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Sample records for bhabha atomic research

  1. Bhabha Atomic Research Centre : annual report 1990

    International Nuclear Information System (INIS)

    1992-01-01

    Research and development (R and D) activities of the Bhabha Atomic Research Centre (BARC) carried out during 1990 are reported. The main thrust of the R and D activities of BARC is on : (1)providing support to the nuclear power programme, (2)designing, building and utilising research reactors, (3)working in related frontline technologies, and also (4)basic research in frontier areas of science. These activities are described in brief under the chapters entitled : (1)Physical Sciences (2)Chemical Sciences (3)Materials and Material Science (4)Radioisotopes (5)Reactions (6)Fuel Cycle (7)Radiological Safety and Protection (8)Electronics and Instrumentation (9)Engineering Services (10)Life Sciences and (11)General. At the end of each chapter a list of papers and reports published in the subject field indicated by the title of the chapter is given. (N.B.). figs., tabs

  2. Analysis of radiation dose rate profile in the ambient Bhabha Atomic Research Centre, Trombay environment to evaluate radiation hazard

    International Nuclear Information System (INIS)

    Vikas; Anoj Kumar; Meena, T.R.; Vikas Kumar; Patra, R.P.; Patil, S.S.; Murali, S.; Singh, Rajvir; Pradeepkumar, K.S.

    2014-01-01

    Periodic radiological survey and its analysis are useful on a two way approach. First, it will be used to generate baseline dose profile that will be prominently important during any radiological emergency. Secondly, due to some unforeseen human acts if orphan/abandoned radioactive source were present across Bhabha Atomic Research Centre site, the same can be detected and retrieved from the incident location. Periodic radiation survey of Bhabha Atomic Research Centre, Trombay site primarily validate/serve as an indicator of integrity of the various safety measures at the different nuclear fuel cycle facilities and on the prevailing radiological status at the vicinity of the facilities at Bhabha Atomic Research Centre, Trombay site. Radiation dose profile as a quality information has been accumulated in the last five years. Analysis of data has led to the conclusion that there has been no increase in hazard over the years though the quantum of radioactivity processed at the various facilities has undergone wide increase and radiation hazard at the site continues to be very negligible. Nuclear fuel cycle activities at Bhabha Atomic Research Centre do not pose any excess radiation risk at the site

  3. Bhabha Atomic Research Centre annual report : 1989

    International Nuclear Information System (INIS)

    1991-01-01

    The main thrust of the various research and development (R and D) activities of the Bhabha Atomic Research Centre (BARC), Bombay, is towards the implementation of India's nuclear power programme. To that end, its R and D activities cover the entire nuclear fuel cycle, reactor technology; applications of radioisotopes and radiations in agriculture, medicine and industries; and radiation protection in nuclear installations. The report presents in summarised form the R and D activities carried out during 1989 in the chapters entitled: Physical Sciences, Chemical Sciences, Materials and Materials Sciences, Radioisotopes, Reactors, Fuel Cycle, Radiological Safety and Protection, Electronics and Instrumentation, Engineering Services, Life Sciences and General. At the end of each chapter, a list of publications by the staff scientists in the corresponding subject field is given. The list includes published journal articles and technical reports, and papers presented at conferences, symposia etc. The report also covers the R and D activities of the outstation units of BARC, namely, Nuclear Research Laboratory, Srinagar; High Altitude Research Laboratory, Gulmarg; and Variable Energy Cyclotron Centre, Calcutta. BARC is also engaged in basic an applied research in frontier areas of science such as plasma and fusion physics, accelerators and lasers, high temperature superconductivity, condensed matter physics, high pressure physics, high resolution spectroscopy, chemical reaction dynamics and laser induced chemistry, electronics and robotics: radiation biology, and genetic engineering. Report is illustrated with a number of figures, graphs, and coloured pictures. (M.G.B.) figs., refs

  4. Bhabha Atomic Research Centre: annual report 1986-87

    International Nuclear Information System (INIS)

    1987-01-01

    The Research and Development (R and D) work and achievements of the Bhabha Atomic Research Centre, Bombay, during the financial year 1986-1987 are reported. The R and D activities of BARC cover the entire nuclear fuel cycle, production and use of radioisotopes, radiation protection and also basic research in several disciplines. The report is presented in the chapters entitled: Physical Sciences, Chemical Sciences, Materials and Materials Science, Life Sciences, Radioisotopes, Reactors, Fuel Cycle, Health and Safety, Electronics and Instrumentation, Engineering and General Services. At the end of each chapter are listed the journal articles published, the paper presented at conferences, symposia etc. and technical reports issued by the scientists of BARC in the subject field indicated by the title of the chapter. The R and D work of the outstation units of BARC, namely, Nuclear Research Laboratory at Srinagar, High Altitute Research Laboratory at Gulmarg, Variable Energy Cyclotron Centre at Calcutta and Gauribidanur Seismic Array near Bangalore are also described in the report. The report concludes with a brief account of: (1) transfer of technologies developed at the Centre, (2) activities related to human resource development for nuclear programmes of the country, and (3) progress of design and construction work of Centre for Advanced Technology at Indore. (M.G.B.)

  5. Bhabha Atomic Research Centre: annual report 1988

    International Nuclear Information System (INIS)

    1989-12-01

    The research and development (R and D) work carried out in the Bhabha Atomic Research Centre (BARC), Bombay during 1988 is summarised and presented in the sections entitled Physical Sciences, Chemical Sciences, Materials and Materials Science, Radioisotopes, Reactors, Fuel cycle, Radiological Safety and Protection, Electronics and Instrumentation, Engineering Services, Life Sciences and General. At the end of each section a list of publications is also given. The R and D work of the outstation units of BARC, namely, Nuclear Research Laboratory, Srinagar; High Altitute Research Laboratory, Gulmarg and Variable Energy Cyclotron Centre, Calcutta are also described in this report. Some of the highlights of the work during the year are: (1) Medium Energy Heavy Ion Accelerator (MEHIA) facility set up jointly by BARC and the Tata Institute of Fundamental Research (TIFR) at TIFR premises became fully operational in September 1988. A number of new compositions of high temperature supconducting materials were synthesized. The highest transition temperature achieved was 125 K. Research work to improve the quality of sintered uranium oxide pellets achieved the purpose. Nuclear fuels were fabricated by using sol-gel process. R and D work for 235 MWe and 500 MWe PHWR type reactors is continuing. Conceptual design of the fuel handling system for the prototype fast breeder reactor was finalised. 233 U+Al alloy fuel for Kamini reactor was fabricated. Progress has been made in industrial applications of enzymes. Various applications of radioisotopes are being continued. Certain technologies and processes developed in the Centre were transferred to commercial agencies for large scale exploitation. (M.G.B.)

  6. Use of radiation in grain legume improvement at Bhabha Atomic Research Centre

    International Nuclear Information System (INIS)

    Pawar, S.E.; Reddy, K.S.; Pandey, R.N.; Manjaya, J.G.; Souframanien, J.; Joshi, Archana

    2001-01-01

    Pulses are the cheapest source of protein for the predominantly vegetarian population of India. However per capita availability of pulses is reduced due to high growth of population and only marginal increase in pulses production. Development of varieties resistant to biotic and abiotic stresses will help to increase and stabilize pulse production in the country. Research work for the improvement of the three important pulse crops namely pigeon pea, mungbean and black gram was initiated using induced mutation approaches in early 70' and recently for cowpea and soybean at the Nuclear Agriculture and Biotechnology Division of the Bhabha Atomic Research Centre, Mumbai. The programme for developing disease resistant high yielding varieties is being pursued at NABTD, BARC using induced mutations and conventional breeding approaches

  7. Bhabha Atomic Research Centre (BARC) annual report 1985-86

    International Nuclear Information System (INIS)

    1987-01-01

    The research and development (R and D) activities and accomplishments during the financial year 1985-86 of the Bhabha Atomic Research Centre, Bombay are reported. The BARC is a multidisciplinary laboratory engaged in R and D activities in the field of nuclear energy. The main thrust of the R and D activities of the Centre is aimed at: (1) achieving targets of India's nuclear power programme, (2) indigenisation of the various steps in the nuclear fuel cycle, (3) developing and propagating peaceful applications of nuclear science and technology in the country in fields such as agriculture, medicine and industry, (4) providing scientific support to regulatory functions associated with nuclear facilities and radiation protection activities in the country. The salient features of these R and D activities are described in the chapters entitled: (1) physical sciences, (2) chemical sciences, (3) materials and materials sciences, (4) life sciences, (5) radioisotopes, (6) reactors, (7) fuel cycle, (8) health and safety, (9) electronics and instrumentation, and (10) technical services. A list of publications by the staff-members during the report period is given at the end of each chapter. The R and D activities of the outstation units of BARC, namely, Nuclear Research Laboratory at Srinagar, High Altitude Research Laboratory at Gulmarg, Variable Energy Cyclotron Centre at Calcutta and Gauribidanur Seismic Array near Bangalore are also covered in the report. Other activities of the Centre include technology transfer and manpower training which are also described briefly. (M.G.B.)

  8. Activities of the Corrosion and Electrometallurgy Section at Bhabha Atomic Research Centre, Trombay

    International Nuclear Information System (INIS)

    Elayaperumal, K.

    1978-01-01

    The Corrosion and Electrometallurgy Section, a part of the Metallurgy Division of the Bhabha Atomic Research Centre, Bombay, carries out research and development activities in the field of corrosion and electrometallurgy on problems connected with the materials of construction in nuclear reactors and also the associated units like heavy water plants, fuel reprocessing plants, desalination plants etc. The Section also renders consultancy services in the form of : (i) advice on materials selection for various applications, (ii) testing of components with respect to corrosion and fracture behaviour, (iii) investigation of specific problems of equipment and component failures in various units to find suitable solutions and (iv) development of protective coatings by electro-deposition on metals and alloys having high corrosion resistance, high hardness, high wear resistance and other special properties. (author)

  9. Assessment of air mass ventilation potential in and around Bhabha Atomic Research Centre Trombay

    International Nuclear Information System (INIS)

    Jana, R.; Vinod Kumar, A.

    2016-01-01

    Aim of the present study is quantification of airborne pollutant dispersion potential in and around Bhabha Atomic Research Centre Trombay, a coastal belt of Arabian sea. Apart from synoptic atmospheric circulation, there is local land-sea interactive breezes diurnally in the area for which air mass ventilation potential is assessed here. For this purpose, a micro-meteorological station was established at Mandala hill top representing Trombay area to measure 3 dimensional wind components, i.e. Zonal: u, meridional: v and vertical: w, using ultrasonic anemometer. Hourly wind speed and wind direction are derived in this study for a period of 1 year, January-December 2013. Accuracy of wind components measurement is 0.1 m/s. This covers low wind condition too, i.e. wind speed below 1 m/s. Hourly statistics of year-long as well as seasonal period of wind field and associated parameters reveals the uniqueness of wind field phenomenon at the site being situated in west coast. Seasonal Wind Roses captures various frequencies of wind speed and wind direction for the respective periods

  10. Development of optically stimulated luminescence technology for personnel monitoring applications at Bhabha Atomic Research Centre

    International Nuclear Information System (INIS)

    Kulkarni, M.S.

    2012-01-01

    The popularity of optically stimulated luminescence (OSL) technology in the radiation dosimetry applications, in general, and personnel and environmental monitoring, in particular, has driven investigation and developmental programme using OSL technique for a viable system for personnel monitoring at Bhabha Atomic Research Centre. The OSL related phosphor materials and instrumentation development has a very recent history in Bhabha Atomic Research Centre. The OSL technique is more versatile and easy to use than thermoluminescence (TL) technique. The X- and gamma ray (both high and low energy) photons and beta particles can be measured with OSL technique. In the OSL technique, the phosphor (say á- Ai 2 O 3 :C) is optically stimulated by blue/green light and the resulting light emitted from Al 2 O 3 :C (410-420 nm) is measured and correlated to the amount of radiation exposure. For a fixed stimulation intensity, the emitted blue light from the Al 2 O 3 :C dosimeter is proportional to the radiation exposure. The OSL technology is being increasingly used in several applications in external radiation dosimetry, in-vivo medical dosimetry in radiotherapy, in-situ, long-term monitoring system for radioactive contaminants, geological and archaeological dating of sediments, etc. For the success of OSL technology for large scale countrywide personnel monitoring program, indigenous development of dosimetric grade sensitive detector material was a key issue. Therefore, since 2002, efforts were directed towards the development of OSL phosphors (like aluminum oxide doped with carbon, á- Al 2 O 3 :C) and related instrumentation. To begin with, simple low cost OSL readers were developed using blue (470 nm) and green (530 nm) LED clusters. New techniques were developed for the preparation of dosimetric grade á- Ai 2 O 3 :C and other OSL phosphors. With the success in the development of indigenous technique for the large scale preparation of á- Al 2 O 3 :C phosphor, a four

  11. Radiological safety experience in nuclear fuel cycle operations at Bhabha Atomic Research Center, Trombay, Mumbai, India

    International Nuclear Information System (INIS)

    Pushparaja; Gopalakrishnan, R.K.; Subramaniam, G.

    2000-01-01

    Activities at Bhabha Atomic Research Centre (BARC), Mumbai, cover nuclear fuel cycle operations based on natural uranium as the fuel. The facilities include: plant for purification and production of nuclear grade uranium metal, fuel fabrication, research reactor operation, fuel reprocessing and radioactive waste management in each stage. Comprehensive radiation protection programmes for assessment and monitoring of radiological impact of these operations, both in occupational and public environment, have been operating in BARC since beginning. These programmes, based on the 1990 ICRP Recommendations as prescribed by national regulatory body, the Atomic Energy Regulatory Board (AERB), are being successfully implemented by the Health, Safety and Environment Group, BARC. Radiation Hazards Control Units attached to the nuclear fuel cycle facilities provide radiation safety surveillance to the various operations. The radiation monitoring programme consists of measurement and control of external exposures by thermoluminescent dosimeters (TLDs), hand-held and installed instruments, and internal exposures by bioassay and direct whole body counting using shadow shield counter for beta gamma emitters and phoswich detector based system for plutonium. In addition, an environmental monitoring programme is in place to assess public exposures resulting from the operation of these facilities. The programme involves analysis of various matrices in the environment such as bay water, salt, fish, sediment and computation of resulting public exposures. Based on the operating experience in these plants, improved educating and training programmes for plant operators, have been designed. This, together with the application of new technologies have brought down individual as well as average doses of occupational workers. The environmental releases remain a small fraction of the authorised limits. The operating health physics experience in some of these facilities is discussed in this paper

  12. Summary of environmental study carried out by Bhabha Atomic Research Centre during 8th, 9th and 10th summer Indian expeditions to Antarctica

    International Nuclear Information System (INIS)

    Ramachandran, T.V.; Sathe, A.P.; Joshi, P.V.; Balani, M.C.

    1994-01-01

    The Bhabha Atomic Research Centre has participated in the 8th, 9th and 10th summer expeditions to Antarctica during 1988-91 period to carry out background radiation survey and to collect representative samples for radioactivity and heavy metal analyses. Spot measurements of ions as well as Radon daughter radionuclides were also carried out during the expeditions. Radon levels as well as heavy metal pollutant concentrations have been found to be quite low in general; however higher levels were observed at places where human activity is concentrated around the landing area as well as the laboratory site. The richness of the shelf waters at Antarctic were also realised through analysis of phytoplankton and zooplankton samples. (author). 25 refs., 5 figs., 26 tabs

  13. Gravitational Bhabha scattering

    International Nuclear Information System (INIS)

    Santos, A F; Khanna, Faqir C

    2017-01-01

    Gravitoelectromagnetism (GEM) as a theory for gravity has been developed similar to the electromagnetic field theory. A weak field approximation of Einstein theory of relativity is similar to GEM. This theory has been quantized. Traditional Bhabha scattering, electron–positron scattering, is based on quantized electrodynamics theory. Usually the amplitude is written in terms of one photon exchange process. With the development of quantized GEM theory, the scattering amplitude will have an additional component based on an exchange of one graviton at the lowest order of perturbation theory. An analysis will provide the relative importance of the two amplitudes for Bhabha scattering. This will allow an analysis of the relative importance of the two amplitudes as the energy of the exchanged particles increases. (paper)

  14. The complete electroweak effect and perfection of Bhabha scattering in the standard model

    International Nuclear Information System (INIS)

    Shi Chengye; Fang Zhenyun; Chen Xuewen

    2013-01-01

    In this paper, we make a close and systematic research on Bhabha scattering in the electroweak unification of the standard model (SM). In concrete research methods we make the quantum field theory of perturbation theory in a new computing mode -renormalization chain propagation theory, and do an application to the Bhabha scattering calculation research. In SM, in order to consider complete electrical weak effect about Bhabha scattering internal process, we seek out the complex renormalization mixing-loop chain propagators constituted by photon y and intermediate boson Z 0 , and then calculate the Bhabha scattering cross section about this kind of propagator by transfer complete electrical weak reaction. Within the observed errors, the calculation results are in good agreement with the experimental values. Also, the main research results not only confirm the action of the particle reaction accuracy by SM theory for describing the electrical weak effect; but also suggests the SM theory may be a per ect theory and that the theory prophecy's Higgs 'mysterious particles' (which is of particular concern in the field of academic) have the large possibility to be eventually found. (authors)

  15. Homi Bhabha Centre for Science Education, Tata Institute of ...

    Indian Academy of Sciences (India)

    Home; Journals; Resonance – Journal of Science Education; Volume 22; Issue 2. Homi Bhabha Centre for Science Education, Tata Institute of Fundamental Research (A Deemed University). Information and Announcements Volume 22 Issue 2 February 2017 pp 189-189 ...

  16. Organizing Committee Advisory Committee 187

    Indian Academy of Sciences (India)

    Organizing Committee. V M Datar (Chairman). Bhabha Atomic Research Centre, Mumbai, India. D C Biswas (Convener). Bhabha Atomic Research Centre, Mumbai, India. K Mahata (Secretary). Bhabha Atomic Research Centre, Mumbai, India. Z Ahmed. Bhabha Atomic Research Centre, Mumbai, India. P V Bhagwat.

  17. Bhabha Atomic Research Centre, Bombay

    International Nuclear Information System (INIS)

    Swarup, J.; Ganguly, A.K.

    1977-01-01

    The paper reports the preliminary results obtained on the sky-shine spectra from a 650 Ci 60 Co source located at the center of a gamma irradiation field of radius 90 m fenced by a stone wall of thickness approximately 75 cm and height 3.66 m. The source is in the form of a small pellet. The height of the source when raised for irradiation is 1.2 m above ground level and it is shielded on top by a lead cylinder of 10 cm diameter and 25 cm length. Thus, only the scattered radiation can reach the ground level beyond the fencing wall. There is a field of 100 mR/hr on the inner side and 2 mR/hr on the outer side of the wall with the source raised. Experiments are carried out for the measurement of sky-shine with a well-shielded NaI detector assembly coupled to a 400-channel analyzer. The detector is placed 55 cm above ground looking vertically up through a lead collimator of diameter 12 mm (or 20 mm) at distances from 150 to 325 m away from the source. Energy calibrations of the spectra have been carried out before and after each experiment using standard sources of gamma-energy ranging from 60 to 662 keV. It is found that the spectrum extends up to 400 keV with a pronounced peak at 72 keV for all the distances. There is no evidence of the presence of primary gamma-photons in the spectra. Total counts under the sky-shine are observed to follow an exponential decline with distance, with a slope of -0.50 +- 0.02 for both the collimators used. The ratio of peak counts (72 keV) to total sky-shine is 0.24 +- 0.02 for both the collimators. Also, the nature and intensity of the spectra remain unchanged when the lead shield around the detector is provided with an internal lining of 2.5 cm thick aluminium

  18. Polarized Bhabha scattering and a precision measurement of the electron neutral current couplings

    International Nuclear Information System (INIS)

    Abe, K.; Abt, I.; Ahn, C.J.; Akagi, T.; Ash, W.W.; Aston, D.; Bacchetta, N.; Baird, K.G.; Baltay, C.; Band, H.R.; Barakat, M.B.; Baranko, G.; Bardon, O.; Barklow, T.; Bazarko, A.O.; Ben-David, R.; Benvenuti, A.C.; Bienz, T.; Bilei, G.M.; Bisello, D.; Blaylock, G.; Bogart, J.R.; Bolton, T.; Bower, G.R.; Brau, J.E.; Breidenbach, M.; Bugg, W.M.; Burke, D.; Burnett, T.H.; Burrows, P.N.; Busza, W.; Calcaterra, A.; Caldwell, D.O.; Calloway, D.; Camanzi, B.; Carpinelli, M.; Cassell, R.; Castaldi, R.; Castro, A.; Cavalli-Sforza, M.; Church, E.; Cohn, H.O.; Coller, J.A.; Cook, V.; Cotton, R.; Cowan, R.F.; Coyne, D.G.; D'Oliveira, A.; Damerell, C.J.S.; Dasu, S.; De Sangro, R.; De Simone, P.; Dell'Orso, R.; Dima, M.; Du, P.Y.C.; Dubois, R.; Eisenstein, B.I.; Elia, R.; Falciai, D.; Fan, C.; Fero, M.J.; Frey, R.; Furuno, K.; Gillman, T.; Gladding, G.; Gonzalez, S.; Hallewell, G.D.; Hart, E.L.; Hasegawa, Y.; Hedges, S.; Hertzbach, S.S.; Hildreth, M.D.; Huber, J.; Huffer, M.E.; Hughes, E.W.; Hwang, H.; Iwasaki, Y.; Jacques, P.; Jaros, J.; Johnson, A.S.; Johnson, J.R.; Johnson, R.A.; Junk, T.; Kajikawa, R.; Kalelkar, M.; Karliner, I.; Kawahara, H.; Kendall, H.W.; Kim, Y.; King, M.E.; King, R.; Kofler, R.R.; Krishna, N.M.; Kroeger, R.S.; Labs, J.F.; Langston, M.; Lath, A.; Lauber, J.A.; Leith, D.W.G.; Liu, X.; Loreti, M.; Lu, A.; Lynch, H.L.; Ma, J.; Mancinelli, G.; Manly, S.; Mantovani, G.; Markiewicz, T.W.; Maruyama, T.; Massetti, R.; Masuda, H.; Mazzucato, E.; McKemey, A.K.; Meadows, B.T.; Messner, R.; Mockett, P.M.; Moffeit, K.C.; Mours, B.; Mueller, G.; Muller, D.; Nagamine, T.; Nauenberg, U.; Neal, H.; Nussbaum, M.; Ohnishi, Y.; Osborne, L.S.; Panvini, R.S.; Park, H.; Pavel, T.J.; Peruzzi, I.; Pescara, L.; Piccolo, M.; Piemontese, L.; Pieroni, E.; Pitts, K.T.; Plano, R.J.; Prepost, R.; Prescott, C.Y.; Punkar, G.D.; Quigley, J.; Ratcliff, B.N.; Reeves, T.W.; Rensing, P.E.; Rochester, L.S.; Rothberg, J.E.; Rowson, P.C.; Russell, J.J.; Saxton, O.H.; Schalk, T.

    1995-01-01

    Bhabha scattering with polarized electrons at the Z 0 resonance has been measured with the SLD experiment at the SLAC Linear Collider. The first measurement of the left-right asymmetry in Bhabha scattering is presented, yielding the effective weak mixing angle of sinθ eff W =0.2245±0.0049±0.0010. The effective electron couplings to the Z 0 are extracted from a combined analysis of polarized Bhabha scattering and the left-right asymmetry previously published: υ e =-0.0414±0.0020 and a e =-0.4977±0.0045

  19. H.J. Bhabha: A case study of synchronous references

    International Nuclear Information System (INIS)

    Swarna, T.; Kalyane, V.L.; Prakasan, E.R.; Kumar, V.

    2006-01-01

    Quantitative analysis of the events of synchronous references in the research papers followed throughout the publishing career of an individual scientist revealed interesting highlights on the knowledge-generating-system. In the case study of Homi Jehangir Bhabha, the first quinquennium and fifth quinquennium of his research career had low self-references; the third quinquennium and the fourth quinquennium had moderate self-references; whereas the second quinquennium had the highest number of self-references. The two major clusters of self-references occurring during the second and third quinquenniums were indicators of active periods of knowledge-generating and faster communications. (author)

  20. Virtual two-loop corrections to Bhabha scattering

    International Nuclear Information System (INIS)

    Bjoerkevoll, K.S.

    1992-03-01

    The author has developed methods for the calculation of contributions from six ladder-like diagrams to Bhabha scattering. The leading terms both for separate diagrams and for the sum of the gauge-invariant set of all diagrams have been calculated. The study has been limited to contributions from Feynman diagrams without real photons, and all calculations have been done with s>> |t| >>m 2 , where s is the center of mass energy squared, t is the square of the transferred four-momentum, and m is the electron mass. For the separate diagrams the results depend upon how λ 2 is related to s, |t| and m 2 , whereas the leading term of the sum of the six diagrams is the same in the cases that have been considered. The methods described should be valuable for calculations of contributions from other Feynman diagrams, in particular QED corrections to Bhabha scattering or pair production at small angles. 23 refs., 5 figs., 5 tabs

  1. Lorentz violation, gravitoelectromagnetic field and Bhabha scattering

    Science.gov (United States)

    Santos, A. F.; Khanna, Faqir C.

    2018-01-01

    Lorentz symmetry is a fundamental symmetry in the Standard Model (SM) and in General Relativity (GR). This symmetry holds true for all models at low energies. However, at energies near the Planck scale, it is conjectured that there may be a very small violation of Lorentz symmetry. The Standard Model Extension (SME) is a quantum field theory that includes a systematic description of Lorentz symmetry violations in all sectors of particle physics and gravity. In this paper, SME is considered to study the physical process of Bhabha Scattering in the Gravitoelectromagnetism (GEM) theory. GEM is an important formalism that is valid in a suitable approximation of general relativity. A new nonminimal coupling term that violates Lorentz symmetry is used in this paper. Differential cross-section for gravitational Bhabha scattering is calculated. The Lorentz violation contributions to this GEM scattering cross-section are small and are similar in magnitude to the case of the electromagnetic field.

  2. Symmetric Moeller/Bhabha luminosity monitor for the OLYMPUS experiment

    Energy Technology Data Exchange (ETDEWEB)

    Capozza, Luigi; Maas, Frank; Perez Benito, Roberto; Rodriguez Pineiro, David [Helmholtz-Institut Mainz, Mainz (Germany); GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); O' Connor, Colton [Massachusetts Institute of Technology, Cambridge, MA (United States); Diefenbach, Juergen; Glaeser, Boris [Institut fuer Kernphysik, Mainz (Germany); Khaneft, Dmitry [Johannes Gutenberg-Universitaet Mainz, Mainz (Germany); Helmholtz-Institut Mainz, Mainz (Germany); Ma, Yue [GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany)

    2015-07-01

    The OLYMPUS experiment is motivated by the discrepancy between the proton electric to magnetic form factor ratio measured using unpolarized and polarized electron scattering. This discrepancy can be explained by a two-photon exchange (TPE) contribution in lepton-hadron scattering. Measuring the ratio of electron-proton and positron-proton elastic scattering cross sections the contribution of the TPE can be determined. For this purpose, very precise measurements of the relative luminosity have to be performed. The symmetric Moeller/Bhabha luminosity monitor, made of calorimetric lead fluoride (PbF{sub 2}) Cherenkov detectors, provides precise data from counting coincidences Moeller and Bhabha events. High sensitivity to the geometrical acceptance and alignment requires accurate study of systematic uncertainties.

  3. Annual report of the Department of Atomic Energy 1975-76

    International Nuclear Information System (INIS)

    1976-01-01

    The activities of the various constituent units of the Department of Atomic Energy such as the Bhabha Atomic Research Centre, Reactor Research Centre, Variable Energy Cyclotron, the power stations and a few others during the year 1975-76 are reported. The progress achieved in the field of atomic minerals, nuclear medicine, nuclear power, development of radioisotopes etc. are presented in detail. The responsibilities and achievements of the public sector undertakings under Department of Atomic Energy such as the Indian Rare Earth Ltd., Electronics Corporation of India Ltd., Uranium Corporation of India Ltd., are highlighted. Other activities such as planning and execution, economic and personnel health aspects, international relations etc. are also mentioned. (A.K.)

  4. Harmonic polylogarithms for massive Bhabha scattering

    International Nuclear Information System (INIS)

    Czakon, M.; Riemann, T.

    2005-08-01

    One- and two-dimensional harmonic polylogarithms, HPLs and GPLs, appear in calculations of multi-loop integrals. We discuss them in the context of analytical solutions for two-loop master integrals in the case of massive Bhabha scattering in QED. For the GPLs we discuss analytical representations, conformal transformations, and also their transformations corresponding to relations between master integrals in the s- and t-channel. (orig.)

  5. Department of Atomic Energy [India]: Annual report 1979-1980

    International Nuclear Information System (INIS)

    1980-01-01

    The work of the research establishments, projects undertaken and public sector undertakings of the Department of Atomic Energy during the financial year 1979-80 is surveyed. The research and development activities of the Bhabha Atomic Research Centre at Bombay, the Reactor Research Centre at Kalpakkam, the Tata Institute of Fundamental Research at Bombay, the Saha Institute of Nuclear Physics at Calcutta and the Tata Memorial Centre at Bombay are described. An account of the progress of heavy water production plant projects, the Madras and Narora Atomic Power Projects, the MHD project and the 100 MW thermal research reactor R-5 Project at Trombay is given. Performance of the Tarapur and Rajasthan Atomic Power Stations, Nuclear Fuel Complex at Hyderabad, Atomic Minerals Division, ISOMED (the radiation sterilisation plant for medical products) at Bombay, the Indian Rare Earths Ltd., the Uranium Corporation of India Ltd., and the Electronics Corporation of India Ltd., Hyderabad is reported. (M.G.B.)

  6. Large-angle Bhabha scattering at LEP 1

    Science.gov (United States)

    Beenakker, Wim; Passarino, Giampiero

    1998-04-01

    A critical assessment is given of the theoretical uncertainty in the predicted cross-sections for large-angle Bhabha scattering at LEP 1, with or without t-channel subtraction. To this end a detailed comparison is presented of the results obtained with the programs ALIBABA and TOPAZ0. Differences in the implementation of the radiative corrections and the effect of missing higher-order terms are critically discussed. © 1998

  7. Earthquake engineering and structural dynamics studies at Bhabha Atomic Research Centre

    International Nuclear Information System (INIS)

    Reddy, G.R.; Parulekar, Y.M.; Sharma, A.; Dubey, P.N.; Vaity, K.N.; Kukreja, Mukhesh; Vaze, K.K.; Ghosh, A.K.; Kushwaha, H.S.

    2007-01-01

    Earthquake Engineering and structural Dynamics has gained the attention of many researchers throughout the world and extensive research work is performed. Linear behaviour of structures, systems and components (SSCs) subjected to earthquake/dynamic loading is clearly understood. However, nonlinear behaviour of SSCs subjected to earthquake/dynamic loading need to be understood clearly and design methods need to be validated experimentally. In view of this, three major areas in earthquake engineering and structural dynamics identified for research includes: design and development of passive devices to control the seismic/dynamic response of SSCs, nonlinear behaviour of piping systems subjected to earthquake loading and nonlinear behavior of RCC structures under seismic excitation or dynamic loading. BARC has performed extensive work and also being continued in the above-identified areas. The work performed is helping for clearer understanding of nonlinear behavior of SSCs as well as in developing new schemes, methodologies and devices to control the earthquake response of SSCs. (author)

  8. A study of Bhabha scattering at PETRA energies

    International Nuclear Information System (INIS)

    Braunschweig, W.; Gerhards, R.; Kirschfink, F.J.; Martyn, H.U.; Rosskamp, P.; Kolanoski, H.; Balkwill, C.; Bowler, M.G.; Burrows, P.N.; Cashmore, R.J.; Dauncey, P.; Heath, G.P.; Mellor, D.J.; Ratoff, P.; Tomalin, I.; Yelton, J.M.; Baranko, G.; Caldwell, A.; Izen, J.M.; Muller, D.; Ritz, S.; Strom, D.; Takashima, M.; Wicklund, E.; Wu Saulan; Zobernig, G.

    1988-01-01

    We report on high statistics Bhabha scattering data taken with the TASSO experiment at PETRA at center of mass energies from 12 GeV to 46.8 GeV. We present an analysis in terms of electroweak parameters of the standard model, give limits on QED cut-off parameters and look for possible signs of compositeness. (orig.)

  9. Fulltext PDF

    Indian Academy of Sciences (India)

    Arora B M, Tata Institute of Fundamental Research, Mumbai. Awana V P S, National Physical Laboratory, New Delhi. Banerjee S, Bhabha Atomic Research Centre, Mumbai. Bhattacharya S, Tata Institute of Fundamental Research, Mumbai. Chaddah P, UGC-DAE CSR, Indore. Chaplot S L, Bhabha Atomic Research Centre, ...

  10. Labograph - a miniature radiography laboratory for education and research

    International Nuclear Information System (INIS)

    Krishnamurthy, K.; Muralidharan, P.; Aggarwal, K.S.

    1977-01-01

    The features of a compact self-contained low cost radiographic unit designed at the Bhabha Atomic Research Centre, Bombay, to meet the growing needs of educational and research requirements of colleges and engineering institutions within the country are described. Some of the regular applications and potential uses of the unit are discussed. (author)

  11. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. J V Joshi1 V K Aswal2 P S Goyal1. UGC-DAE-CSR, Mumbai Centre; Bhabha Atomic Research Centre, Mumbai 400 085, India; Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India ...

  12. Studies on the possibility of seawater intrusion in and around central air conditioning plant site at Bhabha Atomic Research Centre, Trombay

    International Nuclear Information System (INIS)

    Sriraman, A.K.; Tirumalesh, K.; Shivanna, K.; Tyagi, A.K.; War, S.B.; Shetty, P.S.

