for professional certification exams in any of the medical physics subspecialties should find the material useful, and some of the material would also help candidates preparing for certification examinations in medical dosimetry or radiation-related medical specialties. Numerous textbooks are available covering the various subspecialties of medical physics but they generally make a transition from the elementary basic physics directly into the intricacies of the given medical physics subspecialty. The intent of this textbook is to provide the missing link between the elementary physics on the one hand and the physics of the subspecialties on the other hand. (orig.)

SU-D-18C-06: Initial Experience with Implementing MRI Safety Guidelines for Patients with Pacemakers - Medical Physicist Perspective

Energy Technology Data Exchange (ETDEWEB)

James, J; Place, V; Panda, A [Mayo Clinic, Scottsdale, AZ (United States); Edmonson, H [Mayo Clinic College of Medicine, Rochester, MN (United States); Felmlee, J [Mayo Clinic, Rochester, MN (United States); Pooley, R [Mayo Clinic, Jacksonville, FL (United States)

2014-06-01

Purpose: Several institutions have developed MRI guidelines for patients with MR-unsafe or MR-conditional pacemakers. Here we highlight the role of a medical physicist in implementing these guidelines for non-pacemaker dependent patients. Guidelines: Implementing these guidelines requires involvement from several medical specialties and a strong collaboration with the site MRI supervisor to develop a structured workflow. A medical physicist is required to be present during the scan to supervise the MR scanning and to maintain a safety checklist that ensures: 1) uninterrupted patient communication with the technologist, 2) continuous patient physiologic monitoring (e.g. blood pressure and electrocardiography) by a trained nurse, 3) redundant patient vitals monitoring (e.g. pulse oximetry) due to the possibility of in vivo electrocardiography reading fluctuations during image acquisition. A radiologist is strongly recommended to be available to review the images before patients are discharged from the scanner. Pacemaker MRI should be restricted to 1.5T field strength. The MRI sequences should be optimized by the physicist with regards to: a) SAR: limited to <1.5 W/Kg for MR-unsafe pacemakers in normal operating mode, b) RF exposure time: <30 min, c) Coils: use T/R coils but not restricted to such, d) Artifacts: further optimization of sequences whenever image quality is compromised due to the pacemaker. In particular, cardiac, breast and left-shoulder MRIs are most susceptible to these artifacts. Possible strategies to lower the SAR include: a) BW reduction, 2) echo-train-length reduction, 3) increase TR, 4) decrease number of averages, 5) decrease flip angle, 6) reduce slices and/or a combination of all the options. Conclusion: A medical physicist in collaboration with the MR supervisor plays an important role in the supervision/implementation of safe MR scanning of pacemaker patients. Developing and establishing a workflow has enabled our institution to scan over

SU-D-18C-06: Initial Experience with Implementing MRI Safety Guidelines for Patients with Pacemakers - Medical Physicist Perspective

International Nuclear Information System (INIS)

James, J; Place, V; Panda, A; Edmonson, H; Felmlee, J; Pooley, R

2014-01-01

Purpose: Several institutions have developed MRI guidelines for patients with MR-unsafe or MR-conditional pacemakers. Here we highlight the role of a medical physicist in implementing these guidelines for non-pacemaker dependent patients. Guidelines: Implementing these guidelines requires involvement from several medical specialties and a strong collaboration with the site MRI supervisor to develop a structured workflow. A medical physicist is required to be present during the scan to supervise the MR scanning and to maintain a safety checklist that ensures: 1) uninterrupted patient communication with the technologist, 2) continuous patient physiologic monitoring (e.g. blood pressure and electrocardiography) by a trained nurse, 3) redundant patient vitals monitoring (e.g. pulse oximetry) due to the possibility of in vivo electrocardiography reading fluctuations during image acquisition. A radiologist is strongly recommended to be available to review the images before patients are discharged from the scanner. Pacemaker MRI should be restricted to 1.5T field strength. The MRI sequences should be optimized by the physicist with regards to: a) SAR: limited to <1.5 W/Kg for MR-unsafe pacemakers in normal operating mode, b) RF exposure time: <30 min, c) Coils: use T/R coils but not restricted to such, d) Artifacts: further optimization of sequences whenever image quality is compromised due to the pacemaker. In particular, cardiac, breast and left-shoulder MRIs are most susceptible to these artifacts. Possible strategies to lower the SAR include: a) BW reduction, 2) echo-train-length reduction, 3) increase TR, 4) decrease number of averages, 5) decrease flip angle, 6) reduce slices and/or a combination of all the options. Conclusion: A medical physicist in collaboration with the MR supervisor plays an important role in the supervision/implementation of safe MR scanning of pacemaker patients. Developing and establishing a workflow has enabled our institution to scan over

The night of the physicists. Heisenberg, Hahn, Weizsaecker, and the German bomb

International Nuclear Information System (INIS)

Schirach, Richard von

2014-01-01

Finally the German atomic physicists around Heisenberg, von Weizsaecker, and Hahn worked on their ''uranium machine'' in a Swabian beer-cellar - and took themselves for the world elite of nuclear research. In imprisonment they heared from the dropping of the Hiroshima bomb - a shock. Richard von Schirach shows the hindered ''fathers of the German atomic bomb'' in close-up, their eagerness, their hybris, their true importance, and their attempts to give after the war a new interpretation of their own role. A book, which raises in the sense of Duerrenmatt the question for the responsibility of science.

Physicists develop more powerful tools to combat cancer

CERN Multimedia

Antonella Del Rosso and Fabio Capello

2012-01-01

The tools physicists are currently sharing with doctors to defeat cancer are high-tech sensors for early detection and particles for use as sharp projectiles. The latest advances in medical physics and some of the most sophisticated devices for imaging, monitoring and treatment were presented at the ICTR-PHE 2012 conference. They will shape the future of advanced healthcare.   @font-face { font-family: "Cambria Math"; }@font-face { font-family: "Cambria"; }p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: Cambria; }p.MsoCommentText, li.MsoCommentText, div.MsoCommentText { margin: 0cm 0cm 0.0001pt; font-size: 10pt; font-family: Cambria; }span.MsoCommentReference { }a:link, span.MsoHyperlink { color: blue; text-decoration: underline; }a:visited, span.MsoHyperlinkFollowed { color: purple; text-decoration: underline; }span.CommentTextChar { }.MsoChpDefault { font-size: 10pt; font-family: Cambria; }div.WordSection1 { page: WordSection1; } So...

Discovery Mondays - The particle physicist's best friend: electricity

CERN Document Server

2005-01-01

One of CERN's electrical substations, at Prévessin. Electricity is one of CERN's closest allies. Without it, none of the physicists' extraordinary instruments would work. It is electricity that will guide and accelerate particles around the 27-km ring of the world's most powerful accelerator, the LHC. In the giant magnets inside the experiments electricity is also used to produce a magnetic field 200,000 times greater than the Earth's own magnetic field. Inside the detectors, the resulting magnetic force is used to bend the trajectories of the particles, allowing them to be identified and helping us gain a better understanding of what has happened at the heart of the collisions. Understanding how magnetic fields are produced inside the ATLAS experiment is one of several themes on the programme of the next Discovery Monday. And for a close-up view of operations, we'll also be taking you on a visit to the electricity substation at Meyrin. Come and meet CERN's best friend - electricity. Join us at the Micro...

Forging New, Non-traditional Partnerships Among Physicists, Teachers and Students

Energy Technology Data Exchange (ETDEWEB)

Bardeen, Marjorie [Fermilab; Adams, Mark [Illinois U., Chicago; Wayne, Mitchell [Notre Dame U.; Karmgard, Dan [Notre Dame U.; Goussiou, Anna [Washington U., Seattle

2017-05-02

The QuarkNet collaboration has forged new, nontraditional relationships among particle physicists, high school teachers and their students. QuarkNet provides professional development for teachers and creates opportunities for teachers and students to engage in particle physics data investigations and join research teams. Embedded in the U.S. particle research community, QuarkNet leverages the nature of particle physics research—the long duration of the experiments with extensive lead times, construction periods, and data collection and analysis periods. QuarkNet is patterned after the large collaborations with a central management infrastructure and a distributed workload across university- and lab-based research groups. We describe the important benefits of the QuarkNet outreach program that flow to university faculty and present successful strategies that others can adapt for use in their countries.

Salary Information for Nuclear Engineers and Health Physicists, July 1996; FINAL

International Nuclear Information System (INIS)

Oak Ridge Institute for Science and Education

1996-01-01

Salary information was collected for July 1996 for personnel working as nuclear engineers and health physicists. The salary information includes personnel at the B.S., M.S., and Ph.D. levels with zero, one, three, four to seven, and eight to ten years of professional work experience. Information is provided for utilities and non-utilities. Non-utilities include private sector organizations and U.S. Department of Energy contractor-operated facilities. Government agencies, the military, academic organizations, and medical facilities are excluded. In previous years the salary data have been collected for October. In 1996, the data were collected for July; thus, some caution must be exercised in making annual salary trend comparisons

Scientific Productivity and Academic Promotion: A Study on French and Italian Physicists. NBER Working Paper No. 16341

Science.gov (United States)

Lissoni, Francesco; Mairesse, Jacques; Montobbio, Fabio; Pezzoni, Michele

2010-01-01

The paper examines the determinants of scientific productivity (number of articles and journals' impact factor) for a panel of about 3600 French and Italian academic physicists active in 2004-05. Endogeneity problems concerning promotion and productivity are addressed by specifying a generalized Tobit model, in which a selection probit equation…

Geologic map of the west half of the Blythe 30' by 60' quadrangle, Riverside County, California and La Paz County, Arizona

Science.gov (United States)

Stone, Paul

2006-01-01

The Blythe 30' by 60' quadrangle is located along the Colorado River between southeastern California and western Arizona. This map depicts the geology of the west half of the Blythe quadrangle, which is mostly in California. The map area is a desert terrain consisting of mountain ranges surrounded by extensive alluvial fans and plains, including the flood plain of the Colorado River which covers the easternmost part of the area. Mountainous parts of the area, including the Big Maria, Little Maria, Riverside, McCoy, and Mule Mountains, consist of structurally complex rocks that range in age from Proterozoic to Miocene. Proterozoic gneiss and granite are overlain by Paleozoic to Early Jurassic metasedimentary rocks (mostly marble, quartzite, and schist) that are lithostratigraphically similar to coeval formations of the Colorado Plateau region to the east. The Paleozoic to Jurassic strata were deposited on the tectonically stable North American craton. These rocks are overlain by metamorphosed Jurassic volcanic rocks and are intruded by Jurassic plutonic rocks that represent part of a regionally extensive, northwest-trending magmatic arc. The overlying McCoy Mountains Formation, a very thick sequence of weakly metamorphosed sandstone and conglomerate of Jurassic(?) and Cretaceous age, accumulated in a rapidly subsiding depositional basin south of an east-trending belt of deformation and east of the north-trending Cretaceous Cordilleran magmatic arc. The McCoy Mountains Formation and older rocks were deformed, metamorphosed, and locally intruded by plutonic rocks in the Late Cretaceous. In Oligocene(?) to Miocene time, sedimentary and minor volcanic deposits accumulated locally, and the area was deformed by faulting. Tertiary rocks and their Proterozoic basement in the Riverside and northeastern Big Maria Mountains are in the upper plate of a low-angle normal (detachment) fault that lies within a region of major Early to Middle Miocene crustal extension. Surficial

Proceedings of the 24th Day of Scientific lectures and 20th Annual Meeting of the National Society of Black Physicists

Energy Technology Data Exchange (ETDEWEB)

Jackson, K.H; Carwell, H.V.

1999-11-29

The National Society of Black Physicists will hold its Twentieth annual meeting and its XXIIII Day of Scientific Lectures at Lawrence Berkeley National Laboratory on March 27th - 30th, 1997. The meeting provides a major opportunity for African American physicists and students to present their current research and discuss issues germane to the constituency. It is therefore crucial to have the broadest cross-section of the membership at each meeting. The Lawrence Berkeley National Laboratory was chosen as the site of the 20th annual meeting because of its historical significance to Physics (being one of the first national laboratories in the United States) and the laboratories continuing support of the goals and objectives of the society.

The soil physics contributions of Edgar Buckingham

Science.gov (United States)

Nimmo, J.R.; Landa, E.R.

2005-01-01

During 1902 to 1906 as a soil physicist at the USDA Bureau of Soils (BOS), Edgar Buckingham originated the concepts of matric potential, soil-water retention curves, specific water capacity, and unsaturated hydraulic conductivity (K) as a distinct property of a soil. He applied a formula equivalent to Darcy's law (though without specific mention of Darcy's work) to unsaturated flow. He also contributed significant research on quasi-empirical formulas for K as a function of water content, water flow in capillary crevices and in thin films, and scaling. Buckingham's work on gas flow in soils produced paradigms that are consistent with our current understanding. His work on evaporation elucidated the concept of self-mulching and produced sound and sometimes paradoxical generalizations concerning conditions that favor or retard evaporation. Largely overshadowing those achievements, however, is that he launched a theory, still accepted today, that could predict transient water content as a function of time and space. Recently discovered documents reveal some of the arguments Buckingham had with BOS officials, including the text of a two-paragraph conclusion of his famous 1907 report on soil water, and the official letter documenting rejection of that text. Strained interpersonal relations motivated the departure of Buckingham and other brilliant physicists (N.E. Dorsey, F.H. King, and Lyman Briggs) from the BOS during 1903 to 1906. Given that Buckingham and his BOS colleagues had been rapidly developing the means of quantifying unsaturated flow, these strained relations probably slowed the advancement of unsaturated flow theory. ?? Soil Science Society of America.

Qualification diploma in radiological and medical physics. Evolution of the initial training of hospital physicists

International Nuclear Information System (INIS)

Hammadi, A.

2009-01-01

This series of slides presents: - the evolution of the radio-physicists training since its creation (history, 1995-2005 era, 2005-2009 changes); - the qualification diploma in radiological and medical physics (QDRMP - DQPRM in French) in figures (validating services, number of qualified people); - the QDRMP context and goals (strength needs, limited number of candidates); - the means implemented to reach the goals; - the perspectives (increase of students number, continuous training). (J.S.)

An introduction to tensors and group theory for physicists

CERN Document Server

Jeevanjee, Nadir

2011-01-01

An Introduction to Tensors and Group Theory for Physicists provides both an intuitive and rigorous approach to tensors and groups and their role in theoretical physics and applied mathematics. A particular aim is to demystify tensors and provide a unified framework for understanding them in the context of classical and quantum physics. Connecting the component formalism prevalent in physics calculations with the abstract but more conceptual formulation found in many mathematical texts, the work will be a welcome addition to the literature on tensors and group theory. Part I of the text begins with linear algebraic foundations, follows with the modern component-free definition of tensors, and concludes with applications to classical and quantum physics through the use of tensor products. Part II introduces abstract groups along with matrix Lie groups and Lie algebras, then intertwines this material with that of Part I by introducing representation theory. Exercises and examples are provided throughout for go...

A browser-based multi-user working environment for physicists

International Nuclear Information System (INIS)

Erdmann, M; Fischer, R; Glaser, C; Klingebiel, D; Komm, M; Müller, G; Rieger, M; Steggemann, J; Urban, M; Winchen, T

2014-01-01

Many programs in experimental particle physics do not yet have a graphical interface, or demand strong platform and software requirements. With the most recent development of the VISPA project, we provide graphical interfaces to existing software programs and access to multiple computing clusters through standard web browsers. The scalable clientserver system allows analyses to be performed in sizable teams, and disburdens the individual physicist from installing and maintaining a software environment. The VISPA graphical interfaces are implemented in HTML, JavaScript and extensions to the Python webserver. The webserver uses SSH and RPC to access user data, code and processes on remote sites. As example applications we present graphical interfaces for steering the reconstruction framework OFFLINE of the Pierre-Auger experiment, and the analysis development toolkit PXL. The browser based VISPA system was field-tested in biweekly homework of a third year physics course by more than 100 students. We discuss the system deployment and the evaluation by the students.

A Superannuated Physicist's Attempts to Master Music Theory: Resolving Cognitive Conflicts and a Paradigm Clash

Science.gov (United States)

Page-Shipp, Roy; van Niekerk, Caroline

2014-01-01

A sexagenarian retired physicist (the first author) set out, with the assistance of members of a university music department, to acquire some insight into Western music theory. For a lifelong singer and seasoned autodidact, this appeared to be a not too formidable challenge, yet he experienced significant difficulty in penetrating the music theory…

Academic Training Lecture | Practical Statistics for LHC Physicists: Descriptive Statistics, Probability and Likelihood | 7-9 April

CERN Multimedia

2015-01-01

Please note that our next series of Academic Training Lectures will take place on the 7, 8 and 9 April 2015   Practical Statistics for LHC Physicists: Descriptive Statistics, Probability and Likelihood, by Harrison Prosper, Floridia State University, USA. from 11.00 a.m. to 12.00 p.m. in the Council Chamber (503-1-001) https://indico.cern.ch/event/358542/

Walther Gerlach (1889-1979) and his way to the successful experimental physicist until around 1925

International Nuclear Information System (INIS)

Huber, Josef Georg

2014-01-01

Walther Gerlach (1889-1979) was born in Wiesbaden-Biebrich and studied physics at the Eberhard-Karls-Universitaet in Tuebingen, where he did his doctorate in February 1912. In this work, there is no room for a complete biography either as it would exceed the scope of this thesis. It is restricted to the first part of his life, which is treated in detail. The aim of this thesis is to understand Walther Gerlach's development into a successful physicist, to find out what influenced him and to identify his achievements during this period until 1925. To gain a greater insight into his personal development the circumstances in his family as well as the conditions regarding his education in school and university will be investigated. His way of dealing with friends and colleagues is analyzed and his approaches to physical problems discussed. The personality of the physicist Gerlach rather emerges from the sum of details observed and examples quoted. However, some events in his life can be named, which show that his achievements did not happen by chance but are connected to his career. This thesis ends more or less with the beginning of the year 1925, when Gerlach accepted the chair for physics in Tuebingen.

Saberes e práticas de mães ribeirinhas e o cuidado dos filhos recém-nascidos: contribuição para a enfermagem Conocimientos y prácticas de las madres ribereñas y el cuidado de los hijos recién nacidos: una contribución a la enfermería Knowledge and practices of riverside mothers and care of newborns: a contribution to nursing

Directory of Open Access Journals (Sweden)

Sayonara Maielle de Souza Maia

2012-07-01

cuidar a sus hijos. Se utilizó un cuestionario dividido en dos etapas: la primera relativa a la identidad socio-económica y cultural, y la segunda en relación con la atención materna del recién nacido. El estudio se basó en el análisis de datos de la etnoenfermería. Resultados y conclusión: entrevistamos a veinte madres ribereñas, cuya edad varió entre los 20 y los 46 años, con una edad media de 33 años. El estudio mostró que los valores culturales ribereños de las madres influyen en el cuidado de los recién nacidos. También se observó que estas mujeres carecen de información relacionada con el cuidado del recién nacido con respecto a, por ejemplo, el cordón umbilical, la higiene y los cólicos.Background:This was a descriptive study with qualitative approach, having as its focus the knowledge and practices of riverside mothers and care of their newborn babies.Objectives: to identify the cultural values in riverside mothers’ care of newborns, and to discuss their knowledge and practices with respect to the care of their newborns. Methodology: data collection took place from January to February 2011 and the location was the riverside town of Benjamin Constant, Amazonas, Brazil.The study participants were mothers born in the coastal city, and responsible for caring for their children. The questionnaire was divided into two stages, the first relating to socioeconomic and cultural identity and the second to the mothers’ care of the newborn baby. Data analysis was based on ethnonursing.Results and conclusion:we interviewed twenty riverside mothers aged between 20 and 46 years, mean age 33 years. The study showed that cultural values influence the riverside mothers in the care of their newborns. It was also observed that these women lack information related to the care of the newborn, for example, umbilical stump, hygiene and colic.

How in the 20th century physicists, chemists and biologists answered the question: what is life?

International Nuclear Information System (INIS)

Reutov, Valentin P; Schechter, A N

2010-01-01

The most essential achievements in 20th century biology are analyzed and the question of how throughout the last century physicists, chemists and biologists answered the question 'What is life?' is considered. The most considerable scientific achievement of 20th century biology, and perhaps of all science, is considered by many to be the discovery by biologist J Watson and physicists F Crick and M Wilkins that resulted in establishing the DNA structure. The related work of well-known scientists of the USA and Europe, E Schroedinger, L Pauling, M Perutz, J Kendrew, and of the Russian scientists N K Koltsov, N V Timofeeff-Ressovsky, G A Gamow, A M Olovnikov, is analyzed. Presently, when the structure of DNA, the process of gene expression and even the genomes of human beings are already known, scientists realize that we still do not know many of the most important things. In our opinion, the 20th century studies of nucleic acids largely ignored the principle of the cyclic organisation of DNA. In this connection, we analyze the principle of cyclicity, which in its generality may well complement the concept of the atomic structure of matter. (from the history of physics)

Willie Hobbs Moore (1934-1994): The First Female African American Physicist

Science.gov (United States)

Mickens, Ronald

2011-03-01

We discuss the life and career of Willie Hobbs Moore, the first African American woman to receive a doctorate degree in physics. This achievement occurred in June 1972 at the University of Michigan, Ann Arbor, MI. Her dissertation, directed by the renowned spectroscopist Samuel Krimm, was on the subject of ``A Vibrational Analysis of Secondary Chlorides," and focused on a theoretical analysis of the secondary chlorides for polyvinal-chlorine polymers. From 1972--1977, she, Krimm, and collaborators published more than thirty papers on this and related research issues. In addition to an overview of her family background, her careers as a research physicist and scientist working in various industrial laboratories, we discuss the obstacles and successes she encountered at various stages of her life.

A comprehensive SWOT audit of the role of the biomedical physicist in the education of healthcare professionals in Europe

NARCIS (Netherlands)

Caruana, C.J.; Wasilewska-Radwanska, M.; Aurengo, A.; Dendy, P.P.; Karenauskaite, V.; Malisan, M.R.; Meijer, J.H.; Mihov, D.; Mornstein, V.; Rokita, E.; Vano, E.; Weckstrom, M.; Wucherer, M.

2010-01-01

Although biomedical physicists provide educational services to the healthcare professions in the majority of universities in Europe, their precise role with respect to the education of the healthcare professions has not been studied systematically. To address this issue we are conducting a research

Role and liabilities of the medical physicist in the validation of oncologic treatments in internal vectorized radiation therapy. S.F.P.M. report nr 31, June 2015

International Nuclear Information System (INIS)

Farman, Bardia; Defez, Didier; Martineau, Antoine; Vrigneaud, Jean-Marc; Dieudonne, Arnaud; Giraud, Fabienne; Divry, Guillaume; Bardies, Manuel; Laffont, Sophie; Santoro, Lore; Ferrer, Ludovic; Guilhem, Marie-Therese; Meyer, Philippe; Simon, Luc

2015-06-01

According to legal arrangements and decrees, the medical physicist must validate the preparation of each treatment based on the use of radio-elements in non-sealed sources. As the medical physicist is therefore liable of this validation, this report addresses the approach to be followed to comply with the law. The authors first outline that this report only concerns oncologic internal vectorized radiation therapy, and does not address the dosimetric aspect of these treatments. After having recalled the principles of internal vectorized radiography, they describe the role of the different actors: nuclear physician, medical physicist, radio-pharmacist, radio-pharmacy dispenser, medical electro-radiology operator, state nurse. They address the various aspects of the process of validation of a treatment preparation: technical prerequisites, organisational prerequisite, validation process, traceability, dosimetry. Several examples are proposed in appendix regarding traceability, dosimetry software, examples of PRM files

WE-D-207-00: CT Lung Cancer Screening and the Medical Physicist: Moving Forward

International Nuclear Information System (INIS)

2015-01-01

In the United States, Lung Cancer is responsible for more cancer deaths than the next four cancers combined. In addition, the 5 year survival rate for lung cancer patients has not improved over the past 40 to 50 years. To combat this deadly disease, in 2002 the National Cancer Institute launched a very large Randomized Control Trial called the National Lung Screening Trial (NLST). This trial would randomize subjects who had substantial risk of lung cancer (due to age and smoking history) into either a Chest X-ray arm or a low dose CT arm. In November 2010, the National Cancer Institute announced that the NLST had demonstrated 20% fewer lung cancer deaths among those who were screened with low-dose CT than with chest X-ray. In December 2013, the US Preventive Services Task Force recommended the use of Lung Cancer Screening using low dose CT and a little over a year later (Feb. 2015), CMS announced that Medicare would also cover Lung Cancer Screening using low dose CT. Thus private and public insurers are required to provide Lung Cancer Screening programs using CT to the appropriate population(s). The purpose of this Symposium is to inform medical physicists and prepare them to support the implementation of Lung Screening programs. This Symposium will focus on the clinical aspects of lung cancer screening, requirements of a screening registry for systematically capturing and tracking screening patients and results (such as required Medicare data elements) as well as the role of the medical physicist in screening programs, including the development of low dose CT screening protocols. Learning Objectives: To understand the clinical basis and clinical components of a lung cancer screening program, including eligibility criteria and other requirements. To understand the data collection requirements, workflow, and informatics infrastructure needed to support the tracking and reporting components of a screening program. To understand the role of the medical physicist in

Serving Physicists and the STEM Community: What is the Future of the Science Library?

Science.gov (United States)

Besara, Rachel

2014-03-01

What are the academic work behaviors and needs of physicists and the STEM Community? How are science libraries already used? What assumptions and approaches to information access and control need to be challenged? What does this mean for the future of library support for physics? These are just some of the questions being addressed by research at Florida State University Libraries. Learn how the findings of these studies addresses these questions and what the findings could mean for the future of library support for science research and teaching.

PET: the importance of physicists for the clinical arena

CERN Multimedia

2005-01-01

David Townsend giving a seminar at CERN on 9 February. The past few years have seen significant advances in the development of instrumentation for Positron Emission Tomography (PET). The recent appearance of combined PET and Computed Tomography (CT) scanners that can simultaneously image both anatomy and function is of particular importance. This was the main subject of "Advances in PET imaging: from physics to physician", a seminar presented at CERN by David Townsend on Wednesday 9 February  and organized by the TT and PH groups. David Townsend, who started his career at CERN in the 1970s, is now Professor at the Department of Medicine, University of Tennessee Medical Center (Knoxville, TN). Recipient of the 2004 Clinical Scientist of the Year Award, he is an internationally renowned researcher and PET physicist, with over 25 years of experience in the field. His 1999 image of the year, an award from the Society of Nuclear Medicine in the US, was produced using a combined state-of-the art PET and a true d...

How in the 20th century physicists, chemists and biologists answered the question: what is life?

Energy Technology Data Exchange (ETDEWEB)

Reutov, Valentin P [Institute for Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow (Russian Federation); Schechter, A N [National Institutes of Health, Bethesda, Maryland (United States)

2010-07-08

The most essential achievements in 20th century biology are analyzed and the question of how throughout the last century physicists, chemists and biologists answered the question 'What is life?' is considered. The most considerable scientific achievement of 20th century biology, and perhaps of all science, is considered by many to be the discovery by biologist J Watson and physicists F Crick and M Wilkins that resulted in establishing the DNA structure. The related work of well-known scientists of the USA and Europe, E Schroedinger, L Pauling, M Perutz, J Kendrew, and of the Russian scientists N K Koltsov, N V Timofeeff-Ressovsky, G A Gamow, A M Olovnikov, is analyzed. Presently, when the structure of DNA, the process of gene expression and even the genomes of human beings are already known, scientists realize that we still do not know many of the most important things. In our opinion, the 20th century studies of nucleic acids largely ignored the principle of the cyclic organisation of DNA. In this connection, we analyze the principle of cyclicity, which in its generality may well complement the concept of the atomic structure of matter. (from the history of physics)

The updated ESTRO core curricula 2011 for clinicians, medical physicists and RTTs in radiotherapy/radiation oncology

International Nuclear Information System (INIS)

Eriksen, Jesper G.; Beavis, Andrew W.; Coffey, Mary A.; Leer, Jan Willem H.; Magrini, Stefano M.; Benstead, Kim; Boelling, Tobias; Hjälm-Eriksson, Marie; Kantor, Guy; Maciejewski, Boguslaw; Mezeckis, Maris; Oliveira, Angelo; Thirion, Pierre; Vitek, Pavel

2012-01-01

Introduction: In 2007 ESTRO proposed a revision and harmonisation of the core curricula for radiation oncologists, medical physicists and RTTs to encourage harmonised education programmes for the professional disciplines, to facilitate mobility between EU member states, to reflect the rapid development of the professions and to secure the best evidence-based education across Europe. Material and methods: Working parties for each core curriculum were established and included a broad representation with geographic spread and different experience with education from the ESTRO Educational Committee, local representatives appointed by the National Societies and support from ESTRO staff. Results: The revised curricula have been presented for the ESTRO community and endorsement is ongoing. All three curricula have been changed to competency based education and training, teaching methodology and assessment and include the recent introduction of the new dose planning and delivery techniques and the integration of drugs and radiation. The curricula can be downloaded at (http://www.estro-education.org/europeantraining/Pages/EuropeanCurricula.aspx). Conclusion: The main objective of the ESTRO core curricula is to update and harmonise training of the radiation oncologists, medical physicists and RTTs in Europe. It is recommended that the authorities in charge of the respective training programmes throughout Europe harmonise their own curricula according to the common framework.

The medical physicist in a nuclear medicine department

International Nuclear Information System (INIS)

Trujillo Z, F.E.; Gomez A, E.

2007-01-01

The diagnostic studies and therapeutic treatments carried out in a Nuclear Medicine department make use of radioactive material. For such a reason it becomes necessary to take a strict control in the reception, use and waste that are generated of the typical works inside the department. Also, work related with the quality control of the equipment dedicated to produce images and of those not image formers, need to carry out to guarantee its maximum performance; as well as quality of the diagnostic and of the therapy imparted in patients. Additionally its are needed to make originated works of the individual procedures to patient and of the acquisition of radioactive materials and removal of the waste or radioactive contaminations. Presently work the recommendations of the American College of Radiology (ACR), the European Federation of Organizations for Medical Physics (EFOMP) and of the Mexican Official Standards relating to the functions that should be observed in a Nuclear Medicine Department are exposed. The ACR and the EFOMP, conclude in their recommendations that the medical physicist fulfills with the suitable profile and likewise they describe in detail the actions and functions that he should supervise, to carry out, to document and to inform. (Author)

Important contributions of M.C. Wang and C.S. Wang Chang to non-equilibrium statistical physics

International Nuclear Information System (INIS)

Liu Jixing

2004-01-01

In the middle of the 20th century two Chinese women physicists, Ming-Chen Wang and Cheng-Shu Wang Chang made great contributions to statistical physics. The famous review article 'On the theory of the Brownian motion II' by Ming-Chen Wang and G.E. Uhlenbeck published in Rev. of Mod. Phys. in 1945 provided a complete scientific classification of stochastic processes which is still adopted by the scientific community as the standard classification. The Wang-Chang-Uhlenbeck (WCU) equation proposed jointly by C.S. Wang-Chang and Uhlenbeck became the fundamental kinetic equation for the treatment of transport properties of multi-atomic gases with internal degrees of freedom in the physics literature. These important scientific contributions are analyzed and reviewed

A physicist's views on energy problems

International Nuclear Information System (INIS)

Revol, Ch.J.P.

2003-01-01

The energy problem is one of the most serious challenges facing our civilization. The issue is not whether there are sufficient energy resources in the short- or medium-term, even though world consumption is already considerable, but rather how can we satisfy the world's current and future energy requirements without compromising the planet's ecological balance and how can we ensure an equitable distribution of an acceptable level of energy resources between all countries, including developing countries? The problem has now become a worldwide one with consequences that are also world-wide. The developed countries have lost control of the Earth's ecological future. In 1990 the developing countries consumed only a quarter of the world's energy resources. By 2020 they will already be consuming 60 %. New environmental) friendly technologies will have to be invented to produce sufficient energy at competitive prices. It is not just in the interests of the developed countries to help developing countries to acquire these new technologies, it is also their moral duty to do so. Any injunction to the developing countries not to burn coal and oil as we have done to date would be indefensible. Nuclear energy appears to be one of the possible ways of combating global warming since it produces no CO 2 and is currently the only source or energy capable of meeting demand for several centuries at least. This is the general background to the proposal of Carlo Rubbia and his team of CERN physicists for a new way of exploiting nuclear fission energy which addresses the question: can one imagine fission-based nuclear energy that would be acceptable to our society in other words, an ecological source of nuclear energy? (author)

A map of taste neuron projections in the Drosophila CNS

Indian Academy of Sciences (India)

Department of Biological Sciences, Sungkyunkwan University, Suwon 440-746 Republic of Korea; Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520-8103, USA; These authors contributed equally to the work. Department of Entomology, University of California, Riverside, ...

Roles and Responsibilities, and Education and Training Requirements for Clinically Qualified Medical Physicists

International Nuclear Information System (INIS)

2013-01-01

The IAEA technical cooperation project Strengthening Medical Physics in Radiation Medicine was approved by the IAEA Board of Governors for the period 2009-2013 with the aim of ensuring the safe and effective diagnosis and treatment of patients. The IAEA, together with the World Health Organization and stakeholders from numerous medical physics professional societies worldwide, including the International Organization for Medical Physics (IOMP), the European Federation of Organisations for Medical Physics, the American Association of Physicists in Medicine (AAPM), the Latin American Medical Physics Association, the Asia-Oceania Federation of Organizations for Medical Physics, the European Society for Radiotherapy and Oncology, the European Commission and the International Radiation Protection Association, as well as regional counterparts from Africa, Asia, Europe and Latin America, met in Vienna in May 2009 to plan and coordinate the new project. A shortage of clinically qualified medical physicists (CQMPs), insufficient education and training (especially properly organized and coordinated clinical training), and lack of professional recognition were identified as the main problems to be addressed under this project. This publication was developed under the project framework in response to these findings. It aims, first, at defining appropriately and unequivocally the roles and responsibilities of a CQMP in specialties of medical physics related to the use of ionizing radiation, such as radiation therapy, nuclear medicine, and diagnostic and interventional radiology. Important, non-ionizing radiation imaging specialties, such as magnetic resonance and ultrasound, are also considered for completeness. On the basis of these tasks, this book provides recommended minimum requirements for the academic education and clinical training of CQMPs, including recommendations for their accreditation, certification and registration, along with continuing professional development

Roles and Responsibilities, and Education and Training Requirements for Clinically Qualified Medical Physicists

Energy Technology Data Exchange (ETDEWEB)

NONE

2013-08-15

The IAEA technical cooperation project Strengthening Medical Physics in Radiation Medicine was approved by the IAEA Board of Governors for the period 2009-2013 with the aim of ensuring the safe and effective diagnosis and treatment of patients. The IAEA, together with the World Health Organization and stakeholders from numerous medical physics professional societies worldwide, including the International Organization for Medical Physics (IOMP), the European Federation of Organisations for Medical Physics, the American Association of Physicists in Medicine (AAPM), the Latin American Medical Physics Association, the Asia-Oceania Federation of Organizations for Medical Physics, the European Society for Radiotherapy and Oncology, the European Commission and the International Radiation Protection Association, as well as regional counterparts from Africa, Asia, Europe and Latin America, met in Vienna in May 2009 to plan and coordinate the new project. A shortage of clinically qualified medical physicists (CQMPs), insufficient education and training (especially properly organized and coordinated clinical training), and lack of professional recognition were identified as the main problems to be addressed under this project. This publication was developed under the project framework in response to these findings. It aims, first, at defining appropriately and unequivocally the roles and responsibilities of a CQMP in specialties of medical physics related to the use of ionizing radiation, such as radiation therapy, nuclear medicine, and diagnostic and interventional radiology. Important, non-ionizing radiation imaging specialties, such as magnetic resonance and ultrasound, are also considered for completeness. On the basis of these tasks, this book provides recommended minimum requirements for the academic education and clinical training of CQMPs, including recommendations for their accreditation, certification and registration, along with continuing professional development

Ensuring the Safety and Accuracy of Radiation Medicine: The Role of Medical Physicists

International Nuclear Information System (INIS)

Dixit, Aabha

2014-01-01

In nuclear medicine and radiology, what are the risks of carrying out a procedure without the presence of a qualified medical physicist and without adequate guidelines? • The patient may receive an incorrect dose which can jeopardize the success of the medical treatment or the quality of diagnosis; • The medical staff and the public might be in danger of radiation exposure; • In extreme cases, the procedure could lead to a serious accident. Globally, over 10 000 hospitals use radioisotopes in medicine, with almost 90 per cent for diagnostic procedures. Nuclear medicine technologies, both for treatment and diagnostic imaging for diseases such as cancer or cardiovascular diseases, are being constantly developed and deployed globally in health care systems

Mercury and selenium concentrations in hair samples of women in fertile age from Amazon riverside communities

International Nuclear Information System (INIS)

Pinheiro, M.C.N.; Mueller, R.C.S.; Sarkis, J.E.; Vieira, J.L.F.; Oikawa, T.; Gomes, M.S.V.; Guimaraes, G.A.; Nascimento, J.L.M. do; Silveira, L.C.L.