    2008-01-01

    The central air conditioning plant (CAP) of Bhabha Atomic Research Centre (BARC) uses raw water from Mumbai Mahanagar Palika (MMP) for its condenser cooling purposes. The same raw water is also used for drinking purposes. In an effort to minimize the dependency of raw water from MMP the CAP authorities felt a need for locating an alternate source of usable raw water. In this context it was decided to use water from the nearby bore wells located within CAP premises near the coast. The CAP site is located [19 deg 30' N, 72 deg 6' E] on the slope between the lush green Trombay hills and Mumbai Harbor Bay (MHB), resulting in the outflow of the most of the rainwater into MHB. However, part of the rainfall seeps into the subsurface resulting in the availability of groundwater through the bore wells located on the coast. The location of the bore wells close to the sea coast (∼ 200 metres away from high tide line of the highly polluted MHB), in the middle of the lush green zone, raised a question on the possible intrusion of seawater into the groundwater and its adverse impact on the operational practices of CAP. In this connection there was a need to evaluate the water from three bore wells for their use as coolant water at CAP. This report reveals the detailed study carried out on the physico-chemical nature of the water from the bore wells, for two years and the implications of these findings on operational practices of CAP. In addition environmental isotope ( 2 H, 8 O and 3 H) study was also carried out to substantiate the findings of physico-chemical study. These studies revealed interesting features. Groundwater quality in this site is mainly influenced by precipitation and rock- water interaction. The minerals present in the Basalt rocks are the source materials for the dominant ions (Ca 2+ , Mg 2+ and HCO 3 - ) observed in the waters of bore well no 1 and 3, whereas high sodium in ground water from bore well no 2 may be due to ion exchange process. Characteristic

  13. Fulltext PDF

    Indian Academy of Sciences (India)

    Abdulsalam Abdula, Nuclear Physics Division, Bhabha Atomic Research Centre,. Mumbai 400 085, India. Aberg Sven, Mathematical Physics Division, Lund University, P.O. Box 118 S-221 00,. Lund, Sweden. Acharya S N, Accelerator & Pulse Power Division, Bhabha Atomic Research Centre,. Mumbai 400 085, India.

  14. Fermionic NNLO contributions to Bhabha scattering

    International Nuclear Information System (INIS)

    Actis, S.; Riemann, T.; Czakon, M.; Uniwersytet Slaski, Katowice; Gluza, J.

    2007-10-01

    We derive the two-loop corrections to Bhabha scattering from heavy fermions using dispersion relations. The double-box contributions are expressed by three kernel functions. Convoluting the perturbative kernels with fermionic threshold functions or with hadronic data allows to determine numerical results for small electron mass m e , combined with arbitrary values of the fermion mass m f in the loop, m 2 e 2 f , or with hadronic insertions. We present numerical results for m f =m μ , m τ ,m top at typical small- and large-angle kinematics ranging from 1 GeV to 500 GeV. (orig.)

  15. Investigation of vacuum polarization in t-channel radiative Bhabha scattering

    CERN Document Server

    Karlen, D A

    2001-01-01

    We discuss the possibility of a precision measurement of vacuum polarization in t-channel radiative Bhabha scattering at a high luminosity collider. For illustration, the achievable precision is estimated for the BaBar experiment at PEP-II and for the OPAL experiment at LEP.

  16. Hard pair production in large-angle Bhabha scattering

    International Nuclear Information System (INIS)

    Arbuzov, A.B.; Trentadue, L.

    1996-01-01

    The cross section of hard pair production in large-angle Bhabha scattering calculated in the leading and next-to-leading logarithmic approximations. Eight regions of the collinear kinematics, when the final particles imitate a process of the 2 →2 type, and three semicollinear regions, when the final particles imitate a process of the 2→3 type, are considered. Analytical formulae for differential cross sections are presented. (orig.)

  17. Current research in Radiation Biology and Biochemistry Division

    International Nuclear Information System (INIS)

    Tarachand, U.; Singh, B.B.

    1995-01-01

    The Radiation Biology and Biochemistry Division, Bhabha Atomic Research Centre, Bombay has been engaged in research in the frontier areas of (i) radiation biology related to tumour therapy and injury caused by free radicals; (ii) molecular basis of diseases of physiological origin; (iii) molecular aspects of chemical carcinogenesis and (iv) structure of genome and genome related functions. The gist of research and development activities carried out in the Division during the last two years are documented

  18. Current research in Radiation Biology and Biochemistry Division

    Energy Technology Data Exchange (ETDEWEB)

    Tarachand, U; Singh, B B [eds.; Bhabha Atomic Research Centre, Bombay (India). Radiation Biology and Biochemistry Div.

    1996-12-31

    The Radiation Biology and Biochemistry Division, Bhabha Atomic Research Centre, Bombay has been engaged in research in the frontier areas of (i) radiation biology related to tumour therapy and injury caused by free radicals; (ii) molecular basis of diseases of physiological origin; (iii) molecular aspects of chemical carcinogenesis and (iv) structure of genome and genome related functions. The gist of research and development activities carried out in the Division during the last two years are documented.

  19. Scientometric mapping of mass spectrometry research in nuclear science and technology: a global perspective. IT-8

    International Nuclear Information System (INIS)

    Sagar, Anil; Kademani, B.S.; Vijai Kumar

    2007-01-01

    This paper attempts to analyse quantitatively the growth and development of Mass Spectrometry research in Nuclear Science and Technology in terms of publication output as reflected in International Nuclear Information System (INIS) database (1970-2005). During 1970-2005, a total of 10913 papers were published in various domains: Chemistry, Materials and Earth Sciences (5286) (48.44%), Physical Sciences (2367) (21.69%), Engineering and Technology (1434) (13.14), Life and Environmental Sciences (1212) (11.11), other aspects of Nuclear and Non Nuclear Energy (492) (4.51%) and Isotopes, Isotope and Radiation Applications (122) (1.12%). There were only three papers published in 1970. The highest number of papers (816) were published in 2004. The average number of publications published per year was 303.13. United States topped the list with 2247 publications followed by Germany with 1333 publications, Japan with 820 publications, France with 525 publications, and India with 460 publications. Authorship and collaboration trend was towards multi-authored papers as 81.83 percent of the papers were collaborative is indicative of the multidisciplinary nature of research activity. The most prolific authors were: S.K. Aggarwal, Bhabha Atomic Research Centre, Mumbai, India with 113 publications, W. Kutschera, University of Vienna, Austria with 85 publications, and H.C. Jain, Bhabha Atomic Research Centre, Mumbai, India with 70 publications. The highly productive institutions were: Bhabha Atomic Research Centre, Mumbai (India) with 233 publications, Argonne National Laboratory (USA) with 150 publications, Oak Ridge National Laboratory (USA) with 146 publications, University of California (USA) with 118 publications, Los Alamos National Laboratory (USA) with 104 publications and Japan Atomic Energy Research Institute (Japan) with 91 publications. The journals most preferred by the scientists for publication of papers were: Nuclear Instruments and Methods in Physics Research

  20. Occupational radiation protection experience in radioactive waste management at Bhabha Atomic Research Centre, Trombay, Mumbai, India

    International Nuclear Information System (INIS)

    Ramchandran, V.; Jauhri, G.S.

    2000-01-01

    Waste Management Facilities, Trombay (WMFT) comprises Radioactive Solid waste Management Site (RSMS), an Effluent Treatment Plant (ETP), and a Decontamination Centre (DC). Radioactive wastes from the plants and laboratories in Mumbai are handled here. The wastes are categorized and classified as per International Atomic Energy Agency (IAEA) and Atomic Energy Regulatory Board (AERB) guidelines. RSMS is a near surface disposal facility, where assorted beta gamma solid waste is disposed off in appropriate disposal facilities. ETP is a centralized low level liquid waste treatment facility, where liquid effluent is chemically treated to remove the radionuclides present in it, monitored for radioactivity, and discharged into the Mumbai Harbour Bay. In DC, plant and laboratory used clothings and personnel protective wears are decontaminated, monitored and sent for reuse. A comprehensive radiation monitoring programme is in place in these facilities from the beginning of radioactive waste management operations at BARC. The per capita radiation dose of the occupational workers and individual maximum dose has been low. Radioactivity release through liquid effluent from ETP has been kept well below Authorized Limits (AL). There has been no safety related unusual occurrences during the facility operation, that had any significant radiological impact. (author)

  1. Research and development activities of the Neutron Physics Division for the period January 1977-December 1978

    International Nuclear Information System (INIS)

    Ramanadham, M.; Joneja, O.P.

    1979-01-01

    The research and development programmes of the Neutron Physics Division of the Bhabha Atomic Research Centre, Bombay, for the period 1977-1978 are outlined. The fields covered include reactor (neutron) physics, fusion and plasma neutronics, biological and high precision crystallography, solid state phenomena and seismology as well as the associated workshop facilities. (K.B.)

  2. Pair production in small angle Bhabha scattering

    International Nuclear Information System (INIS)

    Arbuzov, A.B.; Kuraev, Eh.A.; Merenkov, N.P.; Trentadue, L.

    1995-01-01

    The radiative corrections due to a pair production in the small angle high energy e + e - Bhabha scattering are considered. The corrections due to the production of virtual pairs as well as real soft and hard ones are calculated analytically. The collinear and semi-collinear kinematical regions of the hard pair production are taken into account. The results in the leading and next-to-leading logarithmic approximations provide the accuracy of Ο (0.1%). The results of numerical calculations show that the effects of pairs production are to be taken into account in the precise luminosity determination at LEP. 9 refs., 3 figs., 2 tabs

  3. to view fulltext PDF

    Indian Academy of Sciences (India)

    @iopb.ernet.in. Acharya S, Accelerator and Pulsed Power Division (APPD), Bhabha Atomic Research Centre,. Mumbai 400 085, India. Acharyulu G Y S G, Technical Physics and Prototype Engineering Division (TPPED), Bhabha.

  4. Department of Atomic Energy [India]: Annual report 1978-79

    International Nuclear Information System (INIS)

    1979-01-01

    The research and development activities and achievements of the research organizations of the Department of Atomic Energy (DAE, India), progress of various DAE projects underway and performance of nuclear power plants and other public sector underking of DAE have been reported. The report covers the financial year 1978-79. Some of the major achievements during the year have been: (1) development of a portable local vacuum electron beam welding machine, (2) commissioning of the Variable Energy Cyclotron, Calcutta for obtaining an external beam of 30 MeV alphas, (4) locating minute leaks by tracer techniques on the 140 km. Koyali-Viramgam Oil pipeline and (5) investigation by tracer technique of geological fault at the Lakya dam site of the Kudremukh Iron Ore Project in Karnataka. The R and D work of the Bhabha Atomic Research Centre, Bombay; Reactor Research Centre, Kalpakkam; Tata Institute of Fundamental Research, Bombay; Saha Institute of Nuclear Physics, Calcutta, Tata Memorial Centre and Cancer Research Centre both at Bombay is summarised. (M.G.B.)

  5. Software development agreement between CERN and the Indian Department of Atomic Energy

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    The development and prototyping work for the LHC computing facility is being organised as a project that includes many scientific institutes and industrial partners, coordinated by CERN. The project is nicknamed LCG (after LHC Computing Grid). Addendum No. 1 to the Protocol dated 24/09/02 to the 1991 co-operation agreement between CERN and the Department of Atomic Energy (DAE) of the Government of India defines the collaboration between CERN and DAE on software development for the LCG Prototype Project. Signing the addendum are G. Govindrajan (left), Director of the Electronics and Instrumentation Group at the Bhabha Atomic Research Centre, Mumbai, India and Dr. Hans Hoffmann, CERN Director for Technology Transfer and for Scientific Computing.

  6. Research and development activities of the Neutron Physics Division for the period January 1980 - December 1980

    International Nuclear Information System (INIS)

    Basu, T.K.; Bhakay-Tamhane, S.

    1981-01-01

    The highlights of the research and development (R and D) activities of the Neutron Physics Division of the Bhabha Atomic Research Centre, Bombay, during January - December 1980 are summarised. The R and D activities are in the fields of critical and subcritical fission systems, the plasma focus device, applied neutron physics, neutron and X-ray crystallography, materials physics and seismology. (M.G.B.)

  7. Annual report of the Department of Atomic Energy 1977-78

    International Nuclear Information System (INIS)

    1978-01-01

    The activities during the financial year 1977-78 of the research organizations and laboratories, various projects underway and public sector undertakings of the Department of Atomic Energy (India) have been reported. The R and D Work of the Bhabha Atomic Research Centre, Bombay and Reactor Research Centre, Kalpakkam in the fields of nuclear physics, radio- and radiation chemistry and other physical sciences; biological sciences including nuclear medicine, food irradiation and plant breeding by radiation mutation; reactor engineering and application of radiation and radioisotopes has been surveyed. The progress of heavy water projects, MHD project, nuclear power plant projects and 100 Mw thermal research reactor R-5 project has been described. Performance of Tarapur and Rajasthan Atomic Power Stations, Nuclear Fuel Complex and Electronics Corporation of India Ltd., both at Hyderabad, Uranium Corporation of India Ltd. at Jaduguda and Indian Rare Earths Ltd. has been reported. Major achievements during the period of report are : (1) completion of construction work of the Power Reactor Fuel Reprocessing Plant at Tarapur and (2) Commissioning of the Variable Energy Cyclotron, Calcutta for the internal circulating beam of alpha particles. (M.G.B.)

  8. Research and development activities of High Pressure Physics Division (October 1993 - March 1996)

    International Nuclear Information System (INIS)

    Gyanchandani, Jyoti; Gangrade, B.K.

    1996-07-01

    The research and development activities of the High Pressure Physics Division during the period October 1993-March 1996 are reported in the form of collection of papers presented in journals, conference proceedings and abstracts in conferences and Bhabha Atomic Research Centre (BARC) technical reports. The report is organised in two sections: (A) High Pressure Physics Division, and (B) Seismology Section. A list of staff members is enclosed at the end

  9. Research and development activities of High Pressure Physics Division (October 1993 - March 1996)

    Energy Technology Data Exchange (ETDEWEB)

    Gyanchandani, Jyoti; Gangrade, B K [eds.; High Pressure Physics Div., Bhabha Atomic Research Centre, Mumbai (India)

    1996-07-01

    The research and development activities of the High Pressure Physics Division during the period October 1993-March 1996 are reported in the form of collection of papers presented in journals, conference proceedings and abstracts in conferences and Bhabha Atomic Research Centre (BARC) technical reports. The report is organised in two sections: (A) High Pressure Physics Division, and (B) Seismology Section. A list of staff members is enclosed at the end.

  10. Two-loop ladder diagram contributions to Bhabha scattering. III

    International Nuclear Information System (INIS)

    Bjoerkevoll, K.S.; Osland, P.; Faeldt, G.

    1992-01-01

    The authors evaluate, in the high-energy limit, the sum of the Feynman amplitudes corresponding the six two-loop ladder-like diagrams in Bhabha scattering. This is the limit where s→∞, while t, the electron mass m and the photon mass λ are all being held fixed. In this limit the sum of the six Feynman amplitudes does not depend on the electron mass. When specialized to the region s>>t>>m 2 >>λ 2 , this result complements the one previously obtained. The connection with Φ 3 theory is also investigated. 6 refs

  11. Two-loop fermionic corrections to massive Bhabha scattering

    Energy Technology Data Exchange (ETDEWEB)

    Actis, S.; Riemann, T. [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany); Czakon, M. [Wuerzburg Univ. (Germany). Inst. fuer Theoretische Physik und Astrophysik]|[Institute of Nuclear Physics, NSCR DEMOKRITOS, Athens (Greece); Gluza, J. [Silesia Univ., Katowice (Poland). Inst. of Physics

    2007-05-15

    We evaluate the two-loop corrections to Bhabha scattering from fermion loops in the context of pure Quantum Electrodynamics. The differential cross section is expressed by a small number of Master Integrals with exact dependence on the fermion masses m{sub e}, m{sub f} and the Mandelstam invariants s, t, u. We determine the limit of fixed scattering angle and high energy, assuming the hierarchy of scales m{sup 2}{sub e}<

  12. Accelerators for atomic energy research

    International Nuclear Information System (INIS)

    Shibata, Tokushi

    1999-01-01

    The research and educational activities accomplished using accelerators for atomic energy research were studied. The studied items are research subjects, facility operation, the number of master theses and doctor theses on atomic energy research using accelerators and the future role of accelerators in atomic energy research. The strategy for promotion of the accelerator facility for atomic energy research is discussed. (author)

  13. Department of Atomic Energy: Annual report, 1983-84

    International Nuclear Information System (INIS)

    1984-01-01

    The annual report of the Department of Atomic Energy for the financial year 1983-84 describes its activities under the headings: Nuclear Power, Research and Development, Public Sector Undertakings, and Other Activities. The report surveys: (1) the performance of nuclear power plants at Tarapur, Kota and Kalpakkam, heavy water plants, fuel fabrication and reprocessing plants, and waste management facilities, (2) the research and development activities of Bhabha Atomic Research Centre at Bombay and its constituent units at various locations in the country, Reactor Research Centre at Kalpakkam, the aided institutes, namely, Tata Institute of Fundamental Research and Tata Memorial Centre, both at Bombay, and Saha Institute of Nuclear Physics at Calcutta, (3) performance of public sector undertakings: Indian Rare Earths Ltd., Uranium Corporation of India Ltd., and Electronics Corporation of India Ltd., (4) progress of nuclear power projects at Narora and Kakrapar, Orissa Sand Complex Project, MHD project at Tiruchirapalli, DHRUVA (formerly known as R-5) project at Bombay, Fast Breeder Test Reactor and 500 MW Prototype Fast Breeder Reactor projects at Kalpakkam, and heavy water projects at Thal-Vaishet and Manuguru, and (5) other activities including technology transfer; training; service to industry, agriculture and medicine in use of radioisotopes and radiation, export of radioisotopes, allied products and nuclear instruments; international relations; countrywide radiation safety programme, exploration of atomic minerals; information and publicity etc. An Atomic Energy Regulatory Board was established during the report year for the special purpose of carrying out regulatory and safety functions specified in the Atomic Energy Act of the Government of India. (M.G.B.)

  14. Atoms: for war or peace

    Energy Technology Data Exchange (ETDEWEB)

    Subrahmanyam, K V

    1981-08-01

    History of nuclear power generation starting from the experimental split of uranium atom in 1938 to the establishment of the International Atomic Energy Agency is traced. In India, the Atomic Energy Commission was established with the major objective of developing nuclear power to make up India's deficiencies in energy sources. It is noted that from the very beginning the commission's activities were covered under a blanket of secrecy. According to the author, India's atomic energy programme stagnated after Dr. Bhabha's death. The Department of Atomic Energy diverted its attention to the nuclear explosion which was carried out in 1974. This event caused a great setback to the collaboration with Canada and USA in the nuclear power programme. The resulting problems are still not fully solved. The author maintains that the Department of Atomic Energy should have confined its efforts to the reactor development with special reference to the fast breeder reactor so that thorium can be utilised to the maximum advantage.

  15. Partial thorium loading in the initial core of Kakrapar atomic power reactor

    International Nuclear Information System (INIS)

    Balakrishnan, M.R.

    1993-01-01

    The first unit of Kakrapar nuclear power station has gone critical with some thorium oxide fuel bundles loaded in its core. The thorium helps to flatten the power by reducing neutron flux in the centre of the reactor. However, the placing of the thorium had to be planned with care, because if the neutron flux at a point where a safety rod is located is depressed, the reactivity worth of the safety rod gets reduced. Using a dynamic programing approach, the Reactor Engineering Division of Bhabha Atomic Research Centre worked out a satisfactory configuration for loading the thorium bundles

  16. Violation of the factorization theorem in large-angle radiative Bhabha scattering

    International Nuclear Information System (INIS)

    Arbuzov, A.B.; Kuraev, Eh.A.; Shajkhatdenov, B.G.

    1998-01-01

    The lowest order QED radiative corrections to the radiative large-angle Bhabha scattering process in the region where all the kinematical invariants are large compared to the electron mass are considered. We show that the leading logarithmic corrections do not factor before the Born cross section, contrary to the picture assumed in the renormalization group approach. Estimation of the leading and nonleading contributions for typical kinematics of the hard process for energy of Φ factory is done

  17. Annual report 1982-83 [of the Department of Atomic Energy, India

    International Nuclear Information System (INIS)

    1983-01-01

    The annual report of the Department of Atomic Energy (DAE) of the Government of India for the financial year 1982-83 surveys the work of its various establishments. The major thrust of the DAE's programme is directed towards peaceful uses of atomic ener%y - primarily for electric power generation and applications of radiation and radioisotopes in medicine, agriculture and industry. The Bhabha Atomic Research Centre at Bombay is the major R and D establishment of the DAE and its activities in the fields of nuclear physics, chemistry and materials science, radiochemistry, nuclear fuels, reactor engineering, radiation protection, radioactive waste management and applications of radiation and radioactive isotopes are described in detail. The R and D activities of the Reactor Research Centre at Kanpakkam, the Tata Institute of Fundamental Research and the Tata A1emorial Centre, both at Bombay, and the Saha Institute of Nuclear Physics at Calcutta are described in brief. The performance of the Tarapur Atomic Power Station, the Rajasthan Atomic Power Station, the Nuclear Fuel Complex at Hyderabad, the Atomic Minerals Division, Uranium Corporation of India Ltd at Jaduguda, various heavy water plants and other industrial units of DAE is reported. Progress of nuclear power projects at Narora and Kakrapar, R-5 Project at Bombay and FBTR Project at Kalpakkam is described. India's participation in the activities of the International Atomic Energy Agency is also mentioned. (M.G.B.)

  18. Search for the Single Production of Doubly-Charged Higgs Bosons and Constraints on their Couplings from Bhabha Scattering

    CERN Document Server

    Abbiendi, G; Akesson, P.F.; Alexander, G.; Allison, John; Amaral, P.; Anagnostou, G.; Anderson, K.J.; Arcelli, S.; Asai, S.; Axen, D.; Azuelos, G.; Bailey, I.; Barberio, E.; Barlow, R.J.; Batley, R.J.; Bechtle, P.; Behnke, T.; Bell, Kenneth Watson; Bell, P.J.; Bella, G.; Bellerive, A.; Benelli, G.; Bethke, S.; Biebel, O.; Boeriu, O.; Bock, P.; Boutemeur, M.; Braibant, S.; Brigliadori, L.; Brown, Robert M.; Buesser, K.; Burckhart, H.J.; Campana, S.; Carnegie, R.K.; Caron, B.; Carter, A.A.; Carter, J.R.; Chang, C.Y.; Charlton, David G.; Csilling, A.; Cuffiani, M.; Dado, S.; De Roeck, A.; De Wolf, E.A.; Desch, K.; Dienes, B.; Donkers, M.; Dubbert, J.; Duchovni, E.; Duckeck, G.; Duerdoth, I.P.; Etzion, E.; Fabbri, F.; Feld, L.; Ferrari, P.; Fiedler, F.; Fleck, I.; Ford, M.; Frey, A.; Furtjes, A.; Gagnon, P.; Gary, John William; Gaycken, G.; Geich-Gimbel, C.; Giacomelli, G.; Giacomelli, P.; Giunta, Marina; Goldberg, J.; Groll, M.; Gross, E.; Grunhaus, J.; Gruwe, M.; Gunther, P.O.; Gupta, A.; Hajdu, C.; Hamann, M.; Hanson, G.G.; Harder, K.; Harel, A.; Harin-Dirac, M.; Hauschild, M.; Hawkes, C.M.; Hawkings, R.; Hemingway, R.J.; Hensel, C.; Herten, G.; Heuer, R.D.; Hill, J.C.; Hoffman, Kara Dion; Horvath, D.; Igo-Kemenes, P.; Ishii, K.; Jeremie, H.; Jovanovic, P.; Junk, T.R.; Kanaya, N.; Kanzaki, J.; Karapetian, G.; Karlen, D.; Kawagoe, K.; Kawamoto, T.; Keeler, R.K.; Kellogg, R.G.; Kennedy, B.W.; Kim, D.H.; Klein, K.; Klier, A.; Kluth, S.; Kobayashi, T.; Kobel, M.; Komamiya, S.; Kormos, Laura L.; Kramer, T.; Krieger, P.; von Krogh, J.; Kruger, K.; Kuhl, T.; Kupper, M.; Lafferty, G.D.; Landsman, H.; Lanske, D.; Layter, J.G.; Leins, A.; Lellouch, D.; Lettso, J.; Levinson, L.; Lillich, J.; Lloyd, S.L.; Loebinger, F.K.; Lu, J.; Ludwig, J.; Macpherson, A.; Mader, W.; Marcellini, S.; Martin, A.J.; Masetti, G.; Mashimo, T.; Mattig, Peter; McDonald, W.J.; McKenna, J.; McMahon, T.J.; McPherson, R.A.; Meijers, F.; Menges, W.; Merritt, F.S.; Mes, H.; Michelini, A.; Mihara, S.; Mikenberg, G.; Miller, D.J.; Moed, S.; Mohr, W.; Mori, T.; Mutter, A.; Nagai, K.; Nakamura, I.; Nanjo, H.; Neal, H.A.; Nisius, R.; O'Neale, S.W.; Oh, A.; Okpara, A.; Oreglia, M.J.; Orito, S.; Pahl, C.; Pasztor, G.; Pater, J.R.; Patrick, G.N.; Pilcher, J.E.; Pinfold, J.; Plane, David E.; Poli, B.; Polok, J.; Pooth, O.; Przybycien, M.; Quadt, A.; Rabbertz, K.; Rembser, C.; Renkel, P.; Roney, J.M.; Rosati, S.; Rozen, Y.; Runge, K.; Sachs, K.; Saeki, T.; Sarkisyan, E.K.G.; Schaile, A.D.; Schaile, O.; Scharff-Hansen, P.; Schieck, J.; Schoerner-Sadenius, Thomas; Schroder, Matthias; Schumacher, M.; Schwick, C.; Scott, W.G.; Seuster, R.; Shears, T.G.; Shen, B.C.; Sherwood, P.; Siroli, G.; Skuja, A.; Smith, A.M.; Sobie, R.; Soldner-Rembold, S.; Spano, F.; Stahl, A.; Stephens, K.; Strom, David M.; Strohmer, R.; Tarem, S.; Tasevsky, M.; Taylor, R.J.; Teuscher, R.; Thomson, M.A.; Torrence, E.; Toya, D.; Tran, P.; Trigger, I.; Trocsanyi, Z.; Tsur, E.; Turner-Watson, M.F.; Ueda, I.; Ujvari, B.; Vollmer, C.F.; Vannerem, P.; Vertesi, R.; Verzocchi, M.; Voss, H.; Vossebeld, J.; Waller, D.; Ward, C.P.; Ward, D.R.; Watkins, P.M.; Watson, A.T.; Watson, N.K.; Wells, P.S.; Wengler, T.; Wermes, N.; Wetterling, G.W.; Wilson, D.; Wilson, J.A.; Wolf, G.; Wyatt, T.R.; Yamashita, S.; Zer-Zion, D.; Zivkovic, Lidija

    2003-01-01

    A search for single production of doubly-charged Higgs bosons has been performed using 600.7 pb^-1 of e+e- collision data with sqrt(s)=189--209GeV collected by the OPAL detector at LEP. No evidence for the existence of H++/-- is observed. Upper limits on the Yukawa coupling of the H++/-- to like-signed electron pairs are derived. Additionally, indirect constraints on the Yukawa coupling from Bhabha scattering, where the H++/-- would contribute via t-channel exchange, are derived for M(H++/--) < 2TeV. These are the first results for both a single production search and constraints from Bhabha scattering reported from LEP.

  19. Research reactor DHRUVA

    International Nuclear Information System (INIS)

    Veeraraghaven, N.

    1990-01-01

    DHRUVA, a 100 MWt research reactor located at the Bhabha Atomic Research Centre, Bombay, attained first criticality during August, 1985. The reactor is fuelled with natural uranium and is cooled, moderated and reflected by heavy water. Maximum thermal neutron flux obtained in the reactor is 1.8 X 10 14 n/cm 2 /sec. Some of the salient design features of the reactor are discussed in this paper. Some important features of the reactor coolant system, regulation and protection systems and experimental facilities are presented. A short account of the engineered safety features is provided. Some of the problems that were faced during commissioning and the initial phase of power operation are also dealt upon

  20. Department of Atomic Energy, annual report, 1980-81

    International Nuclear Information System (INIS)

    1981-01-01

    The annual report of the Department of Atomic Energy (DAE) of the Government of India for the period of the fiscal year 1980-81 surveys the work of DAE, its various constituent units and aided institutions. The main thrust of the DAE's programme in the country is directed towards peaceful uses of atomic energy - primarily for generation of electric power and also for application of radioisotopes and radiation in medicine, agriculture, and industry. The research and development (R and D) activities of the Bhabha Atomic Research Centre (BARC) at Bombay, the major R and D establishment of DAE, in the fields of nuclear physics, solid state physics, chemistry and materials science, isotope and radiation applications, reactor technology and radioactive waste management are described in detail. The R and D activities of the Reactor Research Centre at Kalpakkam and the aided institutions such as the Tata Institute of Fundamental Research and the Tata Memorial Centre, both at Bombay, and the Saha Institute of Nuclear Physics at Calcutta are reviewed in brief. Progress of the MHD project, the heavy water plant projects, the thermal research reactor R-5 project at BARC and nuclear power plant projects at Narora and Kalpakkam is surveyed. Performance of industrial production units such as nuclear power stations at Tarapur and Kota, the Nuclear Fuel Complex at Hyderabad, Atomic Minerals Division, ISOMED - the radiation sterilisation plant for medical products, the Indian Rare Earths Ltd., the Electronics Corporation of India Ltd., and the Uranium Corporation of India Ltd., is reported. India's participation in the activities of the International Atomic Energy Agency and collaboration with other countries are also mentioned. (M.G.B.)

  1. Research within the coordinated programme on neutron scattering techniques in applied research

    International Nuclear Information System (INIS)

    Satya Murthy, N.S.

    1982-02-01

    This paper reviews developments of neutron scattering studies at Bhabha Atomic Research Centre (BARC) over the past two decades through utilisation of Apsara and Circus reactor facilities. Salient results in neutron crystallography, magnetic diffraction and inelastic neutron scattering will be presented highlighting progressive involvement in more and more complex studies. The growth of non-neutronic activities as a natural outcome of overall necessity and interest of investigators will be indicated. A description of facilities planned at R5 and the nature of studies that are likely to be taken up at R5 will be briefly discussed. (author)

  2. Trends in exotic-atom research

    International Nuclear Information System (INIS)

    Lambrecht, R.M.; Horvath, D.

    1983-01-01

    An attempt was made to analyze the trends in the development of exotic-atom research on the basis of a recently compiled bibliography. The analysis of nearly 4000 publications demonstrated that: (1) exotic atoms are nuclear probes used in every field of physics, from the test of quantum electrodynamics (QED) to chemical physics, to materials sciences; (2) the role of nuclear and atomic physics in exotic atom research is decreasing (although it is still significant), while that of materials sciences and chemial physics is exponentially increasing; and (3) prior to 1980 most investigators were mainly interested in atoms with negative muons, while during the last few years the positive muon (μSR) studies have dominated exotic atom research

  3. Annual report 1984-85 [of the Department of Atomic Energy, of the Government of India

    International Nuclear Information System (INIS)

    1985-01-01

    Research and Development (R and D) activities of the research establishments of the Department of Atomic Energy (DAE), performance of various production units and public sector undertakings of DAE and progress of various projects underway are reported. The report covers the period of the financial year 1984-85. The research establishments of DAE are the Bhabha Atomic Research Centre at Bombay and the Reactor Research Centre at Kalpakkam. DAE production units include atomic power stations for electricity generation at Tarapur, Kota and Kalpakkam; heavy water plants around the country and the Nuclear Fuel Complex at Hyderabad. Public sector undertaking of the Department are Indian Rare Earths Ltd., Electronic Corporation of India Ltd., and Uranium Corporation of India Ltd. The Atomic Minerals Division of the Department is mainly engaged in the R and D activities pertaining to exploration, prospecting and development of mineral resources needed for nuclear power programme. The Department's objective is to achieve the target of 10,000 MWe of nuclear power generating capacity by the year 2000. The Department's Nuclear Power Board operates the atomic power stations and is charged with the responsibility of design, construction and commissioning of atomic power projects at Narora and Kakrapar. The Department also financially supports the Tata Institute of Fundamental Research, the Tata Memorial Centre, both at Bombay and the Saha Institute of Nuclear Physics at Calcutta. The R and D activities of these institutions are also described in brief in this report. (M.G.B.)

  4. Studies on the measurement of differential luminosity using Bhabha events at the International Linear Collider

    Energy Technology Data Exchange (ETDEWEB)

    Sailer, Andre Philippe

    2009-04-15

    The International Linear Collider (ILC) is an electron-positron-collider with a variable center-of-mass energy {radical}(2) between 200 and 500 GeV. The small bunch sizes needed to reach the design luminosity of L{sub Peak}=2.10{sup 34} cm{sup -2}s{sup -1} necessary for the physics goals of the ILC, cause the particles to radiate beamstrahlung during the bunch crossings. Beamstrahlung reduces the center-of-mass energy from its nominal value to the effective center-of-mass energy {radical}(2'). The spectrum of the effective center-of-mass energy {radical}(2') is the differential luminosity dL/d{radical}(2'), which has to be known to precisely measure particle masses through threshold scans. The differential luminosity can be measured by using Bhabha events. The real differential luminosity is simulated by the GuineaPig software. The energy spectrum of the Bhabha events is measured by the detector and compared to the energy spectrum of Monte Carlo (MC) Bhabha events with a known differential luminosity given by an approximate parameterization. The parameterization is used to assign each MC event a weight. By re-weighting the events, until the energy spectra from the real and the MC Bhabha events match, the differential luminosity can be measured. The approximate parameterization of the differential luminosity is given by the Circe parameterization introduced by T. Ohl (1997), which does not include the correlation between the particle energies due to beamstrahlung. The Circe parameterization is extended to include the correlation and better describe the differential luminosity. With this new parameterization of the differential luminosity it is possible to predict the observed production cross section of a MC toy particle with a mass of 250 GeV/c{sup 2} to a precision better than 0.2%. Using the re-weighting fit with the extended parameterization also allows the measurement of the beam energy spreads of {sigma}{sub E}=0.0014 for electrons and {sigma

  5. Studies on the measurement of differential luminosity using Bhabha events at the International Linear Collider

    International Nuclear Information System (INIS)

    Sailer, Andre Philippe

    2009-04-01

    The International Linear Collider (ILC) is an electron-positron-collider with a variable center-of-mass energy √(2) between 200 and 500 GeV. The small bunch sizes needed to reach the design luminosity of L Peak =2.10 34 cm -2 s -1 necessary for the physics goals of the ILC, cause the particles to radiate beamstrahlung during the bunch crossings. Beamstrahlung reduces the center-of-mass energy from its nominal value to the effective center-of-mass energy √(2'). The spectrum of the effective center-of-mass energy √(2') is the differential luminosity dL/d√(2'), which has to be known to precisely measure particle masses through threshold scans. The differential luminosity can be measured by using Bhabha events. The real differential luminosity is simulated by the GuineaPig software. The energy spectrum of the Bhabha events is measured by the detector and compared to the energy spectrum of Monte Carlo (MC) Bhabha events with a known differential luminosity given by an approximate parameterization. The parameterization is used to assign each MC event a weight. By re-weighting the events, until the energy spectra from the real and the MC Bhabha events match, the differential luminosity can be measured. The approximate parameterization of the differential luminosity is given by the Circe parameterization introduced by T. Ohl (1997), which does not include the correlation between the particle energies due to beamstrahlung. The Circe parameterization is extended to include the correlation and better describe the differential luminosity. With this new parameterization of the differential luminosity it is possible to predict the observed production cross section of a MC toy particle with a mass of 250 GeV/c 2 to a precision better than 0.2%. Using the re-weighting fit with the extended parameterization also allows the measurement of the beam energy spreads of σ E =0.0014 for electrons and σ E = 0.0010 for positrons with a precision of a few percent. The total error

  6. Massive two-loop Bhabha scattering - the factorizable subset

    International Nuclear Information System (INIS)

    Fleischer, J.; Tarasov, O.V.; Werthenbach, A.

    2002-11-01

    The experimental precision that will be reached at the next generation of colliders makes it indispensable to improve theoretical predictions significantly. Bhabha scattering (e + e - → e + e - ) is one of the prime processes calling for a better theoretical precision, in particular for non-zero electron masses. We present a first subset of the full two-loop calculation, namely the factorizable subset. Our calculation is based on DIANA. We reduce tensor integrals to scalar integrals in shifted (increased) dimensions and additional powers of various propagators, so-called dots-on-lines. Recurrence relations remove those dots-on-lines as well as genuine dots-on-lines (originating from mass renormalization) and reduce the dimension of the integrals to the generic d=4-2ε dimensions. The resulting master integrals have to be expanded to O(ε) to ensure proper treatment of all finite terms. (orig.)

  7. Virtual hadronic and heavy-fermion O({alpha}{sup 2}) corrections to Bhabha scattering

    Energy Technology Data Exchange (ETDEWEB)

    Actis, Stefano [Inst. fuer Theoretische Physik E, RWTH Aachen (Germany); Czakon, Michal [Wuerzburg Univ. (Germany). Inst. fuer Theoretische Physik und Astrophysik]|[Uniwersytet Slaski, Katowice (Poland). Inst. of Physics and Chemistry of Metals; Gluza, Janusz [Uniwersytet Slaski, Katowice (Poland). Inst. of Physics and Chemistry of Metals; Riemann, Tord [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)

    2008-07-15

    Effects of vacuum polarization by hadronic and heavy-fermion insertions were the last unknown two-loop QED corrections to high-energy Bhabha scattering. Here we describe the corrections in detail and explore their numerical influence. The hadronic contributions to the virtual O({alpha}{sup 2}) QED corrections to the Bhabha-scattering cross-section are evaluated using dispersion relations and computing the convolution of hadronic data with perturbatively calculated kernel functions. The technique of dispersion integrals is also employed to derive the virtual O({alpha}{sup 2}) corrections generated by muon-, tau- and top-quark loops in the small electron-mass limit for arbitrary values of the internal-fermion masses. At a meson factory with 1 GeV center-of-mass energy the complete effect of hadronic and heavy-fermion corrections amounts to less than 0.5 per mille and reaches, at 10 GeV, up to about 2 per mille. At the Z resonance it amounts to 2.3 per mille at 3 degrees; overall, hadronic corrections are less than 4 per mille. For ILC energies (500 GeV or above), the combined effect of hadrons and heavy fermions becomes 6 per mille at 3 degrees; hadrons contribute less than 20 per mille in the whole angular region. (orig.)

  8. Health Physics Division annual report for the period ending December 31, 1972 Part I : Research and development

    International Nuclear Information System (INIS)

    1973-01-01

    The Health Physics Division of the Bhabha Atomic Research Centre, Bombay (India) is responsible for: (i) assessment and control of radiation and industrial hazards in various research establishments and industrial installations of the Department of Atomic Energy and (ii) prescribing limits and conditions in respect of waste releases to the environment from the above establishments and installations. For effective discharge of these responsibilities, the Division is engaged in various research programmes in the following areas: (1) radiation dosimetry (2) instrumentation (3) pollution (4) environmental radioactivity, both natural and artificial (5) radioactive contamination and nuclear safety (6) industrial hygiene and safety (7) radioecology (8) micrometeorology. These programmes are described in brief. (M.G.B.)

  9. Atomic energy

    International Nuclear Information System (INIS)

    Ramanna, R.

    1978-01-01

    Development of nuclear science in India, particularly the research and development work at the Bhabha Atomic Research Centre (BARC), Bombay, is described. Among the wide range of materials developed for specific functions under rigorous conditions are nuclear pure grade uranium, zirconium and beryllium, and conventional materials like aluminium, carbon steel and stainless steels. Radioisotopes are produced and used for tracer studies in various fields. Various types of nuclear gauges and nuclear instruments are produced. Radiations have been used to develop new high yielding groundnut mutants with large kernals. The sterile male technique for pest control and radiosterilization technique to process potatoes, onions and marine foods for storage are ready for exploitation. Processes and equipment have been developed for production of electrolytic hydrogen, electrothermal phosphorus and desalinated water. Indigenously manufactured components and materials are now being used for the nuclear energy programme. Indian nuclear power programme strategy is to build heavy water reactors and to utilise their byproduct plutonium and depleted uranium to feed fast breeder reactors which will produce more fissile material than burnt. Finally a special mention has been made of the manpower development programme of the BARC. BARC has established a training school in 1957 giving advanced training in physics, chemistry and various branches of engineering and metallurgy

  10. Experimental atomic and molecular physics research

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    The Atomic Physics research in the Physics Division consists of five ongoing experimental programs: dissociation and other interactions of energetic molecular ions in solid and gaseous targets; beam-foil research and collision dynamics of heavy ions; photoionization-photoelectron research; spectroscopy of free atoms and molecules, high precision laser-rf double-resonance spectroscopy with atomic and molecular beams; and Moessbauer effect research

  11. List of participants

    Indian Academy of Sciences (India)

    Banerjee S, Department of Atomic Energy, Bhabha Atomic Research Centre, Mumbai .... Gupta Chintan, LMPD, Raja Ramanna Centre for Advanced Technology, ... Kale Mayuri, Department of Biotechnology, M.B. Khalsa College, Indore 452 ...

  12. Biomedical and environmental applications of laser-induced ...

    Indian Academy of Sciences (India)

    2014-02-08

    Feb 8, 2014 ... 2Laser & Plasma Technology Division, Bhabha Atomic Research ... Also, LIBS technique has the advantage of measuring several elements simultaneously up .... Atomic Energy (DAE), Govt. of India for financial assistance.

  13. Fulltext PDF

    Indian Academy of Sciences (India)

    trained theoretical physicist Homi Bhabha, who returned to India in 1939. Bhabha wanted to establish a premier scientific research institution in the country of his birth, and in pursuit of this ... Atomic Energy. The initial areas of ... Fermilab in the U.S.A. The collaboration at Fermilab was involved in the recent discovery of a ...

  14. Decorated-box-diagram contributions to Bhabha scattering. Pt. 1

    International Nuclear Information System (INIS)

    Faeldt, G.; Osland, P.

    1994-01-01

    We evaluate, in the light-energy limit, s>>vertical stroke tvertical stroke >>m 2 >>λ 2 , the sum of amplitudes corresponding to a class of Feynman diagrams describing two-loop virtual photonic corrections to Bhabha scattering. The diagrams considered are box and crossed-box diagrams with an extra photon decorating one of the fermion lines. The mathematical method employed is that of Mellin transforms. In the eikonal approximation, this sum of two-loop amplitudes has previously been evaluated, and found to be equal to the sum of the box and crossed-box amplitudes, multiplied by the electric form factor of the electron. We obtain a similar factorization, but with the form factor replaced by another expression involving the logarithms log(λ 2 /m 2 ) and log(λ 2 /vertical stroke tvertical stroke ). (orig.)

  15. Electroweak coupling measurements from polarized Bhabha scattering at the Z0 resonance

    International Nuclear Information System (INIS)

    Pitts, K.T.

    1994-03-01

    The cross section for Bhabha scattering (e + e - → e + e - ) with polarized electrons at the center of mass energy of the Z 0 resonance has been measured with the SLD experiment at the Stanford Linear Accelerator Center during the 1992 and 1993 runs. The electroweak couplings of the electron are extracted. At small angles the measurement is done in the SLD Silicon/Tungsten Luminosity Monitor (LMSAT). A detailed description of the design, construction, commissioning and operation of the LMSAT is provided. The integrated luminosity for 1992 is measured to be L = 420.86±2.56 (stat)±4.23 (sys) nb -1 . The luminosity asymmetry for polarized beams is measured to be A LR (LUM) = (1.7 ± 6.4) x 10 -3 . The large angle polarized Bhabha scattering reveals the effective electron vector and axial vector couplings to the Z 0 through the measurement of the Z 0 → e + e - partial width, Γ ee , and the parity violation parameter, A e . From the combined 1992 and 1993 data the effective electron vector and axial vector couplings are measured to be bar g v e = -0.0495±0.0096±0.0030, and bar g α e = -0.4977±0.0035±0.0064 respectively. The effective weak mixing angle is measured to be sin 2 θ W eff = 0.2251±0.0049±0.0015. These results are compared with other experiments

  16. Managing public perceptions about atomic energy in India

    International Nuclear Information System (INIS)

    Shankar, Ravi; Malhotra, S.K.

    2009-01-01

    Dr. Homi Jehangir Bhabha, in his presidential address at the first International Conference on the Peaceful Uses of Atomic Energy in Geneva in August 1955 had said 'Acquisition by man of the knowledge of how to release and use atomic energy must be recognized as the third epoch of human history'. Indeed during the last six decades, Atomic Energy has touched practically all aspects of human life and has registered its presence in almost every part of the globe. In India too, the Department of Atomic Energy set up in 1954, has been successfully pursuing a programme with a mandate to generate electricity, produce radioisotopes and develop radiation technologies with application in the areas of healthcare, food security, industry, water management, environment, R and D etc. Besides, DAE is also engaged in developing advanced technologies such as lasers, accelerator, robotics, fast computing and biosciences

  17. Thorium fuel cycle development activities in India (a decade of progress: 1981-1990)

    International Nuclear Information System (INIS)

    Basu, T.K.; Srinivasan, M.

    1990-01-01

    The report comprises of 72 papers on various aspects of thorium fuel cycle. These papers report the research work carried out at the Bhabha Atomic Research Centre, Bombay and other units of the Department of Atomic Energy during the decade 1981-1990. figs., tabs

  18. Lorentz violation, gravitoelectromagnetism and Bhabha scattering at finite temperature

    Science.gov (United States)

    Santos, A. F.; Khanna, Faqir C.

    2018-04-01

    Gravitoelectromagnetism (GEM) is an approach for the gravitation field that is described using the formulation and terminology similar to that of electromagnetism. The Lorentz violation is considered in the formulation of GEM that is covariant in its form. In practice, such a small violation of the Lorentz symmetry may be expected in a unified theory at very high energy. In this paper, a non-minimal coupling term, which exhibits Lorentz violation, is added as a new term in the covariant form. The differential cross-section for Bhabha scattering in the GEM framework at finite temperature is calculated that includes Lorentz violation. The Thermo Field Dynamics (TFD) formalism is used to calculate the total differential cross-section at finite temperature. The contribution due to Lorentz violation is isolated from the total cross-section. It is found to be small in magnitude.

  19. Software development agreement between CERN and the Indian Department of Atomic Energy

    CERN Multimedia

    Patrice Loïez

    2003-01-01

    The development and prototyping work for the LHC computing facility is being organised as a project that includes many scientific institutes and industrial partners, coordinated by CERN. The project is nicknamed LCG (after LHC Computing Grid). Addendum No. 1 to the Protocol dated 24/09/02 to the 1991 co-operation agreement between CERN and the Department of Atomic Energy (DAE) of the Government of India defines the collaboration between CERN and DAE on software development for the LCG Prototype Project. Photo 01: Signing the addendum are G. Govindrajan (left), Director of the Electronics and Instrumentation Group at the Bhabha Atomic Research Centre, Mumbai, India and Dr. Hans Hoffmann, CERN Director for Technology Transfer and for Scientific Computing. Looking on are Christoph Eck (far left), resource manager of the LCG Project and Les Robertson, LCG Project Leader. Photo 02: (left to right) Christoph Eck, resource manager of the LCG Project; G. Govindrajan, Director of the Electronics and Instrumentation G...

  20. Realizing vision of Dr. Homi Bhabha - first stage of nuclear power programme

    International Nuclear Information System (INIS)

    Bhardwaj, S.A.

    2009-01-01

    Full text: Dr. Homi Bhabha had a vision to harness nuclear energy for peaceful uses of mankind. Considering typical nuclear resources in the country, Dr Bhabha conceptualized the three stage nuclear power programme and gave a road map for its implementation. The robustness of the vision is such that the programme has not undergone a change in last five decades. The first stage of the three-stage programme, based on natural uranium fuelled Pressurised Heavy Water Reactors (PHWRs) has been precursor to the nuclear power programme in India. This paper describes the developments in the last five decades. The establishment of research laboratories and reactors, training school for the manpower needs, industrial infrastructure and establishment of regulatory framework are briefly described. Setting up of first nuclear power reactor in the country as turnkey project and experience on operation of these reactors in India are discussed. The learning phase consisting of setting up of first PHWR in technical collaboration with Canada and design of 220 MWe PHWRs for MAPS is described. The safety features consistent with development of nuclear power globally were incorporated in Narora design and this became a standardized 220 MWe reactor of which many PHWRs of 220 MWe were set up. The experiences with operation of these small size reactors leading to internationally best operational experience in the year 2002 are discussed. The efforts of plant life extension, in-core maintenance jobs and other renovation and modernization jobs are discussed. The increase in unit size of 540 MWe, of which two reactors have been already set up, is explained in detail. The economies of scale demanded increase in the unit size and design of 700 MWe PHWR has been established and the salient features of this design are also discussed in detail. Eight reactors of 700 MWe each would complete the first stage of about 10,000 MWe PHWR programme and plans for setting up of these reactors are discussed

  1. BARC solution for burn injuries

    CERN Multimedia

    2003-01-01

    The Bhabha Atomic Research Centre (BARC), has developed Hydrogel which is expected to be mass marketed soon in India. Dr Anil Kakodkar, Chairman of Atomic Energy Commission, said the product not only heals the wound, but also eliminates scars (1/2 page).

  2. Current programmes on physical metallurgy and related areas in BARC

    International Nuclear Information System (INIS)

    1994-01-01

    Current research and development programmes on physical metallurgy and related areas from the following Divisions of Bhabha Atomic Research Centre are included in this report : Atomic Fuels Division, High Pressure Physics Division, Metallurgy Division, Radio Metallurgy Division, Solid State Physics Division. Important publications corresponding to each activity have also been listed. (author)

  3. The law for the Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    1985-01-01

    The Act for Japan Atomic Energy Research Institute has been promulgated anew. Contents are the following : general rules, officials, advisors and personnel, duties, financial affairs and accounts, supervision, miscellaneous rules, penal provisions, and additional rules. (In the additional rules, the merger into JAERI of Japan Nuclear Ship Research and Development Agency is treated.) Japan Atomic Energy Research Institute conducts research etc. for the development of atomic energy comprehensively and efficiently, thereby contributing to the promotion of atomic energy research, development and utilization, according to the Atomic Energy Fundamental Act. Duties are atomic energy basic and application research, reactor relation, training of the personnel, RIs relation, etc. (Mori, K.)

  4. Electroweak coupling measurements from polarized Bhabha scattering at the Z{sup 0} resonance

    Energy Technology Data Exchange (ETDEWEB)

    Pitts, K.T.

    1994-03-01

    The cross section for Bhabha scattering (e{sup +}e{sup {minus}} {yields} e{sup +}e{sup {minus}}) with polarized electrons at the center of mass energy of the Z{sup 0} resonance has been measured with the SLD experiment at the Stanford Linear Accelerator Center during the 1992 and 1993 runs. The electroweak couplings of the electron are extracted. At small angles the measurement is done in the SLD Silicon/Tungsten Luminosity Monitor (LMSAT). A detailed description of the design, construction, commissioning and operation of the LMSAT is provided. The integrated luminosity for 1992 is measured to be L = 420.86{plus_minus}2.56 (stat){plus_minus}4.23 (sys) nb{sup {minus}1}. The luminosity asymmetry for polarized beams is measured to be A{sub LR}(LUM) = (1.7 {plus_minus} 6.4) {times} 10{sup {minus}3}. The large angle polarized Bhabha scattering reveals the effective electron vector and axial vector couplings to the Z{sup 0} through the measurement of the Z{sup 0} {yields} e{sup +}e{sup {minus}} partial width, {Gamma}{sub ee}, and the parity violation parameter, A{sub e}. From the combined 1992 and 1993 data the effective electron vector and axial vector couplings are measured to be {bar g}{sub v}{sup e} = {minus}0.0495{plus_minus}0.0096{plus_minus}0.0030, and {bar g}{sub {alpha}}{sup e} = {minus}0.4977{plus_minus}0.0035{plus_minus}0.0064 respectively. The effective weak mixing angle is measured to be sin{sup 2}{theta}{sub W}{sup eff} = 0.2251{plus_minus}0.0049{plus_minus}0.0015. These results are compared with other experiments.

  5. Electronic structure and superconductivity of MgB2

    Indian Academy of Sciences (India)

    Unknown

    High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. Abstract. Results ... compared to the experimentally determined values of these quantities. ... that spectroscopies which probe the superconducting gap.

  6. International Advisory Committee R Balasubramanian, The Institute ...

    Indian Academy of Sciences (India)

    Deepak Dhar, Tata Institute of Fundamental Research, Mumbai, India. Hendrik B Geyer, University of Stellenbosch, South Africa. Sanjay Jain, University of Delhi, India. S Kailas, Bhabha Atomic Research Centre, Mumbai, India. P K Kaw, Institute of Plasma Research, Gandhinagar, India. Narendra Kumar, Raman Research ...

  7. Uncertainty modelling of atmospheric dispersion by stochastic ...

    Indian Academy of Sciences (India)

    by stochastic response surface method under aleatory ... 3Health Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India e-mail: ...... Brandimarte P 2011 Quantitative methods: An introduction for business management.

  8. Report on atomic structure research 1961-1990

    International Nuclear Information System (INIS)

    Fawcett, B.C.

    1990-07-01

    This report documents the atomic-structure research carried out during the period 1961-90. The contributions are in two main areas. The first comprises original line classifications of spectra of highly ionized atoms including identifications of a major proportion of newly observed lines in the solar far ultraviolet and soft X-ray spectrum. The second consists of theoretical calculations of atomic data such as oscillator strengths, wavelengths, energy levels and their composition. These were calculated with advanced atomic-structure codes and cover most solar abundant ions. A new method was applied to collision calculations. Research in this field, presently conducted at Rutherford Appleton Laboratory (RAL), was initiated in the United Kingdom Atomic Energy Authority (UKAEA) at Harwell in 1960. It continued under the UKAEA at Culham Laboratory in 1962 and until 1986 when staff were taken over by Science and Engineering Research Council (SERC) and later transferred to RAL in 1981. (author)

  9. Fulltext PDF

    Indian Academy of Sciences (India)

    1Refueling Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. 2Computational ... at the atomistic scales for crystal copper (Cu) has the same qualitative behaviour as the DFRACT model, albeit ... tionally investigated by molecular dynamics which is well suited to study many millions of atoms for ...

  10. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... A Das3 S K Paranjpe3 4. Department of Physics, M.L. Sukhadia University, Udaipur 313 002, India; Department of Physics, University of Rajasthan, Jaipur 302 004, India; Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; NAPC, International Atomic Energy Agency, Vienna, Austria ...

  11. IAEA-RCA training course on in-service inspection of research reactors

    International Nuclear Information System (INIS)

    2002-01-01

    Bhabha Atomic Research Centre (BARC) has acquired a wide range of experience for over four decades in design, construction, operation and maintenance of research reactors. The two-week training course on In-Service Inspection of Research Reactors (ISI) has greatly increased the awareness in the field of ISI of Research Reactors. The training course has been formulated so as to cover most of the topics relevant to ISI of research reactors. Important topics such as rationale for in-service inspection, material degradation mechanisms, non-destructive examination techniques, design evaluation of flaws and radiological, codal and regulatory aspects of ISI for research reactors were covered. Lectures on ISI of elastomeric materials and concrete structures, which are generally used in the construction of reactors have also been included in the course. Papers relevant to INIS are indexed separately

  12. Setting up of high-performance laser-induced breakdown

    Indian Academy of Sciences (India)

    2Laser and Plasma Technology Division, Bhabha Atomic Research Centre, ... analysis include environmental samples, biological samples, radioactive waste mate- ... applicability to different types of samples (solid, liquid and gas) make it ...

  13. Achieving Homi Bhabha's vision for the future of India

    International Nuclear Information System (INIS)

    Lauvergeon, Anne

    2009-01-01

    Full text: More than four decades ago, as Dr Homi Jehangir Bhabha pronounced the concept of the 3-stage nuclear program, he was addressing the need for nuclear energy in developing countries. His vision was to develop Indian nuclear infrastructure, considering the lack of domestic energy resources and the need to develop new technology. Nuclear Energy has a great role to play in India and India can now play a key role in the development of nuclear energy. If the planned role of the thorium resource makes the 3-stage program unique, France and India share the same vision about the overall role of nuclear energy. They both consider nuclear as part of the solution for a sustained economic growth in a carbon-constrained world, addressing climate change issues. France and India share the same nuclear history: France was one of the first countries to start cooperation with Indian nuclear institutes in the early 50's (CEA-TIFR agreement in 1951) and when international nuclear trade with India eventually resumed at the end of 2008, AREVA was the first supplier of natural uranium to DAE for use in NPCIL safeguarded reactors. India has great plans to develop its infrastructure and add electric generation capacities. In addition to the domestic effort and the strengths of the existing nuclear industrial and scientific base in the country, India can draw great benefits from cooperating with foreign reactor vendors: It will help capacity addition going faster and keeps in line with the 3-stage program. Nuclear power is a long-term investment that India can afford. The intrinsic benefits of larger size imported reactors in rapidly growing economies are manifold: benefits to the grid, ability to meet pace of demand faster, ability to place reactors closer to power utilization centers-all this has a true value, also called positive externalities. Efficient cooperation between Indian and foreign industries and efficient cooperation in project management will be key to achieve these

  14. Network of siren, public address and display system to preparedness and response for nuclear emergencies

    International Nuclear Information System (INIS)

    Joshi, G.H.; Padmanabhan, N.; Raman, N.; Pradeepkumar, K.S.; Sharma, D.N.; Abani, M.C.

    2003-01-01

    For an effective emergency response and implementation of counter measures, communication during a nuclear emergency is a very important aspect. The declaration of a nuclear emergency must be immediately conveyed to all those working in the plant and around the nuclear site. Besides this, the nature of emergency also needs to be conveyed unambiguously along with corresponding counter measures, such as stay in, evacuation or all clear signal for the relevant plants. This requirement has necessitated the need for a networked signaling system. Based on this requirement, a microcontroller based signaling and a telephone/wireless based communication and display system has been designed at Bhabha Atomic Research Centre. It is proposed to be used as a part of emergency preparedness and response programme at the nuclear facility sites. As per the design made for Bhabha Atomic Research Centre, Trombay site, each plant or area in the site is identified by a unique identification code. The main Site Emergency Control Centre/Emergency Response Centre at Mod. Labs. selectively calls the various plants and declares the nature of emergency to be followed In that plant/area through different siren signals along with display and announcement of instructions. This paper describes the details of the system that is designed for Bhabha Atomic Research Centre, Trombay site and proposed for other nuclear power plant sites. (author)

  15. Associateship | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Home; Fellowship; Associateship. Associate Profile. Period: 1988–1991. Jain, Dr V K . Date of birth: 1 August 1956. Specialization: Inorganic Chemistry Address during Associateship: Scientific Officer, Chemistry Division, Bhabha Atomic Research ...

  16. Spectroscopy Division Progress report for 1977-79

    International Nuclear Information System (INIS)

    Saksena, G.D.; Naik, R.C.

    1979-01-01

    An account of the activities of the Spectroscopy Division of the Bhabha Atomic Research Centre, Bombay, covering the period 1977-79 is given. The activities broadly cover the areas of spectrochemical analysis, research and development programmes in the fields of atomic and molecular spectroscopy and design and fabrication of high precision optical instruments and electronic components required for the above programmes. (K.B.)

  17. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... A Das2 Bipin K Srivastava1 Anjali Krishnamurthy1 S K Paranjpe2 3. Department of Physics, University of Rajasthan, Jaipur 302 004, India; Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; NAPC, International Atomic Energy Agency, Wagramer Strasse 5, A-1400, Vienna, Austria ...

  18. Kakodkar, Dr Anil

    Indian Academy of Sciences (India)

    Mumbai), M.Sc. (Nottingham), D.Sc. (h.c.), FNAE, FNASc. Date of birth: 11 November 1943. Specialization: Structural Mechanics and Nuclear Engineering Address: Satish Dhawan Chair of Engineering Eminence, Bhabha Atomic Research Centre, ...

  19. Characterisation of lactic dehydrogenase from Lactobacillus casei

    Indian Academy of Sciences (India)

    tribpo

    Biochemistry and Food Technology Division, Bhabha Atomic Research Centre,. Bombay ... The cultures of L. casei ATCC 7469 were maintained on a medium ... 2-mercaptoethanol and were extracted using an Aminco–French pressure cell at.

  20. Fulltext PDF

    Indian Academy of Sciences (India)

    , Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai. 400 085, India. Jain P, Physics Department, Indian Institute of Technology Kanpur, Kanpur 208016,. India. Jain B K, Department of Physics, University of Bombay, ...

  1. Spatio-temporal distribution of 3H in air moisture around Kakrapar Atomic Power Station

    International Nuclear Information System (INIS)

    Joshi, C.P.; Patra, A.K.; Jain, A.K.; Ravi, P.M.; Sarkar, P.K.; Gadhia, M.

    2012-01-01

    Tritium ( 3 H) is the only radioactive isotope of hydrogen. It decays to helium by emission of beta particle with a maximum energy of 18.6 keV. 3 H is most environmentally mobile radionuclide. To accomplish the task of estimating human exposure to tritium, it is necessary to know the tritium concentration in the atmosphere. Environmental Survey Laboratory (ESL) of Health Physics Division (HPD) of Bhabha Atomic Power Station (BARC) located at Kakrapar Atomic Power Station (KAPS) site is regularly monitoring the activity of tritium in the environment to ensure the safety of the public. This paper presents the result of analysis of tritium in atmospheric environment covering an area up to 30 km radius around KAPS site

  2. Estimation of dynamic properties of attractors observed in hollow ...

    Indian Academy of Sciences (India)

    Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Trombay, ... online control have been reported based on time series, power spectrum, .... nals are different due to their different intrinsic dependence in terms of micro– ...

  3. Development of scintillation and luminescent detectors at BARC

    International Nuclear Information System (INIS)

    Pradhan, A.S.

    1991-01-01

    Research and development work carried out at the Bhabha Atomic Research Centre, Bombay, in the field of radiation detectors for various applications, particularly in the area of scintillation and luminescent detectors is reviewed. The review is presented in the form of 7 articles. (author). figs

  4. Synthesis of nanosized silver colloids by microwave dielectric heating

    Indian Academy of Sciences (India)

    Unknown

    Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre,. Mumbai 400 085 ... wave heating is well known in the food industry and of late has ... AgNO3 (BDH), ethylene glycol (UV spectroscopy grade, Spectro-.

  5. RF properties of 700 MHz, β = 0.42 elliptical cavity for high current ...

    Indian Academy of Sciences (India)

    Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, ... has been taken up as a part of the accelerator-driven subcritical system project. ... cavity's peak electric and magnetic fields, power dissipation Pc, quality factor Q and.

  6. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Numerical simulation with finite element and artificial neural network of ball ... The methodology evolved in this work can be extended to predict material properties ... Reactor Safety Division, Bhabha Atomic Research Centre (BARC), Trombay, ...

  7. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Arti Hadap1 K C Mittal2. General Engineering Department, Terna Engineering College, Nerul, Navi Mumbai 400 706, India; Accelerator and Pulsed Power Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India ...

  8. (YSZ) powders

    Indian Academy of Sciences (India)

    Unknown

    109–114. © Indian Academy of Sciences. 109 ... Materials Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India .... pensions of 900°C calcined YSZ powders. .... The sintered density data of the compacts (sintered at.

  9. Artificial intelligence and applications relevant to nuclear industries

    International Nuclear Information System (INIS)

    Haridasan, G.; Das, Debashis

    1987-01-01

    Possible areas of application of artificial intelligence systems such as machine vision systems and expert systems are indicated. The work underway in this field at the Bhabha Atomic Research Centre, Bombay is briefly mentioned. (M.G.B.)

  10. Chemical shift of U L3 edges in different uranium compounds ...

    Indian Academy of Sciences (India)

    Administrator

    by X-ray absorption spectroscopy with synchrotron radiation. D JOSEPH†, C NAYAK††, ... Bhabha Atomic Research Centre, Mumbai 400 085, India. MS received 28 .... As has been discussed in the 'Introduction' section, the above edge shift ...

  11. Effect of Particle Acceleration Process on the Flare Characteristics of ...

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging) 1461 1996 Oct 15 13:05:22

    J. Astrophys. Astr. (2002) 23, 95–99. Effect of Particle Acceleration Process on the Flare Characteristics of. Blazars. S. Bhattacharyya, S. Sahayanathan & C. L. Kaul Nuclear Research Laboratory,. Bhabha Atomic Research Centre, Mumbai 400 085, India. Abstract. Following the kinetic equation approach, we study the flare.

  12. Achieving quality assurance in the Indian programme

    International Nuclear Information System (INIS)

    Challappa, S.; Alekal, R.S.; Murthy, G.S.K.; Palaniappan, M.

    1984-01-01

    Much of the equipment for India's diverse nuclear programme has come from the central workshops of the Bhabha Atomic Research Centre near Bombay. Engineers from the central workshops describe how quality assurance has been put into practice. (author)

  13. Spare parts management for nuclear research reactors [Paper No.: I-14

    International Nuclear Information System (INIS)

    Kini, M.P.

    1981-01-01

    Most of the equipment installed at CIRUS and other reactors are imported units. CIRUS reactor is 20 years old and with present problems for obtaining spare parts for this equipment, indigenous effort in procurement has become imperative. In the absence of specifications and drawings for most of the components, the task of indigenous procurement has become quite demanding. The efforts put by Reactor Operations Division of the Bhabha Atomic Research Centre, Bombay in locating local manufacturers who are willing to fabricate in small quantities of spare parts to specifications and the difficulties involved is the theme of this paper. The paper also covers the efforts on equipment replacement, its success and failures. (author)

  14. Online Decision Support System (IRODOS) - an emergency preparedness tool for handling offsite nuclear emergency

    International Nuclear Information System (INIS)

    Vinod Kumar, A.; Oza, R.B.; Chaudhury, P.; Suri, M.; Saindane, S.; Singh, K.D.; Bhargava, P.; Sharma, V.K.

    2009-01-01

    A real time online decision support system as a nuclear emergency response system for handling offsite nuclear emergency at the Nuclear Power Plants (NPPs) has been developed by Health, Safety and Environment Group, Bhabha Atomic Research Centre (BARC), Department of Atomic Energy (DAE) under the frame work of 'Indian Real time Online Decision Support System 'IRODOS'. (author)

  15. Beam optics of the folded tandem ion accelerator at BARC

    Indian Academy of Sciences (India)

    searches of Bhabha Atomic Research Centre envisaged the need to convert the ... gap between chamber and pole) reduces the acceptance of the pole gap to 9 mm. ... negative ions that are selected through the injector magnet pass through ...

  16. Nuclear research centres - Their evolution in the Indian context

    International Nuclear Information System (INIS)

    Kakodkar, A.; Grover, R.B.

    2001-01-01

    In a developing country, the role of the nuclear research centres (NRC) is quite large as it involves research, development, demonstration and deployment. The Bhabha Atomic Research Centre (BARC), the mother institution for all nuclear activities in India, has played this role for more than 40 years. With the successful deployment, the subsequent growth and management, both in the power and non-power sectors, is carried out by public sector enterprises. BARC continues to provide R and D support for improving performance and safety, technologies for repair and refurbishment, plant life management and evolutionary changes in the plant design. It has the responsibility of managing the backend of the fuel cycle. BARC has also been the nucleus for new research centres devoted to the development of fast reactors, accelerators and lasers. National NRCs, which provide exciting R and D opportunities with future orientation, provide assurance of availability of requisite skills and expertise while at the same time working for the futuristic objectives of the country. (author)

  17. Summary of informal meeting on ''facilities for atomic physics research with highly ionized atoms''

    International Nuclear Information System (INIS)

    Cocke, C.L.; Jones, K.W.

    1984-01-01

    An informal meeting to discuss ''Facilities for Atomic Physics Research with Highly Ionized Atoms'' was held during the APS DEAP meeting at the University of Connecticut on May 30, 1984. The meeting was motivated by the realization that the status of facilities for studies of highly ionized atoms is unsettled and that it might be desirable to take action to ensure adequate resources for research over the whole range of charge states and energies of interest. It was assumed that the science to be done with these beams has been amply documented in the literature

  18. Analytical Chemistry Division : annual report for the year 1980

    International Nuclear Information System (INIS)

    Sathe, R.M.