2005-01-01

The aim of the present study was to evaluate mercury and selenium concentrations in hair samples of reproductive age women from riverside communities of the Tapajos River basin. We studied 19 pregnant and 21 non-pregnant women, 13 to 45 years old, living in the region for at least 2 years, and having a diet rich in fish. The analysis of Se and total Hg were performed in the Instituto de Pesquisas Energeticas e Nucleares (IPEN, Sao Paulo, Brazil) by using a Varian AA220-FS atomic absorption spectrometer with a flow injection system. There were no differences between the two groups - pregnant and non-pregnant - concerning age (23.80 ± 6.92 and 26.60 ± 9.60 years old, respectively) and residential time (20.21 ± 8.30 and 22.20 ± 10.90 years, respectively). The geometric means and ranges for total Hg concentration were similar (p > 0.05): 8.25 μg/g (1.51-19.43) in pregnant and 9.39 μg/g (5.25-21.00) in non-pregnant women, respectively. Total Hg concentrations were also similar in different gestational stages. However, there was a significant difference between the two groups (p < 0.05, Student t test) in relation to Se concentration: 0.61 μg/g (0.40-2.33) in pregnant and 2.46 μg/g (0.92-5.74) in non-pregnant women, respectively. We concluded that Hg exposure levels in reproductive age women were only slightly higher than a provisional tolerable weekly intake of MeHg would provide, that Hg concentration in maternal hair samples was independent of gestational age, and that low Se concentration in pregnant women indicates high mineral consumption by fetal organism to satisfy their metabolic requirements raised during pregnancy, including as a protective mechanism for Hg cytotoxic effects

Dark matter CMB constraints and likelihoods for poor particle physicists

Energy Technology Data Exchange (ETDEWEB)

Cline, James M.; Scott, Pat, E-mail: jcline@physics.mcgill.ca, E-mail: patscott@physics.mcgill.ca [Department of Physics, McGill University, 3600 rue University, Montréal, QC, H3A 2T8 (Canada)

2013-03-01

The cosmic microwave background provides constraints on the annihilation and decay of light dark matter at redshifts between 100 and 1000, the strength of which depends upon the fraction of energy ending up in the form of electrons and photons. The resulting constraints are usually presented for a limited selection of annihilation and decay channels. Here we provide constraints on the annihilation cross section and decay rate, at discrete values of the dark matter mass m{sub χ}, for all the annihilation and decay channels whose secondary spectra have been computed using PYTHIA in arXiv:1012.4515 (''PPPC 4 DM ID: a poor particle physicist cookbook for dark matter indirect detection''), namely e, μ, τ, V → e, V → μ, V → τ, u, d s, c, b, t, γ, g, W, Z and h. By interpolating in mass, these can be used to find the CMB constraints and likelihood functions from WMAP7 and Planck for a wide range of dark matter models, including those with annihilation or decay into a linear combination of different channels.

Dark matter CMB constraints and likelihoods for poor particle physicists

International Nuclear Information System (INIS)

Cline, James M.; Scott, Pat

2013-01-01

The cosmic microwave background provides constraints on the annihilation and decay of light dark matter at redshifts between 100 and 1000, the strength of which depends upon the fraction of energy ending up in the form of electrons and photons. The resulting constraints are usually presented for a limited selection of annihilation and decay channels. Here we provide constraints on the annihilation cross section and decay rate, at discrete values of the dark matter mass m χ , for all the annihilation and decay channels whose secondary spectra have been computed using PYTHIA in arXiv:1012.4515 (''PPPC 4 DM ID: a poor particle physicist cookbook for dark matter indirect detection''), namely e, μ, τ, V → e, V → μ, V → τ, u, d s, c, b, t, γ, g, W, Z and h. By interpolating in mass, these can be used to find the CMB constraints and likelihood functions from WMAP7 and Planck for a wide range of dark matter models, including those with annihilation or decay into a linear combination of different channels

“The Effects of Limited Resources and Opportunities on Women’s Careers in Physics: Results from the Global Survey of Physicists

CERN Multimedia

CERN. Geneva

2012-01-01

The results of the Global Survey of Physicists draw attention to the need to focus on factors other than representation when discussing the situation of women in physics. Previous studies of women in physics have mostly focused on the lack of women in the field. This study goes beyond the obvious shortage of women and shows that there are much deeper issues. For the first time, a multinational study was conducted with 15000 respondents from 130 countries, showing that problems for women in physics transcend national borders. Across all countries, women have fewer resources and opportunities and are more affected by cultural expectations concerning child care. We show that limited resources and opportunities hurt career progress, and because women have fewer opportunities and resources, their careers progress more slowly. We also show the disproportionate effects of children on women physicists' careers. Cultural expectations about home and family are difficult to change. However, for women to have successful ...

Asia honours accelerator physicists

CERN Multimedia

2010-01-01

"Steve Meyers of Cern and Jie Wei of Beijing's Tsinghua University are the first recipients of a new prize for particle physics. The pair were honoured for their contributions to numerous particle-accelerator projects - including Cern's Large Hadron Collider - by the Asian Committee for Future Accelerators (ACFA)..." (1 paragraph)

Differential geometry for physicists and mathematicians moving frames and differential forms : from Euclid past Riemann

CERN Document Server

Vargas, José G

2014-01-01

This is a book that the author wishes had been available to him when he was student. It reflects his interest in knowing (like expert mathematicians) the most relevant mathematics for theoretical physics, but in the style of physicists. This means that one is not facing the study of a collection of definitions, remarks, theorems, corollaries, lemmas, etc. but a narrative - almost like a story being told - that does not impede sophistication and deep results. It covers differential geometry far beyond what general relativists perceive they need to know. And it introduces readers to other areas

The changing role of health physicists as reflected by changes in professional health physics training courses

International Nuclear Information System (INIS)

Brown, L.D.

1996-01-01

Health Physics is a profession with long, honourable traditions; and this paper could be subtitled 'Health Physics - The First 100 Years'. The discovery of X-rays by Conrad Roentgen in 1895 and of natural radioactivity by Henri Becquerel in 1896, was followed two years later by the isolation of radium by Marie and Pierre Curie and then during the last years of the nineteenth century, by explosive world wide growth in the utilisation of both these new discoveries for medical diagnostic and therapeutic purposes The fact that these new medical tools carried associated risks was very quickly learned. Physicians who most enthusiastically adopted them often experienced severe skin injuries to heavily exposed digits, and there are numerous photographs of the hands of such individuals after experiencing several amputations. Regrettably mans ultimately fatal radiation induced cancers also began to appear before the end of the last century, by the first world par there were 200 of these and the death toll already exceeded 50. In the face of this two edged weapon it is not surprising that many of the physicians and medical physicists working in this area turned a great deal of their attention from the exploitation of the new technologies to the protection of their colleagues. These individuals were the pioneer health physicists and. although this name was not used at the time, their background experience in both medicine and physics laid scientific foundations for the new discipline which have remained its keystone ever since. (author)

AAPM Medical Physics Practice Guideline 3.a: Levels of supervision for medical physicists in clinical training.

Science.gov (United States)

Seibert, J Anthony; Clements, Jessica B; Halvorsen, Per H; Herman, Michael G; Martin, Melissa C; Palta, Jatinder; Pfeiffer, Douglas E; Pizzutiello, Robert J; Schueler, Beth A; Shepard, S Jeff; Fairobrent, Lynne A

2015-05-08

The American Association of Physicists in Medicine (AAPM) is a nonprofit professional society whose primary purposes are to advance the science, education and professional practice of medical physics. The AAPM has more than 8,000 members and is the principal organization of medical physicists in the United States.The AAPM will periodically define new practice guidelines for medical physics practice to help advance the science of medical physics and to improve the quality of service to patients throughout the United States. Existing medical physics practice guidelines will be reviewed for the purpose of revision or renewal, as appropriate, on their fifth anniversary or sooner.Each medical physics practice guideline represents a policy statement by the AAPM, has undergone a thorough consensus process in which it has been subjected to extensive review, and requires the approval of the Professional Council. The medical physics practice guidelines recognize that the safe and effective use of diagnostic and therapeutic radiology requires specific training, skills, and techniques, as described in each document. Reproduction or modification of the published practice guidelines and technical standards by those entities not providing these services is not authorized.The following terms are used in the AAPM practice guidelines:Must and Must Not: Used to indicate that adherence to the recommendation is considered necessary to conform to this practice guideline.Should and Should Not: Used to indicate a prudent practice to which exceptions may occasionally be made in appropriate circumstances.

Strong Earthquake Motion Estimates for Three Sites on the U.C. Riverside Campus; TOPICAL

International Nuclear Information System (INIS)

Archuleta, R.; Elgamal, A.; Heuze, F.; Lai, T.; Lavalle, D.; Lawrence, B.; Liu, P.C.; Matesic, L.; Park, S.; Riemar, M.; Steidl, J.; Vucetic, M.; Wagoner, J.; Yang, Z.

2000-01-01

The approach of the Campus Earthquake Program (CEP) is to combine the substantial expertise that exists within the UC system in geology, seismology, and geotechnical engineering, to estimate the earthquake strong motion exposure of UC facilities. These estimates draw upon recent advances in hazard assessment, seismic wave propagation modeling in rocks and soils, and dynamic soil testing. The UC campuses currently chosen for application of our integrated methodology are Riverside, San Diego, and Santa Barbara. The procedure starts with the identification of possible earthquake sources in the region and the determination of the most critical fault(s) related to earthquake exposure of the campus. Combined geological, geophysical, and geotechnical studies are then conducted to characterize each campus with specific focus on the location of particular target buildings of special interest to the campus administrators. We drill and geophysically log deep boreholes next to the target structure, to provide direct in-situ measurements of subsurface material properties, and to install uphole and downhole 3-component seismic sensors capable of recording both weak and strong motions. The boreholes provide access below the soil layers, to deeper materials that have relatively high seismic shear-wave velocities. Analyses of conjugate downhole and uphole records provide a basis for optimizing the representation of the low-strain response of the sites. Earthquake rupture scenarios of identified causative faults are combined with the earthquake records and with nonlinear soil models to provide site-specific estimates of strong motions at the selected target locations. The predicted ground motions are shared with the UC consultants, so that they can be used as input to the dynamic analysis of the buildings. Thus, for each campus targeted by the CEP project, the strong motion studies consist of two phases, Phase 1-initial source and site characterization, drilling, geophysical logging

John Wheatley Award Talk: Promoting Under-Represented Physicists in Asian and Arab Countries and Muslim Women in Science

Science.gov (United States)

Nahar, Sultana

2013-04-01

Physics fascinates people's minds regardless of their geographic location. Often the best students choose the challending profession of physics. Physicists in developing countries in Asia and Arab countries work mostly on their own with limited resources or external collaboration and some do extraordinarily well. However, these dedicated individuals need the support and interactive modalities with their fellow physicists, particularly from developed countries, for coherent and rapid advances in knowledge, discoveries and inventions. My main objective is to promote and motivate physics education and research in developing and Arab countries to a level of excellence commensurate with that at U.S. institutions, and to facilitate connection through the strong network of APS. I have developed a general STEM based program. Another focus of this initiative is the very weak community of Muslim women in science, who have have remained behind owing to surrounding circumstances. To encourage them in scientific professions, and to enable them to nurture their intellectuality, we have formed a network called the International Society of Muslim Women in Science. It now has 85 enthusiastic and aspiring members from 21 countries. I will discuss these and the special needs of the these under-represented scientists, and how APS might lend them its valuable support.

The physicist. Max Planck and the decay of the world; Der Physiker. Max Planck und das Zerfallen der Welt

Energy Technology Data Exchange (ETDEWEB)

Fischer, Ernst Peter

2010-06-15

The live of the physicist Max Planck was as exciting, conflicting, and rich on catastrophes as the epoch, in which he lived. Ernst Peter Fischer draws in this fascinatingly told biography the eventful history of the Nobel-price bearer and illustrates simultaneously the unique attainment of Planck, the quantum theory of whom not only revolted the science but also changed fundamentally our picture of the world.

Azohydromonas riparia sp. nov. and Azohydromonas ureilytica sp. nov. isolated from a riverside soil in South Korea.

Science.gov (United States)

Nguyen, Tuan Manh; Kim, Jaisoo

2017-05-01

White and pale yellow coloured bacteria were isolated from the riverside soil, Daejeon, South Korea, and were designated UCM-11 T , UCM-F25, and UCM-80 T . We found that all strains were able to reduce nitrate, and the cells were aerobic and motile. The DNA G+C contents of UCM-11 T , UCM-F25, and UCM-80 T were between 68.9 to 71.2 mol% and the main ubiquinone was observed as Q-8. Based on16S rRNA gene sequences, strains UCM-11 T and UCM-F25 were found to closely match with Azohydromonas australica IAM 12664 T (98.48-98.55%), and the strain UCM-80 T was the closest match with Azohydromonas lata IAM 12599 T (98.34%). The presence of summed feature 3 (C 16:1 ω7c and/or C 16:1 ω6c), C 16:0 , summed feature 8 (C 18:1 ω7c and/or C 18:1 ω6c) as well as twokinds of hydroxyfatty acids consisting of C 10:0 3-OH and C 12:0 2-OH, and branched fatty acids containing C 16:0 iso and C 17:0 cyclo were detected in all the strains. Phosphatidylethanolamine was a major polar lipid. DNA-DNA relatedness confirmed UCM-11 T , UCM-F25 and UCM-80 T as novel members of the genus Azohydromonas. Based on the morphological, physiological, biochemical and genotypic characteristics, we suggest that strains UCM-11 T , UCM-F25, and UCM-80 T represent novel species within the genus Azohydromonas. The names Azohydromonas riparia sp. nov., and Azohydromonas ureilytica sp. nov. are proposed for the type strains UCM-11 T (=KACC 18570 T =NBRC 111646 T ) and UCM-80 T (=KACC 18576 T =NBRC 111658 T ), respectively.

Intra-urban spatial variability of surface ozone in Riverside, CA: viability and validation of low-cost sensors

Science.gov (United States)

Sadighi, Kira; Coffey, Evan; Polidori, Andrea; Feenstra, Brandon; Lv, Qin; Henze, Daven K.; Hannigan, Michael

2018-03-01

Sensor networks are being more widely used to characterize and understand compounds in the atmosphere like ozone (O3). This study employs a measurement tool, called the U-Pod, constructed at the University of Colorado Boulder, to investigate spatial and temporal variability of O3 in a 200 km2 area of Riverside County near Los Angeles, California. This tool contains low-cost sensors to collect ambient data at non-permanent locations. The U-Pods were calibrated using a pre-deployment field calibration technique; all the U-Pods were collocated with regulatory monitors. After collocation, the U-Pods were deployed in the area mentioned. A subset of pods was deployed at two local regulatory air quality monitoring stations providing validation for the collocation calibration method. Field validation of sensor O3 measurements to minute-resolution reference observations resulted in R2 and root mean squared errors (RMSEs) of 0.95-0.97 and 4.4-5.9 ppbv, respectively. Using the deployment data, ozone concentrations were observed to vary on this small spatial scale. In the analysis based on hourly binned data, the median R2 values between all possible U-Pod pairs varied from 0.52 to 0.86 for ozone during the deployment. The medians of absolute differences were calculated between all possible pod pairs, 21 pairs total. The median values of those median absolute differences for each hour of the day varied between 2.2 and 9.3 ppbv for the ozone deployment. Since median differences between U-Pod concentrations during deployment are larger than the respective root mean square error values, we can conclude that there is spatial variability in this criteria pollutant across the study area. This is important because it means that citizens may be exposed to more, or less, ozone than they would assume based on current regulatory monitoring.