    1981-01-01

    The research and development activities of the Analytical Chemistry Division of the Bhabha Atomic Research Centre, during 1980 are reported in the form of abstracts. Various methods nuclear, spectral, thermal, electrochemical ion exchange developed for chemical analysis are described. Solvent extraction studies are also reviewed. (M.G.B.)

  19. Radiochemistry Division annual progress report for 1977

    International Nuclear Information System (INIS)

    Iyer, R.H.; Natarajan, P.R.

    1979-01-01

    The research and development work carried by the Radiochemistry Division of the Bhabha Atomic Research Centre, Bombay, during the calendar year 1977 in the areas of reactor chemistry, actinide chemistry, process chemistry of neptunium and plutonium-239, radioanalytical chemistry and nuclear chemistry has been reported. (M.G.B.)

  20. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    In this paper we study Bombay stock exchange (BSE) index financial time series for fractal and multifractal behaviour. We show that BSE index time series is monofractal and can be represented by a fractional Brownian motion. Author Affiliations. Ashok Razdan1. Nuclear Research Laboratory, Bhabha Atomic Research ...

  1. Vibro-thermal disinfestor for preservation of food grains

    International Nuclear Information System (INIS)

    Chander, Ramesh; Dey, Chandan; Singh, Manjit

    2009-01-01

    Division of Remote Handling and Robotics (DRHR) along with Food Technology Division of Bhabha Atomic Research Centre has developed a simple vibro-thermal based system for disinfestations of food grains. This paper brings out the technical details of the system. (author)

  2. Multiphoton dissociation/ionisation of dimethyl sulphide (CH3SCH3 ...

    Indian Academy of Sciences (India)

    Unknown

    Novel Materials and Structural Chemistry Division, Bhabha Atomic Research. Centre ... studies at 355 nm show a (2 + 1) REMPI process for the formation of parent ion. Peaks at m/e = 46, .... plate detector (Galileo Inc., Model 3025). The signal ...

  3. Estimation of radon concentration in various operating areas of a reprocessing facility

    International Nuclear Information System (INIS)

    Jayan, M.P.; Ashok Kumar, P.; Raman, Anand; Gopalakrishnan, R.K.

    2010-01-01

    This paper reports 222 Rn concentration of various operating areas of a reprocessing facility and also the U-processing area, measured using a microcontroller based Continuous Radon Monitor (CRM) built indigenously by Radiation Safety Systems Division, Bhabha Atomic Research Centre

  4. Journal of Genetics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Department of Agricultural Botany,Post Graduate Institute, Dr Panjabrao Deshmukh Krishi Vidyapeeth, Akola 444 104, India; Department of Plant Pathology, Post Graduate Institute, Dr Panjabrao Deshmukh Krishi Vidyapeeth, Akola 444 104, India; Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research ...

  5. A comparative study of the spectra recorded at RRCAT synchrotron ...

    Indian Academy of Sciences (India)

    2013-01-09

    Jan 9, 2013 ... 2Applied Spectroscopy Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. ∗ ... It can be applied not only to crystals, but ... is used and the transmitted beam intensity from the sample is recorded on a position-.

  6. Fulltext PDF

    Indian Academy of Sciences (India)

    Guthikonda Nagaraju, School of Physics, University of Hyderabad,. Hyderabad, India. Haldar Sudip Kumar, Lady Brabourne College, Kolkata, India. Jagtap B N, Bhabha Atomic Research Centre, Mumbai, India. Jain Jinesh, National Energy Technology Laboratory, Mississippi, USA. Jane Alam Mohammad, Aligarh Muslim ...

  7. Dey, Dr Gautam Kumar

    Indian Academy of Sciences (India)

    Date of birth: 8 June 1957. Specialization: Phase Transformations in Metals & Alloys, Electron Microscopy and Metallic Glasses & Nanocrystalline Materials Address: Head, Materials Science Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, Maharashtra Contact: Office: (022) 2559 5063. Residence: ...

  8. A Measurement of the Effective Electron Neutral Current Coupling Parameters from Polarized Bhabha Scattering at the Z0 Resonance

    Energy Technology Data Exchange (ETDEWEB)

    Langston, Matthew D

    2003-07-15

    The effective electron neutral current coupling parameters, {bar g}{sub V}{sup 3} and {bar g}{sub A}{sup c}, have been measured from analyzing 43,222 polarized Bhabha scattered events (e{sup +}e{sup -} {yields} e{sup +}e{sup -}) using the SLAC Large Detector (SLD) experiment at the Stanford Linear Accelerator Center (SLAC). The SLAC Linear Collider (SLC) produced the Bhabha scattered events by colliding polarized electrons, with an average polarization of 74%, with unpolarized positrons at an average center-of-mass energy of 91.25 GeV. The analysis used the entire SLD data sample collected between 1994 and 1998 (the last year the SLD detector collected data). The results are {bar g}{sub V}{sup e} = -0.0469 {+-} 0.0024 (stat.) {+-} 0.0004 (sys.); {bar g}{sub A}{sup e} = -0.5038 {+-} 0.0010 (stat.) {+-} 0.0043 (sys.). All Bhabha scattered events within the angular acceptance of the SLD calorimeter subsystems were used in this analysis, including both small-angle events (28 mrad. {le} theta {le} 68 mrad.) measured by the Silicon/Tungsten Luminosity Monitor (LUM), and large angle events (0 {le} |cos{theta}| {le} 0.9655) measured by the Liquid Argon Calorimeter (LAC). Using all of the data in this manner allows for the high-precision measurement of the luminosity provided by the LUM to constrain the uncertainty on {bar g}{sub V}{sup e} and {bar g}{sub A}{sup e}. The measured integrated luminosity for the combined 1993 through 1998 SLD data sample is L{sub Integrated} = 19,247 {+-} 17 (stat.) {+-} 146 (sys.) nb{sup -1}. In contrast with other SLD precision measurements of the effective weak mixing angle, which are sensitive to the ratio {bar g}{sub V}{sup e}/{bar g}{sub A}{sup e}, this result independently determines {bar g}{sub V}{sup 3} and {bar g}{sub A}{sup c}. The analysis techniques to measure {bar g}{sub V}{sup 3} and {bar g}{sub A}{sup c} are described, and the results are compared with other SLD measurements as well as other experiments.

  9. Electron beam processing in wire and cables and heat shrinkable products

    International Nuclear Information System (INIS)

    Tikku, V.K.

    2001-01-01

    In this paper in a general manner the commercially successful E-beam crosslinking in wire and cable and heat shrinkable products being manufactured first time in India are illustrated. We at NICCO in India have established first industrial electron accelerator of 150 kW power with 3 MeV beam energy and 50 mA beam current, near Calcutta; the facility is likely to be commissioned by January, 2002. This facility was conceived and the developmental work was carried out with the active support of our R and D partners at Rubber Technology Centre, IIT, Kharagpur and Bhabha Atomic Research Centre, Mumbai. The polymeric compound developments, its extrusion on to the cable samples and radiation crosslinking were successfully achieved in this joint R and D efforts. We have already executed the developmental order with the know-how developed indigenously with our research partners and using the 2 MeV electron accelerator facility at Bhabha Atomic Research Centre, Mumbai. (author)

  10. Structural changes during the unfolding of Bovine serum albumin in ...

    Indian Academy of Sciences (India)

    Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. E-mail: ... The protein samples were equilibrated in D2O for 24 h for the ... This assumption is true as the BSA solutions used in the experiments were suffi-.

  11. Cavity ring-down technique for measurement of reflectivity of high ...

    Indian Academy of Sciences (India)

    Laser & Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085,. India. *Corresponding author. E-mail: gsridhar@barc.gov.in. Abstract. A simple, accurate and reliable method for measuring the reflectivity of laser- ... Keywords. Cavity ring-down method; reflectivity measurement; optical resonator.

  12. Use of health physics in radiation medicine and its status in India

    International Nuclear Information System (INIS)

    Srivastva, R.N.L.; Jauhari, R.K.

    1993-01-01

    Science of health physics has assumed importance in the use of complicated radiation equipment and procedure of radiotherapy. In India there are training facilities in health physics available at Bhabha Atomic Research Centre and in Bombay University. They are described (R.G.)

  13. Numerical simulation with finite element and artificial neural network ...

    Indian Academy of Sciences (India)

    Reactor Safety Division, Bhabha Atomic Research Centre (BARC), Trombay, ... their evaluated property is verified with experimental tensile specimen results. An ... tensile strength, strength coefficient, true stress–true strain curves and strain ... Haggag & Nansted (1989) also described a simple technique for estimating the ...

  14. Future atomic physics researches at HIRFL-CSR

    International Nuclear Information System (INIS)

    Cai Xiaohong; Xia Jiawen; Zhan Wenlong

    1999-01-01

    A new storage ring system, HIRFL-CSR, is now in construction in the National Laboratory of Heavy Ion Research Facility of Lanzhou, China. The new facility consists of a main ring (CSRm) and an experimental ring (CSRe). With the flexibility of the production and the investigation of highly charged ions and radioactive ion beams the new HIRFL-CSR facility will make many frontier atomic physics researches possible in near future. The future physics researches at the HIRFL-CSR are now under consideration. In this paper an overview of the HIRFL-CSR project is given, and the main atomic physics programs to be carried at the HIRFL-CSR are presented. (orig.)

  15. BARC progress report - 1996

    International Nuclear Information System (INIS)

    1997-01-01

    This report summarises the various activities and research and development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and paper presented at various conferences, symposia, workshops etc and papers published in various journals by the staff members of the different Divisions are also given. (author)

  16. BARC progress report - 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-31

    This report summarises the various activities and research and development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and paper presented at various conferences, symposia, workshops etc and papers published in various journals by the staff members of the different Divisions are also given. (author)

  17. Technology transfer from nuclear research

    International Nuclear Information System (INIS)

    1989-01-01

    A number of processes, components and instruments developed at the Bhabha Atomic Research Centre, (BARC), Bombay, find application in industry and are available for transfer to private or public sector undertakings for commercial exploitation. The Technology Transfer Group (TTG) constituted in January 1980 identifies such processes and prototypes which can be made available for transfer. This catalogue contains brief descriptions of such technologies and they are arranged under three groups, namely, Group A containing descriptions of technologies already transferred, Group B containing descriptions of technologies ready for transfer and Group C containing descriptions of technology transfer proposals being processed. The position in the above-mentioned groups is as on 1 March 1989. The BARC has also set up a Technology Corner where laboratory models and prototypes of instruments, equipment and components are displayed. These are described in the second part of the catalogue. (M.G.B.)

  18. Fulltext PDF

    Indian Academy of Sciences (India)

    Back Birger, Argonne National Laboratory, 9700 S. Cass Avenue, Argonn,. Illinois 60439, USA. Balabanski Dimiter L, LFIN-HH, Reactorului Str. 30, Bucharest-Magurele. 77125, Romania. Balasubramaniam M, Bharathiar University, Coimbatore 641 046, India. Ballal B R, Bhabha Atomic Research Centre, Mumbai 400 085, ...

  19. Industry to benefit from India's global projects tie-ups

    CERN Multimedia

    2007-01-01

    "Indian Industry should take advantage of the country's involvement in prestigious international projects like ITER and work with top scientific institutions to meet the huge demand for ultra vacuum systems, S. Banerjee of Bhabha Atomic Research Centre said here on Wednesday. (1/2 page)

  20. Accelerator development in India for ADS programme

    Indian Academy of Sciences (India)

    Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. *Physics ... At BARC, development of a Low Energy High Intensity Proton Accelerator. (LEHIPA) ... incinerate the MA (minor actinides) and LLFP (long-lived fission products) ra- diotoxic .... figure 3 to satisfy the required boundary conditions.

  1. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    https://www.ias.ac.in/article/fulltext/reso/012/07/0061-0078. Keywords. Autonomous robots; machine intelligence; smart structures; universal computers; artificial evolution; personal robots. Author Affiliations. V K Wadhawan1. Raja Ramanna Fellow (DAE), Solid State Physics Division, Bhabha Atomic Research Centre, ...

  2. Studies on plutonium and americium in coastal environment of Bombay Harbour Bay

    International Nuclear Information System (INIS)

    Matkar, V.M.; Usha, N.; Rudran, K.

    1999-01-01

    Low level treated radioactive effluents generated at the Bhabha Atomic Research Centre are discharged at CIRUS situated on Trombay shore. The discharges are made at 825 m away from the shore where 1.8 m depth of water is available even at neap tide

  3. Use of research reactors in Soviet atomic centres

    International Nuclear Information System (INIS)

    1964-01-01

    The manner of controlling and directing research reactors in the USSR was described in October at the IAEA seminar for atomic energy administrators by Dr. U. V. Archangelski, Department Chief, State Committee for Utilization of Atomic Energy, USSR. He also enumerated the research reactors in operation. In addition to the portions of the paper which are quoted below, he gave details of the scientific work being carried out in these reactors.

  4. Radioactive waste management at Narora atomic power station in India

    International Nuclear Information System (INIS)

    Prasad, P.N.; Gupta, J.P.; Mittal, S.

    2001-01-01

    Modern society creates waste material, which have to be disposed of in nature without disturbing the ecological equilibrium. Hence effective waste management in all industries is a major concern today. Narora Atomic Power Station (NAPS) generates low and intermediate level liquid, solid and gaseous wastes during its operation and maintenance. The generation of wastes is controlled at the source itself. The wastes are managed by adequate and appropriate treatment before being released into the environment. Different types of liquid wastes are treated by chemical co-precipitation, ion exchange, evaporation, filtration, and dilution techniques. For handling and conditioning of solid wastes, volume reduction techniques such as incineration and baling are employed. The treated wastes are immobilised by incorporation into cement and polymer matrices. Gaseous waste is cleaned by passing through pre-filters and high efficiency particulate (HEPA) filters and diluted with inactive air prior to release to the atmosphere through a 145 m high stack to get further atmospheric dilution. Regular monitoring up to 30 km radius is carried out by fully equipped Environmental Survey and Micrometeorological Laboratory which functions independently under the Directorate of Health and Safety, Bhabha Atomic Research Centre (BARC), Mumbai. So far, the annual maximum dose to the public around NAPS is reported to be 0.2 to 0.3% of limit of 1 mSv/year recommended by the International Commission on Radiological Protection (ICRP). A decade of experience has proved that present practices of nuclear waste management at Narora Atomic Power Station are quite safe and effective with respect to ecological equilibrium. (author)

  5. The law for the Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    1977-01-01

    The law establishes the Japan Atomic Energy Research Institute in accordance with the Basic Act on Atomic Energy as a government corporation for the purpose of promoting R and D and utilizations of atomic energy (first chapter). The second chapter concerns the directors, advisers and personnel of the institute, namely a chairman of the board of directors, a vice-chairman, directors not more than seven persons, and auditors not more than two persons. The chairman represents and supervises the intitute, whom the prime minister appoints with the agreement of Atomic Energy Commission. The vice-chairman and other directors are nominated by the chairman with the approval of the prime minister, while the auditors are appointed by the prime minister with the advice of the Atomic Energy Commission. Their terms of office are 4 years for directors and 2 years for auditors. The third chapter defines the scope of activities of the institute as follows: basic and applied researches on atomic energy; design, construction and operation of nuclear reactors; training of researchers and technicians; and import, production and distribution of radioisotopes. Those activities should be done in accordance with the basic development and utilization plans of atomic energy established by the prime minister with the determination of Atomic Energy Commission. The fourth chapter provides for the finance and accounting of the institute, and the fifth chapter requires the supervision of the institute by the prime minister. (Matsushima, A.)

  6. Heat transfer and fluid flow research relevant to India's nuclear power program

    International Nuclear Information System (INIS)

    Mehta, S.K.; Venkatraj, V.

    1988-01-01

    The Indian Nuclear Power Programme envisages three important stages viz., installation of thermal reactors, fast reactors and utilization of Thorium. By the year 2000 AD, it is proposed to have an installed total capacity of nuclear power of about 10,000 MWe. Starting from the present installed capacity of 1330 MWe, the additional contribution will be mainly made by thermal power reactors of the Pressurized Heavy Water type (PHWR). Apart from the reactors presently under construction about 12 numbers of 235 MWe units are planned to be constructed, which will be based on the standardized design of the reactors at Narora Atomic Power Project (NAPP). In addition, 10 units of 500 MWe capacity each, the design for which is currently under progress, will also be installed. The design, construction and operating agency is the Nuclear Power Board (NPB), while the Bhabha Atomic Research Centre (BARC) is responsible for the research and development work required. In addition to the programme on thermal power reactors, a thermal research reactor (DHRUVA) of 100 MWth capacity has been designed, constructed and has been commissioned. Some of the important heat transfer and fluid flow research problems relevant to the Indian nuclear power and research reactors are discussed in this paper

  7. NNLO massive corrections to Bhabha scattering and theoretical precision of BabaYaga rate at NLO

    International Nuclear Information System (INIS)

    Carloni Calame, C.M.; Nicrosini, O.; Piccinini, F.; Riemann, T.; Worek, M.

    2011-12-01

    We provide an exact calculation of next-to-next-to-leading order (NNLO) massive corrections to Bhabha scattering in QED, relevant for precision luminosity monitoring at meson factories. Using realistic reference event selections, exact numerical results for leptonic and hadronic corrections are given and compared with the corresponding approximate predictions of the event generator BabaYaga rate at NLO. It is shown that the NNLO massive corrections are necessary for luminosity measurements with per mille precision. At the same time they are found to be well accounted for in the generator at an accuracy level below the one per mille. An update of the total theoretical precision of BabaYaga rate at NLO is presented and possible directions for a further error reduction are sketched. (orig.)

  8. Neutron radiography for quality assurance of PHWR fuel pins

    International Nuclear Information System (INIS)

    Chandrasekharan, K.N.; Patil, B.P.; Ghosh, J.K.; Ganguly, C.

    1993-01-01

    Neutron radiography was employed for quality assurance (QA) for advanced PHWR experimental fuel pins containing mixed uranium-plutonium dioxide and thorium-plutonium dioxide pellets. Direct, transfer and track-etch techniques were utilised. The thermal neutron beam facility of APSARA research reactor at Bhabha Atomic Research Centre was used. (author). 5 refs., 16 figs., 2 tabs

  9. Atomic data for controlled fusion research

    International Nuclear Information System (INIS)

    Barnett, C.F.; Ray, J.A.; Ricci, E.; Wilker, M.I.; McDaniel, E.W.; Thomas, E.W.; Gilbody, H.B.

    1977-02-01

    Presented is an evaluated graphical and tabular compilation of atomic and molecular cross sections of interest to controlled thermonuclear research. The cross sections are tabulated and graphed as a function of energy for collision processes involving heavy particles, electrons, and photons with atoms and ions. Also included are sections on data for particle penetration through macroscopic matter, particle transport properties, particle interactions with surfaces, and pertinent charged particle nuclear cross sections and reaction rates. In most cases estimates have been made of the data accuracy

  10. A Comparative Study of Effects of NaCl Induced Stress on Sugarcane

    African Journals Online (AJOL)

    rmd

    2012-04-16

    Apr 16, 2012 ... 3Functional Plant Biology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre,. Trombay, Mumbai, 400 085, ..... Proline also acts as a neutral storage chemical for carbon and nitrogen in ... in origin and is responsible for maintaining photosynthetic efficiency during salt ...

  11. Contrast variation SANS experiments to the study of detergent ...

    Indian Academy of Sciences (India)

    Contrast variation SANS experiments to the study of detergent-induced micellization of block copolymers. V K ASWAL1 and J KOHLBRECHER2. 1Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. 2Spallation Neutron Source Division, Paul Scherrer Institute, CH-5232 PSI Villigen,.

  12. An empirical approach to the theory of particle and nuclear ...

    Indian Academy of Sciences (India)

    Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, ... brief review of some interesting consequences is presented here. ... generalization of the Gutzwiller trace formula for field theories may lead to a systematic semiclassi- ... There are two important gaps in the line, first being between Т.

  13. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    This suggests an increase in the size of the micelles and/or decrease of intermicellar interaction with increasing salt concentration. ... Department of Chemistry, Veer Narmad South Gujarat University, Udhna-Magdall Road, Surat 395 007, India; Technion, Haifa, Israel; Bhabha Atomic Research Centre, Trombay, Mumbai 400 ...

  14. Development of a 300-kV Marx generator and its application to drive ...

    Indian Academy of Sciences (India)

    Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, ... anode gap of 7·5 mm, an REB having beam voltage 160 kV and duration 150 ns ... lowest stage has a triggered SG which is closed by a 6 kV pulse obtained with the ...

  15. Resonance – Journal of Science Education | Indian Academy of ...

    Indian Academy of Sciences (India)

    https://www.ias.ac.in/article/fulltext/reso/010/11/0027-0041. Keywords. Smart structures; adaptronic structures; biomimetics; evolution of machines; smart materials. Author Affiliations. V K Wadhawan1. Raja Ramanna Fellow 2/111/H, Modular laboratories Solid State Physics Division Bhabha Atomic Research Centre Mumbai ...

  16. BARC progress report - 1998

    Energy Technology Data Exchange (ETDEWEB)

    Kalyane, V L [comp.; Library and Information Services Div., Bhabha Atomic Research Centre, Mumbai (India)

    1999-04-01

    This report is a compilation of the progress in various major activities and Research and Development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and papers presented at the various conferences, symposia, workshops and papers published in journal by the staff members of the Divisions are also given. (author) figs., tabs.

  17. BARC progress report - 1998

    International Nuclear Information System (INIS)

    Kalyane, V.L.

    1999-04-01

    This report is a compilation of the progress in various major activities and Research and Development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and papers presented at the various conferences, symposia, workshops and papers published in journal by the staff members of the Divisions are also given. (author)

  18. BARC progress report - 1997

    Energy Technology Data Exchange (ETDEWEB)

    Kalyane, V L [comp.; Library and Information Services Div., Bhabha Atomic Research Centre, Mumbai (India)

    1998-07-01

    This report is a compilation of the progress in various major activities and Research and Development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and papers presented at the various conferences, symposia, workshops and papers published in journal by the staff members of the Divisions are also given. (author) figs., tabs.

  19. BARC progress report - 1997

    International Nuclear Information System (INIS)

    Kalyane, V.L.

    1998-07-01

    This report is a compilation of the progress in various major activities and Research and Development programmes of the different Divisions of the Bhabha Atomic Research Centre, Mumbai. The list of publications and papers presented at the various conferences, symposia, workshops and papers published in journal by the staff members of the Divisions are also given. (author)

  20. Annual report of the Japan Atomic Energy Research Institute, for fiscal 1988

    International Nuclear Information System (INIS)

    1989-01-01

    At present, a half century has elapsed since the discovery of nuclear fission, and atomic energy has taken the position of basic energy already, accordingly the development and utilization of atomic energy is very important as the energy source which can supply energy for long term economically and stably. Along the long term plan of atomic energy development and utilization decided in 1987, Japan Atomic Energy Research Institute (JAERI) advanced the research and development, thus it has borne the role as the nucleus general research institute in atomic energy fields. It has exerted efforts to obtain the understanding and trust of the nation on atomic energy, and has promoted the pioneering project research, such as safety research, high temperature engineering test and research, the research and development of nuclear fusion, the research on radiation utilization and the research and development of nuclear-powered ships. In the safety research, in order to contribute to the further rooting of LWRs and the establishment of nuclear fuel cycle, the research on the engineering safety of nuclear facilities and environmental safety has been advanced. The activities in respective research fields are summarized. Also the international cooperation with USA, FRG, China and others were carried out smoothly. (K.I.)

  1. The four decades of Korea Atomic Energy Research Institute through pictures

    International Nuclear Information System (INIS)

    2000-04-01

    This reports the process and development of Korea Atomic Energy Research Institute with a lot of photos. It is divided five parts, which includes the introduction of the purpose of publication, the quickening period of nuclear Atomic Energy during 1960s the period of building foundation on nuclear power during 1970s the period for technical independence for nuclear atomic energy during 1980s and maturity on technical independence for nuclear atomic energy during 1990s. It deals with the history of Korea Atomic Energy Research Institute from 1959 to 1990.

  2. Teaching and training programmes in nuclear medicine for medical and paramedical personnel at the Radiation Medicine Centre, Bhabha Atomic Research Centre

    International Nuclear Information System (INIS)

    Sharma, S.M.; Raikar, U.R.

    1986-01-01

    Prior to 1976, the Radiation Medicine Centre had conducted 12 short courses of five weeks' duration on medical uses of radioisotopes. A total of 162 medical and scientific personnel attended the courses from various parts of India. Owing to the rapid advances made in nuclear medicine these courses were becoming inadequate, and in 1973 the Centre introduced one-year full time training courses for doctors and science graduates, peparing them for examinations for the Diploma in Radiation Medicine (DRM) and the Diploma in Medical Radioisotope Techniques (DMRIT) of the University of Bombay. By March 1984, 64 doctors and 53 technologists had obtained the DRM and DMRIT. A recent survey indicated that 70% of the DRM physicians and 68% of the DMRIT technologists are employed in nuclear medicine departments. Besides the formal one-year training courses, the Centre has conducted advanced courses of two weeks' duration on scintigraphy and thyroid function tests. The Radiation Medicine Centre has been the regional reference centre in nuclear medicine for the World Health Organization and International Atomic Energy Agency for more than ten years. The Centre has trained sponsored personnel from other countries of the region. The Centre has also organized seven symposia, workshops and seminars, four of them in collaboration with WHO and one with the IAEA. (author)

  3. Fulltext PDF

    Indian Academy of Sciences (India)

    Preface. We are happy to present the Proceedings of the International Symposium on. Neutron Scattering 2008 that was held at Bhabha Atomic Research Centre ... We are indebted to these torchbearers for their words of wisdom, guidance, encouragement and support. We are very much grateful to the esteemed members ...

  4. Magnetic behaviour of nano-particles of Fe2.8Zn0.2O4

    Indian Academy of Sciences (India)

    Magnetic behaviour of nano-particles of Fe2.8Zn0.2O4. SUBHASH CHANDER, SEEMA LAKHANPAL, ANJALI KRISHNAMURTHY,. BIPIN K SRIVASTAVA and V K ASWAL∗. Department of Physics, University of Rajasthan, Jaipur 302 004, India. *Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 ...

  5. Sadhana | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    Author Affiliations. Y Choyal1 Lalit Gupta1 Preeti Vyas1 Prasad Deshpande1 Anamika Chaturvedi1 K C Mittal2 K P Maheshwari1. School of Physics, Devi Ahilya Vishwavidyalaya, Indore 452 001, India; Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, Mumbai 400 085, India ...

  6. Atomic physics research with synchrotron radiation

    International Nuclear Information System (INIS)

    Crasemann, B.

    1981-01-01

    Applications of synchrotron radiation to research in high-energy atomic physics are summarized. These lie in the areas of photoelectron spectrometry, photon scattering, x-ray absorption spectroscopy, time-resolved measurements, resonance spectroscopy and threshold excitation, and future, yet undefined studies

  7. Research and development activities of the Seismology Section for the period January 1982-December 1983

    International Nuclear Information System (INIS)

    Roy, Falguni

    1984-01-01

    The research and development activities of the Seismology Section of the Bhabha Atomic Research Centre (BARC) at Bombay are reported for the period January 1982-December 1983 in the form of summaries. The Section's activities are mainly directed towards detection of underground nuclear explosions. During the report period 64 signals out of about 12000 seismograms which were examined were identified as the signals due to underground nuclear explosions. The instrumentation work for Kolar rockburst research was almost completed under the collaboration programme of BARC with Bharat Gold Mines Ltd. Analytical methods have been developed for interpreting the frequency-magnitude relation of earthquake. These methods will be useful in the seismic estimation of risk in case only restricted data involving events of low magnitude are available. A list of publications of the staff-members of the Section during the report period is given. (M.G.B.)

  8. Information systems in the field of nuclear science and technology, with special reference to Library and Information Services of BARC and its role in the development of atomic energy for peaceful purposes in India

    International Nuclear Information System (INIS)

    Kamath, V.A.

    1976-01-01

    Information systems in the field of nuclear science and technology are described. A detailed description is given of the various services and activities of : (1) the Centre for Documentation (CID) of the EURATOM and (2) The Technical Information Program of the USERDA. The objectives and operation of the International Nuclear Information Systems (INIS) established by the IAEA are discussed. The information needs in the field of nuclear science and technology in India are met by the Library and Information Services (L and IS) of the Bhabha Atomic Research Centre, Bombay. Its various library facilities, documentation and information services are described in detail. It also acts as the INIS inputting centre for Indian nuclear literature. (M.G.B.)

  9. BARC highlights 86

    International Nuclear Information System (INIS)

    1987-01-01

    The Bhabha Atomic Research Centre (BARC), Bombay, is the premier multidisciplinary research establishment of the Department of Atomic Energy (India). It provides Research and Development (R and D) support to the nuclear programmes of the country. Some of its important R and D activities and achievements during 1986 are described in brief in the chapters entitled: Physical Sciences, Chemical Sciences, Materials and Materials Sciences, Life Sciences, Reactors, Fuel Cycle, and Electronics and Instrumentation. The entire text is illustrated with a number of diagrams and photographs. (M.G.B.)

  10. Van de Graaff Laboratory progress report [1974

    International Nuclear Information System (INIS)

    Bhatia, M.S.

    1977-01-01

    Research and development work carried out in the Van de Graaff Laboratory of the Bhabha Atomic Research Centre, Bombay, India during 1974 has been reported. Research programmes in the field of nuclear reactions and activities of the Indian Nuclear Data Group are described. Progress of developmental work on the low energy horizontal tandem accelerator, Dumas mass separator and ion implantation facility is reported. (K.M.)

  11. Long-term program on research, development and application of atomic energy

    International Nuclear Information System (INIS)

    2000-01-01

    As the Committee of Atomic Energy in Japan has established eight times of the 'long-term basic program on development and application of atomic energy at every five years since 1956, these have consistently done every important roles as a leader of programmable promotion of policies on research, development and application of atomic energy in Japan. And, they also have showed some basic concepts on its research, development and application such as safety security, keeping of peaceful application, and so on, and also done a role as a strength with universality for promotion of their sure practices. Then, the Committee requested some surveys and discussions on establishment decided as a new long-term program on May, 1999, to a meeting on establishment of the long-term program, so as to clearly show a basic plan and its promoting measures on research, development and application of atomic energy to be adopted by Japan through the 21st Century under understanding of changes of various affairs after establishment of the previous program, to Japanese peoples, international society and nuclear relatives. The finished program is composed of two parts which are the first part of describing some messages toward Japanese peoples and society and international society and the second part of expressing concrete indications and promoting measures for practicing research, development and application of atomic energy. Here was shown on all sentences of the establishment containing the two parts of present condition and future way on research, development and application of atomic energy' and 'future evolution of research, development and application of atomic energy'. (G.K.)

  12. Nuclear triaxiality in the A ∼ 160–170 mass region: the story so far

    Indian Academy of Sciences (India)

    2014-11-01

    Nov 1, 2014 ... 1Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India ... According to the calculated shell gaps, among Lu isotopes, 165Lu94 and 168Lu97 .... Based on a systematic investigation of the .... A brief review of recent discoveries and ongoing experimental and theoretical investi-.

  13. Bulletin of Materials Science | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Verma1 P Ravindran2 R S Rao1 B K Godwal1 R Jeanloz3. High Pressure Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Department of Chemistry, University of Oslo, Blindern N-0315, Oslo, Norway; Department of Geology and Geophysics, University of California, Berkeley, California 94720, ...

  14. Research and development activities of the Seismology Section for the period January 1984 - December 1985

    International Nuclear Information System (INIS)

    Krishnan, C.A.; Murty, G.S.

    1987-01-01

    The Research and Development (R and D) activities during 1984-1985 of the Seismology Section of the Bhabha Atomic Research Centre, Bombay are reported in the form of individual summaries. The R and D activities of the Section are directed towards development of seismological instruments and methods of analysis of the seismic field data with the main objective of detecting underground nuclear explosions and assessing seismicity and seismic risk of sites considered for nuclear power stations. The Section has two field stations - one at Gauribidanur in the Southern part of the country and another at Delhi i.e. in the northern part of the country. During the report period, a total of 62 events out of the detected ones were identified as underground explosions. The expertise of the Section is also made available for outside organisations. (M.G.B.)

  15. Annual report of the Nuclear Physics Division [for] period ending December 31, 1976

    International Nuclear Information System (INIS)

    Thaper, C.L.; Ajitanand, N.N.; Kailas, S.

    1978-01-01

    The research and development (R and D) activities of the Nuclear Physics Division of the Bhabha Atomic Research Centre, Bombay, during the calendar year 1976 are reported. The R and D activities of the Division cover the areas of nuclear physics, fission physics and solid state physics. Various experimental techniques and instruments developed are also briefly described. (M.G.B.)

  16. Annual progress report for 1984 of Theoretical Physics Division

    International Nuclear Information System (INIS)

    Rastogi, B.P.; Menon, S.V.G.; Jain, R.P.

    1985-01-01

    This report presents a resume of the work done in the Theoretical Physics Division of the Bhabha Atomic Research Centre, Bombay, during the calendar year 1984. The report is divided into two parts, namely, Nuclear Technology and Mathematical Physics. The topics covered are described by brief summaries. A list of research publications and papers presented in symposia/workshops is also included. (author)

  17. The law for the Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    1979-01-01

    The institute is established under the atomic energy basic law to make effectively research of development of atomic energy in general and help to promote investigation, development and utilization of it. The institute is a legal person and has its main office in Tokyo. Its capital is the amount of yen 2,500 million plus contributions by persons other than the government. The government invests the said yen 2,500 million at the time of its establishment. The articles of the institute shall prescribe matters, such as: capital, contributions and assets; officer and meeting; business and its execution; accounting, etc. The officers are consisted of a chief director, a deputy chief director and less than 7 directors and less than 2 auditors. The chief director is appointed by the Prime Minister with the consent of the atomic energy commission. The term of the chief director, the deputy chief director and directors is 4 years and that of auditors is 2 years. Functions of the institute include basic and application research of atomic energy, planning, building and operation of reactors, training of researchers and engineers of atomic energy, etc. The budget, the business program and the financial project shall be prepared each business year and authorized by the Prime Minister. The institute is subject to the supervision of the Prime Minister. (Okada, K.)

  18. Human resource development strategies adopted by the Department of Atomic Energy, India

    International Nuclear Information System (INIS)

    Grover, R.B.

    2007-01-01

    In view of the knowledge intensive nature of the nuclear technology and the state of hi-tech industrial infrastructure in India, Bhabha Atomic Research Centre (BARC) has been designed to have a composite character. It is a large institution and has been pursuing activities starting from basic research to technology development. At BARC, we have also put in place a very effective human resource development programme and this programme is run by faculty drawn from within the organization. As a result, BARC has attributes of an institute, a research laboratory and also an industrial organization. The composite character is confined not only to BARC but also extends to the Department of Atomic Energy (DAE) as a whole. Simultaneous with research centres, we have been setting up industrial units. The fountainhead of success of the atomic energy programme in India is the fact that both the research centres, which generate knowledge and the industrial units, which generate wealth from the knowledge, are under one umbrella and that is the DAE working under the policy framework laid by the Atomic Energy Commission. The two sets of institutions maintain an organic linkage permitting seamless interaction and facilitating technology transfer without any cumbersome formalities. The common policy framework followed by all the institutions enables the department to follow an integrated approach towards human resource development and this further strengthens the linkages between the institutions. This has enabled the country to be self-reliant in all aspects of nuclear fuel cycle, starting with prospecting and mining of uranium and ending with the back-end of the fuel cycle, which involves reprocessing of the spent fuel and nuclear waste management. Most of the R and D work, which led to realization of this capability, was done or initiated at BARC at Trombay. Some of the activities have now been taken over by other research centers: IGCAR at Kalpakkam for fast reactors, Centre for

  19. NNLO leptonic and hadronic corrections to Bhabha scattering and luminosity monitoring at meson factories

    Energy Technology Data Exchange (ETDEWEB)

    Carloni Calame, C. [Southampton Univ. (United Kingdom). School of Physics; Czyz, H.; Gluza, J.; Gunia, M. [Silesia Univ., Katowice (Poland). Dept. of Field Theory and Particle Physics; Montagna, G. [Pavia Univ. (Italy). Dipt. di Fisica Nucleare e Teorica; INFN, Sezione di Pavia (Italy); Nicrosini, O.; Piccinini, F. [INFN, Sezione di Pavia (Italy); Riemann, T. [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany); Worek, M. [Wuppertal Univ. (Germany). Fachbereich C Physik

    2011-07-15

    Virtual fermionic N{sub f}=1 and N{sub f}=2 contributions to Bhabha scattering are combined with realistic real corrections at next-to-next-to-leading order in QED. The virtual corrections are determined by the package BHANNLOHF, and real corrections with the Monte Carlo generators BHAGEN-1PH, HELAC-PHEGAS and EKHARA. Numerical results are discussed at the energies of and with realistic cuts used at the {phi} factory DA{phi}NE, at the B factories PEP-II and KEK, and at the charm/{tau} factory BEPC II. We compare these complete calculations with the approximate ones realized in the generator BABAYAGA rate at NLO used at meson factories to evaluate their luminosities. For realistic reference event selections we find agreement for the NNLO leptonic and hadronic corrections within 0.07% or better and conclude that they are well accounted for in the generator by comparison with the present experimental accuracy. (orig.)

  20. Annual report of the Japan Atomic Energy Research Institute, for fiscal 1989

    International Nuclear Information System (INIS)

    1990-01-01

    Japan Atomic Energy Research Institute has promoted the research on nuclear safety, the research and development of high temperature engineering and nuclear fusion which are the leading projects bringing about the breakthrough in atomic energy technology, the research on radiation utilization and the research and development of nuclear-powered ships, following the 'Plan of development and long term utilization of atomic energy' decided in 1987, as the central, general research institute in atomic energy field in Japan. Also the advanced basic research for opening atomic energy frontier and various international cooperation as well as the cooperation in Japan have been promoted. The engineering safety of nuclear facilities and environmental safety, the construction of the Nuclear Fuel Cycle Safety Engineering Research Facility, the design of the High Temperature Engineering Test Reactor and the various tests related to it, the reconstruction of JT-60 for increasing the current, the design of a nuclear fusion reactor, the high utilization of radiation using ion beam, the construction of Sekinehama Port for the nuclear-powered ship 'Mutsu', the power increasing test of the reactor of the Mutsu, the reconstruction of JRR-3 and others are reported. (K.I.)

  1. Pramana – Journal of Physics | Indian Academy of Sciences

    Indian Academy of Sciences (India)

    ... Service de Physique Théorique, CEA/DSM/SPhT, Unité de Recherche associée au CNRS, F-91191 Gif-sur-Yvette Cedex, France; Università del Piemonte Orientale, Alessandria and INFN-Torino, Italy; Van de Graff Laboratory, Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India ...

  2. Comparison of spectrum normalization techniques for univariate ...

    Indian Academy of Sciences (India)

    2016-02-29

    Feb 29, 2016 ... 1Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. 2Department of ... their three-point smoothing methods were studied using LIBS for quantification of Cr, Mn and Ni ... nique for the qualitative and quantitative analysis of the samples. .... SEP is a type of mean square error.

  3. Erratum to: Nuclear triaxiality in the A ∼ 160–170 mass region: the ...

    Indian Academy of Sciences (India)

    Erratum to: Nuclear triaxiality in the A ∼ 160–170 mass region: the story so far. S MUKHOPADHYAY1,∗ and W C MA2. 1Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. 2Department of Physics, Mississippi State University, Mississippi State, Mississippi 39762, USA. ∗. Corresponding ...

  4. Environmental gamma radiation levels around various DAE research centres

    International Nuclear Information System (INIS)

    Takale, R.A.; Swarnakar, M.; Shetty, P.G.; Sahu, S.K.; Pandit, G.G.

    2014-01-01

    This paper presents the gamma radiation levels of four research centres viz. Bhabha Atomic Research Centre (BARC), Trombay; Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam; Variable Energy Cyclotron Centre (VECC), Kolkata; Raja Ramanna Centre for Advanced Technology (RRCAT), Indore; and an industry Board of Radiation and Isotope Technology (BRIT), Vashi. BARC is India's premier nuclear research facility and is a multi-disciplinary research centre with extensive infrastructure for advanced research and development (R and D). IGCAR, Kalpakkam is engaged in scientific research and advanced engineering programme towards the development of Fast Breeder Reactor technology. VECC Kolkata is dedicated to carry out frontier R and D in the fields of Accelerator Science and Technology, Nuclear Science (Theoretical and Experimental), and Material Science etc. RRCAT, Indore has rapidly grown into a premier institute for R and D in lasers, accelerators and their applications. BRIT, Vashi unit is involved in production, development, and supply of radioisotope based products and provision of isotope applications, radiation processing, radio analytical services etc. With an objective to keep a watch on the prevailing environmental background gamma radiation level around all the DAE installations, routine monitoring programme are being carried out using the Thermo Luminescent Dosimeters (TLDs). TLDs provide the simple, inexpensive and precise measurement of small, integrated, external gamma radiation dose rate. The general practice of this programme is to observe the outdoor gamma radiation levels. This paper summarizes the methodology and gamma radiation levels of four research centres viz. BARC, IGCAR, VECC, RRCAT and an industry BRIT, Vashi

  5. Assessment of India’s Research Literature

    Science.gov (United States)

    2006-01-01

    1.1%, pbo 1.1%, optic 1.0%, glass.system 0.8%, temperatur 0.7%, transit 0.6%, teo2 0.5%, judd 0.5%] – Glass , particularly boron oxide (B2O3...Physics (1576) (THEMES: film 8.6%, temperatur 5.6%, phase 2.2%, crystal 2.1%, alloi 1.9%, composit 1.9%, glass 1.8%, magnet 1.6%, deposit 1.5%, rai 1.3...bhabha atom res ctr 81; tata inst fundamental res 64; indian assoc cultivat sci 57; natl phys lab 46; natl chem lab 46; ctr nucl sci 36; cent glass

  6. Annual report of the Japan Atomic Energy Research Institute for fiscal 1992

    International Nuclear Information System (INIS)

    1993-01-01

    Japan Atomic Energy Research Institute has promoted the research on high temperature engineering, the research and development of nuclear fusion, the research on radiation utilization and the research and development of nuclear powered ships as the advanced project researches which bring about the breakthrough of atomic energy technology as well as the research on the safety, following the long term plan of atomic energy development and utilization which was decided in 1987, as the general research institute in Japanese atomic energy field. The progress of the above mentioned researches in fiscal 1992 is reported. The operation of JRR-2, JRR-3M, JRR-4 and JMTR was carried out as scheduled. 9 cases of the medical irradiation on brain tumors were performed at JRR-2. As to the practical test of the disassembling of JPDR, the machinery and equipment in the reactor containment vessel were removed, and the development of a high performance decontamination testing device and others was advanced. The efficient operation of the large computer system, the production and sales of radioisotopes and radioactive waste business were continued. (K.I.)

  7. Research briefing on selected opportunities in atomic, molecular, and optical sciences

    International Nuclear Information System (INIS)

    1991-01-01

    This report discusses research on the following topics: The Laser-Atom Revolution; Controlling Dynamical Pathways; Nonclassical States of Light; Transient States of Atomic Systems; New Light Generation and Handling; Clusters; Atomic Physics at User Facilities; and Impacts of AMO Sciences on Modern Technologies

  8. Synthesis and purification of some main group organometallic ...

    Indian Academy of Sciences (India)

    Unknown

    Novel Materials and Structural Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India. Abstract. Metal–organic ... of AsH3 in GaAs synthesis; ~ 4 h half life of SbH3 at room temperature) has been a driving force to develop new molecular ... pound). Thermal dissociation of these adducts at an appro-.

  9. A controlled potential coulometer for the estimation of plutonium

    International Nuclear Information System (INIS)

    Ponkshe, M.R.; Samuel, J.K.

    1974-01-01

    A transistorized, controlled potential coulometer developed in Radiochemistry Division of the Bhabha Atomic Research Centre, Bombay (India), is described. The instrument features maximum possible use of indigenously available circuit components. Experimental results obtained so far indicate that quantitative estimation of plutonium can be done with the unit to an accuracy of +- 0.2%. (author)

  10. Laser and Plasma Technology Division : annual report 1991

    International Nuclear Information System (INIS)

    1992-01-01

    A brief account of the research and development (R and D) activities carried out by Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Bombay during 1991 is presented. The R and D activities are reported under the headings (1) Laser Activities, (2) Thermal Plasma Activities, (3) Electron Beam Activities and (4) Divisional Workshop Activities. List of publications is given at the end of each activity heading

  11. Progress report on nuclear data activities in India for the period April 1995 to January 1997

    International Nuclear Information System (INIS)

    Ganesan, S.

    1997-01-01

    The present progress report on nuclear data activities in India is the tenth report, the first of which was brought out in the year 1981. This report covers the work carried out during the period from April 1995 to January 1997. It contains brief description on various activities such as measurements, evaluations, compilations, processing of basic nuclear data files, validation of nuclear data through experimental analysis and other related works being carried out in India, mainly at Bhabha Atomic Research Centre at Mumbai and Indira Gandhi Centre of Atomic Research at Kalpakkam. refs., figs., tabs

  12. Progress report on nuclear data activities in India for the period July 1992 to March 1995

    Energy Technology Data Exchange (ETDEWEB)

    Ganesan, S [comp.; Bhabha Atomic Research Centre, Bombay (India). Neutron Physics Div.

    1996-12-31

    The present progress report on Nuclear Data Activities in India covers the work carried out during the period from July 1992 to March 1995. It contains brief description on various activities such as measurements, evaluations, compilations, processing of nuclear data, validation of nuclear data through experimental analysis and other related works being carried out in India, at Bhabha Atomic Research Centre, Bombay and at Indira Gandhi Centre for Atomic Research, Kalpakkam. The report gives extended abstracts of the work carried out mainly in the above-mentioned two centres. (author). refs., figs., tabs.

  13. Progress report on nuclear data activities in India for the period July 1992 to March 1995

    International Nuclear Information System (INIS)

    Ganesan, S.

    1995-11-01

    The present progress report on Nuclear Data Activities in India covers the work carried out during the period from July 1992 to March 1995. It contains brief description on various activities such as measurements, evaluations, compilations, processing of nuclear data, validation of nuclear data through experimental analysis and other related works being carried out in India, at Bhabha Atomic Research Centre, Bombay and at Indira Gandhi Centre for Atomic Research, Kalpakkam. The report gives extended abstracts of the work carried out mainly in the above-mentioned two centres. (author). Refs, figs, tabs

  14. Progress report on nuclear data activities in India for the period July 1992 to March 1995

    International Nuclear Information System (INIS)

    Ganesan, S.

    1995-01-01

    The present progress report on Nuclear Data Activities in India covers the work carried out during the period from July 1992 to March 1995. It contains brief description on various activities such as measurements, evaluations, compilations, processing of nuclear data, validation of nuclear data through experimental analysis and other related works being carried out in India, at Bhabha Atomic Research Centre, Bombay and at Indira Gandhi Centre for Atomic Research, Kalpakkam. The report gives extended abstracts of the work carried out mainly in the above-mentioned two centres. (author). refs., figs., tabs

  15. Analysis of overexposure cases for female radiation workers in medical and research institutions in India

    International Nuclear Information System (INIS)

    Mahajan, J.M.; Massand, O.P.; Venkataraman, G.

    1996-01-01

    Radiation Protection Services Division, Bhabha Atomic Research Centre conducts country wide personnel monitoring service for 40,000 radiation workers, of which about 22,000 radiation workers are from industrial, medical and research institutions. The number of female radiation workers constitute about 5% of the total radiation workers monitored. Basis for control of occupational exposures of women are same as that for men except for pregnant women (foetus). Equivalent dose above 10 mSv in a service period is investigated as to the causes of exposure whether the exposure was really received by the worker (genuine) or only the monitoring badge received the exposure due to other reasons (non-genuine) and necessary remedial actions are taken. Analysis of overexposure cases in female radiation workers as a group has been done for the period of four years (1990-1993) and the conclusions are presented. (author). 2 refs., 4 tabs

  16. Atomic collisions research with excited atomic species

    International Nuclear Information System (INIS)

    Hoogerland, M.D.; Gulley, R.J.; Colla, M.; Lu, W.; Milic, D.; Baldwin, K.G.H.; Buckman, S.J.

    1999-01-01

    Measurements and calculations of fundamental atomic collision and spectroscopic properties such as collision cross sections, reaction rates, transition probabilities etc. underpin the understanding and operation of many plasma and gas-discharge-based devices and phenomena, for example plasma processing and deposition. In almost all cases the complex series of reactions which sustains the discharge or plasma, or produces the reactive species of interest, has a precursor electron impact excitation, attachment, dissociation or ionisation event. These processes have been extensively studied in a wide range of atomic and molecular species and an impressive data base of collision cross sections and reaction rates now exists. However, most of these measurements are for collisions with stable atomic or molecular species which are initially in their ground electronic state. Relatively little information is available for scattering from excited states or for scattering from unstable molecular radicals. Examples of such species would be metastable excited rare gases, which are often used as buffer gases, or CF 2 radicals formed by electron impact dissociation in a CF 4 plasma processing discharge. We are interested in developing experimental techniques which will enable the quantitative study of such exotic atomic and molecular species. In this talk I would like to outline one such facility which is being used for studies of collisions with metastable He(2 3 S) atoms

  17. Low temperature magnetic structure of MnSe

    Indian Academy of Sciences (India)

    Author Affiliations. J B C Efrem D'sa1 P A Bhobe1 K R Priolkar1 A Das2 P S R Krishna2 P R Sarode1 R B Prabhu1. Department of Physics, Goa University, Taleigao Plateau, Goa 403 206, India; Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India ...

  18. Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP

    CERN Document Server

    Abbiendi, G.; Akesson, P.F.; Alexander, G.; Anagnostou, G.; Anderson, K.J.; Asai, S.; Axen, D.; Bailey, I.; Barberio, E.; Barillari, T.; Barlow, R.J.; Batley, R.J.; Bechtle, P.; Behnke, T.; Bell, Kenneth Watson; Bell, P.J.; Bella, G.; Bellerive, A.; Benelli, G.; Bethke, S.; Biebel, O.; Boeriu, O.; Bock, P.; Boutemeur, M.; Braibant, S.; Brown, Robert M.; Burckhart, H.J.; Campana, S.; Capiluppi, P.; Carnegie, R.K.; Carter, A.A.; Carter, J.R.; Chang, C.Y.; Charlton, D.G.; Ciocca, C.; Csilling, A.; Cuffiani, M.; Dado, S.; Dallavalle, G.M.; De Roeck, A.; De Wolf, E.A.; Desch, K.; Dienes, B.; Dubbert, J.; Duchovni, E.; Duckeck, G.; Duerdoth, I.P.; Etzion, E.; Fabbri, F.; Ferrari, P.; Fiedler, F.; Fleck, I.; Ford, M.; Frey, A.; Gagnon, P.; Gary, John William; Geich-Gimbel, C.; Giacomelli, G.; Giacomelli, P.; Giacomelli, R.; Giunta, Marina; Goldberg, J.; Gross, E.; Grunhaus, J.; Gruwe, M.; Gunther, P.O.; Gupta, A.; Hajdu, C.; Hamann, M.; Hanson, G.G.; Harel, A.; Hauschild, M.; Hawkes, C.M.; Hawkings, R.; Hemingway, R.J.; Herten, G.; Heuer, R.D.; Hill, J.C.; Horvath, D.; Igo-Kemenes, P.; Ishii, K.; Jeremie, H.; Jovanovic, P.; Junk, T.R.; Kanzaki, J.; Karlen, D.; Kawagoe, K.; Kawamoto, T.; Keeler, R.K.; Kellogg, R.G.; Kennedy, B.W.; Kluth, S.; Kobayashi, T.; Kobel, M.; Komamiya, S.; Kramer, T.; Krieger, P.; von Krogh, J.; Kuhl, T.; Kupper, M.; Lafferty, G.D.; Landsman, H.; Lanske, D.; Lellouch, D.; Lettso, J.; Levinson, L.; Lillich, J.; Lloyd, S.L.; Loebinger, F.K.; Lu, J.; Ludwig, A.; Ludwig, J.; Mader, W.; Marcellini, S.; Martin, A.J.; Mashimo, T.; Mattig, Peter; McKenna, J.; McPherson, R.A.; Meijers, F.; Menges, W.; Merritt, F.S.; Mes, H.; Meyer, Niels T.; Michelini, A.; Mihara, S.; Mikenberg, G.; Miller, D.J.; Mohr, W.; Mori, T.; Mutter, A.; Nagai, K.; Nakamura, I.; Nanjo, H.; Neal, H.A.; Nisius, R.; ONeale, S.W.; Oh, A.; Oreglia, M.J.; Orito, S.; Pahl, C.; Pasztor, G.; Pater, J.R.; Pilcher, J.E.; Pinfold, J.; Plane, David E.; Pooth, O.; Przybycien, M.; Quadt, A.; Rabbertz, K.; Rembser, C.; Renkel, P.; Roney, J.M.; Runge, K.; Sachs, K.; Saeki, T.; Sarkisyan, E.K.G.; Schaile, A.D.; Schaile, O.; Scharff-Hansen, P.; Schieck, J.; Schorner-Sadenius, T.; Schroder, Matthias; Schumacher, M.; Seuster, R.; Shears, T.G.; Shen, B.C.; Sherwood, P.; Skuja, A.; Smith, A.M.; Sobie, R.; Soldner-Rembold, S.; Spano, F.; Stahl, A.; Strom, David M.; Strohmer, R.; Tarem, S.; Tasevsky, M.; Teuscher, R.; Thomson, M.A.; Torrence, E.; Toya, D.; Tran, P.; Trigger, I.; Trocsanyi, Z.; Tsur, E.; Turner-Watson, M.F.; Ueda, I.; Ujvari, B.; Vollmer, C.F.; Vannerem, P.; Vertesi, R.; Verzocchi, M.; Voss, H.; Vossebeld, J.; Ward, C.P.; Ward, D.R.; Watkins, P.M.; Watson, A.T.; Watson, N.K.; Wells, P.S.; Wengler, T.; Wermes, N.; Wilson, G.W.; Wilson, J.A.; Wolf, G.; Wyatt, T.R.; Yamashita, S.; Zer-Zion, D.; Zivkovic, Lidija

    2006-01-01

    Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer through its effect on the angular spectrum of small-angle Bhabha scattering. In an almost ideal QED framework, with very favourable experimental conditions, we obtain: Delta alpha(-6.07GeV^2) - Delta alpha(-1.81GeV^2) = (440 pm 58 pm 43 pm 30) X 10^-5, where the first error is statistical, the second is the experimental systematic and the third is the theoretical uncertainty. This is the strongest direct evidence ever presented that the running of alpha is consistent with Standard Model expectations. The null hypothesis that alpha remains constant within the above interval of -t is excluded with a significance above 5sigma. Similarly, our results are inconsistent at the level of 3sigma with the hypothesis that only leptonic loops contribute to the running, and therefore provide the first clear experimental evidence that hadronic loops also contribute.

  19. Supermultiplets and relativistic problems: II. The Bhabha equation of arbitrary spin and its properties

    CERN Document Server

    Moshinsky, M; Nikitin, A G; Smirnov, Yu F

    1998-01-01

    In 1945 Bhabha was probably the first to discuss the problem of a free relativistic particle with arbitrary spin in terms of a single linear equation in the four-momentum vector p subnu, but substituting the gamma supnu matrices of Dirac by other ones. He determined the latter by requiring that their appropriate Lorentz transformations lead to their formulation in terms of the generators of the O(5) group. His program was later extensively amplified by Krajcik, Nieto and others. We returned to this problem because we had an ab-initio procedure for deriving a Lorentz-invariant equation of arbitrary spin and furthermore could express the matrices appearing in them in terms of ordinary and what we called sign spins. Our procedure was similar to that of the ordinary and isotopic spin in nuclear physics that give rise to supermultiplets, hence the appearance of this word in the title. In the ordinary and sign spin formulation it is easy to transform our equation into one linear in both the p subnu and some of the ...

  20. Progress report on nuclear data activities in India for the period from July 1981 to December 1982

    International Nuclear Information System (INIS)

    Anand, R.P.

    1982-01-01

    The progress of Indian nuclear data activities during the period from July 1981 to December 1982 is reported in the form of summaries. Bulk of the nuclear data related work in India is being carried out at the Bhabha Atomic Research Centre, Bombay and the Reactor Research Centre, Kalpakkam. The work is also carried in other institutions and universities and is included in the report. (M.G.B.)

  1. The Atomic Energy Control Board's regulatory research and support program

    International Nuclear Information System (INIS)

    1988-04-01

    The purpose of the Regulatory Research and Support Program is to augment and extend the capability of the Atomic Energy Control Board's (AECB) regulatory program beyond the capability of in-house resources. The overall objective of the program is to produce pertinent and independent scientific and other knowledge and expertise that will assist the AECB in making correct, timely and credible decisions on regulating the development, application and use of atomic energy. The objectives are achieved through contracted research, development, studies, consultant and other kinds of projects administered by the Research and Radiation Protection Branch (RRB) of the AECB

  2. Atomic Energy Research benchmark activity

    International Nuclear Information System (INIS)

    Makai, M.

    1998-01-01

    The test problems utilized in the validation and verification process of computer programs in Atomic Energie Research are collected into one bunch. This is the first step towards issuing a volume in which tests for VVER are collected, along with reference solutions and a number of solutions. The benchmarks do not include the ZR-6 experiments because they have been published along with a number of comparisons in the Final reports of TIC. The present collection focuses on operational and mathematical benchmarks which cover almost the entire range of reaktor calculation. (Author)

  3. Coordinated Research Projects of the IAEA Atomic and Molecular Data Unit

    Science.gov (United States)

    Braams, B. J.; Chung, H.-K.

    2011-05-01

    The IAEA Atomic and Molecular Data Unit is dedicated to the provision of databases for atomic, molecular and plasma-material interaction (AM/PMI) data that are relevant for nuclear fusion research. IAEA Coordinated Research Projects (CRPs) are the principal mechanism by which the Unit encourages data evaluation and the production of new data. Ongoing and planned CRPs on AM/PMI data are briefly described here.

  4. Coordinated Research Projects of the IAEA Atomic and Molecular Data Unit

    International Nuclear Information System (INIS)

    Braams, B. J.; Chung, H.-K.

    2011-01-01

    The IAEA Atomic and Molecular Data Unit is dedicated to the provision of databases for atomic, molecular and plasma-material interaction (AM/PMI) data that are relevant for nuclear fusion research. IAEA Coordinated Research Projects (CRPs) are the principal mechanism by which the Unit encourages data evaluation and the production of new data. Ongoing and planned CRPs on AM/PMI data are briefly described here.

  5. Application specific integrated circuits and hybrid micro circuits for nuclear instrumentation

    International Nuclear Information System (INIS)

    Chandratre, V.B.; Sukhwani, Menka; Mukhopadhyay, P.K.; Shastrakar, R.S.; Sudheer, M.; Shedam, V.; Keni, Anubha

    2009-01-01

    Rapid development in semiconductor technology, sensors, detectors and requirements of high energy physics experiments as well as advances in commercially available nuclear instruments have lead to challenges for instrumentation. These challenges are met with development of Application Specific Integrated Circuits and Hybrid Micro Circuits. This paper discusses various activities in ASIC and HMC development in Bhabha Atomic Research Centre. (author)

  6. Progress report on nuclear data activities in India for the period from January 1983 to June 1984

    International Nuclear Information System (INIS)

    Anand, R.P.

    1984-01-01

    Nuclear data activites in India during the period from January 1983 to June 1984 are reported in the form of summaries. Much of the nuclear data related work in India is being carried out at the Bhabha Atomic Research Centre, Bombay. The work is also carried out in other institutions and universities and is included in the report. (M.G.B.)

  7. Experience with underwater storage of spent fuel in CIRUS and DHRUVA

    International Nuclear Information System (INIS)

    Sharma, S.K.

    1996-01-01

    CIRUS, a 40 MWt Research Reactor and DHRUVA, a 100 MWt Research Reactor have been in operation since 1960 and 1985 respectively at the Bhabha Atomic Research Centre, Trombay, Bombay. Over three decades of experience in handling and storage of irradiated fuel in Cirus has been extensively utilized for making several design improvements in Dhruva. Details of some of the important experiences in Cirus and the design improvements made in Dhruva are presented in this paper. (author)

  8. Laser and Plasma Technology Division : annual report (1990-91)

    International Nuclear Information System (INIS)

    1991-01-01

    A brief account of the research and development (R and D) activities carried out by Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Bombay during the period 1990-91 is presented. The R and D activities are reported under the headings: 1) Laser Activities, 2) Thermal Plasma Activities, and 3) Electron Beam Activities. List of publications including journal articles, papers published in symposia, conferences etc. is given at the end. (original). figs

  9. Progress report: Plasma Physics Division (July 1985 to March 1990)

    International Nuclear Information System (INIS)

    Venkatramani, N.; Thakur, A.V.; Viswanadam, C.

    1991-01-01

    The report summarizes the research and development (R and D) activities carried out by Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Bombay during the period July 1985 to March 1990. The R and D activites are reported under the headings: 1) Thermal Plasma, 2) Electron Beam Technology, and 3) Industrial Design Section. A list of scientific and technical staff working in the different sections of the Division is also given. (author)

  10. Analytical Chemistry Division, annual report for the year 1973

    International Nuclear Information System (INIS)

    1974-01-01

    Research and development activities of the Analytical Chemistry Division of the Bhabha Atomic Research Centre, Bombay (India), for the year 1973 are reported. From the point of view of nuclear science and technology, the following are worth mentioning: (1) radiochemical analysis of mercury in marine products (2) rapid anion exchange separation and spectrophotometric determination of gadolinium in uranium dioxide-gadolinium oxide blend and (3) neutron activation analysis for forensic purpose. (M.G.B.)

  11. Annual report of the Nuclear Physics Division [for] period ending December 31, 1982

    International Nuclear Information System (INIS)

    Eswaran, M.A.; Paranjpe, A.S.

    1985-01-01

    The research and development work of the Nuclear Physics Division of the Bhabha Atomic Research Centre, Bombay for the period ending on 31 December 1982 is reported in the form of individual summaries arranged under the headings: (1) nuclear physics, (2) solid state physics, and (3) instrumentation and techniques. A list of papers by the staff-members of the Division published in journals and presented at conferences during the report period is also given. (author)

  12. Applications of radiation processing: SRI experiences

    International Nuclear Information System (INIS)

    Rajput, Sanjay

    2014-01-01

    Shriram Applied Radiation Centre (SARC) is a part of Shriram Institute for Industrial Research (SRI), and was established in 1986, in collaboration with Bhabha Atomic Research Centre (BARC), Board of Radiation and Isotope Technology (BRIT), Department of Atomic Energy (DAE), Atomic Energy Regulatory Board (AERB). SARC was established with a objective to popularize the radiation processing technology for various applications. SARC is a fully automatic, computerized plant setup as per the design and norms of BRIT/AERB for round the clock fail safe operations. The capacity of SARC Irradiator is 800 kCi of Cobalt -60 source which can process up to 10,000 cubic meters of material (0.1g/cc) at 25 kGy level

  13. Molten salt reactor concept

    International Nuclear Information System (INIS)

    Sood, D.D.

    1980-01-01

    Molten salt reactor is an advanced breeder concept which is suited for the utilization of thorium for nuclear power production. This reactor is based on the use of solutions of uranium or plutonium fluorides in LiF-BeF 2 -ThF 4 as fuel. Unlike the conventional reactors, no external coolant is used in the reactor core and the fuel salt itself is circulated through heat exchangers to transfer the fission produced heat to a secondary salt (NaF-NaBF 4 ) for steam generation. A part of the fuel stream is continuously processed to isolate 233 Pa, so that it can decay to fissile 233 U without getting converted to 234 Pa, and for the removal of neutron absorbing fission products. This on-line processing scheme makes this reactor concept to achieve a breeding ratio of 1.07 which is the highest for any thermal breeder reactor. Experimental studies at the Bhabha Atomic Research Centre, Bombay, have established the use of plutonium as fuel for this reactor. This molten salt reactor concept is described and the work conducted at the Bhabha Atomic Research Centre is summarised. (auth.)

  14. High-sensitivity measurements of the excitation function for Bhabha scattering at MeV energies

    International Nuclear Information System (INIS)

    Tsertos, H.; Kozhuharov, C.; Armbruster, P.; Kienle, P.; Krusche, B.; Schreckenbach, K.

    1989-02-01

    Using a monochromatic e + beam scattered on a Be foil and a high-resolution detector device, the excitation function for elastic e + e - scattering was measured with a statistical accuracy of 0.25% in 1.4 keV steps in the c.m.-energy range between 770 keV and 840 keV (1.79 - 1.86 MeV/c 2 ) at c.m. scattering angles between 80 0 and 100 0 (FWHM). Within the experimental sensitivity of 0.5 b.eV/sr (c.m.) for the energy-integrated differential cross section no resonances were observed (97% CL). From this limit we infer that a hypothetical spinless resonant state should have a width of less than 1.9 meV corresponding to a lifetime limit of 3.5x10 -13 s. This limit establishes the most stringent bound for new particles in this mass range derived from Bhabha scattering and is independent of assumptions about the internal structure of the hypothetical particles. Less sensitivite limits were, in addition, derived around 520 keV c.m. energy (≅ 1.54 MeV/c 2 ) from an investigation with a thorium and a mylar foil as scatterers. (orig.)

  15. New calculations of cross-sections and charge asymmetries for lepton pair production and wide angle Bhabha scattering in e+e- collisions near the Z-peak

    Science.gov (United States)

    Field, J. H.

    1994-03-01

    A new event generator for lepton pair production and wide angle Bhabha scattering, BHAGENE3, is presented. Both electroweak and higher order (beyond O(α) QED corrections are included. Comparisons are made with results from the programs, based on the structure function formalism, ALIBABA, TOPAZ0 and ZFITTER. For the case of the final states l+l-γγ ( l = e, μ, τ) BHAGENE3 results are compared with those of Monte Carlo generators that use the exact O( α2) amplitudes.

  16. Present state of research and development of atomic energy in five Asian countries

    Energy Technology Data Exchange (ETDEWEB)

    1981-01-01

    The survey group for Asian atomic energy cooperation was dispatched by the Japanese government, and toured Philippines, Indonesia, Malaysia, Thailand and Bangladesh from September 7 to 19, 1980. The present state of atomic energy development and the energy situation in respective countries were surveyed through the exchange of opinion and the inspection of related facilities. The Regional Cooperative Agreement for Research, Development and Training Related to Nuclear Science and Technology was concluded in June, 1972, and 12 countries have participated in it. It was impressive that respective countries have the peculiar energy policies corresponding to their objective conditions. They regard atomic energy as the important substitute energy for petroleum, but the fear about the safety of atomic energy and the movement against nuclear power generation have been growing considerably. The research and development on atomic energy are carried out very actively in respective countries, and the construction of large-scale research centers was commenced in Indonesia, Malaysia and Bangladesh. Research reactors have been operated in Philippines, Indonesia and Thailand since about 20 years ago, and the utilization of radioisotopes and radiation has been studied. The cooperation of Japan with these countries is far behind that of other advanced countries.

  17. Accomplishments of LOCA/ECCS experimental research at Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Tasaka, Kanji; Murao, Yoshio; Koizumi, Yasuo

    1984-01-01

    Japan Atomic Energy Research Institute has investigated loss-of-coolant accident (LOCA)/emergency core cooling system (ECCS) from 1970. Major results of the LOCA/ECCS research are summarized in this report. ROSA-II program was LOCA/ECCS research for a pressurized water reactor (PWR) and ROSA-III program was for a boiling water reactor (BWR). The both test facilities were scaled at approximately 1/400 of the respective reference PWR and BWR. Large scale reflood test is research on reflood phenomena during a large break LOCA of PWR. The test facility is scaled at approximately 1/20 of the reference PWR and the research is still being continued. (author)

  18. National seminar on non-destructive evaluation techniques: proceedings cum souvenir

    International Nuclear Information System (INIS)

    Dutta, N.G.; Kulkarni, P.G.; Purushotham, D.S.C.