Documenting and Interpreting Ways to Engage Students in `Thinking Like a Physicist'

Science.gov (United States)

van Zee, Emily; Manogue, Corinne

2010-10-01

The Paradigms in Physics Program at Oregon State University has adapted a variety of interactive pedagogies to engage students in `thinking like a physicist.' Video recordings of class sessions document what the students and instructor say and do. This paper discusses development of narrative interpretations of such videos. Examples are drawn from two detailed narratives of activities during which the main ideas emerged during the wrap-up discussions rather than during the tasks that the students had been doing in their small groups. The goal of these `compare and contrast' wrap-up discussions was to help the students envision connections among geometric and algebraic representations of the mathematics they would be using during the coming weeks of instruction in quantum mechanics. The purpose of the narratives is to provide examples of wrap-up discussions with commentary about ways in which the instructor was choosing to guide this process.

PPPC 4 DM secondary: a Poor Particle Physicist Cookbook for secondary radiation from Dark Matter

Energy Technology Data Exchange (ETDEWEB)

Buch, Jatan [Institut de Physique Théorique, Université Paris Saclay, CNRS, CEA,F-91191 Gif-sur-Yvette (France); Department of Physics, Indian Institute of Technology,Kharagpur, West Bengal - 721302 (India); Cirelli, Marco; Giesen, Gaëlle; Taoso, Marco [Institut de Physique Théorique, Université Paris Saclay, CNRS, CEA,F-91191 Gif-sur-Yvette (France)

2015-09-11

We enlarge the set of recipes and ingredients at disposal of any poor particle physicist eager to cook up signatures from weak-scale Dark Matter models by computing two secondary emissions due to DM particles annihilating or decaying in the galactic halo, namely the radio signals from synchrotron emission and the gamma rays from bremsstrahlung. We consider several magnetic field configurations and propagation scenarios for electrons and positrons. We also provide an improved energy loss function for electrons and positrons in the Galaxy, including synchrotron losses in the different configurations, bremsstrahlung losses, ionization losses and Inverse Compton losses with an updated InterStellar Radiation Field.

PPPC 4 DM secondary: a Poor Particle Physicist Cookbook for secondary radiation from Dark Matter

Energy Technology Data Exchange (ETDEWEB)

Buch, Jatan; Cirelli, Marco; Giesen, Gaëlle; Taoso, Marco, E-mail: jbuch.iitkgp@gmail.com, E-mail: marco.cirelli@cea.fr, E-mail: gaelle.giesen@cea.fr, E-mail: marco.taoso@cea.fr [Institut de Physique Théorique, Université Paris Saclay, CNRS, CEA, F-91191 Gif-sur-Yvette (France)

2015-09-01

We enlarge the set of recipes and ingredients at disposal of any poor particle physicist eager to cook up signatures from weak-scale Dark Matter models by computing two secondary emissions due to DM particles annihilating or decaying in the galactic halo, namely the radio signals from synchrotron emission and the gamma rays from bremsstrahlung. We consider several magnetic field configurations and propagation scenarios for electrons and positrons. We also provide an improved energy loss function for electrons and positrons in the Galaxy, including synchrotron losses in the different configurations, bremsstrahlung losses, ionization losses and Inverse Compton losses with an updated InterStellar Radiation Field.

PPPC 4 DM secondary: a Poor Particle Physicist Cookbook for secondary radiation from Dark Matter

International Nuclear Information System (INIS)

Buch, Jatan; Cirelli, Marco; Giesen, Gaëlle; Taoso, Marco

2015-01-01

We enlarge the set of recipes and ingredients at disposal of any poor particle physicist eager to cook up signatures from weak-scale Dark Matter models by computing two secondary emissions due to DM particles annihilating or decaying in the galactic halo, namely the radio signals from synchrotron emission and the gamma rays from bremsstrahlung. We consider several magnetic field configurations and propagation scenarios for electrons and positrons. We also provide an improved energy loss function for electrons and positrons in the Galaxy, including synchrotron losses in the different configurations, bremsstrahlung losses, ionization losses and Inverse Compton losses with an updated InterStellar Radiation Field

The tenth conference of Czechoslovak physicists

International Nuclear Information System (INIS)

Smutny, F.

1991-01-01

Delivered at the conference were 4 plenary lectures and 77 symposium lectures; 227 contributions were presented in the poster form. Out of these, 2 plenary lectures, 30 symposium lectures and 45 poster contributions have been inputted in INIS. The coverage of the conference was very wide and included, among other things, nuclear analytical methods, theoretical physics, particles and their wave manifestations, nuclear physics, subnuclear physics, plasma physics, superconductivity, etc. (Z.S.)

A comprehensive SWOT audit of the role of the biomedical physicist in the education of healthcare professionals in Europe.

Science.gov (United States)

Caruana, C J; Wasilewska-Radwanska, M; Aurengo, A; Dendy, P P; Karenauskaite, V; Malisan, M R; Meijer, J H; Mihov, D; Mornstein, V; Rokita, E; Vano, E; Weckstrom, M; Wucherer, M

2010-04-01

Although biomedical physicists provide educational services to the healthcare professions in the majority of universities in Europe, their precise role with respect to the education of the healthcare professions has not been studied systematically. To address this issue we are conducting a research project to produce a strategic development model for the role using the well-established SWOT (Strengths, Weaknesses, Opportunities, Threats) methodology. SWOT based strategic planning is a two-step process: one first carries out a SWOT position audit and then uses the identified SWOT themes to construct the strategic development model. This paper reports the results of a SWOT audit for the role of the biomedical physicist in the education of the healthcare professions in Europe. Internal Strengths and Weaknesses of the role were identified through a qualitative survey of biomedical physics departments and biomedical physics curricula delivered to healthcare professionals across Europe. External environmental Opportunities and Threats were identified through a systematic survey of the healthcare, healthcare professional education and higher education literature and categorized under standard PEST (Political, Economic, Social-Psychological, Technological-Scientific) categories. The paper includes an appendix of terminology. Defined terms are marked with an asterisk in the text. Copyright 2009 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.

Reflections at La Rabida: the responsibilities of the nuclear physicist for peace

International Nuclear Information System (INIS)

Hodgson, P.E.

1988-01-01

Atomic energy was first applied to war but it was successful in its aim of bringing about peace. Nuclear physicists have been responsible for many momentous changes in world history. Their continuing responsibility to see that the public debates on nuclear issues of both war and peace are conducted with due regard for the essential scientific facts. Attempts by nuclear scientists to influence political decisions, through Pugwash meetings and Non-Poliferation treaties are discussed in an historical context. It is concluded that the anti-nuclear activists have won the propaganda battle about nuclear power - scientists have lost the battle to convey the facts about nuclear physics and especially nuclear safety to the public. Risks from nuclear power are perceived as great whereas in fact they are very small. Wise decisions cannot be made until the facts are known. The media is saturated with false information. Those who know the facts are unable to make their voices heard. This is exceedingly dangerous for our society. (UK)

Valter Ritz as a theoretical physicist and his research on atomic spectra theory

International Nuclear Information System (INIS)

El'yashevich, M.A.; Kemberovskaya, N.G.; Tomil'chik, L.M.

1995-01-01

The article presents a historic-methodological analysis of the scientific heritage of an outstanding Swiss physicist Walter Ritz (1878-1909); the analysis is based on the study of a complete collection of his works published in 1911. In addition to a general description of Ritz's works which comprise publications in spectroscopy, variational method and electrodynamics, the article deals in detail with this fundamental research into atomic spectra theory. Elastic and magnetic model of the atom proposed by Ritz for explaining atomic spectra within the framework of the classical approach are discussed. It is shown that the generalized formulas of Balmer and Rydbery, as well as the combination principle which served later as a basis for formalting Bohr's condition of frequencies, were derived by Ritz as regions corollaries of this models and were out of semiempiric nature, as was assumed. 124 refs

Roles and Responsibilities, and Education and Training Requirements for Clinically Qualified Medical Physicists (Spanish Edition)

International Nuclear Information System (INIS)

2014-01-01

The IAEA technical cooperation project Strengthening Medical Physics in Radiation Medicine was approved by the IAEA Board of Governors for the period 2009-2013 with the aim of ensuring the safe and effective diagnosis and treatment of patients. The IAEA, together with the World Health Organization and stakeholders from numerous medical physics professional societies worldwide, including the International Organization for Medical Physics (IOMP), the European Federation of Organisations for Medical Physics, the American Association of Physicists in Medicine (AAPM), the Latin American Medical Physics Association, the Asia-Oceania Federation of Organizations for Medical Physics, the European Society for Radiotherapy and Oncology, the European Commission and the International Radiation Protection Association, as well as regional counterparts from Africa, Asia, Europe and Latin America, met in Vienna in May 2009 to plan and coordinate the new project. A shortage of clinically qualified medical physicists (CQMPs), insufficient education and training (especially properly organized and coordinated clinical training), and lack of professional recognition were identified as the main problems to be addressed under this project. This publication was developed under the project framework in response to these findings. It aims, first, at defining appropriately and unequivocally the roles and responsibilities of a CQMP in specialties of medical physics related to the use of ionizing radiation, such as radiation therapy, nuclear medicine, and diagnostic and interventional radiology. Important, non-ionizing radiation imaging specialties, such as magnetic resonance and ultrasound, are also considered for completeness. On the basis of these tasks, this book provides recommended minimum requirements for the academic education and clinical training of CQMPs, including recommendations for their accreditation, certification and registration, along with continuing professional development

Characterization of chemical elements of fruits of Leucaena leucocephala in riverside areas of the Piracicaba River Basin, São Paulo, Brazil

International Nuclear Information System (INIS)

França, Elvis J.; Magalhães, Marcelo R.L. de; Ferreira, Fabiano S.; Fernandes, Elisabete A. de N.; Fonseca, Felipe Y.; Rodrigues, Vanessa S.; Cavalca, Isabel P.O.; Camilli, Leandro; Silva, Bruno F.

2017-01-01

The species Leucaena leucocephala is present in several environments. Its fruit is widely used in cattle feed. However, it is classified as an invasive species, causing problems in the restoration of impacted areas. The Piracicaba River Basin is heavily affected by urbanization and industrialization, which shows the proliferation of this species. Considering the importance of this tree species for Brazil, the present study quantifies chemical elements in fruits of this species by applying Instrumental Neutronic Activation Analysis, method k 0 . Samples were collected in riverside areas of the Piracicaba Municipality, São Paulo, Brazil, at different periods (dry and rainy season). After collection, the samples were shattered and transferred to polyethylene capsules and irradiated with neutrons. Certified reference materials were used to evaluate the quality of the analytical procedure, all material was irradiated under a thermal neutron flux of 10 13 cm-2s-1 for 8 hours. Ni-Cr alloy was used for the monitoring of thermal neutron flux. High Resolution Range Spectrometry with HPG detectors was employed for the measurement of the induced radioactivity, allowing the quantification of the chemical elements. Compared with available results of chemical analysis of pods, the chemical elements Ca, K, Ba, Cr and Se presented high concentrations. We also quantified chemical elements of environmental relevance such as As, Hg, Br, Ce, Cs, Eu, Hf, La, Rb, Sb, Sc, Sm, Ta, Tb, Th and Yb, indicating the need for element dynamics studies in the environments occupied by this invasive species

American Association of Physicists in Medicine Task Group 263: Standardizing Nomenclatures in Radiation Oncology.

Science.gov (United States)

Mayo, Charles S; Moran, Jean M; Bosch, Walter; Xiao, Ying; McNutt, Todd; Popple, Richard; Michalski, Jeff; Feng, Mary; Marks, Lawrence B; Fuller, Clifton D; Yorke, Ellen; Palta, Jatinder; Gabriel, Peter E; Molineu, Andrea; Matuszak, Martha M; Covington, Elizabeth; Masi, Kathryn; Richardson, Susan L; Ritter, Timothy; Morgas, Tomasz; Flampouri, Stella; Santanam, Lakshmi; Moore, Joseph A; Purdie, Thomas G; Miller, Robert C; Hurkmans, Coen; Adams, Judy; Jackie Wu, Qing-Rong; Fox, Colleen J; Siochi, Ramon Alfredo; Brown, Norman L; Verbakel, Wilko; Archambault, Yves; Chmura, Steven J; Dekker, Andre L; Eagle, Don G; Fitzgerald, Thomas J; Hong, Theodore; Kapoor, Rishabh; Lansing, Beth; Jolly, Shruti; Napolitano, Mary E; Percy, James; Rose, Mark S; Siddiqui, Salim; Schadt, Christof; Simon, William E; Straube, William L; St James, Sara T; Ulin, Kenneth; Yom, Sue S; Yock, Torunn I

2018-03-15

A substantial barrier to the single- and multi-institutional aggregation of data to supporting clinical trials, practice quality improvement efforts, and development of big data analytics resource systems is the lack of standardized nomenclatures for expressing dosimetric data. To address this issue, the American Association of Physicists in Medicine (AAPM) Task Group 263 was charged with providing nomenclature guidelines and values in radiation oncology for use in clinical trials, data-pooling initiatives, population-based studies, and routine clinical care by standardizing: (1) structure names across image processing and treatment planning system platforms; (2) nomenclature for dosimetric data (eg, dose-volume histogram [DVH]-based metrics); (3) templates for clinical trial groups and users of an initial subset of software platforms to facilitate adoption of the standards; (4) formalism for nomenclature schema, which can accommodate the addition of other structures defined in the future. A multisociety, multidisciplinary, multinational group of 57 members representing stake holders ranging from large academic centers to community clinics and vendors was assembled, including physicists, physicians, dosimetrists, and vendors. The stakeholder groups represented in the membership included the AAPM, American Society for Radiation Oncology (ASTRO), NRG Oncology, European Society for Radiation Oncology (ESTRO), Radiation Therapy Oncology Group (RTOG), Children's Oncology Group (COG), Integrating Healthcare Enterprise in Radiation Oncology (IHE-RO), and Digital Imaging and Communications in Medicine working group (DICOM WG); A nomenclature system for target and organ at risk volumes and DVH nomenclature was developed and piloted to demonstrate viability across a range of clinics and within the framework of clinical trials. The final report was approved by AAPM in October 2017. The approval process included review by 8 AAPM committees, with additional review by ASTRO

Becoming a Physicist: How Identities and Practices Shape Physics Trajectories

Science.gov (United States)

Quan, Gina M.

This dissertation studies the relationships and processes which shape students' participation within the discipline of physics. Studying this early disciplinary participation gives insight to how students are supported in or pushed out of physics, which is an important step in cultivating a diverse set of physics students. This research occurs within two learning environments that we co-developed: a physics camp for high school girls and a seminar for undergraduate physics majors to get started in physics research. Using situated learning theory, we conceptualized physics learning to be intertwined with participation in physics practices and identity development. This theoretical perspective draws our attention to relationships between students and the physics community. Specifically, we study how students come to engage in the practices of the community and who they are within the physics community. We find that students' interactions with faculty and peers impact the extent to which students engage in authentic physics practices. These interactions also impact the extent to which students develop identities as physicists. We present implications of these findings for the design of physics learning spaces. Understanding this process of how students become members of the physics community will provide valuable insights into fostering a diverse set of successful trajectories in physics.

Chien-Shiung Wu: An Icon of Physicist and Woman Scientist in China

Science.gov (United States)

Zhu, Yuelin

2014-03-01

Chien-Shiung Wu, the first female president of APS, is a well-known figure in China, a figure who serves as an inspiration for youths, especially young women, to study science and particularly physics. In this presentation, a historical perspective will be used to show how such an icon was formed. Born in 1912, the year of the Republic Revolution, Wu was in the first generation of physicists in China and her college mentor was a student of Marie Curie. When Wu came to the U.S. for graduate studies in the 1930s, it was a ``golden age'' for nuclear physics, and the invention of the cyclotron by E. O. Lawrence put UC Berkeley at the frontier. Wu was trained there, with Lawrence as her advisor, and later became an expert in Beta-decay. In 1956, Wu conceived and initiated the experiment of Cobalt-60, which, together with other two experiments, eventually proved the asymmetry of parity in weak-interactions, a hypothesis proposed by T. D. Lee and C. N. Yang. The importance of the experiment gained Wu an enormous reputation which spread even to China, when this was a period of hostility in Sino-American relations, and near total isolation due to the Cold-War. Wu was the daughter of a revolutionary, and an activist in college in patriotic student movements, and she combined this background with her scientific career as the way of ``Saving China with Science,'' a common belief reflecting the Zeitgeist of her time. Although she spent most of her life in the U.S., Wu never wavered in her love for or loyalty to her motherland. Her patriotism, as well as her scientific achievement, made Wu a legend in China, being called ``the Chinese Madam Curie.'' Even during the Cultural Revolution, a novel supposedly taking Wu as the original model was very popular in underground circles, widely spread by hand-written-copies. From 1979-1988, the CUSPEA program enrolled hundreds of China's best graduate students into physics departments in American universities. Although Wu herself was not

Evaluation of high throughput screening methods in picking up differences between cultivars of lignocellulosic biomass for ethanol production

DEFF Research Database (Denmark)

Lindedam, Jane; Bruun, Sander; Jørgensen, Henning

2014-01-01

of fermentable sugars, with average cellulose conversions of 57%, 64%, and 71% from Riverside, NREL and CPH, respectively. The best correlation of glucose yields was found between the Riverside and NREL systems (R-2 = 0.2139), and the best correlation for xylose yields was found between Riverside and CPH (R-2...