    1994-01-01

    This volume contains selected papers presented at the National Seminar on Non-Destructive Evaluation Techniques held at Bhabha Atomic Research Centre, Mumbai during December 8-9, 1994. The papers covered a wide spectrum of non-destructive evaluation activities including that for quality assurance of various nuclear components and structures with the focal theme being computerization and robotics. The papers relevant to INIS are indexed separately

  19. Environmental monitoring around the Nuclear Power Plants (NPPs) in India

    International Nuclear Information System (INIS)

    Ravi, P.M.

    2014-01-01

    Environmental Survey Laboratories (ESLs) are established at all major nuclear installations before the commissioning of an installation. As per the lndian regulations, the environmental monitoring around NPPs are carried out by an independent body. Accordingly, Environmental Survey Laboratories (ESLs) under Health Physics Division, Bhabha Atomic Research Centre is entrusted with the responsibility. This paper presents the various aspects of environmental monitoring programmes being pursued around Indian NPPs

  20. Status report on the Indian MHD programme

    International Nuclear Information System (INIS)

    Ambasankaran, C.

    1978-03-01

    MHD programme in India, which has been started recently as a collaborative effort by the Bhabha Atomic Research Centre and Bharat Heavy Electricals Ltd., with the technical consultation provided by the High Temperature Institute, Moscow, is described. The basic considerations which led to the launching of this project and the details of the experimental plant for R and D work are spelt out. (K.B.)

  1. Atomization of U3Si2 for research reactor fuel

    International Nuclear Information System (INIS)

    Kim, C.K.; Kim, K.H.; Lee, C.T.; Kuk, I.H.

    1995-01-01

    Rotating disk atomization technique is applied to KMRR (Korea Multi-purpose Research Reactor) fuel fabrication. A rotating disk atomizer is designed and manufactured locally and U-4.0 wt. % Si alloy powders are produced. The atomized powders are heat-treated to transform into U 3 Si and the mixture of U 3 Si and Al are extruded to fuel meat. Most of the atomized powders are spherical in shape. The microstructure of the powder is fine due to the rapid solidification. The time required for peritectoid reaction is reduced due to the fine microstructures and the resultant U 3 Si grain size is finer than ever obtained from ingot process. The mechanical properties of the fuel meat are improved: yield strength about 30 %, tensile strength 10% and elongation 250 % increased. (author)

  2. Progress report of the Metallurgy Group

    International Nuclear Information System (INIS)

    Sundaram, C.V.; Moorthy, V.K.

    1975-01-01

    The activities of the Metallurgy Division of the Bhabha Atomic Research Centre, Bombay, during the year 1974 are reported under six sections, namely: ore dressing; extractive metallurgy; ceramics; physical metallurgy; corrosion and electrometallurgy, and radiometallurgy. The developmental programme is not only concerned with materials of nuclear interest such as uranium, thorium, plutonium, zirconium, niobium and beryllium, but also other materials of national interest such as titanium, tantalum, ceramics, corrosion-resistant alloys etc. In addition to the laboratory studies, collaborative work has also been undertaken with other units of the Department of Atomic Energy. (A.K.)

  3. A brief status report on the activities of Nuclear Data Physics Centre of India (NDPCI)

    International Nuclear Information System (INIS)

    Saxena, Alok

    2012-01-01

    The NDPCI has been successful in pursuing all aspects of nuclear data viz, measurements, analysis, compilation and evaluation involving national laboratories and universities in India. This NDPCI is evolving a streamlined and coherent activities of all nuclear data activities in India. The NDPCI has been very successful to bring people in various fields (e.g., Nuclear Physics, Reactor and Radiochemistry Divisions of Bhabha Atomic Research Centre, Mumbai, Indira Gandhi Centre of Atomic Research, Kalapakkam, Variable Energy Cyclotron, Calcutta, etc.) and students and staff from various Universities across India covering both experimentalists and theoreticians. A brief account of NDPCI activities carried out by our researchers during 2010-2012 are highlighted in this report. (author)

  4. Nuclear Physics Division: annual report 1991

    International Nuclear Information System (INIS)

    Betigeri, M.G.

    1993-01-01

    A brief account of the research and development activities carried out by the Nuclear Physics Division, Bhabha Atomic Research Centre, Bombay during the period January 1991 to December 1991 is presented. These R and D activities are reported under the headings : 1) Accelerator Facilities, 2) Research Activities, and 3) Instrumentation. At the end, a list of publications by the staff scientists of the Division is given. The list includes papers published in journals, papers presented at conferences, symposia etc., and technical reports. (author). figs., tabs

  5. Report on R and D activities of Health Physics Division. 1982-83

    International Nuclear Information System (INIS)

    Chakraborty, P.P.; Iyer, M.R.; Somasundaram, S.

    1984-01-01

    The research and development work of the Health Physics Division of the Bhabha Atomic Research Centre, Bombay, during the period 1982-1983 is reported in the form of individual summaries under the headings: radiation physics, radiation dosimetry, instrumentation, environmental monitoring, operational health physics, industrial hygiene, reactor safety studies, micrometeorology, stable and radioactive elements in environmental systems, and in vivo radioactivity measurement. The work carried out under research contracts with the IAEA and under bilateral collaboration programmes is summarised under the heading: collaboration studies. (M.G.B.)

  6. ECR-based atomic collision physics research at ORNL

    International Nuclear Information System (INIS)

    Meyer, F.W.; Bannister, M.E.; Hale, J.W.; Havener, C.C.

    1997-01-01

    After a brief summary of the present capability and configuration of the ORNL Multicharged Ion Research Facility (MIRF), and of upcoming upgrades and expansions, the presently on-line atomic collisions experiments are described. In the process, the utility of intense, cw ion beams extracted from ECR ion sources for low-signal rate experiments is illustrated

  7. Experimental rigs for MHD studies

    International Nuclear Information System (INIS)

    Venkataramani, N.; Jayakumar, R.; Iyer, D.R.; Dixit, N.S.

    1976-01-01

    An MHD experimental rig is a miniature MHD installation consisting of basic equipments necessary for specific investigations. Some of the experimental rigs used in the investigations being carried out at the Bhabha Atomic Research Centre, Bombay (India) are dealt with. The experiments included diagnostics and evaluation of materials in seeded combustion plasmas and argon plasmas. The design specifications, schematics and some of the results of the investigations are also mentioned. (author)

  8. National Nuclear Research Institute, Ghana Atomic Energy Commission: Annual Report 2014

    International Nuclear Information System (INIS)

    2014-01-01

    This annual report covers the research and commercial activities of the National Nuclear Research Institute of the Ghana Atomic Energy Commission for the year 2014. Also listed are the scientific and technical publications issued by staff.

  9. Interprofessional Learning as a Third Space: Rethinking Health Profession Students’ Development and Identity through the Concepts of Homi Bhabha

    Directory of Open Access Journals (Sweden)

    Susan E. Sterrett

    2015-10-01

    Full Text Available Homi K. Bhabha is a post-colonial and cultural theorist who describes the emergence of new cultural forms from multiculturalism. When health profession students enculturated into their profession discuss patient care in an interprofessional group, their unilateral view is challenged. The students are in that ambiguous area, or Third Space, where statements of their profession’s view of the patient enmesh and an interprofessional identity begins to form. The lessons learned from others ways of assessing and treating a patient, seen through the lens of hybridity allow for the development of a richer, interprofessional identity. This manuscript will seek out the ways Bhabha’s views of inbetweenness enhance understanding of the student’s development of an interprofessional viewpoint or identity, and deepen the author’s developing framework of an Interprofessional Community of Practice.

  10. Calculation of the fifth atomic energy research dynamic benchmark with APROS

    International Nuclear Information System (INIS)

    Puska Eija Karita; Kontio Harii

    1998-01-01

    The band-out presents the model used for calculation of the fifth atomic energy research dynamic benchmark with APROS code. In the calculation of the fifth atomic energy research dynamic benchmark the three-dimensional neutronics model of APROS was used. The core was divided axially into 20 nodes according to the specifications of the benchmark and each six identical fuel assemblies were placed into one one-dimensional thermal hydraulic channel. The five-equation thermal hydraulic model was used in the benchmark. The plant process and automation was described with a generic WWER-440 plant model created by IVO Power Engineering Ltd. - Finland. (Author)

  11. Laser and Plasma Technology Division annual report 1994

    International Nuclear Information System (INIS)

    Venkatramani, N.; Verma, R.L.

    1995-01-01

    A brief account of the research and development (R and D) activities carried out by Laser and Plasma Technology Division of Bhabha Atomic Research Centre, Bombay during the period 1994 is presented. The activities are reported under the headings: 1) laser activities, 2) thermal plasma activities, 3) electron beam activity. At the end of each section, a list of publications by the staff members in the field indicated by the title of the section is given. (author). refs., tabs., figs

  12. Annual report of the Nuclear Physics Division [for] the period ending December 1975

    International Nuclear Information System (INIS)

    Jain, B.K.; Nadkarni, D.M.; Rao, K.R.P.M.

    1976-01-01

    The R and D activities of the Nuclear Physics Division of the Bhabha Atomic Research Centre, Bombay, during 1975, are described. The following are the significant areas of research activities of the Division : resonance reactions, nuclear spectra, fast fission, ternary and quaternary fission, neutron diffraction studies of magnetic materials, neutron inelastic scattering and dynamics of condensed media. The progress of development work on various experimental techniques and facilities including ion implantation facility and terminal tandem accelerator has been reported. (M.G.B.)

  13. Laser and Plasma Technology Division annual report 1994

    Energy Technology Data Exchange (ETDEWEB)

    Venkatramani, N; Verma, R L [eds.; Bhabha Atomic Research Centre, Bombay (India). Laser and Plasma Technology Div.

    1996-12-31

    A brief account of the research and development (R and D) activities carried out by Laser and Plasma Technology Division of Bhabha Atomic Research Centre, Bombay during the period 1994 is presented. The activities are reported under the headings: (1) laser activities, (2) thermal plasma activities, (3) electron beam activity. At the end of each section, a list of publications by the staff members in the field indicated by the title of the section is given. (author). refs., tabs., figs.

  14. Fuel Chemistry Division: progress report for 1987

    International Nuclear Information System (INIS)

    1990-01-01

    The progress of research and development activities of the Fuel Chemistry Division of the Bhabha Atomic Research Centre, Bombay, during 1987 is reported in the form of summaries which are arranged under the headings: Fuel Development Chemistry, Chemistry of Actinides, Chemical Quality Control of Fuel, and Studies related to Nuclear Material Accounting. A list of publications by the members of the Division during the report period is given at the end of the report. (M.G.B.). refs., 15 figs., 85 tabs

  15. Reports of the research results for the peaceful uses of atomic energy, no. 19

    International Nuclear Information System (INIS)

    1980-01-01

    Many valuable results have been obtained by the tests and researches concerning the peaceful utilization of atomic energy, and they accomplished major role in the promotion of the peaceful utilization of atomic energy in Japan. In this report, the results of the tests and researches on the peaceful utilization of atomic energy carried out by national research institutes and others in 1978 fiscal year are outlined. It is desirable to deepen understandings further on the recent trend and results of the tests and researches with this book. The report is divided into the following chapters: nuclear fusion, safety research (technological safety research, environmental radioactivity safety research), food irradiation, countermeasures to cancers, agriculture, forestry and fishery (fertilized soil, quality improvement, farm product protection, breeding improvement), medicine (diagnosis and therapy, pharmaceuticals, environmental hygiene, application to living body pathology), mining and industry (radiation chemistry, radiation measurement, process analysis), power utilization (nuclear reactor materials, nuclear ships), civil engineering, radioactivation analysis, and injury prevention research. (Kako, I.)

  16. Atomic physics at the future facility for antiproton and ion research: a status report

    International Nuclear Information System (INIS)

    Gumberidze, A

    2013-01-01

    The new international accelerator Facility for Antiproton and Ion Research (FAIR) which is currently under construction in Darmstadt has key features that offer a wide range of exciting new opportunities in the field of atomic physics and related fields. The facility will provide highest intensities of relativistic beams of both stable and unstable heavy nuclei, in combination with the strong electromagnetic fields generated by high-power lasers, thus allowing to widen atomic physics research into completely new domains. In the current contribution, a short overview of the SPARC (Stored Particle Atomic physics Research Collaboration) research programme at the FAIR facility is given. Furthermore, we present the current strategy for the realization of the envisioned SPARC physics programme at the modularized start version of the FAIR facility. (paper)

  17. Ion backscattering techniques applied in materials science research

    International Nuclear Information System (INIS)

    Sood, D.K.

    1978-01-01

    The applications of Ion Backscattering Technique (IBT) to material analysis have expanded rapidly during the last decade. It is now regarded as an analysis tool indispensable for a versatile materials research program. The technique consists of simply shooting a beam of monoenergetic ions (usually 4 He + ions at about 2 MeV) onto a target, and measuring their energy distribution after backscattering at a fixed angle. Simple Rutherford scattering analysis of the backscattered ion spectrum yields information on the mass, the absolute amount and the depth profile of elements present upto a few microns of the target surface. The technique is nondestructive, quick, quantitative and the only known method of analysis which gives quantitative results without recourse to calibration standards. Its major limitations are the inability to separate elements of similar mass and a complete absence of chemical-binding information. A typical experimental set up and spectrum analysis have been described. Examples, some of them based on the work at the Bhabha Atomic Research Centre, Bombay, have been given to illustrate the applications of this technique to semiconductor technology, thin film materials science and nuclear energy materials. Limitations of IBT have been illustrated and a few remedies to partly overcome these limitations are presented. (auth.)

  18. Research and development prospects for the atomic uranium laser isotope separation process. Research report 442

    International Nuclear Information System (INIS)

    Janes, G.S.; Forsen, H.K.; Levy, R.H.

    1977-06-01

    Research and development activities are being conducted on many aspects of the atomic uranium laser isotope separation process. Extensive laser spectroscopy studies have been made in order to identify attractive multi-step selective ionization schemes. Using low density (10 10 atoms/cm 3 ) apparatus, the excited state spectra of atomic uranium have been investigated via multiple step laser excitation and photoionization studies using two, three and four pulsed lasers. Observation of the spectra was accomplished by observing the yield of 235 U and 238 U ions as a function of the wavelength, intensities and delays of the various lasers. These data yielded information on the photoexcitation and photoionizatin cross sections, and on the location, J values, lifetimes, isotope shifts and hyperfine structure of the various atomic levels of uranium. Experiments on selective ionization of uranium vapor by multiple step laser excitation followed by ion extraction at 10 13 atoms/cm 3 density have produced 6% enriched 235 U. These indicate that this process is well adapted to produce light water reactor fuel but less suitable for highly enriched material. Application has been made for license for a 1979 experimental facility to provide data for a mid-1980 commercial plant

  19. Positive Experience with Small and Medium Sized Reactors in India, Lessons Learned in the Previous Two Decades and Future Plans. Annex IV

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-12-15

    India has limited uranium resources and about one third of the world's thorium resources. With a view to utilizing these resources in the country for electricity generation, a long term three stage programme has been evolved as a strategy. At the second International Conference on Peaceful Uses of Atomic Energy in Geneva in September 1957, H. Bhabha and N.B. Prasad presented a paper on a study of the contribution of atomic energy to a power programme in India. This paper elaborated the three stage programme of natural uranium fuelled pressurized heavy water reactors (PHWRs) in the first stage, fast breeder reactors (FBRs) using the spent fuel of the second stage, and thorium based reactor systems in the third stage. This three stage programme has been accepted over the years and still holds good, even today. The focus in India, from the very beginning of the programme, has been to make nuclear power self-reliant. Towards this objective, development of human resources, research and development for all aspects of the nuclear fuel cycle, and establishment of an infrastructure for the manufacturing of nuclear components within the country were targeted well before launching the nuclear power programme. Some of the initial activities, over a period of time, have been shaped as industrial units of the government, as well as industries in the country. Such an approach has greatly contributed to the self-reliance of the nuclear power programme, in addition to the benefits to the overall industrial infrastructure in the country. The establishment of research reactors, facilities and laboratories to support the nuclear power programme and related fuel cycle activities at the Bhabha Atomic Research Centre, and the Indira Gandhi Centre for Atomic Research for the FBR programme has made a significant contribution to the national capacity in the frontier areas of nuclear science and technology.

  20. The role of atomic and molecular processes in fusion research

    International Nuclear Information System (INIS)

    Harrison, M.F.A.

    1977-01-01

    This paper considers the relevance of atomic and molecular processes to research into controlled nuclear fusion and in particular their effects upon the magnetically confined plasma in Tokamak experiments and conceptual Tokamak reactors. The relative significance of collective phenomena and of single particle collisions to both plasma heating and loss processes are discussed and the pertinent principles of plasma refuelling and plasma diagnostics are outlined. The methods by which atomic and molecular data are applied to these problems, the contributing effects of surface interactions and the consequent implications upon the accuracy and the type of data needed are described in a qualitative manner. Whilst particular atomic and molecular processes are not discussed in detail, sufficient information is given of the physical environments of Tokamak devices for significant processes to be self evident. (author)

  1. Development of an immunoradiometric method for the measurement of total PSA

    International Nuclear Information System (INIS)

    Venkatesh, M.; Korde, A.; Bapat, K.; Shukla, A.; Pillai, M.R.A.

    1999-01-01

    Development of an IRMA for total-PSA was taken up in our laboratories (Isotope Division, Bhabha Atomic Research Centre, Mumbai, India) and efforts were made to obtain monoclonals for PSA at our laboratory. Following the guidelines laid at the first meeting of this CRP we have used the reagents supplied by the Agency as well as our inhouse reagents, and attempted to develop assay procedures for measuring total-PSA in human sera

  2. The flora of Trombay

    International Nuclear Information System (INIS)

    Abraham, V.

    1985-01-01

    The wild plant species occurring in the campus of the Bhabha Atomic Research Centre, Bombay, have been put on record. The plants collected and identified are maintained in a herbarium. The species collected are enumerated and the species under each family are arranged in the alphabetical order. The classification of Bentham and Hooker is followed with some modifications in the names of families which are adopted from recent works. (M.G.B.)

  3. Biennial report [for] 1978 and 1979, Electronics Division

    International Nuclear Information System (INIS)

    1980-01-01

    The activities of the Electronics Division of the Bhabha Atomic Research Centre, Bombay, during the calendar years 1978-1979 are reported. The Division designed and fabricated electronic equipment and instruments for use in the fields of nuclear science, nuclear reactors, microcomputer hardware and software, health and safety, medicine, chemical analysis and industry. Many of these are described in brief mentioning their special features and in many cases block diagrams are given. (M.G.B.)

  4. Biennial report for 1982 and 1983 of Electronics Division

    International Nuclear Information System (INIS)

    1985-01-01

    The research and development activities of the Electronics Division of the Bhabha Atomic Research Centre, Bombay during the years 1982 and 1983 is presented in the form of individual summaries arranged under the headings: reactor instrumentations, nuclear instruments, medical instrumentation, local area network, general instruments. Other activities of the Division such as servicing of electronic equipments, provision of wiring and PCB facilities to computer network and micro based systems, training etc are also decribed in brief. A list of staff-members is given at the end. (author)

  5. Generation and study of relativistic electron beam

    International Nuclear Information System (INIS)

    Iyyengar, S.K.; Ron, P.H.; Mittal, K.C.; Goel, A.K.; Ramaswamy, V.; Rohatgi, V.K.

    1977-01-01

    Pulsed Electron Beam (REB) technology has progressed rapidly in recent years because of applications in various fields like radiation sources, high power laser development, plasma heating and fusion research. The REB development programme at the Plasma Physics Section of Bhabha Atomic Research Centre, Bombay, has been described. The design features of the 375 KV, 3500 A, 75 Joule REB generator are discussed. The diagnostic equipment developed for the studies is described. The present experimental studies and some preliminary results on beam characterisation are presented. (author)

  6. The beginnings of our research on the laser cooling of atomic gases

    International Nuclear Information System (INIS)

    Wang Yuzhu

    2011-01-01

    Reminiscences of the beginning of our research on the laser cooling of atomic gases are recounted, describing what motivated us to progress from atomic clocks to laser cooling. At the beginning, we pondered upon the mechanism of laser cooling, such as the cooling of atoms in red shifted diffuse light in an integrating sphere and using light frequency shifting (the A.C. Stark effect). A description of the atomic beam experimental equipment in our lab, which was used in laser cooling, is given, and some experimental results that we obtained are displayed. Finally, we summarize our experiences and lessons learnt. In looking back on our arduous beginnings, we cherish the present, and look forward to a bright future. (authors)

  7. Annual report 1988-89: Tata Institute of Fundamental Research

    International Nuclear Information System (INIS)

    Isloor, J.D.

    1989-01-01

    The annual report surveys the work of the Tata Institute of Fundamental Research (TIFR), Bombay, during the fiscal year 1988-89. Most of the research activities are organised and carried out in two schools of the Institute, namely, the School of Mathematics and the School of Physics. In the School of Mathematics, active research is carried out in almost every branch of pure mathematics. The School of Physics is engaged in research activities of both theoretical and experimental nature in high energy physics, astrophysics, cosmic rays, space physics, astronomy, nuclear and atomic physics, condensed matter physics, molecular biology, computer science and communication and microwave engineering. TIFR has a Basic Dental Research Unit which carries out intervention studies on oral cancer and precancerous lesions. Its Homi Bhabha Centre for Science Education (HBCSE) carries out programmes for improvement of science education at all levels in the country. TIFR outstation units are: (1) TIFR Centre at Bangalore which in collaboration with the Indian Institute of Science, Bangalore has a programme in Applications of Mathematics (2) Radio Astronomy Centre, Ooty, (3) Baloon Facility, Hyderabad and (4) National Image Processing Facility, Ooty. The academic and research activities of the schools, new technique and instruments and experimental facilities developed and fabricated by various units of TIFR are briefly described. Faculty and section wise list of staff members is given. Lists of publications by the members and other activities such as colloquia, seminars, conferences etc. are also given. (M.G.B.)

  8. Noncontact Atomic Force Microscopy: An Emerging Tool for Fundamental Catalysis Research.

    Science.gov (United States)

    Altman, Eric I; Baykara, Mehmet Z; Schwarz, Udo D

    2015-09-15

    Although atomic force microscopy (AFM) was rapidly adopted as a routine surface imaging apparatus after its introduction in 1986, it has not been widely used in catalysis research. The reason is that common AFM operating modes do not provide the atomic resolution required to follow catalytic processes; rather the more complex noncontact (NC) mode is needed. Thus, scanning tunneling microscopy has been the principal tool for atomic scale catalysis research. In this Account, recent developments in NC-AFM will be presented that offer significant advantages for gaining a complete atomic level view of catalysis. The main advantage of NC-AFM is that the image contrast is due to the very short-range chemical forces that are of interest in catalysis. This motivated our development of 3D-AFM, a method that yields quantitative atomic resolution images of the potential energy surfaces that govern how molecules approach, stick, diffuse, and rebound from surfaces. A variation of 3D-AFM allows the determination of forces required to push atoms and molecules on surfaces, from which diffusion barriers and variations in adsorption strength may be obtained. Pushing molecules towards each other provides access to intermolecular interaction between reaction partners. Following reaction, NC-AFM with CO-terminated tips yields textbook images of intramolecular structure that can be used to identify reaction intermediates and products. Because NC-AFM and STM contrast mechanisms are distinct, combining the two methods can produce unique insight. It is demonstrated for surface-oxidized Cu(100) that simultaneous 3D-AFM/STM yields resolution of both the Cu and O atoms. Moreover, atomic defects in the Cu sublattice lead to variations in the reactivity of the neighboring O atoms. It is shown that NC-AFM also allows a straightforward imaging of work function variations which has been used to identify defect charge states on catalytic surfaces and to map charge transfer within an individual

  9. 2004 Atomic and Molecular Interactions Gordon Research Conference

    International Nuclear Information System (INIS)

    Dr. Paul J. Dagdigian

    2004-01-01

    The 2004 Gordon Research Conference on Atomic and Molecular Interactions was held July 11-16 at Colby-Sawyer College, New London, New Hampshire. This latest edition in a long-standing conference series featured invited talks and contributed poster papers on dynamics and intermolecular interactions in a variety of environments, ranging from the gas phase through surfaces and condensed media. A total of 90 conferees participated in the conference

  10. 2004 Atomic and Molecular Interactions Gordon Research Conference

    Energy Technology Data Exchange (ETDEWEB)

    Dr. Paul J. Dagdigian

    2004-10-25

    The 2004 Gordon Research Conference on Atomic and Molecular Interactions was held July 11-16 at Colby-Sawyer College, New London, New Hampshire. This latest edition in a long-standing conference series featured invited talks and contributed poster papers on dynamics and intermolecular interactions in a variety of environments, ranging from the gas phase through surfaces and condensed media. A total of 90 conferees participated in the conference.

  11. Quenching of nucleotide-derived radicals by bisbenzimidazole ...

    Indian Academy of Sciences (India)

    Unknown

    aRadiation Chemistry and Chemical Dynamics Division, Bhabha Atomic ... reaction of DNA-minor-groove ligand bisbenzimidazole Hoechst 33258 with ... flights, nuclear industries and management of radiation-induced accidents 1,2.

  12. Compilation and evaluation of atomic and molecular data relevant to controlled thermonuclear research needs: USA programs

    International Nuclear Information System (INIS)

    Barnett, C.F.

    1976-01-01

    The U.S. role in the compilation and evaluation of atomic data for controlled thermonuclear research is discussed in the following three areas: (1) atomic structure data, (2) atomic collision data, and (3) surface data

  13. Report of test and research results on atomic energy obtained in national institutes in fiscal 1990

    International Nuclear Information System (INIS)

    1991-01-01

    The tests and researches on the development and utilization of atomic energy in national laboratories were begun in 1956, and have accomplished the great role for the advance of the development and utilization of atomic energy in Japan by having produced many valuable results so far. Atomic energy has been utilized in diverse fields, and also in national laboratories, the research for expanding the development and utilization of atomic energy in food irradiation, medicine, agriculture, forestry, fishery and others in addition to the basic research on nuclear fusion and safety have been advanced. Further expecting the pervasive effect to general science and technology, the development of basic technology and integrated research are promoted from the viewpoint of new techical innovation and creative technology. This is 31st report in which the results of the tests and researches carried out by national laboratories in fiscal year 1990 are summarized. Nuclear fusion, safety research, food irradiation, cancer countermeasures, agriculture, forestry, fishery, medicine, mining and manufacture, power utilization, construction, radioactivation analysis and so on were the main subjects. (K.I.)

  14. Role of research and development in life management programme and upgradation of safety of Indian Pressurised Heavy Water Reactors

    International Nuclear Information System (INIS)

    Rupani, B.B.; Vijayan, P.K.; Rama Rao, A.; Sinha, R.K.

    2009-01-01

    At present, India has a fleet of thirteen small size 220 MWe Pressurised Heavy Water Reactors (PHWRs) and two medium size 540 MWe PHWRs. Reactor Engineering Division (RED) of Bhabha Atomic Research Centre (BARC) has pursued multi-faceted Research and Development programmes to support each phase of PHWR i.e. design, construction, commissioning, operation, maintenance, In-Service Inspection, repair and replacement and life extension, This programme is mainly related to life management of coolant channels, development of tooling and techniques for In-service Inspection of coolant channels, development of repair and replacement technology for coolant channels and moderator system, In-house development of technology and equipments like rolled joints to joint dissimilar metals and lancing equipment for steam generator and state-of art diagnostic systems for trouble shooting critical operating systems. The strong R and D support provided in the programme has significantly contributed towards safe operation of PHWRs. This paper gives the highlights of the major activities in above areas with their end uses and capability. (author)

  15. Databases and coordinated research projects at the IAEA on atomic processes in plasmas

    Energy Technology Data Exchange (ETDEWEB)

    Braams, Bastiaan J.; Chung, Hyun-Kyung [Nuclear Data Section, NAPC Division, International Atomic Energy Agency P. O. Box 100, Vienna International Centre, AT-1400 Vienna (Austria)

    2012-05-25

    The Atomic and Molecular Data Unit at the IAEA works with a network of national data centres to encourage and coordinate production and dissemination of fundamental data for atomic, molecular and plasma-material interaction (A+M/PMI) processes that are relevant to the realization of fusion energy. The Unit maintains numerical and bibliographical databases and has started a Wiki-style knowledge base. The Unit also contributes to A+M database interface standards and provides a search engine that offers a common interface to multiple numerical A+M/PMI databases. Coordinated Research Projects (CRPs) bring together fusion energy researchers and atomic, molecular and surface physicists for joint work towards the development of new data and new methods. The databases and current CRPs on A+M/PMI processes are briefly described here.

  16. Databases and coordinated research projects at the IAEA on atomic processes in plasmas

    Science.gov (United States)

    Braams, Bastiaan J.; Chung, Hyun-Kyung

    2012-05-01

    The Atomic and Molecular Data Unit at the IAEA works with a network of national data centres to encourage and coordinate production and dissemination of fundamental data for atomic, molecular and plasma-material interaction (A+M/PMI) processes that are relevant to the realization of fusion energy. The Unit maintains numerical and bibliographical databases and has started a Wiki-style knowledge base. The Unit also contributes to A+M database interface standards and provides a search engine that offers a common interface to multiple numerical A+M/PMI databases. Coordinated Research Projects (CRPs) bring together fusion energy researchers and atomic, molecular and surface physicists for joint work towards the development of new data and new methods. The databases and current CRPs on A+M/PMI processes are briefly described here.

  17. Databases and coordinated research projects at the IAEA on atomic processes in plasmas

    International Nuclear Information System (INIS)

    Braams, Bastiaan J.; Chung, Hyun-Kyung

    2012-01-01

    The Atomic and Molecular Data Unit at the IAEA works with a network of national data centres to encourage and coordinate production and dissemination of fundamental data for atomic, molecular and plasma-material interaction (A+M/PMI) processes that are relevant to the realization of fusion energy. The Unit maintains numerical and bibliographical databases and has started a Wiki-style knowledge base. The Unit also contributes to A+M database interface standards and provides a search engine that offers a common interface to multiple numerical A+M/PMI databases. Coordinated Research Projects (CRPs) bring together fusion energy researchers and atomic, molecular and surface physicists for joint work towards the development of new data and new methods. The databases and current CRPs on A+M/PMI processes are briefly described here.

  18. Chemistry Division : Annual progress report of 1974

    International Nuclear Information System (INIS)

    1974-01-01

    Research and development activities (during 1974) of the Chemistry Division of the Bhabha Atomic Research Centre, Bombay, are described. Some of the activities of particular interest to nuclear science and technology are: (1) chemistry-based problems of the operating power reactors such as development of a decontaminating solution for power reactors, correlation of iodine-131 levels in the primary heat transport system of a reactor with its operation (2) release of fission gases like xenon from ceramic fuels and (3) radiation chemistry of nitrate solutions (M.G.B.)

  19. BARC highlights '88

    International Nuclear Information System (INIS)

    1989-01-01

    Highlights of research and development activities of the Bhabha Atomic Research Centre (BARC), Bombay during 1988 are presented in chapters entitled: Physical Sciences, Chemical Sciences, Materials and Materials Sciences, Radioisotopes, Reactors, Fuel Cycle, Radiological Safety and Protection, Electronics and Instrumentation, Engineering Services, and Life Sciences. Main thrust of the R and D activities of BARC is on nuclear power reactor technology and all stages of nuclear fuel cycle. Some activities are also in the frontier areas such as high temperature superconductivity and inertial confinement fusion. (M.G.B.). figs., tabs., coloured ills

  20. Report of test and research results on atomic energy obtained in national institutes in fiscal 1983

    International Nuclear Information System (INIS)

    1984-01-01

    As for the test and research on the utilization of atomic energy by national organizations, the budget was appropriated for the first time in fiscal year 1956. Since then, many valuable results of research have been produced in the diverse fields of nuclear fusion, safety research, food irradiation, medicine and others, in this way, the test and research have played large roles in the promotion of the utilization of atomic energy in Japan. This is the 24th report, in which the results of the test and research on the utilization of atomic energy carried out in fiscal year 1983 by national organizations are summarized. 5 researches on nuclear fusion, 19 researches on engineering safety and environmental radioactivity safety, 3 researches on food irradiation, 6 researches on the countermeasures to cancer, 19 researches on agriculture, forestry and fishery, 30 researches on medicine, pharmaceuticals and environmental hygiene, 6 researches on mining and industry, 6 researches on power reactors and nuclear ships, 1 research on agricultural water, 7 researches on activation analysis and 4 researches on injury prevention are reported. (Kako, I.)

  1. Fuel Chemistry Division annual progress report for 1990

    International Nuclear Information System (INIS)

    Vaidyanathan, R.

    1993-01-01

    The progress report gives brief descriptions of the various activities of the Fuel Chemistry Division of Bhabha Atomic Research Centre, Bombay for the year 1990. The descriptions of activities are arranged under the headings: Fuel Development Chemistry, Chemistry of Actinides, Quality Control of Nuclear Fuels, and studies related to Nuclear Materials Accounting. At the end of the report, a list of papers published in journals and presented at various conferences/symposia is also given. (author). 7 figs., 52 tabs

  2. Fuel Chemistry Division: annual progress report for 1988

    International Nuclear Information System (INIS)

    Vaidyanathan, S.

    1991-01-01

    The progress report gives the brief descriptions of various activites of the Fuel Chemistry Division of Bhabha Atomic Research Centre, Bombay for the year 1988. The descriptions of activities are arranged under the headings: Fuel Development Chemistry of Actinides, Quality Control of Fuel, and Studies related to Nuclear Material Accounting. At the end of report, a list of publications published in journals and papers presented at various conferences/symposia during 1988 is given. (author). 13 figs., 61 tabs

  3. Catalogue of theses

    International Nuclear Information System (INIS)

    Paranjpe, S.V.

    1975-01-01

    The catalogue lists 442 theses submitted by the scientists of the Bhabha Atomic Research Centre, since its inception, to the various universities in India and abroad for the award of M. Sc. and Ph. D. degrees. Theses are grouped under broad subject headings which are arranged in the order of Universal Decimal Classification Scheme. In addition to the author and guide index, a detailed subject index is appended which enhances the utility of the compilation. (S.V.P.)