Mathematical tools for physicists

CERN Document Server

2014-01-01

The new edition is significantly updated and expanded.This unique collection of review articles, ranging from fundamental concepts up to latest applications, contains individual contributions written by renowned experts in the relevant fields. Much attention is paid to ensuring fast access to the information, with each carefully reviewed article featuring cross-referencing, references to the most relevant publications in the field, and suggestions for further reading, both introductory as well as more specialized.While the chapters on group theory, integral transforms, Monte Carlo methods, num

The German Physical Society in the Third Reich physicists between autonomy and accommodation

CERN Document Server

Walker, Mark

2012-01-01

This is a history of one of the oldest and most important scientific societies, the German Physical Society, during the Nazi regime and immediate postwar period. When Hitler was appointed chancellor of Germany in 1933, the Physical Society included prominent Jewish scientists as members, including Fritz Haber and Albert Einstein. As Jewish scientists lost their jobs and emigrated, the Society gradually lost members. In 1938, under pressure from the Nazi Ministry of Science, Education, and Culture, the Society forced out the last of its Jewish colleagues. This action was just the most prominent example of the tension between accommodation and autonomy that characterized the challenges facing physicists in the society. They strove to retain as much autonomy as possible, but tried to achieve this by accommodating themselves to Nazi policies, which culminated in the campaign by the Society’s president to place physics in the service of the war effort.

Between Industry and Academia: A Physicist's Experiences at The Aerospace Corporation

Science.gov (United States)

Camparo, James

2005-03-01

The Aerospace Corporation is a nonprofit company whose purposes are exclusively scientific: to provide research, development, and advisory services for space programs that serve the national interest, primarily the Air Force's Space and Missile Systems Center and the National Reconnaissance Office. The corporation's laboratory has a staff of about 150 scientists who conduct research in fields ranging from Space Sciences to Material Sciences and from Analytical Chemistry to Atomic Physics. As a consequence, Aerospace stands midway between an industrial research laboratory, focused on product development, and academic/national laboratories focused on basic science. Drawing from Dr. Camparo's personal experiences, the presentation will discuss advantages and disadvantages of a career at Aerospace, including the role of publishing in peer-reviewed journals and the impact of work on family life. Additionally, the presentation will consider the balance between basic physics, applied physics, and engineering in the work at Aerospace. Since joining Aerospace in 1981, Dr. Camparo has worked as an atomic physicist specializing in the area of atomic clocks, and has had the opportunity to experiment and publish on a broad range of research topics including: the stochastic-field/atom interaction, radiation effects on semiconductor materials, and stellar scintillation.

The impact of quality assurance in medical radiology in raising the quality of life and the role of medical physicist in this process

International Nuclear Information System (INIS)

Stieve, F.E.

2004-01-01

The goal on establishing quality assurance programmes in diagnostic radiology at the European level is to provide explanations on regulations, which had been developed by International Organizations on the level of the existing knowledge on the use of ionizing radiation for medical diagnosis. Since it is well known that diagnostic radiological users often produce poor quality images and are applying to patients unnecessary high radiation exposure the criteria for performance characteristics related to good imaging quality and patient exposure had been established. The correct application of the principles of quality assurance and quality control in relation to patient exposure needs to be standardised on a general European level, since radiographs should be generally comparable. The implementation of quality assurance programmes and quality control methods could lead to more accurate diagnosis and better informed decisions regarding treatment. The role and responsibility of medical physicists in the process of image production, radiation exposure and quality assurance in diagnostic radiology is now implemented in this Directive. The tasks of the medical physicist in this process had been identified and explained. (author)

Arnold Sommerfeld. Atomic physicist and messenger of culture 1868-1951. A biography

International Nuclear Information System (INIS)

Eckert, Michael

2013-01-01

Arnold Sommerfeld is beside Albert Einstein, Niels Bohr, and Max Planck one of the founders of modern atomic and quantum theory. His career began in the 1890th years at the University of Goettingen, the world center of mathematics of that time. Since 1906 he created on the professorship for theoretical physics at the Munich university one of the most important schools of science, the students of which are well-known theorists of the atomic era like as the Nobel-price winners Hans Bethe, Peter Debye, Wolfgang Pauli, and Werner Heisenberg. He also developed far beyond his subject an unprecedented impact. He travelled as ''messenger of culture'' in many countries in order to advertise in the years after the first world war for the reputation of Germany as culture nation. By the nationalsocialism the Munich ''nursery of theoretical physics'' however was prepared an inglorious end, because Sommerfeld counted for a ''main propagandist of Jewish theories''. By the example of this life of a physicist also the eventful history of a whole subject.

27 January 2011 - Mitglieder des Stiftungsrates Academia Engelberg, Switzerland in CMS surface and underground experimental area with Head of International Relations F. Pauss and ETHZ/CMS Physicist G. Dissertori.

CERN Multimedia

Michael Hoch

2011-01-01

27 January 2011 - Mitglieder des Stiftungsrates Academia Engelberg, Switzerland in CMS surface and underground experimental area with Head of International Relations F. Pauss and ETHZ/CMS Physicist G. Dissertori.

The Uranium Recovery Industry and the Current Nuclear Renaissance — A Health Physicists Perspective

Energy Technology Data Exchange (ETDEWEB)

Brown, S.H., E-mail: sbrown@senes.ca [SENES, Englewood, CO (United States)

2014-05-15

Concurrent with the recognition that nuclear generated electricity must play an increasing role in worldwide energy supply and in consideration of the new nuclear power plants ordered or planned, the demand for uranium needed to fuel these reactors has already outpaced supplies. Accordingly, the price of uranium (typically expressed as US$ per pound U{sub 3}O{sub 8} equivalent) had increased significantly in recent years. As a result, numerous new and reconstituted uranium recovery projects are being developed in the United States and in other countries that possess considerable uranium ore reserves (e.g., Canada, Australia, Kazakhstan, Mongolia, Namibia, and others). It should be noted that in the United States, the current reactor fleet of 104 operating units, which generate 20 percent of the US’s base-load electricity, requires approximately 55 million pounds of U{sub 3}O{sub 8} per year, but only about 4–5 million pounds per year is produced domestically. That is, over 90 percent of current demand, ignoring anticipated increase in requirements in the near future as new plants come online, must come from foreign sources. Domestic uranium production over the last 10 years reached a low of about two million pounds in 2003 and has been increasing steadily since then. Uranium recovery as defined in this paper encompasses conventional uranium mining and milling as well as in situ recovery techniques and the recovery of uranium as a byproduct from other processes, such as phosphoric acid production. Following a brief history of uranium recovery in the US, the paper describes the basic methods and technologies associated with conventional uranium mining, conventional uranium milling and In Situ Recovery (ISR). The “health physicists perspective” is introduced into these discussions by providing summaries of the various radiological environmental monitoring and operational health physics programs that are required for these facilities. Applicable regulatory

TU-A-210-02: HIFU: Why Should a Radiation Oncology Physicist Pay Attention?

International Nuclear Information System (INIS)

Schlesinger, D.

2015-01-01

High-intensity focused ultrasound (HIFU) has developed rapidly in recent years and is used frequently for clinical treatments in Asia and Europe with increasing clinical use and clinical trial activity in the US, making it an important medical technology with which the medical physics community must become familiar. Akin to medical devices that deliver treatments using ionizing radiation, HIFU relies on emitter geometry to non-invasively form a tight focus that can be used to affect diseased tissue while leaving healthy tissue intact. HIFU is unique in that it does not involve the use of ionizing radiation, it causes thermal necrosis in 100% of the treated tissue volume, and it has an immediate treatment effect. However, because it is an application of ultrasound energy, HIFU interacts strongly with tissue interfaces, which makes treatment planning challenging. In order to appreciate the advantages and disadvantages of HIFU as a thermal therapy, it is important to understand the underlying physics of ultrasound tissue interactions. The first lecture in the session will provide an overview of the physics of ultrasound wave propagation; the mechanism for the accumulation of heat in soft-tissue; image-guidance modalities including temperature monitoring; current clinical applications and commercial devices; active clinical trials; alternate mechanisms of action (future of FUS). The second part of the session will compare HIFU to existing ionization radiation techniques. The difficulties in defining a clear concept of absorbed dose for HIFU will be discussed. Some of the technical challenges that HIFU faces will be described, with an emphasis on how the experience of radiation oncology physicists could benefit the field. Learning Objectives: Describe the basic physics and biology of HIFU, including treatment delivery and image guidance techniques. Summarize existing and emerging clinical applications and manufacturers for HIFU. Understand that thermal ablation with

TU-A-210-02: HIFU: Why Should a Radiation Oncology Physicist Pay Attention?

Energy Technology Data Exchange (ETDEWEB)

Schlesinger, D. [University of Virginia Health Systems (United States)

2015-06-15

High-intensity focused ultrasound (HIFU) has developed rapidly in recent years and is used frequently for clinical treatments in Asia and Europe with increasing clinical use and clinical trial activity in the US, making it an important medical technology with which the medical physics community must become familiar. Akin to medical devices that deliver treatments using ionizing radiation, HIFU relies on emitter geometry to non-invasively form a tight focus that can be used to affect diseased tissue while leaving healthy tissue intact. HIFU is unique in that it does not involve the use of ionizing radiation, it causes thermal necrosis in 100% of the treated tissue volume, and it has an immediate treatment effect. However, because it is an application of ultrasound energy, HIFU interacts strongly with tissue interfaces, which makes treatment planning challenging. In order to appreciate the advantages and disadvantages of HIFU as a thermal therapy, it is important to understand the underlying physics of ultrasound tissue interactions. The first lecture in the session will provide an overview of the physics of ultrasound wave propagation; the mechanism for the accumulation of heat in soft-tissue; image-guidance modalities including temperature monitoring; current clinical applications and commercial devices; active clinical trials; alternate mechanisms of action (future of FUS). The second part of the session will compare HIFU to existing ionization radiation techniques. The difficulties in defining a clear concept of absorbed dose for HIFU will be discussed. Some of the technical challenges that HIFU faces will be described, with an emphasis on how the experience of radiation oncology physicists could benefit the field. Learning Objectives: Describe the basic physics and biology of HIFU, including treatment delivery and image guidance techniques. Summarize existing and emerging clinical applications and manufacturers for HIFU. Understand that thermal ablation with

Quantum field theory III. Gauge theory. A bridge between mathematicians and physicists

International Nuclear Information System (INIS)

Zeidler, Eberhard

2011-01-01

In this third volume of his modern introduction to quantum field theory, Eberhard Zeidler examines the mathematical and physical aspects of gauge theory as a principle tool for describing the four fundamental forces which act in the universe: gravitative, electromagnetic, weak interaction and strong interaction. Volume III concentrates on the classical aspects of gauge theory, describing the four fundamental forces by the curvature of appropriate fiber bundles. This must be supplemented by the crucial, but elusive quantization procedure. The book is arranged in four sections, devoted to realizing the universal principle force equals curvature: Part I: The Euclidean Manifold as a Paradigm Part II: Ariadne's Thread in Gauge Theory Part III: Einstein's Theory of Special Relativity Part IV: Ariadne's Thread in Cohomology For students of mathematics the book is designed to demonstrate that detailed knowledge of the physical background helps to reveal interesting interrelationships among diverse mathematical topics. Physics students will be exposed to a fairly advanced mathematics, beyond the level covered in the typical physics curriculum. Quantum Field Theory builds a bridge between mathematicians and physicists, based on challenging questions about the fundamental forces in the universe (macrocosmos), and in the world of elementary particles (microcosmos). (orig.)

A PICKSC Science Gateway for enabling the common plasma physicist to run kinetic software

Science.gov (United States)

Hu, Q.; Winjum, B. J.; Zonca, A.; Youn, C.; Tsung, F. S.; Mori, W. B.

2017-10-01

Computer simulations offer tremendous opportunities for studying plasmas, ranging from simulations for students that illuminate fundamental educational concepts to research-level simulations that advance scientific knowledge. Nevertheless, there is a significant hurdle to using simulation tools. Users must navigate codes and software libraries, determine how to wrangle output into meaningful plots, and oftentimes confront a significant cyberinfrastructure with powerful computational resources. Science gateways offer a Web-based environment to run simulations without needing to learn or manage the underlying software and computing cyberinfrastructure. We discuss our progress on creating a Science Gateway for the Particle-in-Cell and Kinetic Simulation Software Center that enables users to easily run and analyze kinetic simulations with our software. We envision that this technology could benefit a wide range of plasma physicists, both in the use of our simulation tools as well as in its adaptation for running other plasma simulation software. Supported by NSF under Grant ACI-1339893 and by the UCLA Institute for Digital Research and Education.

Physicists band together to support a new megaproject

International Nuclear Information System (INIS)

Flam, F.

1993-01-01

As the Superconducting Super Collider (SSC) flirts with death in the congressional budget process for a second year, another mammoth science project is coming to life. Just a few days after the House voted to kill the $10 billion particle accelerator last month, it approved next year's funding for a megaproject that is a little cheaper and a lot less familiar: a $2.7 billion nuclear reactor known as the Advanced Neutron Source (ANS), to be built at Tennessee's Oak Ridge National Laboratory as a national facility for probing materials with beams of neutrons. The project's success in the House is a sign that physicists can still make a case for big science-at least when the project has a broad scientific constituency and plausible links to national competitiveness. When the facility is completed in 2002, it will be the world's most powerful neutron source, delivering 10 times the flux of neutrons produced by its nearest competitor, at the Institute Lau-Langevin in Grenoble, France. For now, designs call for a reactor about one-tenth the size of a power reactor, says project director West. Fission in the reactor core will send out a steady stream of neutrons. Slowed by heavy water to little more than walking speed, the neutrons will be carried through guides that work like fiber optic cables-by reflecting the neutrons internally, like tennis balls ricocheting down a pipe-to experiments tens or hundreds of meters away. There the neutrons will probe the atomic-scale structure of materials in a way that depends on quantum mechanical quality. Like any subatomic particles, neutrons can be thought of as waves as well as particles. When they bombard matter, their wave nature comes into play. The slow neutrons from the ANS will have a wavelength about equal to the spacing between atoms in a typical solid, making the neutrons especially sensitive to atom-by-atom architecture

grid will help physicists' global hunt for particles Researchers have begun running experiments with the MidWest Tier 2 Center, one of five regional computing centers in the US.

CERN Multimedia

Ames, Ben

2006-01-01

"When physicists at Switzerland's CERN laboratory turn on their newsest particle collider in 2007, they will rely on computer scientists in Chicago and Indianapolis to help sift through the results using a worldwide supercomputing grid." (1/2 page)

Mathematical tools for physicists

International Nuclear Information System (INIS)

Trigg, G.L.

2005-01-01

Mathematical Tools for Physisists is a unique collection of 18 review articles, each one written by a renowned expert of its field. Their professional style will be beneficial for advanced students as well as for the scientist at work. The first may find a comprehensive introduction while the latter use it as a quick reference. Great attention was paid to ensuring fast access to the information, and each carefully reviewed article includes a glossary of terms and a guide to further reading. The contributions range from fundamental methods right up to the latest applications, including: - Algebraic Methods - Analytic Methods - Fourier and Other Mathematical Transforms - Fractal Geometry - Geometrical Methods - Green's Functions - Group Theory - Mathematical Modeling - Monte Carlo Methods - Numerical Methods - Perturbation Methods - Quantum Computation - Quantum Logic - Special Functions - Stochastic Processes - Symmetries and Conservation Laws - Topology - Variational Methods. (orig.)

Retelling the educational pathways of Black women physicists: Stories of experiencing and overcoming obstacles in life

Science.gov (United States)

Mensah, Felicia

This is an empirical study on the underrepresentation of people of color in scientific careers. Grounded in critical race theory, the paper examines the lived experiences of six Black women physicists and addresses obstacles faced in their career paths and strategies used to overcome these obstacles. Data for this study were collected through semi-structured interviews and coded for emergent themes. The findings reveal that college recruitment and funding were fundamental for these women to choose physics over other STEM fields. In addition, Black women experience unique challenges of socialization in STEM, particularly by exclusion of study groups. We suggest physics departments provide a more inclusive environment to support Black women in science. CAPES, the Fulbright Program, Comissão Fulbright Brasil, and the Office of Diversity at Teachers College, Columbia University.

75 FR 69639 - Procurement List; Proposed Addition

Science.gov (United States)

2010-11-15

... Graeber Street, March ARB, CA. NPA: ARC Riverside, Riverside, CA Contracting Activity: DEPT OF HOMELAND SECURITY, BUREAU OF CUSTOMS AND BORDER PROTECTION, WASHINGTON, DC. Barry S. Lineback, Director, Business...

The role of medical physicists in developing a generic research framework for the assessment of new radiation oncology technology and treatments in radiation oncology

International Nuclear Information System (INIS)

Grand, M.M.; Amin, R.; Cornes, D.A.; Duchesne, G.; Haworth, A.; Kron, T.; Burmeister, B.

2010-01-01

Full text: TROG Cancer Research has secured funding from the Australian Government Department of Health and Ageing to develop and pilot an evaluation framework for new radiation oncology technologies and treatments. Four site specific projects will be undertaken to test the framework including IMRT for nasopharynx, anal canal and post-prostatectomy and IGRT for prostate fiducial markers. Multidisciplinary Expert Groups that include medical physicists, have been appointed for each site specific project. Each project will collect data from at least ten treatment centres who have been credentialed. The Framework will have the capacity to gather information to substantiate the clinical efficacy and cost effectiveness of new technologies and treatments in radiation oncology. The framework will be tested by gathering data to evaluate the superiority of IMRT and lGRT over other treatments and economic analysis will examine the potential trade-off between efficiency and the clinical gains to a patient. It is anticipated that the outcome of this research will inform future funding decisions. The involvement of medical physicists has been central to development of the framework, protocol development and the credentialing process. (author)

Mercury levels assessment in hair of riverside inhabitants of the Tapajós River, Pará State, Amazon, Brazil: fish consumption as a possible route of exposure.