  4. Food irradiation process control and acceptance. Regional UNDP project for Asia and the Pacific, mission undertaken in India. Food irradiation pilot scale studies and market testing RPFI-Phase 3

    International Nuclear Information System (INIS)

    Giddings, G.G.

    1992-01-01

    A brief three-day visit to the Bhabha Atomic Research Center, Bombay, was made en-route to Thailand in mid-May. In addition to visits with professional staff of various BARC units plus the Isomed gamma radiation processing plant, a meeting was held with, and a seminar provided to representatives of interested private sector firms at State Trading Corporation Headquarters, and a videotape interview on food irradiation was made for inclusion in an educational videotape on the subject. (author)

  5. Atomic physics at the future facility for antiproton and ion research: status report 2014

    International Nuclear Information System (INIS)

    Gumberidze, A; Stöhlker, Th; Litvinov, Yu A

    2015-01-01

    In this contribution, a brief overview of the Stored Particle Atomic physics Research Collaboration scientific program at the upcoming Facility for Antiproton and Ion Research (FAIR) is given. The program comprises a very broad range of research topics addressing atomic structure and dynamics in hitherto unexplored regimes, light–matter interactions, lepton pair production phenomena, precision tests of quantum electrodynamics and standard model in the regime of extreme fields and many more. We also present the current strategy for the realization of the envisioned physics program within the modularized start version (MSV) of FAIR. (paper)

  6. Optically polarized atoms understanding light-atom interactions

    CERN Document Server

    Auzinsh, Marcis; Rochester, Simon M

    2010-01-01

    This book is addressed at upper-level undergraduate and graduate students involved in research in atomic, molecular, and optical Physics. It will also be useful to researchers practising in this field. It gives an intuitive, yet sufficiently detailed and rigorous introduction to light-atom interactions with a particular emphasis on the symmetry aspects of the interaction, especially those associated with the angular momentum of atoms and light. The book will enable readers to carryout practical calculations on their own, and is richly illustrated with examples drawn from current research topic

  7. Van de Graaff Laboratory progress report [for 1973

    International Nuclear Information System (INIS)

    Bhatia, M.S.

    1975-01-01

    Research and development activities of the Van de Graaff Laboratory of the Bhabha Atomic Research Centre, Bombay, during 1973 are reported. Brief account of the research experiments carried out with the 5.5 Mev and 400 kV Van de Graaff accelerator is given. A heavy ion source for ion implantation has been fabricated from indigenous raw materials. Progress and testing of its various components such as duo-plasmatron ion source, inverted motor, resistors, glass rings, stripper for 2 MV tandem accelerator, now under construction is reported. Various components for dual mass separator (DUMAS) are being fabricated and tested. (M.G.B.)

  8. Measurement of the running of the QED coupling in small angle Bhabha scattering with the OPAL detector

    Energy Technology Data Exchange (ETDEWEB)

    Guenther, P.

    2005-06-01

    Using the high precision OPAL Silicon-Tungsten luminometer at LEP, the running of the effective QED coupling {alpha}(t) is measured for space-like momentum transfer 1.81 {<=} -t {<=} 6.07 GeV{sup 2} through its effect on the angular spectrum of small angle Bhabha scattering. In an almost ideal QED framework, with very favourable experimental conditions, we obtain a strong direct evidence that the running of {alpha}(t) is consistent with standard model expectations. The null hypothesis that {alpha} remains constant within the above interval of -t is excluded with a significance above 5{sigma}: {delta}{alpha}(-6.07 GeV{sup 2}) - {delta}{alpha}(-1.81 GeV{sup 2}) = 0.00450 {+-} 0.00079 The hadronic contribution to the running of the coupling has been estimated to be: {delta}{alpha}{sub had}(-6.07 GeV{sup 2}) - {delta}{alpha}{sub had}(-1.81 GeV{sup 2}) = 0.00248 {+-} 0.00079. This result is inconsistent at the level of more than 3{sigma} with the hypothesis that only leptonic loops contribute to the running, and therefore provide the first clear space-like experimental evidence that hadronic loops also contribute. (orig.)

  9. Report of test and research results on atomic energy obtained in national institutes in fiscal 1992

    International Nuclear Information System (INIS)

    1994-01-01

    The tests and researches on the development and utilization of atomic energy in national laboratories were begun in 1956, and have accomplished the great role for the advance of the development and utilization of atomic energy in Japan by having produced many valuable results so far. Atomic energy has been utilized not only in the field of nuclear power but also in diverse fields, and in national laboratories, the research for expanding the development and utilization of atomic energy in medicine, agriculture, forestry, fishery, radioactivation analysis and others in addition the basic research on nuclear fusion have been advanced. Further expecting the pervasive effect to general science and technology, the development of integrated research are promoted from the viewpoint of new technical innovation and creative technology. The safety research of nuclear facilities have been carried out to keep them high level on the basis of the yearly program enacted by Nuclear Safety Commission. This is the report No. 33, in which the results of the test and research in the fields of nuclear fusion safety research, food irradiation, cancer countermeasures, agriculture, forestry, fishery, medicine, mining and manufacture, power utilization, construction, radioactivation analysis carried on in fiscal 1992 are summarized. (J.P.N.)

  10. From the 'Austrian Foundation for Atomic Energy Research' to the 'Seibersdorf Laboratories'

    International Nuclear Information System (INIS)

    Rößner, M.

    2013-01-01

    The aim of this thesis is the description of the process of institutionalization of nuclear research in Austria in the context of the „Atoms for Peace“ program in the 1950s. This aspect of the history of Austrian nuclear research has been relatively unexplored. The focus of this work is the presentation of measures that have been put in Austria to participate in the 'Atoms for Peace' program. Moreover, the expectations and goals of the Austrian nuclear program are analyzed. For this purpose, foundation, structure and research activities of the “Austrian Atomic Energy Commission”, the “Austrian Society for the Study of Atomic Energy” and the “Nuclear Reactor Centre Seibersdorf“ in the period from 1954 until about 1970 are examined. To establish a relationship with the international historical research of the history of nuclear research, the Austrian situation is compared to the Swiss and the German. It turns out that the Austrian expectations and objectives in nuclear research at the beginning of the period of observation roughly corresponded with the international trends. It also follows that by the establishment of the SGAE and the “Nuclear Reactor Centre Seibersdorf“ the development course of Austrian nuclear research occupied a special position compared to foreign institutions.(author) [de

  11. BARC-TIFR Pelletron Linac facility

    International Nuclear Information System (INIS)

    Gore, J.A.; Gupta, A.K.; Saxena, A.

    2017-01-01

    The Pelletron Accelerator, set up as a collaborative project between the Bhabha Atomic Research Centre and the Tata Institute of Fundamental Research, has been serving as the workhorse for the heavy ion accelerator based research in India since its commissioning in December 30, 1988. The facility was augmented with an indigenously developed superconducting Linac booster to enhance the energy of the Pelletron accelerated beams and was fully commissioned on November 28, 2007. The augmented facility is renamed as Pelletron Linac facility (PLF). While the PLF is predominantly utilized by the experimental users from BARC and TIFR, the users include researchers from other research institutions and universities within India and abroad

  12. Radiological safety assessment of Thoron inhalation hazards during DDU handling at UMP, Trombay

    International Nuclear Information System (INIS)

    Shailesh, M.; Belhe, M.S.; Malti; Narayani, K.; Satpati, S.K.

    2012-01-01

    Uranium Extraction Division, Bhabha Atomic Research Centre, Mumbai has been producing nuclear grade uranium metal from Ammonium di-uranate received from IRE to meet the fuel requirement of research reactors of Bhabha Atomic Research Centre at Uranium Metal Plant (UMP) in Trombay. In UMP, uranium oxide powder (U 3 O 8 and UO 3 ) is first reduced to uranium dioxide in reduction reactor and is converted to uranium tetra fluoride in hydro fluorination reactor. After removing moisture and acid vapour in expulsion area, reduction of uranium tetrafluoride is carried out with magnesium in magnesio-thermic reduction (MTR) reactor, pure uranium metal ingot with magnesium fluoride slag is produced. Finally natural uranium ingot is separated from slag in ingot discharging area. However deeply depleted uranium (DDU) metal was produced from uranium oxide (reprocessed uranium) received from PREFRE, Tarapur, as a special campaign. External radiation hazards are not dominant during the processing of natural uranium in uranium metal Plant. However it was observed that during processing of DDU metal, external and internal hazards are significant because of daughter products of thoron. Inhalation dose due to thoron was found less during charging of UO 3 powder operation than ingot discharge operation because of pneumatic powder transport system used for charging operation. It is estimated that after introduction of new blower system in different powder handling operation areas, the potential effective inhalation dose due to thoron inhalation may get reduced by 60% - 80%

  13. Compilation of anatomical, physiological and metabolic characteristics for a Reference Asian Man. Volume 1: data summary and conclusions. Results of a co-ordinated research programme 1988-1993

    International Nuclear Information System (INIS)

    1998-02-01

    The Co-ordinated Research Programme (CRP) on Compilation of Anatomical, Physiological and Metabolic Characteristics for a Reference Asian Man has been conducted as a programme of the IAEA Regional Co-operative Agreement (RCA) for Asia and the Pacific. The CRP was conducted to provide data for radiation protection purposes that is relevant to the biokinetic and dosimetric characteristics of the ethnic populations in the Asian region. The radiological protection decisions that had to be made in the RCA member States following the Chernobyl accident were a significant motivation for establishing the CRP. Eleven RCA Member States participated in the CRP. Research co-ordination meetings (RCMs) for the CRP were held in Mito City, Japan, 17-21 October 1988 and Bhabha Atomic Research Centre, India, 8-12 April 1991. The concluding meeting was held in Tianjin, China, 25-29 October 1993. This publication is divided into two volumes: Volume 1 contains a summary of the data and conclusions from the project and Volume 2 the reports from participating countries

  14. Compilation of anatomical, physiological and metabolic characteristics for a Reference Asian Man. Volume 1: data summary and conclusions. Results of a co-ordinated research programme 1988-1993

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    The Co-ordinated Research Programme (CRP) on Compilation of Anatomical, Physiological and Metabolic Characteristics for a Reference Asian Man has been conducted as a programme of the IAEA Regional Co-operative Agreement (RCA) for Asia and the Pacific. The CRP was conducted to provide data for radiation protection purposes that is relevant to the biokinetic and dosimetric characteristics of the ethnic populations in the Asian region. The radiological protection decisions that had to be made in the RCA member States following the Chernobyl accident were a significant motivation for establishing the CRP. Eleven RCA Member States participated in the CRP. Research co-ordination meetings (RCMs) for the CRP were held in Mito City, Japan, 17-21 October 1988 and Bhabha Atomic Research Centre, India, 8-12 April 1991. The concluding meeting was held in Tianjin, China, 25-29 October 1993. This publication is divided into two volumes: Volume 1 contains a summary of the data and conclusions from the project and Volume 2 the reports from participating countries. Refs, figs, tabs.

  15. Development of Surveillance and In-Service Inspection Programme for Indian Research Reactors Cirus and Dhruva

    International Nuclear Information System (INIS)

    Shukla, D.K.

    2006-01-01

    Many safety requirements for research reactors are quite similar to those of power reactors. For research reactors with a higher hazard potential, the use of safety codes and guides for power reactors is more appropriate. However, there are many important differences between power reactors and research reactors that must be taken into account to ensure that adequate safety margins are available in design and operation of the research reactor. Most research reactors may have small potential for hazard to the public compared to power reactors but may pose a greater potential hazard to the plant operators. The need for greater flexibility in use of research reactors for individual experiments requires a different safety approach. Safety rules for power reactors are required to be substantially modified for application to specific research reactor. Following the intent of the available safety guides for surveillance and In-Service Inspection of Nuclear Power Plants, guidelines were formulated to develop surveillance and In-Service Inspection programme for research reactors Cirus and Dhruva. Based on the specific design of these research reactors, regulatory requirements, the degree of sophistication and experience of the technical organization involved in operating the research reactor, guidelines were evolved for developing and implementing the surveillance and In-Service Inspection programme for research reactors Cirus (40 MWt) and Dhruva (100 MWt) located at Bhabha Atomic Research Centre, Trombay, Mumbai, India. Paper describes the approach adopted for formulation of surveillance and In-service Inspection programme for Dhruva reactor in detail. (author)

  16. Report of test and research results on atomic energy obtained in national institutes in fiscal 1982

    International Nuclear Information System (INIS)

    1983-01-01

    As for the test and research on the utilization of atomic energy by national organizations, the budget was appropriated for the first time in fiscal year 1956. Since then, many valuable results of research have been produced in the diverse fields of nuclear fusion, safety research, food irradiation, medicine and others, in this way, the test and research have played large roles in the promotion of the utilization of atomic energy in Japan. This is the 23rd report, in which the results of the test and research on the utilization of atomic energy carried out in fiscal year 1982 by national organizations are summarized. 5 researches on nuclear fusion, 12 researches on engineering safety, 5 researches on environmental radioactivity safety, 3 researches on food irradiation, 5 researches on the countermeasures to cancer, 8 researches on soil fertilization, 4 researches on quality improvement, 7 researches on crop protection, 5 researches on the improvement of breeding, 8 researches on diagnosis and treatment, 8 researches on pharmaceuticals, 10 researches on the application to pathology, 6 researches on mining and industry, 6 researches on power reactors and nuclear ships, 1 research on underground water, 6 researches on activation analysis and 3 researches on injury prevention are reported. (Kako, I.)

  17. On-line use of personal computers to monitor and evaluate important parameters in the research reactor DHRUVA

    International Nuclear Information System (INIS)

    Sharma, S.K.; Sengupta, S.N.; Darbhe, M.D.; Agarwal, S.K.

    1998-01-01

    The on-line use of Personal Computers in research reactors, with custom made applications for aiding the operators in analysing plant conditions under normal and abnormal situations, has become extremely popular. A system has been developed to monitor and evaluate important parameters for the research reactor DHRUVA, a 100 MW research reactor located at the Bhabha Atomic Research Centre, Trombay. The system was essentially designed for on-line computation of the following parameters: reactor thermal power, reactivity load due to Xenon, core reactivity balance and performance monitoring of shut-down devices. Apart from the on-line applications, the system has also been developed to cater some off-line applications with Local Area Network in the Dhruva complex. The microprocessor based system is designed to function as an independent unit, parallel dumping the acquired data to a PC for application programmes. The user interface on the personal computer is menu driven application software written in 'C' language. The main input parameters required for carrying out the options given in the above menu are: Reactor power, Moderator level, Coolant inlet temperature to the core, Secondary coolant flow rate, temperature rise of secondary coolant across the heat exchangers, heavy water level in the Dump tank and Drop time of individual shut off rods. (author)

  18. M-curves and symmetric products

    Indian Academy of Sciences (India)

    Author Affiliations. INDRANIL BISWAS1 SHANE D'MELLO2. School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India; Department of Mathematics, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411 008, India ...

  19. Effect of ThO2 concentration on thermo-physical properties of barium borosilicate glass

    International Nuclear Information System (INIS)

    Mishra, R.K.; Munshi, A.K.; Kaushik, C.P.; Raj, Kanwar; Shobha, M.; Srikhande, V.K.; Kothiyal, G.P.; Tyagi, A.K.

    2006-01-01

    An advanced heavy water reactor is being developed at Bhabha Atomic Research Centre (BARC) India with an aim of utilizing thorium for power generation. The high level radioactive liquid waste (HLW) generated from reprocessing of Th-based spent fuel is expected to contain Th as one of the main constituents other than fission products, corrosion products, actinides and added chemicals. Barium borosilicate (BBS) glass is being used for vitrification of the HLW generated at the reprocessing plant at BARC, Trombay, Mumbai

  20. Preparation of denatured sup(99m)Tc labeled HSA aerosols of different median diameters for various imaging studies

    Energy Technology Data Exchange (ETDEWEB)

    Raghunath, B.; Kotrappa, P.; Soni, P.S.; Ganatra, R.D. (Bhabha Atomic Research Centre, Bombay (India))

    1982-02-01

    The preparation of denatured sup(99m)Tc-labelled human serum albumin (HSA) aerosols of different median diameters is described using the BARC (Bhabha Atomic Research Centre) dry aerosol generation and delivery system. The applications of these radioactive aerosols are demonstrated in aerosol scintigraphy of lungs, mucociliary movement studies and lymphoscintigraphy in rabbits. It is concluded that the BARC system gives a simplified, rapid and versatile procedure for generation of denatured volume tagged HSA aerosols for a variety of clinical applications.

  1. Preparation of denatured sup(99m)Tc labeled HSA aerosols of different median diameters for various imaging studies

    International Nuclear Information System (INIS)

    Raghunath, B.; Kotrappa, P.; Soni, P.S.; Ganatra, R.D.

    1982-01-01

    The preparation of denatured sup(99m)Tc-labelled human serum albumin (HSA) aerosols of different median diameters is described using the BARC (Bhabha Atomic Research Centre) dry aerosol generation and delivery system. The applications of these radioactive aerosols are demonstrated in aerosol scintigraphy of lungs, mucociliary movement studies and lymphoscintigraphy in rabbits. It is concluded that the BARC system gives a simplified, rapid and versatile procedure for generation of denatured volume tagged HSA aerosols for a variety of clinical applications. (U.K.)

  2. Annual report of the Metallurgy Division - period ending December 1975

    International Nuclear Information System (INIS)

    1976-01-01

    The R and D activities of the Metallurgy Division of the Bhabha Atomic Research Centre, Bombay (India) during 1975 are described. Some of the R and D programmes of particular interest to nuclear technology are: (1) flowsheet development for the production of rare metals and alloys of nuclear use e.g. hafnium, beryllium, zirconium (2) metallurgical, irradiation hardening and corrosion studies on Zr and Zr-base alloys and (3) studies of nuclear ceramic materials such as UO2 and beryllia. (M.G.B.)

  3. Radiation protection service for a nucleonic control system of continuous casting plant after events of accident

    International Nuclear Information System (INIS)

    Chakrabarti, Santanu; Massand, O.P.

    1998-01-01

    Extensive use of nucleonic control systems like level controllers was observed during radiation protection surveys in industries such as refineries, steel plants etc., located in the eastern region of India. There were two accidents at continuous casting plant in 1995 which affected the nucleonic control system installed in 1992. The authorities contacted Bhabha Atomic Research Centre (BARC) for radiation protection surveys for the involved nucleonic gauges. The present paper describes the radiation protection services rendered by BARC during such accidents. (author)

  4. Some topics in matrix iterative analysis

    International Nuclear Information System (INIS)

    Khandekar, D.C.; Menon, S.V.G.; Sahni, D.C.

    1984-01-01

    This report deals with the general theory of matrix iterative analysis. The contents of the report are presented in the form of lecture notes primarily because the report is an outcome of a series of lectures delivered in the Theoretical Reactor Physics Section of the Bhabha Atomic Research Centre, Bombay. The first six lectures are devoted to the mathematical preliminaries needed to fully understand the subject. The remaining lectures provide an introduction to various iteractive methods and their intercomparison. (author)

  5. Report of test and research results on atomic energy obtained in national institutes in fiscal 1986

    International Nuclear Information System (INIS)

    1988-01-01

    The test and research regarding the utilization of atomic energy carried out in national institutions have produced many valuable results in diverse fields so far, such as nuclear fusion, safety research, food irradiation and medicine, since the budget had been appropriated for the first time in 1956. It has accomplished large role in the promotion of atomic energy utilization in Japan. This report is volume 27, in which the results of the test and research on atomic energy utilization carried out by national institutions in fiscal year 1986 are summarized. It is hoped that the understanding about the recent trend and the results of the test and research on atomic energy utilization is further promoted by this report. The contents of this report are nuclear fusion; the research on engineering safety and environmental radioactivity safety; food irradiation; the countermeasures against cancer; fertilized soil, the improvement of quality, the protection of plants and the improvement of breeding in agriculture and fishery fields; diagnosis and medical treatment, pharmaceuticals, environmental hygiene and the application to physiology and pathology in medical field; radiation chemistry and radiation measurement in mining and industry fields; nuclear reactor materials and nuclear-powered ships; civil engineering; radioactivation analysis; and the research on the prevention of injuries. (Kako, I.)

  6. Report of test and research results on atomic energy obtained in national institutes in fiscal 1984

    International Nuclear Information System (INIS)

    1985-01-01

    The test and research regarding the utilization of atomic energy carried out in national institutions have produced many valuable results in diverse fields so far, such as nuclear fusion, safety research, food irradiation and medicine, since the budget had been appropriated for the first time in 1956. It has accomplished large role in the promotion of atomic energy utilization in Japan. This report is Volume 25, in which the results of the test and research on atomic energy utilization carried out by national institutions in fiscal year 1984 are summarized. It is hoped that the understanding about the recent trend and the results of the test and research on atomic energy utilization is further promoted by this report. The contents of this report are nuclear fusion; the research on engineering safety and environmental radioactivity safety; food irradiation; the countermeasures against cancer; fertilized soil, the improvement of quality, the protection of plants and the improvement of breeding in agriculture and fishery fields; diagnosis and medical treatment, pharmaceuticals, environmental hygiene and the application to physiology and pathology in medical field; radiation chemistry and radiation measurement in mining and industry fields; nuclear reactor materials and nuclear-powered ships; civil engineering; radioactivation analysis; and the research on the prevention of injuries. (Kako, I.)

  7. Report of test and research results on atomic energy obtained in national institutes in fiscal 1987

    International Nuclear Information System (INIS)

    1989-01-01

    The test and research regarding the utilization of atomic energy carried out in national institutions have produced many valuable results in diverse fields so far, such as nuclear fusion, safety research, food irradiation and medicine, since the budget had been appropriated for the first time in 1956. It has accomplished large role in the promotion of atomic energy utilization in Japan. This report is volume 28, in which the results of the test and research on atomic energy utilization carried out by national institutions in fiscal year 1987 are summarized. It is hoped that the understanding about the recent trend and the results of the test and research on atomic energy utilization is further promoted by this report. The contents of this report are nuclear fusion; the research on engineering safety and environmental radioactivity safety; food irradiation; the countermeasures against cancer; fertilized soil, the improvement of quality, the protection of plants and the improvement of breeding in agriculture and fishery fields; diagnosis and medical treatment, pharmaceuticals, environmental hygiene and the application to physiology and pathology in medical field; radiation measurement and process analysis in mining and industry fields; nuclear reactor materials and nuclear-powered ships; civil engineering; radioactivation analysis; the research on the prevention of injuries; and the basic researches on materials and acessment and reduction of irradiation risk. (J.P.N.)

  8. Report of test and research results on atomic energy obtained in national institutes in fiscal 1985

    International Nuclear Information System (INIS)

    1986-01-01

    As for the test and research on the utilization of atomic energy in national institutes, the budget was appropriated for the first time in fiscal year 1956, and since then, the many valuable results of research have been obtained so far in the diversified fields of nuclear fusion, safety research, the irradiation of foods, medicine and others, thus the test and research accomplished the large role for promoting the utilization of atomic energy in Japan. In this report, the gists of the results of the test and research on the utilization of atomic energy carried out by national institutes in fiscal year 1985 are collected. No.1 of this report was published in 1960, and this is No.26. It is desired to increase the understanding about the recent trend and the results of the test and research on atomic energy utilization with this book. The researches on nuclear fusion, engineering safety and environmental radioactivity safety, the irradiation of foods, the countermeasures against cancer, fertilized soil, the quality improvement of brewing and farm products, the protection of farm products and the improvement of breeding, diagnosis and medical treatment, pharmaceuticals, environmental hygiene, the application to physiology and pathology, radiochemistry, radiation measurement, process analysis, nuclear reactor materials, nuclear powered ships, civil engineering, radioactivation analysis and injury prevention are reported. (Kako, I.)

  9. Annual report of the Japan Atomic Energy Research Institute for fiscal 2003

    International Nuclear Information System (INIS)

    2004-01-01

    The Japan Atomic Energy Research Institute (JAERI) is comprehensively promoting the research and development (R and D) activities to make the best use of variety of potentials of atomic energy. In the field of nuclear energy, researches on advanced nuclear engineering systems, high-temperature engineering experimentation and nuclear fusion are forwarded to realize long-range stable supply of energy. Researches on safety of nuclear facilities, nuclear fuel cycles, radioactive waste processing/management and environmental radioactivities have been conducted in the safety category according to 'Annual Plan for Safety Research'. And researches on health physics have been implemented to establish the fundamentals of scientific and rational radiation protection. As a diversification of nuclear science and technology, various radiation application activities such as neutron science, advanced photon science and synchrotron radiation science and application research of charged particles and radioisotopes have been promoted, which contribute to drastic advance in the fields of materials and life science etc. and to establishment of new industries. Along with these activities, basic and fundamental researches including advanced basic research, materials science research, nuclear environmental science research and advanced computational science and engineering are in progress. In addition, operation management of JMTR, JRR-3 and JRR-4 were performed. And JAERI also implemented safety management and research information management activities etc. in the peaceful use of nuclear energy. The research activities for FY 2003 are reviewed in this issue. (J.P.N.)

  10. Research and development activities of the Neutron Physics Division for the period January 1981 to December 1981

    International Nuclear Information System (INIS)

    Bhakay-Tamhane, Sandhya; Roy, Falguni

    1982-01-01

    Research and development activities of the Neutron Physics Division of the Bhabha Atomic Research Centre, Bombay, during 1981 are reported in the form of individual summaries. These are presented under headings: Purnima laboratories, crystallography, materials physics and seismology. These activities include studies of: (i) 233 U-uranyl nitrate solution critical systems, (2) fusion blanket neutronics, (3) fusion plasma experiments using 20 KJ capacitor bank, (4) crystal structures using neutron and X-ray diffraction, (5) materials behaviour at high temperatures and under shock waves, and (6) detection of underground nuclear explosions and discriminating them from earthquakes. Design work for many systems/components of the 233 U-fuelled neutron source reactor under construction at Kalpakkam has been completed and fabrication work is being taken up. A 500 KJ capacitor bank facility is being set up for pulsed fusion studies. The feasibility study for a three-dimensional network of sensors close to the working mines of the Kolar Gold Fields, for rockburst studies, was completed. Several computer programs for biological crystallography were implemented on the computers made available to the Division. A list of publications and lectures by the staff is given in an appendix. (M.G.B.)

  11. Report of the research results for the peaceful uses of atomic energy

    International Nuclear Information System (INIS)

    1981-01-01

    In this report, the results of the test and research on the peaceful uses of atomic energy, performed in national test and research institutes in fiscal year 1979, are summarized. This is the 20th report, since the first report was published in 1961, and was compiled by the Atomic Energy Bureau, Science and Technology Agency. 7 reports on nuclear fusion, 9 reports on technological safety research, 9 reports on environmental radioactivity and safety research, 13 reports on food irradiation, 5 reports on the countermeasures against cancers, 16 reports on fertilized soils, 11 reports on the improvement of plant species, 12 reports on the protection of farm products, 14 reports on the improvement of cattle breeding, 11 reports on diagnosis and treatment, 5 reports on medicines, 7 reports on environmental hygiene, 28 reports on the application to living body pathology, 9 reports on radiochemistry, 9 reports on radiation measurement, 1 report on process analysis, 3 reports on nuclear reactor materials, 3 reports on nuclear-powered ships, 4 reports on civil engineering, 3 reports on radioactivation analysis and 2 reports on injury prevention research are summarized. (Kako, I.)

  12. A new apparatus at hyper irradiation research facility at the Atomic Research Center, University of Tokyo

    International Nuclear Information System (INIS)

    Shibata, Hiromi; Iwai, Takeo; Narui, Makoto; Omata, Takao

    1996-01-01

    In the hyper irradiation research facility at the Atomic Research Center, the University of Tokyo, following apparatuses were newly installed for accelerator relating apparatus on 1995 fiscal year; 1) Hyper ion microbeam analysis apparatus, 2) Fourier conversion infrared microscopy, 3) Pico second two-dimensional fluorescence measuring apparatus, 4) Femto second wave-length reversible pulse laser radiation apparatus, and others. In addition to double irradiation, pulse beam irradiation experiment and so forth characteristic in conventional hyper irradiation research apparatus, upgrading of material irradiation experiments using these new apparatuses are intended. (G.K.)

  13. A new apparatus at hyper irradiation research facility at the Atomic Research Center, University of Tokyo

    Energy Technology Data Exchange (ETDEWEB)

    Shibata, Hiromi; Iwai, Takeo; Narui, Makoto; Omata, Takao [Tokyo Univ. (Japan). Research Center for Nuclear Science and Technology

    1996-12-01

    In the hyper irradiation research facility at the Atomic Research Center, the University of Tokyo, following apparatuses were newly installed for accelerator relating apparatus on 1995 fiscal year; (1) Hyper ion microbeam analysis apparatus, (2) Fourier conversion infrared microscopy, (3) Pico second two-dimensional fluorescence measuring apparatus, (4) Femto second wave-length reversible pulse laser radiation apparatus, and others. In addition to double irradiation, pulse beam irradiation experiment and so forth characteristic in conventional hyper irradiation research apparatus, upgrading of material irradiation experiments using these new apparatuses are intended. (G.K.)

  14. U.S. Radioecology Research Programs of the Atomic Energy Commission in the 1950s

    Energy Technology Data Exchange (ETDEWEB)

    Reichle, D.E.

    2004-01-12

    This report contains two companion papers about radiological and environmental research that developed out of efforts of the Atomic Energy Commission in the late 1940s and the 1950s. Both papers were written for the Joint U.S.-Russian International Symposium entitled ''History of Atomic Energy Projects in the 1950s--Sociopolitical, Environmental, and Engineering Lessons Learned,'' which was hosted by the International Institute for Applied Systems Analysis in Laxemberg, Austria, in October 1999. Because the proceedings of this symposium were not published, these valuable historic reviews and their references are being documented as a single ORNL report. The first paper, ''U.S. Radioecology Research Programs Initiated in the 1950s,'' written by David Reichle and Stanley Auerbach, deals with the formation of the early radioecological research programs at the U.S. Atomic Energy Commission's nuclear production facilities at the Clinton Engineering Works in Oak Ridge, Tennessee; at the Hanford Plant in Richland, Washington; and at the Savannah River Plant in Georgia. These early radioecology programs were outgrowths of the environmental monitoring programs at each site and eventually developed into the world renowned National Laboratory environmental program sponsored by the Office of Biological and Environmental Research of the U.S. Department of Energy. The original version of the first paper was presented by David Reichle at the symposium. The second paper, ''U.S. Atomic Energy Commission's Environmental Research Programs Established in the 1950s,'' summarizes all the environmental research programs supported by the U.S. Atomic Energy Commission in the 1950s and discusses their present-day legacies. This paper is a modified, expanded version of a paper that was published in September 1997 in a volume commemorating the 50th anniversary symposium of the U.S. Department of Energy's Office of

  15. A Scenario to Provide Atomic Data for Fusion Research in the Stage of Precision Physics

    International Nuclear Information System (INIS)

    Li Jiaming; Gao Xiang; Cheng Cheng; Zhang Xiaole; Qing Bo

    2010-01-01

    In order to provide abundant atomic data for fusion research in the stage of precision physics, a scenario, being a combination of indispensable theoretical calculations and bench-mark experimental measurements, is proposed. Such abundant atomic data are compiled mainly by theoretical calculations. Accuracies of such abundant data (i.e., atomic energy levels and corresponding cross sections) are ascertained only by a finite number of bench-mark experimental measurements based on analytical calculation of scattering matrices.

  16. Sub-Angstrom Atomic-Resolution Imaging of Heavy Atoms to Light Atoms

    Energy Technology Data Exchange (ETDEWEB)

    O' Keefe, Michael A.; Shao-Horn, Yang

    2003-05-23

    Three decades ago John Cowley and his group at ASU achieved high-resolution electron microscope images showing the crystal unit cell contents at better than 4Angstrom resolution. Over the years, this achievement has inspired improvements in resolution that have enabled researchers to pinpoint the positions of heavy atom columns within the cell. More recently, this ability has been extended to light atoms as resolution has improved. Sub-Angstrom resolution has enabled researchers to image the columns of light atoms (carbon, oxygen and nitrogen) that are present in many complex structures. By using sub-Angstrom focal-series reconstruction of the specimen exit surface wave to image columns of cobalt, oxygen, and lithium atoms in a transition metal oxide structure commonly used as positive electrodes in lithium rechargeable batteries, we show that the range of detectable light atoms extends to lithium. HRTEM at sub-Angstrom resolution will provide the essential role of experimental verification for the emergent nanotech revolution. Our results foreshadow those to be expected from next-generation TEMs with Cs-corrected lenses and monochromated electron beams.

  17. Food irradiation: public perception and benefits

    International Nuclear Information System (INIS)

    Padwal-Desai, S.R.

    1998-01-01

    Extensive research carried out for more than three decades at Bhabha Atomic Research Centre, and among other laboratories in India had conclusively demonstrated application of food irradiation for commercialization of domestic and export market. The radiation processing has definite economic role to play in food preservation industries in developed countries and developing countries. The possible application of food irradiation in developing countries belong to improvement of the hygienic quality of foods when no other methods are available to achieve this purpose, replacement of chemical treatments, improvement of shelf life of certain fruits, improvement of sensory quality, potential application to a quarantine treatment

  18. Spectroscopy Division : Annual progress report for 1973-74

    International Nuclear Information System (INIS)

    1974-01-01

    Research and development activities (during 1973-74) of the Spectroscopy Division of the Bhabha Atomic Research Centre, Bombay are reviewed. From the point of view of nuclear science and technology, a special mention may be made of the following: (1) development of highly sensitive emission spectrographic methods for determination of boron in uranium and its compounds (ii) development of x-ray fluorescence analytic method for analysis of ZrO 2 , rare earths and thorium (iii) spectral studies of rare earth ions in crystals and (iv) development of isotopic analytical method for determining the abundances of boron isotopes. (M.G.B.)

  19. Research in atomic and applied physics using a 6-GeV synchrotron source

    International Nuclear Information System (INIS)

    Jones, K.W.