Science.gov (United States)

Faial, Kleber; Deus, Ricardo; Deus, Simonny; Neves, Ramiro; Jesus, Iracina; Santos, Elisabeth; Alves, Cláudio Nahum; Brasil, Davi

2015-04-01

The study present evaluated the levels of mercury (Hg) and methylmercury (MeHg) in hair samples of people from Barreiras community, riverside inhabitants of the Tapajós River (Pará, Brazil), an area impacted by clandestine gold mining, as well as we analyzed the levels of Hg and Se (selenium) in nine fish species (carnivores and non-carnivorous) from the Tapajós River, which stand out as the main species consumed by riverside inhabitants, to evaluate a relationship between frequency of fish consumption and Hg concentration, and also to evaluate possible mechanisms of fish protection (or non-protection) to Hg exposure by Se. Furthermore we analyze the water quality to evaluate the environmental trophic state, fact responsible by creating conditions that can potentiate the effects of toxic mercury. Concentrations of Hg and MeHg were analyzed in hair samples of 141 volunteers in different age band. Of those, 84.40% of samples present values above the threshold for biological tolerance, which is 6.00μgg(-1) of total Hg in hair. Total Hg, in men there was a variation of 2.07-24.93μgg(-1), while for women the variation was 4.84-27.02μgg(-1). Consequently, the level of MeHg in men presented a variation of 1.49-19.57μgg(-1), with an average of 11.68μgg(-1), while with women the variation was from 3.73 to 22.35μgg(-1), with an average of 10.38μgg(-1). In fish species, Hg concentrations in carnivorous species had an average of 0.66μgg(-1), higher than that permitted by current legislation, ranging from 0.30 to 0.98μgg(-1), while the non-carnivorous species have values below the recommended by the legislation averaging 0.09μgg(-1), ranging between 0.02 and 0.44μgg(-1). For Se in fish, show that among carnivores, the contents of Se ranged between 0.18 and 0.54μgg(-1) with a mean of 0.34μgg(-1), while for non-carnivores these values were of the order of 0.16-0.56μgg(-1), with an average of 0.32μgg(-1). In surface water quality variables at the sampling points

Quantum field theory III. Gauge theory. A bridge between mathematicians and physicists

Energy Technology Data Exchange (ETDEWEB)

Zeidler, Eberhard [Max Planck Institute for Mathematics in the Sciences, Leipzig (Germany)

2011-07-01

In this third volume of his modern introduction to quantum field theory, Eberhard Zeidler examines the mathematical and physical aspects of gauge theory as a principle tool for describing the four fundamental forces which act in the universe: gravitative, electromagnetic, weak interaction and strong interaction. Volume III concentrates on the classical aspects of gauge theory, describing the four fundamental forces by the curvature of appropriate fiber bundles. This must be supplemented by the crucial, but elusive quantization procedure. The book is arranged in four sections, devoted to realizing the universal principle force equals curvature: Part I: The Euclidean Manifold as a Paradigm Part II: Ariadne's Thread in Gauge Theory Part III: Einstein's Theory of Special Relativity Part IV: Ariadne's Thread in Cohomology For students of mathematics the book is designed to demonstrate that detailed knowledge of the physical background helps to reveal interesting interrelationships among diverse mathematical topics. Physics students will be exposed to a fairly advanced mathematics, beyond the level covered in the typical physics curriculum. Quantum Field Theory builds a bridge between mathematicians and physicists, based on challenging questions about the fundamental forces in the universe (macrocosmos), and in the world of elementary particles (microcosmos). (orig.)

A Physicist in the Corridors of Power: P. M. S. Blackett's Opposition to Atomic Weapons Following the War

Science.gov (United States)

Nye, M. J.

1999-06-01

. Blackett had been a naval officer during the First World War, a veteran of Ernest Rutherford's Cavendish Laboratory and head of the physics department at Manchester in the interwar years, and he was a founder of operational research during the Second World War. Vilified in the British and American press in the 1940s and 1950s, he continued to contest prevailing nuclear weapons strategy, finding a more favorable reception for his arguments by the early 1960s. This paper examines the publication and reception of Blackett's views on atomic weapons, analyzing the risks to a physicist who writes about a subject other than physics, as well as the circumstances that might compel one to do so.

29th November 2011 - Czech Parliament Members of the Social Committee of the Lower Chamber visiting CERN permanent exhibition Microcosm and ATLAS visitor centre with Senior Czech Physicist and ILO I. Lehraus.

CERN Multimedia

Jean-Claude Gadmer

2011-01-01

29th November 2011 - Czech Parliament Members of the Social Committee of the Lower Chamber visiting CERN permanent exhibition Microcosm and ATLAS visitor centre with Senior Czech Physicist and ILO I. Lehraus.

Dose reduction in diagnostic radiology. Proceedings of the Hospital Physicists' Association meeting on 8th December 1983 at Birbeck College, London

International Nuclear Information System (INIS)

Brennen, S.E.; Putney, R.G.

1984-01-01

Nine chapters review the Proceedings of the Hospital Physicists' Association Meeting held in London in 1983 on 'Dose Reduction in Diagnostic Radiology'. Among the topics discussed were the balance between dose reduction and image quality, various procedures and techniques for keeping the dose to the patient to a minimum including the use of K-edge filtration and rare-earth intensifying screens, equipment for assessing the area exposure product in patients and the balance between radiation risk and benefit from radiographic examinations. All nine chapters are indexed separately. (U.K.)

Physics in Industry: A Case Study

Science.gov (United States)

Pratt-Ferguson, Ben

2007-10-01

Often ignored and sometimes even considered ``black sheep'' by the university & government-lab physicists, many industrial physicists continue making valuable scientific contributions in diverse areas, from computer science to aero and thermo-dynamics, communications, mathematics, engineering, and simulation, to name a few. This talk will focus on what industrial physicists do, what preparations are beneficial to obtaining a first industrial job, and what the business environment is like for physicists. The case study will be that of the author, starting with undergraduate and graduate studies and continuing on to jobs in industry.

Nuclear Medical Science Officers: Army Health Physicists Serving and Defending Their Country Around the Globe

Science.gov (United States)

Melanson, Mark; Bosley, William; Santiago, Jodi; Hamilton, Daniel

2010-02-01

Tracing their distinguished history back to the Manhattan Project that developed the world's first atomic bomb, the Nuclear Medical Science Officers are the Army's experts on radiation and its health effects. Serving around the globe, these commissioned Army officers serve as military health physicists that ensure the protection of Soldiers and those they defend against all sources of radiation, military and civilian. This poster will highlight the various roles and responsibilities that Nuclear Medical Science Officers fill in defense of the Nation. Areas where these officers serve include medical health physics, deployment health physics, homeland defense, emergency response, radiation dosimetry, radiation research and training, along with support to the Army's corporate radiation safety program and international collaborations. The poster will also share some of the unique military sources of radiation such as depleted uranium, which is used as an anti-armor munition and in armor plating because of its unique metallurgic properties. )

Jerome Lewis Duggan: A Nuclear Physicist and a Well-Known, Six-Decade Accelerator Application Conference (CAARI) Organizer

Science.gov (United States)

Del McDaniel, Floyd; Doyle, Barney L.

Jerry Duggan was an experimental MeV-accelerator-based nuclear and atomic physicist who, over the past few decades, played a key role in the important transition of this field from basic to applied physics. His fascination for and application of particle accelerators spanned almost 60 years, and led to important discoveries in the following fields: accelerator-based analysis (accelerator mass spectrometry, ion beam techniques, nuclear-based analysis, nuclear microprobes, neutron techniques); accelerator facilities, stewardship, and technology development; accelerator applications (industrial, medical, security and defense, and teaching with accelerators); applied research with accelerators (advanced synthesis and modification, radiation effects, nanosciences and technology); physics research (atomic and molecular physics, and nuclear physics); and many other areas and applications. Here we describe Jerry’s physics education at the University of North Texas (B. S. and M. S.) and Louisiana State University (Ph.D.). We also discuss his research at UNT, LSU, and Oak Ridge National Laboratory, his involvement with the industrial aspects of accelerators, and his impact on many graduate students, colleagues at UNT and other universities, national laboratories, and industry and acquaintances around the world. Along the way, we found it hard not to also talk about his love of family, sports, fishing, and other recreational activities. While these were significant accomplishments in his life, Jerry will be most remembered for his insight in starting and his industry in maintaining and growing what became one of the most diverse accelerator conferences in the world — the International Conference on the Application of Accelerators in Research and Industry, or what we all know as CAARI. Through this conference, which he ran almost single-handed for decades, Jerry came to know, and became well known by, literally thousands of atomic and nuclear physicists, accelerator

The combined use of dynamic factor analysis and wavelet analysis to evaluate latent factors controlling complex groundwater level fluctuations in a riverside alluvial aquifer

Science.gov (United States)

Oh, Yun-Yeong; Yun, Seong-Taek; Yu, Soonyoung; Hamm, Se-Yeong

2017-12-01

To identify and quantitatively evaluate complex latent factors controlling groundwater level (GWL) fluctuations in a riverside alluvial aquifer influenced by barrage construction, we developed the combined use of dynamic factor analysis (DFA) and wavelet analysis (WA). Time series data of GWL, river water level and precipitation were collected for 3 years (July 2012 to June 2015) from an alluvial aquifer underneath an agricultural area of the Nakdong river basin, South Korea. Based on the wavelet coefficients of the final approximation, the GWL data was clustered into three groups (WCG1 to WCG3). Two dynamic factors (DFs) were then extracted using DFA for each group; thus, six major factors were extracted. Next, the time-frequency variability of the extracted DFs was examined using multiresolution cross-correlation analysis (MRCCA) with the following steps: 1) major driving forces and their scales in GWL fluctuations were identified by comparing maximum correlation coefficients (rmax) between DFs and the GWL time series and 2) the results were supplemented using the wavelet transformed coherence (WTC) analysis between DFs and the hydrological time series. Finally, relative contributions of six major DFs to the GWL fluctuations could be quantitatively assessed by calculating the effective dynamic efficiency (Def). The characteristics and relevant process of the identified six DFs are: 1) WCG1DF4,1 as an indicative of seasonal agricultural pumping (scales = 64-128 days; rmax = 0.68-0.89; Def ≤ 23.1%); 2) WCG1DF4,4 representing the cycle of regional groundwater recharge (scales = 64-128 days; rmax = 0.98-1.00; Def ≤ 11.1%); 3) WCG2DF4,1 indicating the complex interaction between the episodes of precipitation and direct runoff (scales = 2-8 days; rmax = 0.82-0.91; Def ≤ 35.3%) and seasonal GW-RW interaction (scales = 64-128 days; rmax = 0.76-0.91; Def ≤ 14.2%); 4) WCG2DF4,4 reflecting the complex effects of seasonal pervasive pumping and the local recharge

Analytical results and sample locality map for rock, stream-sediment, and soil samples, Northern and Eastern Coloado Desert BLM Resource Area, Imperial, Riverside, and San Bernardino Counties, California

Science.gov (United States)

King, Harley D.; Chaffee, Maurice A.

2000-01-01

INTRODUCTION In 1996-1998 the U.S. Geological Survey (USGS) conducted a geochemical study of the Bureau of Land Management's (BLM) 5.5 million-acre Northern and Eastern Colorado Desert Resource Area (usually referred to as the NECD in this report), Imperial, Riverside, and San Bernardino Counties, southeastern California (figure 1). This study was done in support of the BLM's Coordinated Management Plan for the area. This report presents analytical data from this study. To provide comprehensive coverage of the NECD, we compiled and examined all available geochemical data, in digital form, from previous studies in the area, and made sample-site plots to aid in determining where sample-site coverage and analyses were sufficient, which samples should be re-analyzed, and where additional sampling was needed. Previous investigations conducted in parts of the current study area included the National Uranium Resource Evaluation (NURE) program studies of the Needles and Salton Sea 1? x 2? quadrangles; USGS studies of 12 BLM Wilderness Study Areas (WSAs) (Big Maria Mountains, Chemehuevi Mountains, Chuckwalla Mountains, Coxcomb Mountains, Mecca Hills, Orocopia Mountains, Palen-McCoy, Picacho Peak, Riverside Mountains, Sheephole Valley (also known as Sheep Hole/Cadiz), Turtle Mountains, and Whipple Mountains); and USGS studies in the Needles and El Centro 1? x 2? quadrangles done during the early 1990s as part of a project to identify the regional geochemistry of southern California. Areas where we did new sampling of rocks and stream sediments are mainly in the Chocolate Mountain Aerial Gunnery Range and in Joshua Tree National Park, which extends into the west-central part of the NECD, as shown in figure 1 and figure 2. This report contains analytical data for 132 rock samples and 1,245 stream-sediment samples collected by the USGS, and 362 stream-sediment samples and 189 soil samples collected during the NURE program. All samples are from the Northern and Eastern Colorado

French contribution to the super-heavy nuclei discovery

International Nuclear Information System (INIS)

Nifenecker, H.; Asghar, M.

1999-01-01

The research on super-heavy nuclei is a science in full operation for which the Berkeley physicist give proof of perseverance. The author wonders about the french absence in this domain. He recalls the strategical decisions concerning the research programs of the period and gives outline of the future with the interest of the ECR (Electronic Cyclotron Resonance) sources. (A.L.B.)

Visit of Peters Higgs at Point 2 ALICE Experiment - British theoretical physicist, He worked on proposals to unify the weak and the electromagnetic forces into a single electroweak theory, The Boson of Higgs.

CERN Multimedia

Mona Schweizer

2008-01-01

Visit of Peters Higgs at Point 2 ALICE Experiment - British theoretical physicist, He worked on proposals to unify the weak and the electromagnetic forces into a single electroweak theory, The Boson of Higgs.

Welcome to the Department of Toxic Substances Control

Science.gov (United States)

Fire Cleanup Helps Northern Californians Rebuild Report: Draft Evaluation and Analysis of Metal Shredding Facilities and Metal Shredder Wastes youtubebutton_2 twitter icon, button facebook icon button Metal Shredding Riverside Agricultural Park Riverside Neighborhood Evaluation Quemetco, Inc. Santa

Organisational aspects of the qualification and involvement of Medical Physicists in Radiology

International Nuclear Information System (INIS)

Vassileva, J.

2004-01-01

The specialist in Medical Physics has a key position in Quality Assurance process at diagnostic and therapeutic process and in Radiation Protection at medical use of ionizing radiation. The International Basic Safety Standards for protection against ionizing radiation of IAEA recommend and the EURATOM Directives 96/23 and 97/43 require qualified expert in medical physics to be involved in all the activities with ionizing radiation. In radiotherapeutic process this expert shall be closely involved and in nuclear medicine and diagnostic radiology this specialist shall be available. The International Organization for Medical Physics (IOMP), the European Federation of Organizations for Medical Physics (EFOMP) as well as a number of national organizations for Medical Physics in different countries have a clear concept for the qualification levels of the medical physics specialists, for the recognition scheme of their qualification and for the organization of the medical physics activities in a clinical environment. The legal requirements for medical physics expert's involvement in medicine is introducing in Bulgaria with the new Ordinance for Radiation Protection of Individuals at Medical Exposure that is expected to come into force in the beginning of next year. Some problems for discussion are submitted here finding necessary changes in the existing system for education and training of Medical physicists as well as in the organization of their involvement in health centers in the country. (author)

Proceedings of the school for young high energy physicists, September 1990 [held at the Rutherford Appleton Laboratory, Chilton (GB)

International Nuclear Information System (INIS)

Barlow, R.J.

1991-01-01

The 1990 School of Young High Energy Physicists took place in September and was attended by virtually all first year graduate students in experimental HEP at British Universities. The School consisted of two weeks of intensive lectures, written versions of which are published in this book. The four lecture courses; symmetries and gauge theories in Quantum Field Theory, Relativisitc quantum mechanics, QED and QeD; The Standard Model and Beyond and Selected Topics in Phenomenology of the Standard Model are all indexed separately. These were supplemented by problems and tutorials to give a thorough grounding in the Standard Model of elementary particle physics, putting understanding of the theory on a firm foundation for experimental investigations. (author)

The Microtron MT-25 facility in Cuba. A contribution to the regional cooperation

International Nuclear Information System (INIS)

Perez, G.; Guibert, R.; Zuniga, J.F.; Guzman, F.; Montero, M.E.; Rizo, O.D.; Ciminos, L.

2000-01-01

One of the main difficulties to develop nuclear application research is the lack of nuclear facilities. Different approaches and initiatives have been raised looking for more comprehensive exchanges. However, it is still necessary to strengthen regional cooperation in nuclear applications, in particular in the common use of accelerators and other nuclear facilities, based on a cooperative scheme in which each country contributes with its own facilities. The Microtron MT-25 Project in Cuba is proposed to deal with this kind of scheme. The construction of an electron accelerator up to 25 MeV, called Microtron MT-25, was finished in 1990 for Cuba, as a result of the collaboration of Cuban and Russian physicists in the Joint Institute for Nuclear Research in Dubna, Russia. The Microtron MT-25 is an electron cycle-accelerator which allows electrons, gamma rays and neutrons to be obtained. The principal characteristics of the accelerator and radiation are described in the paper. The Microtron-Havana facility is conceived for fundamental and applied research. The fundamental research topics of interest are photonuclear reaction studies, Nuclear Astrophysics reactions and photofission reactions. The applied research program involved in the Microtron Project consists of Gamma and Neutron Activation Analysis applied in Environment, Agriculture, Geology, Minerals, as well as materials science. Production of radioactive sources and radioisotopes. Medical and biological applications.To develop the research program, interested institutions need to form a User's Club. It will be formed, among others, by Brazil (Institute of Physics, Univ. Sao Paulo, Linear Accelerator Lab.), Argentina (Tandem Accelerator, called Tandar), Mexico (Institute of Physic, UNAM, Experimental Physics Department), Cuba (ISCTN, CEADEN, Isotopes Center, and IMRE from Havana University.) The participation of the members in the program exploitation will be based on projects in which the financial matters and

Contributions of basic nuclear physics to the nuclear waste management

Science.gov (United States)

Flocard, Hubert

2002-04-01

Nuclear fission is presently a contested method of electricity production. The issue of nuclear waste management stands out among the reasons why. On the other hand, the nuclear industry has demonstrated its capacity to reliably generate cheap electricity while producing negligible amounts of greenhouse gases. These assets explain why this form of energy is still considered among the options for the long term production of electricity at least in developed countries. However, in order to tackle the still not adequately answered question of the waste, new schemes may have to be considered. Among those which have been advanced recently, the less polluting cycles such as those based on Thorium rather than Uranium and/or the transmutation of the minor actinides and some long lived fission products of the present cycle have been actively investigated. In both cases, it turns that the basic knowledge underlying these methods is either missing or incomplete. This situation opens a window of opportunity for useful contributions from basic nuclear physicists. This article describes some of them and presents the ongoing activities as well as some of the projects put forth for the short or medium term. .

Quantum field theory

International Nuclear Information System (INIS)

Mancini, F.

1986-01-01

Theoretical physicists, coming from different countries, working on different areas, gathered at Positano: the Proceedings contain all the lectures delivered as well as contributed papers. Many areas of physics are represented, elementary particles in high energy physics, quantum relativity, quantum geometry, condensed matter physics, statistical mechanics; but all works are concerned with the use of the methods of quantum field theory. The first motivation of the meeting was to pay homage to a great physicist and a great friend; it was also an occasion in which theoretical physicists got together to discuss and to compare results in different fields. The meeting was very intimate; the relaxed atmosphere allowed constructive discussions and contributed to a positive exchange of ideas. (orig.)

Physics and mathematics of strings memorial volume for Vadim Knizhnik

CERN Document Server

Polyakov, A M; Brink, Lars

1990-01-01

Vadim Knizhnik was one of the most promising theoretical physicists in the world. Unfortunately, he passed away at the very young age of 25 years. This memorial volume is to honor his contributions in Theoretical Physics. This is perhaps one of the most important collections of articles on the theoretical developments in String Theory, Conformal Field Theory and related topics. It consists of contributions from world-renowned physicists who have met Vadim Knizhnik personally and whom the late Knizhnik really respected. The contributions are systematic and pedagogical in format.

A health and safety primer for the practicing health physicist

International Nuclear Information System (INIS)

Hylko, J.M.; Bradshaw, M.C.; Ross, L.E.; Brennan, M.J.; Pomatto, C.B.; Shelly, F.C.

1996-01-01

Environmental restoration (ER) is the process of removing a facility from service, the demolition of structures the identification and disposal of all hazardous and radioactive wastes, the decontamination of equipment and materials, and the restoration of a site for unrestricted use. The number of ER projects encompassing hazardous, industrial, and radiological conditions is expected to increase in response to various program requirements or mission changes. As a result, the practicing health physicist (HP) may have to address unique health and safety (H and S) issues beyond those of performing routine radiological activities. These unique H and S issues could include, but are not limited to the razing of buildings, the removal of radioactive materials and hazardous chemicals, below-grade excavation, confined space entry, storing flammable or combustible liquids, monitoring exposure to hazardous substances, contacting energized systems (e.g., electricity, hydraulics), noise abatement, the nullification of manufacturer warranties, and the operation and movement of heavy equipment. The purpose of this paper is to educate the practicing HP about these issues by reviewing specific regulations governing all H and S activities, and to provide an example of a site-specific H and S primer (e.g., Health and Safety Plan [HASP]). This primer advices the practicing HP about sound H and S principles, furnishes basic strategies for performing a hazard assessment/job safety analysis (HA/JSA) that can be applied to any ER project, and describes various engineering and administrative controls to mitigate hazardous exposures to ER personnel. In addition, 26 inspection checklist topics are available from the primary author to evaluate the adequacy of the engineering and administrative controls, or to necessitate the use of personal protective equipment (PPE) thereby mitigating the corresponding hazard. (author)

SU-F-P-33: Combining Research and Professional Practice in the Clinical Setting: A Medical Physicist Personal Experience

International Nuclear Information System (INIS)

Lopez-Tarjuelo, J

2016-01-01

Purpose: To initiate a discussion on the current and evolving role of Medical Physicists based on author’s professional and research experience in patient safety and quality control. Methods: Several professionals of the departments of Medical Physics and Radiation Oncology, chiefly devoted to clinical tasks, began a research program on patient safety and quality control in a framework provided by the implementation of intraoperative radiotherapy (IORT). We performed studies on virtual simulation for IORT, in vivo dosimetry, failure mode and effect analysis (FMEA), statistical process control (SPC), and receiver operating characteristics of dosimetric equipment. This was done with the support of our research foundation and different grants while continuing with our departmental clinical routine involving about 1600 annual treatments with two linacs and different brachytherapy techniques. Results: We published 5 papers in international journals in the last two years. This author conducted a doctoral research which resulted in a dissertation in 2015. The extra time spent after treatments was essential to succeed. Funding and support achieved via our foundation played a crucial role; but this would have not been possible without punctual external mentoring and partnership. FMEA conclusions were able to be implemented only with staff commitment; however, conclusions concerning equipment cannot be easily communicated to manufacturers. These tasks required extra training in the appropriated methods. Conclusion: Research needed the support of a dedicated foundation, which would have been very difficult to obtain with the sole participation of our departments. FMEA and SPC results may need engagement of staff and manufacturers, respectively, hard to achieve without strong recommendations or even a regulatory framework. All these fields need evolution of Medical Physicists’ roles and additional training. Devotion to both clinical tasks and research could be unfeasible

SU-F-P-33: Combining Research and Professional Practice in the Clinical Setting: A Medical Physicist Personal Experience

Energy Technology Data Exchange (ETDEWEB)

Lopez-Tarjuelo, J [Consorcio Hospitalario Provincial de Castello, Castello de la Plana (Spain)

2016-06-15

Purpose: To initiate a discussion on the current and evolving role of Medical Physicists based on author’s professional and research experience in patient safety and quality control. Methods: Several professionals of the departments of Medical Physics and Radiation Oncology, chiefly devoted to clinical tasks, began a research program on patient safety and quality control in a framework provided by the implementation of intraoperative radiotherapy (IORT). We performed studies on virtual simulation for IORT, in vivo dosimetry, failure mode and effect analysis (FMEA), statistical process control (SPC), and receiver operating characteristics of dosimetric equipment. This was done with the support of our research foundation and different grants while continuing with our departmental clinical routine involving about 1600 annual treatments with two linacs and different brachytherapy techniques. Results: We published 5 papers in international journals in the last two years. This author conducted a doctoral research which resulted in a dissertation in 2015. The extra time spent after treatments was essential to succeed. Funding and support achieved via our foundation played a crucial role; but this would have not been possible without punctual external mentoring and partnership. FMEA conclusions were able to be implemented only with staff commitment; however, conclusions concerning equipment cannot be easily communicated to manufacturers. These tasks required extra training in the appropriated methods. Conclusion: Research needed the support of a dedicated foundation, which would have been very difficult to obtain with the sole participation of our departments. FMEA and SPC results may need engagement of staff and manufacturers, respectively, hard to achieve without strong recommendations or even a regulatory framework. All these fields need evolution of Medical Physicists’ roles and additional training. Devotion to both clinical tasks and research could be unfeasible

Qualification of niobium materials for superconducting radio frequency cavity applications: View of a condensed matter physicist

International Nuclear Information System (INIS)

Roy, S. B.; Myneni, G. R.

2015-01-01

We address the issue of qualifications of the niobium materials to be used for superconducting radio frequency (SCRF) cavity fabrications, from the point of view of a condensed matter physicist/materials scientist. We focus on the particular materials properties of niobium required for the functioning a SCRF cavity, and how to optimize the same properties for the best SCRF cavity performance in a reproducible manner. In this way the niobium materials will not necessarily be characterized by their purity alone, but in terms of those materials properties, which will define the limit of the SCRF cavity performance and also other related material properties, which will help to sustain this best SCRF cavity performance. Furthermore we point out the need of standardization of the post fabrication processing of the niobium-SCRF cavities, which does not impair the optimized superconducting and thermal properties of the starting niobium-materials required for the reproducible performance of the SCRF cavities according to the design values

Qualification of niobium materials for superconducting radio frequency cavity applications: View of a condensed matter physicist

Science.gov (United States)

Roy, S. B.; Myneni, G. R.

2015-12-01

We address the issue of qualifications of the niobium materials to be used for superconducting radio frequency (SCRF) cavity fabrications, from the point of view of a condensed matter physicist/materials scientist. We focus on the particular materials properties of niobium required for the functioning a SCRF cavity, and how to optimize the same properties for the best SCRF cavity performance in a reproducible manner. In this way the niobium materials will not necessarily be characterized by their purity alone, but in terms of those materials properties, which will define the limit of the SCRF cavity performance and also other related material properties, which will help to sustain this best SCRF cavity performance. Furthermore we point out the need of standardization of the post fabrication processing of the niobium-SCRF cavities, which does not impair the optimized superconducting and thermal properties of the starting niobium-materials required for the reproducible performance of the SCRF cavities according to the design values.

Qualification of niobium materials for superconducting radio frequency cavity applications: View of a condensed matter physicist

Energy Technology Data Exchange (ETDEWEB)

Roy, S. B., E-mail: sbroy@rrcat.gov.in [Magnetic & Superconducting Materials Section, Materials & Advanced Accelerator Sciences Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India); Myneni, G. R., E-mail: rao@jlab.org [Thomas Jefferson National Accelerator Facility, Newport News, Virginia (United States)

2015-12-04

We address the issue of qualifications of the niobium materials to be used for superconducting radio frequency (SCRF) cavity fabrications, from the point of view of a condensed matter physicist/materials scientist. We focus on the particular materials properties of niobium required for the functioning a SCRF cavity, and how to optimize the same properties for the best SCRF cavity performance in a reproducible manner. In this way the niobium materials will not necessarily be characterized by their purity alone, but in terms of those materials properties, which will define the limit of the SCRF cavity performance and also other related material properties, which will help to sustain this best SCRF cavity performance. Furthermore we point out the need of standardization of the post fabrication processing of the niobium-SCRF cavities, which does not impair the optimized superconducting and thermal properties of the starting niobium-materials required for the reproducible performance of the SCRF cavities according to the design values.

CERN Library and Art@CMS present Artist and Painter Xavier Cortada and CMS Physicist Pete Markowitz

CERN Document Server

CERN Library

2013-01-01

Xavier Cortada is an American artist and painter, and an artist in residence at Florida International University (FIU) College of Architecture and the Arts who also specializes in participatory art projects. His work includes art installations at the Earth’s poles to generate awareness about climate change, child welfare murals in Bolivia and peace murals in Cyprus. Xavier will be in conversation with CMS physicist Pete Markowitz, also from FIU, to discuss the participatory art piece which they developed together. The piece will be showcased in the CMS detector hall on Thursday 11 April during the experiment’s conference week. The piece promises to "engage 300 scientists from around the world in a performance art piece that transforms them into the very subatomic particles they research". It is the first piece by Art@CMS, a new project inspired by the Arts@CERN programme. Discover more about how this new piece was developed and more about Xavier’s ...

76 FR 47143 - Approval for Manufacturing Authority, Foreign-Trade Zone 153; Abbott Cardiovascular Systems, Inc...

Science.gov (United States)

2011-08-04

... Authority, Foreign-Trade Zone 153; Abbott Cardiovascular Systems, Inc., (Cardiovascular Devices), Riverside... of Abbott Cardiovascular Systems, Inc., within Sites 11-13 of FTZ 153, located in Riverside County... behalf of Abbott Cardiovascular Systems, Inc., as described in the application and Federal Register...

Educational pathways of Black women physicists: Stories of experiencing and overcoming obstacles in life

Science.gov (United States)

Rosa, Katemari

2017-01-01

This talk presents an empirical study on the underrepresentation of people of color in scientific careers. Grounded in Critical Race Theory, the presentation examines the lived experiences of six Black women physicists in the United States, addresses obstacles faced in their career paths, and strategies used to overcome these obstacles. Data for this study were collected through semi-structured interviews and coded for emergent themes, which are invitation to engage in science, communities of science practices, and isolation in the academy. The findings reveal that college recruitment and funding were fundamental for these women to choose Physics over other STEM fields. The analysis shows Physics can be a hostile environment for these women. In addition, Black women experience unique challenges of socialization in Physics, particularly by exclusion of study groups. In this talk, suggestions will be presented to make Physics departments a more inclusive space to support Black women in science. This presentation is based on work supported by the Brazilian government through CAPES (BEX1907-07-7), the Fulbright Program, Comissño Fulbright Brasil, and the Office of Diversity at Teachers College, Columbia University.

Signature of the CERN GoldenBook at CERN by Peters Higgs British theoretical physicist - He worked on proposals to unify the weak and the electromagnetic forces into a single electroweak theory, The Boson of Higgs.

CERN Multimedia

Claudia Marcelloni

2008-01-01

Signature of the CERN GoldenBook at CERN by Peters Higgs British theoretical physicist - He worked on proposals to unify the weak and the electromagnetic forces into a single electroweak theory, The Boson of Higgs.

Methods of fluid dynamics in nuclear physics

International Nuclear Information System (INIS)

Zweifel, P.F.

1984-01-01

The author summaries the contributions to an interdisciplinary workshop attended by physicist and mathematicians at the University of Catania in Italy. The purpose of the workshop was to bring together physicists and mathematicians with an interest in fluid mechanical calculations. Several applications to nuclear structure and heavy ion collisions are outlined

MO-C-BRB-02: The Physicists’ Leadership Role in Academic Radiology: The Chair’s Perspective

International Nuclear Information System (INIS)

Arenson, R.

2016-01-01

With the profound changes currently occurring in medicine, the role of the medical physicist cannot stagnate, but must evolve to meet the challenges and opportunities that are presented. Medical physicists must understand these changes and establish themselves not only as relevant but as leaders in this new environment. We must increase our presence in clinical settings such as tumor boards, patient rounds, and the development of new diagnosis, imaging, and treatment techniques. By establishing ourselves as competent scientists, we can and must participate in the development of technologies through research, teaching, and clinical implementation. As medical physicists we must define our roles and value to our physician colleagues, patients, referring physicians, and senior administrators. We cannot afford to be viewed solely as quality assurance technologists, but need to move forward in step with medical and practice advances, becoming recognized as having a leadership role in providing quality research, technological development, and quality patient care. In this session, four leaders in medical research and healthcare will discuss their observations on how medical physicists have contributed to advancements in healthcare and opportunities to continue leadership in providing quality medicine through the applications of physics to research, education, and clinical practice. Learning Objectives: Understand the changes in the healthcare environment and how medical physicists can contribute to improving patient care. Learn how medical physicists are currently leading research efforts to improve clinical imaging and diagnosis. Understand the role of medical physicists in developing new technology and leading its translation into clinical care.

MO-C-BRB-02: The Physicists’ Leadership Role in Academic Radiology: The Chair’s Perspective

Energy Technology Data Exchange (ETDEWEB)

Arenson, R. [UCSF School of Medicine (United States)

2016-06-15

With the profound changes currently occurring in medicine, the role of the medical physicist cannot stagnate, but must evolve to meet the challenges and opportunities that are presented. Medical physicists must understand these changes and establish themselves not only as relevant but as leaders in this new environment. We must increase our presence in clinical settings such as tumor boards, patient rounds, and the development of new diagnosis, imaging, and treatment techniques. By establishing ourselves as competent scientists, we can and must participate in the development of technologies through research, teaching, and clinical implementation. As medical physicists we must define our roles and value to our physician colleagues, patients, referring physicians, and senior administrators. We cannot afford to be viewed solely as quality assurance technologists, but need to move forward in step with medical and practice advances, becoming recognized as having a leadership role in providing quality research, technological development, and quality patient care. In this session, four leaders in medical research and healthcare will discuss their observations on how medical physicists have contributed to advancements in healthcare and opportunities to continue leadership in providing quality medicine through the applications of physics to research, education, and clinical practice. Learning Objectives: Understand the changes in the healthcare environment and how medical physicists can contribute to improving patient care. Learn how medical physicists are currently leading research efforts to improve clinical imaging and diagnosis. Understand the role of medical physicists in developing new technology and leading its translation into clinical care.

The Many Worlds of Leo Szilard: Physicist, Peacemaker, Provocateur

Science.gov (United States)

Lanouette, William

2014-03-01

Best known for being the first to conceive and patent the nuclear chain reaction in the 1930s, Leo Szilard should also be remembered for other insights in both physics and biology, and for historical initiatives to control the A-bomb he helped create. In physics, Szilard applied entropy to data in a seminal 1929 paper that laid the basis for ``information theory.'' Szilard co-designed an electromagnetic refrigerator pump with Einstein in the 1920s, in 1939 he co-designed the first nuclear reactor with Enrico Fermi, and he later thought up and named the nuclear ``breeder'' reactor. Biologist Francois Jacob called Szilard an ``intellectual bumblebee'' for the many novel ideas he shared, including one that earned Jacob and others the Nobel Prize. James D. Watson said that for intellectual stimulation he liked being around Szilard because ``Leo got excited about something before it was true.'' A political activist, Szilard proposed and drafted the 1939 letter Einstein sent to President Franklin Roosevelt that warned of German A-bomb work and led to the Manhattan Project - where Szilard was ``Chief Physicist.'' Yet Szilard then worked tirelessly to curb nuclear weapons, organizing a scientists' petition to President Truman and lobbying Congress for civilian control of the atom. Szilard loved dreaming up new institutions. He helped to create the Pugwash Conferences on Science and World Affairs, and founded the Council for a Livable World - the first political action committee for arms control. In biology, Szilard proposed the European Molecular Biology Organization modeled on CERN, and helped create the Salk Institute for Biological Studies, where he was one of the first fellows. Shy, witty, and eccentric, Szilard wrote a political satire in 1960 that predicted when the US-Soviet nuclear arms race would end in the late 1980s. Another satire, ``My Trial as a War Criminal'' about scientists' responsibilities for weapons of mass destruction, is credited with prompting

Fish assemblages in borrow-pit lakes of the Lower Mississippi River

Science.gov (United States)

Miranda, Leandro E.; Killgore, K. J.; Hoover, J.J.

2013-01-01

Borrow-pit lakes encompass about a third of the lentic water habitats (by area) in the active floodplain of the Lower Mississippi River, yet little is known about their fish assemblages. We investigated whether fish assemblages supported by borrow-pit lakes resembled those in oxbow lakes to help place the ecological relevance of borrow-pit lakes in context with that of natural floodplain lakes. In all, we collected 75 fish species, including 65 species in eight borrow-pit lakes, 52 species in four riverside oxbow lakes, and 44 species in eight landside oxbow lakes. Significant differences in several species richness metrics were evident between borrow-pit lakes and landside oxbow lakes but not between borrow-pit lakes and riverside oxbow lakes. All three lake types differed in fish assemblage composition. Borrow-pit lakes and riverside oxbow lakes tended to include a greater representation of fish species that require access to diverse environments, including lentic, lotic, and palustrine habitats; fish assemblages in landside oxbow lakes included a higher representation of lacustrine species. None of the fish species collected in borrow-pit lakes was federally listed as threatened or endangered, but several were listed as species of special concern by state governments in the region, suggesting that borrow-pit lakes provide habitat for sensitive riverine and wetland fish species. Differences in fish assemblages among borrow-pit lakes were linked to engineered morphologic features, suggesting that diversity in engineering can contribute to diversity in fish assemblages; however, more research is needed to match engineering designs with fish assemblage structures that best meet conservation needs.

The faith of a physicist reflections of a bottom-up thinker : the Gifford lectures for 1993-4

CERN Document Server

Polkinghorne, John C

1994-01-01

Is it possible to think like a scientist and yet have the faith of a Christian? Although many Westerners might say no, there are also many critically minded individuals who entertain what John Polkinghorne calls a "wistful wariness" toward religion--they feel unable to accept religion on rational grounds yet cannot dismiss it completely. Polkinghorne, both a particle physicist and Anglican priest, here explores just what rational grounds there could be for Christian beliefs, maintaining that the quest for motivated understanding is a concern shared by scientists and religious thinkers alike. Anyone who assumes that religion is based on unquestioning certainties, or that it need not take into account empirical knowledge, will be challenged by Polkinghorne's bottom-up examination of Christian beliefs about events ranging from creation to the resurrection. The author organizes his inquiry around the Nicene Creed, an early statement that continues to summarize Christian beliefs. He applies to each of its tenets ...

Medical Physics Practice Guidelines - the AAPM's minimum practice recommendations for medical physicists.

Science.gov (United States)

Mills, Michael D; Chan, Maria F; Prisciandaro, Joann I; Shepard, Jeff; Halvorsen, Per H

2013-11-04

The AAPM has long advocated a consistent level of medical physics practice, and has published many recommendations and position statements toward that goal, such as Science Council Task Group reports related to calibration and quality assurance, Education Council and Professional Council Task Group reports related to education, training, and peer review, and Board-approved Position Statements related to the Scope of Practice, physicist qualifications, and other aspects of medical physics practice. Despite these concerted and enduring efforts, the profession does not have clear and concise statements of the acceptable practice guidelines for routine clinical medical physics. As accreditation of clinical practices becomes more common, Medical Physics Practice Guidelines (MPPGs) will be crucial to ensuring a consistent benchmark for accreditation programs. To this end, the AAPM has recently endorsed the development of MPPGs, which may be generated in collaboration with other professional societies. The MPPGs are intended to be freely available to the general public. Accrediting organizations, regulatory agencies, and legislators will be encouraged to reference these MPPGs when defining their respective requirements. MPPGs are intended to provide the medical community with a clear description of the minimum level of medical physics support that the AAPM would consider prudent in clinical practice settings. Support includes, but is not limited to, staffing, equipment, machine access, and training. These MPPGs are not designed to replace extensive Task Group reports or review articles, but rather to describe the recommended minimum level of medical physics support for specific clinical services. This article has described the purpose, scope, and process for the development of MPPGs.

12th September 2011 - Undersecretary for Foreign Affairs F. Schmidt Ariztía in the ATLAS visitor centre with ATLAS Collaboration Former Spokesperson P. Jenni, Adviser for Chile J. Salicio Diez and Senior Physicist J. Mikenberg.

CERN Multimedia

Maximilien Brice

2011-01-01

12th September 2011 - Undersecretary for Foreign Affairs F. Schmidt Ariztía in the ATLAS visitor centre with ATLAS Collaboration Former Spokesperson P. Jenni, Adviser for Chile J. Salicio Diez and Senior Physicist J. Mikenberg.

Making theory: I. Producing physics and physicists in postwar America. II. Post-inflation reheating in an expanding universe

Science.gov (United States)

Kaiser, David Isaac

2000-11-01

This dissertation examines the reinvention of theoretical physics in the United States through pedagogical means after World War II. Physics graduate student enrollments ballooned immediately after the war. The unprecedented enrollments forced questions of procedures and standards for graduate training as never before. At the same time, the crush of numbers spurred an increased bureaucratization and, at least some American physicists feared, a different system of values than what had prevailed during the quieter interwar period. Out of these new bureaucratic and pedagogical developments, theoretical physics became a recognized specialty within American physics, surrounded by new ideas about what theory was for and how students should be trained to do it. Two case studies focus on developments within theoretical physics after the war, using pedagogy as a lens through which to understand the links between practices and practitioners. Within nuclear and particle physics, as Part II discusses, young graduate students and postdoctoral fellows puzzled over how to calculate with, and how to interpret, the simple line-drawings introduced by Richard Feynman in 1948. The number of distinct pictorial forms, calculational roles, and attributed meanings for the simple stick-figures quickly multiplied: rather than commanding a single use or interpretation, the diagrams came to be used for a wide variety of distinct tasks. Some theorists clung to the diagrams even as they declared the original theoretical framework from which the diagrams had sprung to be ``sterile'' and ``dead.'' These young theorists drew the diagrams much the same way as Feynman had, yet read content into them which had no correlate in the older approaches. Part III uses pedagogy to make sense of a similar series of changes within the long-dormant field of gravitational physics. Einstein's gravitational field equations proved to be no more obvious or auto-interpreting than Feynman's diagrams had been

Contribution to the validation of the Apollo code library for thermal neutron reactors

International Nuclear Information System (INIS)

Tellier, H.; Van der Gucht, C.; Vanuxeem, J.

1988-03-01

The neutron nuclear data which are needed by reactor physicists to perform core calculation are brought together in the evaluated files. The files are processed to provide multigroup cross sections. The accuracy of the core calculations depends on the initial data which are sometimes not accurate enough. Therefore the reactor physicists carry out integral experiments. We show in this paper, how the use of these integral experiments and the application of the tendency research method can improve the accuracy of the neutron data. This technique was applied to the validation of the Apollo code library. For this purpose 60 buckling measurements (34 for uranium fuel multiplying media and 26 for plutonium fuel multiplying media) and 42 spent fuel analysis were used. Small modifications of the initial data are proposed. The final values are compared which recent recommended values of microscopic data and the agreement is good [fr

High energy physics

International Nuclear Information System (INIS)

Kernan, A.; Shen, B.C.; Ma, E.

1997-01-01

This proposal is for the continuation of the High Energy Physics program at the University of California at Riverside. In hadron collider physics the authors will complete their transition from experiment UA1 at CERN to the DZERO experiment at Fermilab. On experiment UA1 their effort will concentrate on data analysis at Riverside. At Fermilab they will coordinate the high voltage system for all detector elements. They will also carry out hardware/software development for the D0 muon detector. The TPC/Two-Gamma experiment has completed its present phase of data-taking after accumulating 160 pb - 1 of luminosity. The UC Riverside group will continue data and physics analysis and make minor hardware improvement for the high luminosity run. The UC Riverside group is participating in design and implementation of the data acquisition system for the OPAL experiment at LEP. Mechanical and electronics construction of the OPAL hadron calorimeter strip readout system is proceeding on schedule. Data analysis and Monte Carlo detector simulation efforts are proceeding in preparation for the first physics run when IEP operation comenses in fall 1989

Walther Gerlach (1889-1979) and his way to the successful experimental physicist until around 1925; Walther Gerlach (1889-1979) und sein Weg zum erfolgreichen Experimentalphysiker bis etwa 1925

Energy Technology Data Exchange (ETDEWEB)

Huber, Josef Georg

2014-12-15

Walther Gerlach (1889-1979) was born in Wiesbaden-Biebrich and studied physics at the Eberhard-Karls-Universitaet in Tuebingen, where he did his doctorate in February 1912. In this work, there is no room for a complete biography either as it would exceed the scope of this thesis. It is restricted to the first part of his life, which is treated in detail. The aim of this thesis is to understand Walther Gerlach's development into a successful physicist, to find out what influenced him and to identify his achievements during this period until 1925. To gain a greater insight into his personal development the circumstances in his family as well as the conditions regarding his education in school and university will be investigated. His way of dealing with friends and colleagues is analyzed and his approaches to physical problems discussed. The personality of the physicist Gerlach rather emerges from the sum of details observed and examples quoted. However, some events in his life can be named, which show that his achievements did not happen by chance but are connected to his career. This thesis ends more or less with the beginning of the year 1925, when Gerlach accepted the chair for physics in Tuebingen.

The night of the physicists. Heisenberg, Hahn, Weizsaecker, and the German bomb; Die Nacht der Physiker. Heisenberg, Hahn, Weizsaecker und die deutsche Bombe

Energy Technology Data Exchange (ETDEWEB)

Schirach, Richard von

2014-07-01

Finally the German atomic physicists around Heisenberg, von Weizsaecker, and Hahn worked on their ''uranium machine'' in a Swabian beer-cellar - and took themselves for the world elite of nuclear research. In imprisonment they heared from the dropping of the Hiroshima bomb - a shock. Richard von Schirach shows the hindered ''fathers of the German atomic bomb'' in close-up, their eagerness, their hybris, their true importance, and their attempts to give after the war a new interpretation of their own role. A book, which raises in the sense of Duerrenmatt the question for the responsibility of science.

York University atomic scientist contributes to new breakthrough in the production of antimatter

CERN Multimedia

2002-01-01

Physicists working in Europe, including Canada Research Chair in Atomic Physics at York University, Prof. Eric Hessels, have succeeded in capturing the first glimpse of the structure of antimatter. The ATRAP group of scientists at CERN have managed to examine the internal states of anti-hydrogen atoms (1/2 page).

TU-C-218-02: Effective Oncology Physics Education.

Science.gov (United States)

Burmeister, J; Coffey, C; Salehpour, M; Ibbott, G

2012-06-01

The education of medical physicists has historically been quite varied and medical physicists have entered the field through several pathways including specialized educational programs, postdoctoral fellowships, and on-the-job training. It is argued that the contributions of viewpoints from different branches of physics has contributed to the development of novel solutions and advances in radiation oncology. However, there also has been an effort recently to make graduate education of medical physicists more consistent and uniform, particularly for the preparation of clinically oriented therapy physicists. The trend towards a more systematic approach has been guided in part by the requirements for graduate program accreditation developed by CAMPEP and by the requirements for medical physicist certification by the ABR. At the same time, there has been criticism of this approach as being too confining and guiding graduates toward a career as technicians rather than independent thinkers. Educational programs have had to balance the requirements of accreditation and certification against the goal of preparing students for careers as independent researchers. Three speakers will describe the approaches taken by their graduate educational programs to meet the requirements of CAMPEP and adequately prepare graduates for certification by the ABR, while maintaining a commitment to providing a comprehensive education in medical physics. 1. Understand the requirements for graduate program accreditation 2. Understand the education and experience requirements for certification 3. Learn the approaches taken by several graduate programs to meet the requirements for accreditation and certification while providing a comprehensive education in medical physics. © 2012 American Association of Physicists in Medicine.

Summary of contribution to the ICANS-X panel discussion

International Nuclear Information System (INIS)

Dolling, G.

1989-01-01

The author's role on this panel was to represent that group of users who wish to measure S(Q→,ω) at specified, pre-selected values of Q→ and ω. Until now this kind of measurement has always been reasonably easy to do with a triple axis crystal spectrometer (TACS) at a continuous source of neutrons, and rather more difficult to do with a time-of-flight (TOF) machine at a pulsed source. Only those physicists who were extraordinarily hard-working and persistent managed to get any useful specific s(Q,ω) data, using TOF methods. The lazy physicist simply emigrated to a place where triple axis spectrometers were located, or where he could build new ones. It has not so far been feasible to use a conventional TACS at a pulsed neutron source because there is insufficient time-averaged intensity. The pulsed source user is obliged to use TOF methods, so naturally there has been much effort devoted to making it possible to do specific (Q,ω) measurements with a TOF spectrometer. One of the better examples along these lines if right here at Los Alamos-the Constant Q Spectrometer; PRISMA at ISIS is another excellent example. There are, however, significant limitations to the flexibility of these instruments. It seems likely that they will not be capable of supplanting the conventional TACS for a substantial body of fundamental research work

Telegramme sent on June 14 1956 from physicists Fred Reines and Clyde Cowan to Wolfgang Pauli announcing the detection, for the first time, of neutrinos. The Physics Nobel Prize in 1995 was awarded to Reines for this discovery.

CERN Document Server

Maximiliem Brice

2006-01-01

Telegramme sent on June 14 1956 from physicists Fred Reines and Clyde Cowan to Wolfgang Pauli announcing the detection, for the first time, of neutrinos. The Physics Nobel Prize in 1995 was awarded to Reines for this discovery.

14 December 2011 - Czech Republic Delegation to CERN Council and Finance Committees visiting ATLAS experimental area, LHC tunnel and ATLAS visitor centre with Former Collaboration Spokesperson P. Jenni, accompanied by Physicist R. Leitner and Swiss student A. Lister.

CERN Multimedia

Estelle Spirig

2011-01-01

14 December 2011 - Czech Republic Delegation to CERN Council and Finance Committees visiting ATLAS experimental area, LHC tunnel and ATLAS visitor centre with Former Collaboration Spokesperson P. Jenni, accompanied by Physicist R. Leitner and Swiss student A. Lister.

Performance and Durability Assessment of Two Emission Control Technologies Installed on a Legacy High-Speed Marine Diesel Engine

Science.gov (United States)

2015-11-05

Machinery Research and Engineering Dept., Philadelphia, PA, USA. 2. University of California Riverside (UCR), Bourns College of Engineering-Center for...Research and Engineering Dept., Philadelphia, PA, USA. 2. University of California Riverside (UCR), Bourns College of Engineering-Center for Environmental...four Detroit Diesel Corporation ( DDC ) 71-series 12-cylinder engines – two for propulsion and two for power generation (Jane’s 2001). Investigating

75 FR 14465 - Notice of Inventory Completion: Riverside Metropolitan Museum, Riverside, CA

Science.gov (United States)

2010-03-25

..., California; Iipay Nation of Santa Ysabel, California; Inaja Band of Diegue[ntilde]o Mission Indians of the...; Iipay Nation of Santa Ysabel, California; Inaja Band of Diegue[ntilde]o Mission Indians of the Inaja and..., California; Iipay Nation of Santa Ysabel, California; Inaja Band of Diegue[ntilde]o Mission Indians of the...

Paul Ehrenfest

International Nuclear Information System (INIS)

Broda, E.

1982-01-01

This is a short biography about Paul Ehrenfest, a famous austrian physicist and student of Ludwig Boltzmann. Ehrenfest contributed important work to thermodynamics and quantum mechanics (a.o. adiabatic invariants, and the Ehrenfest theorem). Broda describes not only his scientific research but also his interaction and relation to other famous physicist of his time, like Erwin Schrödinger, Albert Einstein and others. (nowak)

Performance evaluation of three computed radiography systems using methods recommended in American Association of Physicists in Medicine Report 93

International Nuclear Information System (INIS)

Muhogora, Wilbroad; Padovani, Renato; Bonutti, Faustino; Msaki, Peter; Kazema, R.

2011-01-01

The performances of three clinical computed radiography (CR) systems (Agfa CR 75 (with CRMD 4. 0 image plates), Kodak CR 850 (with Kodak GP plates) and Kodak CR 850A (with Kodak GP plates) were evaluated using six tests recommended in American Association of Physicists in Medicine Report 93. The results indicated variable performances with majority being within acceptable limits. The variations were mainly attributed to differences in detector formulations, plate readers' characteristics, and aging effects. The differences of the mean low contrast scores between the imaging systems for three observers were statistically significant for Agfa and Kodak CR 850A (P=0.009) and for Kodak CR systems (P=0.006) probably because of the differences in ages. However, the differences were not statistically significant between Agfa and Kodak CR 850 (P=0.284) suggesting similar perceived image quality. The study demonstrates the need to implement quality control program regularly. (author)