    1985-12-01

    The Division of Atomic and Applied Physics in the Department of Applied Science at Brookhaven National Laboratory conducts a broad program of research using ion beams and synchrotron radiation for experiments in atomic physics and nuclear analytical techniques and applications. Many of the experiments would benefit greatly from the use of high energy, high intensity photon beams from a 6-GeV synchrotron source. A survey of some of the specific scientific possibilities is presented

  20. Nucleonic level control in industries

    International Nuclear Information System (INIS)

    Eapen, A.C.; Rao, S.S.; Nair, R.S.

    1979-01-01

    The paper elicits the particular advantages of nucleonic level control methods in certain applications. The technique used is described briefly. Normal radioactive sources used and their selection for any application based on their characteristic emissions is explained. Level controller developed by the Bhabha Atomic Research Centre, Bombay, is described including details regarding electronic circuitry and the radiation detector used. Its application in zinc powder plant to measure powder level in a hopper is described. Some of the typical applications of gamma-ray level controllers are mentioned. (auth.)

  1. Indigenous development of scanning electron microscope

    International Nuclear Information System (INIS)

    Ambastha, K.P.; Chaudhari, Y.V.; Pal, Suvadip; Tikaria, Amit; Pious, Lizy; Dubey, B.P.; Chadda, V.K.

    2009-01-01

    Scanning electron microscope (SEM) is a precision instrument and plays very important role in scientific studies. Bhabha Atomic Research Centre has taken up the job of development of SEM indigenously. Standard and commercially available components like computer, high voltage power supply, detectors etc. shall be procured from market. Focusing and scanning coils, vacuum chamber, specimen stage, control hardware and software etc. shall be developed at BARC with the help of Indian industry. Procurement, design and fabrication of various parts of SEM are in progress. (author)

  2. Fuel Chemistry Division annual progress report for 1989

    International Nuclear Information System (INIS)

    Singh Mudher, K.D.

    1993-01-01

    The progress report gives a brief description of the various activities of the Fuel Chemistry Division of Bhabha Atomic Research Centre, Bombay for the year 1989. The descriptions of activities are arranged under the headings: Fuel Development Chemistry, Chemical Quality Control, Chemistry of Actinides, Sol-Gel process for the non Nuclear Ceramics and Studies related to Nuclear Material Accounting.At the end of the report, a list of papers published in journals and presented at various conferences/symposia is also given. (author). 69 tabs., 6 figs

  3. 6th International Workshop on Application of Lasers in Atomic Nuclei Research

    CERN Document Server

    Błaszczak, Z; Marinova, K; LASER 2004

    2006-01-01

    6th International Workshop on Application of Lasers in Atomic Nuclei Research, LASER 2004, held in Poznan, Poland, 24-27 May, 2004 Researchers and graduate students interested in the Mössbauer Effect and its applications will find this volume indispensable. The volume presents the most recent developments in the methodology of Mössbauer spectroscopy. Reprinted from Hyperfine Interactions (HYPE) Volume 162, 1-4

  4. Annual report, 1981-82

    International Nuclear Information System (INIS)

    1982-01-01

    The annual report of the Department of Atomic Energy (DAE) for the financial year 1981-82 is presented. The main objectives of the DAE's programmes are generation of electric power from nuclear energy and applications of radioisotopes in agriculture, medicine, industry, research and other areas. Performance of the atomic power stations at Tarapur and Kota, the progress of work of the nuclear power projects at Kalpakkam, Narora and Kakrapar, and the work of the supporting units (of the power programme), namely, the Nuclear fuel Complex at Hyderabad, the heavy water plants -both commissioned and under construction, and the Atomic Minerals Division are surveyed. The research and development activities of the Bhabha Atomic Research at Bombay and the Reactor Research Centre at Kalpakkam, and those of the aided institutions, namely, the Saha Institute of Nuclear Physics at Calcutta, the Tata Institute of Fundamental Research and the Tata Memorial Centre, both at Bombay are described. Performance of the DAE's public sector undertakings, namely, the Indian Rare Earths Ltd., the Electronics Corporation of India Ltd. at Hyderabad, and the Uranium Corporation of India Ltd. at Jaduguda is reported. (M.G.B.)

  5. Nuclear research and development: a program of the Atomic Energy Corporation of South Africa Limited

    International Nuclear Information System (INIS)

    Sonnekus, D.

    1985-01-01

    The research and development activities of the Atomic Energy Corporation of South Africa are briefly discussed. The activities consists of the following components: geotecnics, research and development, reactor development, research reactor, radiation technology, post-reactor fuel service, safety, research computers and library service

  6. Laser and Plasma Technology Division, Annual Reports 1996 and 1997

    International Nuclear Information System (INIS)

    Venkatramani, N.

    1999-04-01

    This report describes the activity of the Laser and Plasma Technology Division of Bhabha Atomic Research Centre during the two year period 1996- 1997. This division is engaged in the research and development of high power beams mainly laser, plasma and electron beams. Laser and Plasma Technology Division has strived to establish indigenous capability to cater to the requirements of Department of Atomic Energy. This involves development and technology readiness study of laser, plasma and electron beam devices. In addition, studies are also carried out on related physical phenomenon with a view to gain better understanding of the devices. This report has been compiled from individual reports of various groups/sections working in the division. A list of publications by the several members of the division is also included. (author)

  7. Research and development of fusion grid infrastructure based on atomic energy grid infrastructure (AEGIS)

    International Nuclear Information System (INIS)

    Suzuki, Y.; Nakajima, K.; Kushida, N.; Kino, C.; Aoyagi, T.; Nakajima, N.; Iba, K.; Hayashi, N.; Ozeki, T.; Totsuka, T.; Nakanishi, H.; Nagayama, Y.

    2008-01-01

    In collaboration with the Naka Fusion Institute of Japan Atomic Energy Agency (NFI/JAEA) and the National Institute for Fusion Science of National Institute of Natural Science (NIFS/NINS), Center for Computational Science and E-systems of Japan Atomic Energy Agency (CCSE/JAEA) aims at establishing an integrated framework for experiments and analyses in nuclear fusion research based on the atomic energy grid infrastructure (AEGIS). AEGIS has been being developed by CCSE/JAEA aiming at providing the infrastructure that enables atomic energy researchers in remote locations to carry out R and D efficiently and collaboratively through the Internet. Toward establishing the integrated framework, we have been applying AEGIS to pre-existing three systems: experiment system, remote data acquisition system, and integrated analysis system. For the experiment system, the secure remote experiment system with JT-60 has been successfully accomplished. For the remote data acquisition system, it will be possible to equivalently operate experimental data obtained from LHD data acquisition and management system (LABCOM system) and JT-60 Data System. The integrated analysis system has been extended to the system executable in heterogeneous computers among institutes

  8. [Research on the laser atomization treatment machine].

    Science.gov (United States)

    Jiang, Bei-sheng; Tian, Rong-zhe; Zhang, Liang

    2005-07-01

    This text has introduces a new-type laser treatment device. It utilizes the ultrasound atomized gas passage as its optics and makes the laser beams together with the atomized medicine to be transmitted to the patient's respiratory track and lungs for treatment.

  9. Annual report of the Japan Atomic Energy Research Institute for fiscal 2002

    International Nuclear Information System (INIS)

    2003-01-01

    The Japan Atomic Energy Research Institute (JAERI) is comprehensively promoting the research and development (R and D) activities to make the best use of variety of potentials of atomic energy. In the field of nuclear energy, researches on advanced nuclear engineering systems, high-temperature engineering experimentation and nuclear fusion are forwarded to realize long-range stable supply of energy. Researches on safety of nuclear facilities, health physics and science and technology for society have been conducted in the safety category mainly according to 'Annual Plan for Safety Research' to play and important part in long-range utilization of power generation by LWRs and to meet the expectations of people by maintaining reliability and openness associated with 'safety and confidence'. As a diversification of nuclear science and technology, various radiation application activities such as neutron science, advanced photon science and synchrotron radiation science and application research of charged particles and radioisotopes have been promoted, which contribute to drastic advance in the fields of materials and life science etc. and to establishment of new industries. Along with these activities, basic and fundamental researches including advanced basic research, materials science research, nuclear environmental science research and advanced computational science and engineering are in progress. In addition, JAERI is devoted to the technology development in radioactive waste management and nuclear facility dismantling and also to international cooperation and training activities etc. in the peaceful use of nuclear energy. The research activities for FY 2002 are reviewed in this issue. (J.P.N.)

  10. The Atomic energy basic law

    International Nuclear Information System (INIS)

    1979-01-01

    The law aims to secure future energy resources, push forward progress of science and advancement of industry for welfare of the mankind and higher standard of national life by helping research, development and utilization of atomic power. Research, development and utilization of atomic power shall be limited to the peaceful purpose with emphasis laid on safety and carried on independently under democratic administration. Basic concepts and terms are defined, such as: atomic power; nuclear fuel material; nuclear raw material; reactor and radiation. The Atomic Energy Commission and the Atomic Energy Safety Commission shall be set up at the Prime Minister's Office deliberately to realize national policy of research, development and utilization of atomic power and manage democratic administration for atomic energy. The Atomic Energy Commission shall plan, consider and decide matters concerning research, development and utilization of atomic energy. The Atomic Energy Safety Commission shall plan, consider and decide issues particularly concerning safety securing among such matters. The Atomic Energy Research Institute shall be founded under the governmental supervision to perform research, experiment and other necessary affairs for development of atomic energy. The Power Reactor and Nuclear Fuel Development Corporation shall be established likewise to develop fast breeding reactor, advanced thermal reactor and nuclear fuel materials. Development of radioactive minerals, control of nuclear fuel materials and reactors and measures for patent and invention concerning atomic energy, etc. are stipulated respectively. (Okada, K.)

  11. Guidelines for starting a nuclear medicine laboratory. Excerpts from a booklet published by Bhabha Atomic Research Centre, India

    International Nuclear Information System (INIS)

    1992-01-01

    A nuclear medicine department caters to the need of all clinical departments, and, therefore, should be located at a central place. At the same time, because of radiation hazard associated with the use of radionuclides, planning of the departments should be done in such a way that there is no radiation exposure to non-radiation workers and the general public, and also that radiation workers handling radioisotopes receive minimum exposure. When a decision to set up a nuclear medicine department is taken, the authorities are faced with a number of questions regarding the location, planning for the premises, equipment needed, availability of trained medical and paramedical personnel and the procedure for obtaining clearance from various authorities

  12. Guidelines for starting a nuclear medicine laboratory. Excerpts from a booklet published by Bhabha Atomic Research Centre, India

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    A nuclear medicine department caters to the need of all clinical departments, and, therefore, should be located at a central place. At the same time, because of radiation hazard associated with the use of radionuclides, planning of the departments should be done in such a way that there is no radiation exposure to non-radiation workers and the general public, and also that radiation workers handling radioisotopes receive minimum exposure. When a decision to set up a nuclear medicine department is taken, the authorities are faced with a number of questions regarding the location, planning for the premises, equipment needed, availability of trained medical and paramedical personnel and the procedure for obtaining clearance from various authorities

  13. Final results of the fifth three-dimensional dynamic Atomic Energy Research benchmark problem calculations

    International Nuclear Information System (INIS)

    Hadek, J.

    1999-01-01

    The paper gives a brief survey of the fifth three-dimensional dynamic Atomic Energy Research benchmark calculation results received with the code DYN3D/ATHLET at NRI Rez. This benchmark was defined at the seventh Atomic Energy Research Symposium (Hoernitz near Zittau, 1997). Its initiating event is a symmetrical break of the main steam header at the end of the first fuel cycle and hot shutdown conditions with one stuck out control rod group. The calculations were performed with the externally coupled codes ATHLET Mod.1.1 Cycle C and DYN3DH1.1/M3. The standard WWER-440/213 input deck of ATHLET code was adopted for benchmark purposes and for coupling with the code DYN3D. The first part of paper contains a brief characteristics of NPP input deck and reactor core model. The second part shows the time dependencies of important global and local parameters. In comparison with the results published at the eighth Atomic Energy Research Symposium (Bystrice nad Pernstejnem, 1998), the results published in this paper are based on improved ATHLET descriptions of control and safety systems. (Author)

  14. Proceedings of the national symposium on BARC technologies for development of rural India

    International Nuclear Information System (INIS)

    2013-01-01

    Empowering villages with Science and Technology (S and T) based on eco-friendly work plan for sustainable Techno-Economic growth of rural sector in a country of vast size, technology innovations and adaptations have to be evolved. This can be achieved to a great measure particularly since such technology will fit with varied local conditions and can be applied quickly to enhance the quality of life of larger population. Considering the wealth of technology and innovative capability generated in BARC, as an off-shoot of R and D in Nuclear Energy and its applications in power and non-power areas, Department of Atomic Energy (DAE) has launched - Societal Initiative for utilization of Non-Power Applications (NPAs) and Spinoff technologies (Spinoffs) in the area of water, land, agriculture, food processing and urban-rural waste management. Within this framework of societal initiative, structured programme called 'AKRUTI - KRUTIK - FORCE' has been formulated and is being implemented by BARC for techno-economic growth of the rural sector, as one of the many schemes for large-scale deployment of NPAs and spinoffs. Bhabha Atomic Research Centre Officer's Association (BARCOA) is making a maiden attempt to hold a symposium where the scientists, technologists, agriculturists and the consumers will come on a common platform to discuss these issues. This symposium is organized to enable to take the fruits of technology to grass-root level to every villager in the remote corner and provide inclusive growth to the rural sector and tap the hidden innovative capability of large rural India. This symposium describes the various technologies developed indigenously by Bhabha Atomic Research Centre for the development of rural India. Papers relevant to INIS are indexed separately

  15. Review and analysis of the over exposure cases in the non-DAE institutions in India during 2004-2007

    International Nuclear Information System (INIS)

    Varadharajan, Geetha; Srivastava, Kshama; Kolambe, D.H.; Punekar, M.P.; Kher, R.K.

    2008-01-01

    The radiation protection programme aims at providing adequate protection from undue radiation exposure to the personnel directly or indirectly involved with radiation, without limiting the benefits of radiation. Personnel Monitoring of the radiation workers is an integral part of effective radiation protection programme and is mandatory as per the Radiation Protection Rule-71 (RPR-71) and its revised version in 2004 (RPR -2004). In India, countrywide personnel monitoring of 65,000 radiation workers is carried out by 14 TLD units spread all over the country using CaSO 4 :Dy based TLD Badge system developed by Bhabha Atomic Research Centre. Prior to the accreditation of the first private laboratory in 1999, the personnel monitoring service was provided by Bhabha Atomic Research Centre. At present the total workload of about 35000 workers in the non-DAE sector has been transferred to the three private accredited laboratories catering the service in different zones of the country. The effective radiation control and safe work practices can be ensured by proper reporting of doses and investigation and follow up of overexposure cases. Any exposure exceeding 10 mSv in a singe monitoring period is treated as a case of over exposure and such cases are discussed by an AERB appointed investigation committee. The committee decides the genuineness of the exposure after looking into the various aspects relevant to these cases. This paper presents the analysis of over exposure cases reported for non-DAE institutions in the field of medicine, industry and research in India during 2004-2007. (author)

  16. Japan Atomic Energy Research Institute in the 21st century

    International Nuclear Information System (INIS)

    Sato, Y.

    2001-01-01

    Major nuclear research institutes in Japan are the Japan Atomic Energy Research Institute (JAERI), Nuclear Cycle Development Institute (JNC), National Research Institute of Radiological Science (NIRS), and the Institute of Physical and Chemical Research (RIKEN). In the 50s and 60s JAERI concentrated on the introduction of nuclear technology from overseas. Energy security issues led to the development of a strong nuclear power programme in the next two decades resulting in Japan having 50 light water cooled nuclear power plants in operation. Japan also worked on other reactor concepts. The current emphasis of JAERI is on advanced reactors and nuclear fusion. Its budget of 270 million US$ supports five research establishments. JAERI has strong collaboration with industry and university system on nuclear and other advanced research topics (neutron science, photon science). In many areas Japan has strong international links. JAERI has also been transferring know-how on radioisotope and radiation applications to the developing countries particularly through IAEA-RCA mechanisms. (author)

  17. Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission: Annual Report 2014

    International Nuclear Information System (INIS)

    2014-01-01

    The Radiological and Medical Sciences Research Institute was established in 2009, as the forth research institute of the Ghana Atomic Energy Commission. This Annual Report provides an overview of the major activities of the Institutes in the year 2014. Major items covered in the report include: Strategic objectives; Collaborations; Personnel and Organisational Structure; Facilities and Technical Services; Summary of Research and Development Projects; Human Resource Development; Publications and Technical Reports.

  18. The Sixth Rochester Conference on Coherence and Quantum Optics

    Science.gov (United States)

    1990-11-01

    0CO~ EZE3:d5 : L4 .jLU 00 Oic C) - .E V c0) Z L Fr 0 0(C F)f C0L0E J0 0J a ==2 <U .- C ) c W CCyC C< CU)L Z) 2 C) 0 ~ ()A, 0 co .2 CL Cl 2 WW2 i oa...Instabilities and Chaos in infrared Gas Lasers with Saturable Absorber" P5 S.V. LAWANDE, Q.V. LAWANDE and B.N. JAGATAP (Bhabha Atomic Research Centre, Bombay

  19. Rural medicine via mobile network

    International Nuclear Information System (INIS)

    Srivastava, Shikha; Bharade, Sandeep; Sinha, Vineet; Ananthakrishnan, T.S.; Jindal, G.D.; Prakash, C.

    2009-01-01

    Bhabha Atomic Research Centre (BARC) has developed a handheld Tele-ECG system for providing optimum cardiac care and a Mobile Network Based Telemedicine (MNBT) utility for providing telemedicine services to isolated rural population. The handheld Tele-ECG acquires, saves and transfers the electrocardiographic signal to the expert's mobile for his advice in dealing with cardiac emergencies. Similarly, MNBT utility transfers the medical images and relevant patient data from a PC based instrument to a mobile phone for further transmission to an expert for his advice. This paper summarizes these developments. (author)

  20. Indigenous robotics technology in nuclear industries (Paper No. 039)

    Energy Technology Data Exchange (ETDEWEB)

    Challappa, S; Guha, S

    1987-01-01

    Robots are essential for material handling, stripping, fitting, welding and other operations in a hazardous environment as exits in nuclear industries. Adoptivity of the equipment to environment to carry out remote activity, accuracy of the performance and quality are the primordial considerations for selection of such types of robots. The essential features of a typical robot are described in this paper. As a first step towards development of such a robot, a six-axis multipurpose robot developed in Central Workshops, Bhabha Atomic Research Centre, is also described in this paper. (author). 2 figs.

  1. Indigenous robotics technology in nuclear industries (Paper No. 039)

    International Nuclear Information System (INIS)

    Challappa, S.; Guha, S.

    1987-02-01

    Robots are essential for material handling, stripping, fitting, welding and other operations in a hazardous environment as exits in nuclear industries. Adoptivity of the equipment to environment to carry out remote activity, accuracy of the performance and quality are the primordial considerations for selection of such types of robots. The essential features of a typical robot are described in this paper. As a first step towards development of such a robot, a six-axis multipurpose robot developed in Central Workshops, Bhabha Atomic Research Centre, is also described in this paper. (author). 2 figs

  2. A comparative study of parameters used in design and operation of desalination experimental facility versus the process parameters in a commercial desalination plant

    International Nuclear Information System (INIS)

    Hanra, M.S.; Verma, R.K.; Ramani, M.P.S.

    1982-01-01

    Desalination Experimental Facility (DEF) based on multistage flash desalination process has been set up by the Desalination Division of the Bhabha Atomic Research Centre, Bombay. The design parameters of DEF and materials used for various equipment and parts of DEF are mentioned. DEF was operated for 2300 hours in six operational runs. The range of operational parameters maintained during operation and observations on the performance of the materials of construction are given. Detailed comparison has been made for the orocess parameters in DEF and those in a large size plant. (M.G.B.)

  3. Indian experience in the training of manpower for nuclear power programme

    International Nuclear Information System (INIS)

    Iyengar, P.K.; Damodaran, K.K.; Sarma, M.S.R.; Wagadarikar, V.K.

    1977-01-01

    In India manpower training for the nuclear power programme started several years before the introduction of nuclear power plants. Early efforts were concentrated on developing manpower in basic sciences related to nuclear power; for example, nuclear physics, chemistry, metallurgy of nuclear materials, aspects of chemical engineering etc. The setting up of the research centre viz. Atomic Energy Establishment Trombay, now named the Bhabha Atomic Research Centre, was an important step in this direction. A programme of design and construction of research reactors and its utilization formed the backbone of manpower development. This enabled the first batch of engineers and scientists to be trained on the design and operation in the programmes connected with research reactors and use of isotopes in industry, agriculture and medicine. The next step was to establish a Training School in the Bhabha Atomic Research Centre in which fresh graduates from the Universities could be given courses both in their own disciplines and in other inter-connected disciplines of nuclear sciences. About 200 such graduates are being trained every year since 1957. An inter-disciplinary approach with teaching by working scientists and engineers and the attachment for short periods to the research laboratories is the framework of this training programme. At present about 3000 graduates from this Training School are involved in various capacities in India's nuclear power programme. With the commissioning of the first power reactors, it became necessary to conceive of training engineers, scientists and technicians, particularly for operation and maintenance of such systems on a larger scale. For this purpose, a separate training institute at Rajasthan Atomic Power Project near Rana Pratapsagar was set up. Models, simulators and courses, particularly emphasizing the heavy water system of reactors was introduced. In addition, a number of craftsmen for servicing equipment have also been trained as

  4. Proceedings of the twelfth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2002-11-01

    The present volume contains 45 papers, presented on the twelfth Symposium of Atomic Energy Research, held in Sunny Beach, Bulgaria, 22-28 September 2002. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Core Monitoring, Surveillance and Testing, Safety Issues, Core Operation and Fuel Management, Spectral and Core Calculation Methods, Spent Fuel Transmutations and Decommissioning, Neutron Kinetics and reactor Dynamics Methods, Poster Session - according to the presentation sequence on the Symposium

  5. Proceedings of the fifteenth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, I.

    2005-11-01

    The present volume contains 59 papers, presented on the fifteenth Symposium of Atomic Energy Research, held in Znojmo, Czech Republic, 3-7 October 2005. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation Methods, Core Design, Operation and Fuel Management, Core Monitoring, Surveillance and Testing, Neutron Kinetics and Reactor Dynamics Methods, Criticality Safety, Spent Fuel, and CFD Codes Application - according to the presentation sequence on the Symposium

  6. Proceedings of the eleventh Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2001-12-01

    The present volume contains 57 papers, presented on the eleventh Symposium of Atomic Energy Research, held in Csopak, Hungary, 24-28 September 2001. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Improvement of Neutron Physical Codes and Methods, Reactor Kinetics and Dynamics, Thermal-Hydraulics, Spent Fuel - Criticality Radiation, Fuel Behaviour, Spent Fuel Transmutation, Evaluation of Reactor Physical Measurements, Core Design-Core Calculations-according to the presentation sequence on the Symposium (Author)

  7. Proceedings of the thirteenth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2003-11-01

    The present volume contains 58 papers, presented on the thirteenth Symposium of Atomic Energy Research, held in Dresden, Germany, 22-26 September 2003. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Core Monitoring, Surveillance and Testing, Safety Issues, Spectral and Core Calculation Methods, Core Operation and Fuel Management, Spent Fuel Transmutations and Decommissioning, Neutron Kinetics and reactor Dynamics Methods, Poster Session - according to the presentation sequence on the Symposium

  8. Summary and statistical analysis of environmental monitoring data in the Oarai Research Establishment, Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Tamura, Katsuhiro; Kitano, Kyoshiro; Sibanuma, Yukio; Takasaki, Koichi; Ohhata, Tsutomu

    1998-03-01

    In the Oarai Research Establishment, Japan Atomic Energy Research Institute (JAERI), the environmental monitoring has been conducted for about 29 years since April 1968. The results are discussed for evaluation of long-term and short-term fluctuation in the radiological conditions in the Oarai area. This report summarises the data of the environmental monitoring in Oarai, and statistical analyses were made of the data collected from 1985 through 1994. (author)

  9. Keynote address : technology management in the knowledge society

    International Nuclear Information System (INIS)

    Chidambaram, R.

    1994-01-01

    In the process of establishing our nuclear power programme, we have helped in establishing many facets of the present industrial infrastructure in the country and in improving the quality of the products of many companies, big and small. Nuclear Power Corporation and the other industrial units of Department of Atomic Energy (DAE) have the powerful R and D backup of Bhabha Atomic Research Centre and the other research centres of DAE. There is extra-ordinary multi-disciplinary research expertise and technological capability in BARC, whose full potential I came to realize for the first time during the development programme and the project execution of the Peaceful Explosion Experiment at Pokhran in 1974. This expertise and capability should enable us to advance rapidly in the nuclear technology field and also help India to rapid progress in tomorrow's knowledge society. But these require careful management of technology development in the coming decades. (author)

  10. Present status and future plans of the National Atomic Research Center of Malaysia

    International Nuclear Information System (INIS)

    Rashid, N.K.

    1980-01-01

    The Malaysian Atomic Research Center (PUSPATI) was established in 1972 and operates under the Ministry of Science, Technology and the Environment. It is the first research center of this kind in Malaysia. Some of the objectives of this center are: operation and maintenance of the research reactor; research and development in reactor science and technology; production of short-lived radioisotopes for use in medicine, agriculture and industry; coordination of the utilization of the reactor and its experimental facilities among the various research institutes and universities; training in nuclear radiation field; personnel monitoring and environmental surveillance

  11. Fiber optic transmission system delivered to Fusion Research Center of Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Hayashida, Mutsuo; Hiramoto, Kiyoshi; Yamazaki, Kunihiro

    1983-01-01

    In general there are many electromagnetically induced noises in the premises of factories, power plants and substations. Under such electrically bad environments, for the computer data transmission that needs high speed processing and high reliability, the optical fiber cable is superion to the coaxial cable or the flat-type cable in aspects of the inductionlessness and a wide bandwidth. Showa Electric Wire and Cable Co., Ltd. has delivered and installed a computer data transmission system consisting of optical modems and optical fiber cables for connecting every experiment building in the premises of Fusion Research Center of Japan Atomic Energy Research Institute. This paper describes the outline of this system. (author)

  12. BARC golden jubilee and DAE-BRNS life sciences symposium 2006 on trends in research and technologies in agriculture and food sciences: abstracts

    International Nuclear Information System (INIS)

    2006-01-01

    Better methods of agricultural production, availability of hybrid and mutant varieties of crop plants, irrigation, fertilizers and pesticides have all helped boost up agricultural production, and famines and droughts remain restricted to a few pockets in the world. Innovative approach to step up agricultural production, especially of food crops symbolize synergy and synthesis of conventional and mutation breeding aided by modern biotechnological tools like DNA markers and gene manipulation in tune with the policy of environmental and soil conservation. It has increased the production of oil seeds in India during the last decade with a shift from groundnut and mustard to soybean and sunflower. Bhabha Atomic Research Centre (BARC), Mumbai which has strongly pursued the important societal programmes using nuclear technology in agriculture and health, has made a very significant impact on the country's agriculture by developing 27 new crop varieties mostly of oil seeds and pulses. Further, radiation processing of food, pioneered in India by BARC, is now gaining global acceptance and has opened new vistas for agriculture exports. The present symposium is dedicated to trends in research of technologies in agriculture and food sciences. The papers relevant to INIS are indexed separately

  13. Romi Bhabha and Cosmic Ray Research in India

    Indian Academy of Sciences (India)

    the era of 'elementary particle physics' at man-made accelerators. Even 86 ... to initiate work in a highly sophisticated and highly technology dependent field so ... education at the Cathedral and John Connon High School in. Bombay and· his ...

  14. Australian Atomic Energy Commission: A new energy research establishment at Lucas Heights

    Energy Technology Data Exchange (ETDEWEB)

    Moyal, A [Sydney Univ. (Australia). Dept. of Government and Public Administration

    1980-02-01

    A review of the role of the Atomic Energy Commission has recommended that the Lucas Heights establishment should engage in research on energy sources in general, rather than nuclear only as at present, and that certain of its present functions (regulatory and manufacturing) should be handled by other organisations.

  15. Current status of research and development at Japan Atomic Energy Agency

    International Nuclear Information System (INIS)

    2015-01-01

    This paper introduces the current state and future prospects of Japan Atomic Energy Agency, with a focus on the main achievements of the research and development as of November FY2014. The items of research and development are as follows; (1) research and development related to measures for the accident of Fukushima Daiichi Nuclear Power Station, (2) technological assistance for ensuring safety in the research and development and utilization of nuclear power, (3) research science related to the research and development and utilization of nuclear power, (4) practical application of FBR cycle, (5) technological development related to back-end measures, (6) research and development of technological system to retrieve nuclear fusion energy, and (7) common projects (computational science / engineering / research, technological development and policy assistance on nuclear non-proliferation and nuclear security, and various activities such as dissemination of the fruits of research and development, human resource development, and technological cooperation). (A.O.)

  16. Facility at CIRUS reactor for thermal neutron induced prompt γ-ray spectroscopic studies

    International Nuclear Information System (INIS)

    Biswas, D.C.; Danu, L.S.; Mukhopadhyay, S.; Kinage, L.A.; Prashanth, P.N.; Goswami, A.; Sahu, A.K.; Shaikh, A.M.; Chatterjee, A.; Choudhury, R.K.; Kailas, S.

    2013-01-01

    A facility for prompt γ-ray spectroscopic studies using thermal neutrons from a radial beam line of Canada India Research Utility Services (CIRUS) reactor, Bhabha Atomic Research Centre (BARC), has been developed. To carry out on-line spectroscopy experiments, two clover germanium detectors were used for the measurement of prompt γ rays. For the first time, the prompt γ–γ coincidence technique has been used to study the thermal neutron induced fission fragment spectroscopy (FFS) in 235 U(n th , f). Using this facility, experiments have also been carried out for on-line γ-ray spectroscopic studies in 113 Cd(n th , γ) reaction

  17. Report on R and D activities of Health Physics Division 1994-1995

    Energy Technology Data Exchange (ETDEWEB)

    Raju, A; Narayanan, K K; Katoch, D S; Sharma, R C [comps.; Health Physics Division, Bhabha Atomic Research Centre, Mumbai (India)

    1996-10-01

    This report is a compilation of the activities and also of the results of various R and D programmes of the Health Physics Division of Bhabha Atomic Research Centre (BARC) during the period 1994-1995. The topics covered are: environmental studies, radiation dosimetry- internal and external, operational health physics and nuclear safety, instruments and techniques, radiation physics, mathematical modelling and software development, micrometeorology and industrial hygiene. The matter is presented in the form of abstracts with the publication details. Also included are extracts from IAEA research agreements and the summary of theses submitted by the staff members of the Division during the above period.

  18. Progress report : Technical Physics Division

    International Nuclear Information System (INIS)

    Gopalaraman, C.P.; Deshpande, R.Y.

    1978-01-01

    The research and development work carried out in the Technical Physics Division of the Bhabha Atomic Research Centre, Bombay, is reported. Some of the achievements are: (1) fabrication of mass spectrometers for heavy water analysis and lithium 6/7 isotope ratio measurement, (2) fabrication of electronic components for mass spectrometers, (3) growing of sodium iodide crystals for radiation detectors, (4) development of sandwich detectors comprising of NaI(Tl) and CaI(Na), (5) fabrication of mass spectrometer type leak detectors and (6) fabrication of the high vacuum components of the vacuum system of the variable energy cyclotron based at Calcutta. (M.G.B.)

  19. Acoustic emission experiments for PHWR technology development

    International Nuclear Information System (INIS)

    Pellionisz, P.; Jha, S.K.; Goswami, G.L.

    1992-06-01

    An Indian-Hungarian joint research project has been started with the aim of applying acoustic emission testing to solve specific problems of nuclear power plants. Acoustic emission measurement and analyzing instrumentation and software have been provided by the Hungarian side, while the measurements have been performed at the Bhabha Atomic Research Centre (BARC), India. The first task of the project was to check the capability of the method for leakage detection and shuttle movement monitoring of Pressurized Heavy Water Reactors (PHWR), and for monitoring manufacturing processes as laser welding. The preliminary measurements and results are presented. (R.P.) 15 refs.; 11 figs.; 3 tabs

  20. Report on R and D activities of Health Physics Division 1994-1995

    International Nuclear Information System (INIS)

    Raju, A.; Narayanan, K.K.; Katoch, D.S.; Sharma, R.C.

    1996-10-01

    This report is a compilation of the activities and also of the results of various R and D programmes of the Health Physics Division of Bhabha Atomic Research Centre (BARC) during the period 1994-1995. The topics covered are: environmental studies, radiation dosimetry- internal and external, operational health physics and nuclear safety, instruments and techniques, radiation physics, mathematical modelling and software development, micrometeorology and industrial hygiene. The matter is presented in the form of abstracts with the publication details. Also included are extracts from IAEA research agreements and the summary of theses submitted by the staff members of the Division during the above period

  1. Intercalibration of transuranic measurements

    International Nuclear Information System (INIS)

    Fukai, R.; Ballestra, S.; Thein, M.

    1982-01-01

    One of the major objectives of the coordinated research programme on Transuranic Cycling Behaviour in the Marine Environment has been to achieve the comparability of the measurement results among the laboratories from different countries participating in the programme. In order to fulfil this objective, the intercalibration exercises of transuranic measurements using sea water and sediment samples were organized by the Monaco Laboratory within the duration of the programme in 1979-1981. The sediment and sea water samples were collected respectively by the Bhabha Atomic Research Centre of India and the Hydrographic Institute of the Federal Republic of Germany. In the present report the results of these intercalibration exercises are surveyed

  2. Overview of plant dosimetry in agricultural commodities

    International Nuclear Information System (INIS)

    Khedkar, Kalpana C.

    2014-01-01

    Extensive research carried out for more than three decades at Bhabha Atomic Research Centre, Bombay and other laboratories in India had conclusively established application of radiation processing of food for catering to the domestic and export market. A major milestone of food irradiation was reached in the country when Board of Radiation and Isotope Technology, a constituent unit of Department of Atomic Energy had set up 'SPICE PLANT' at Vashi, Navi Mumbai in the year 2000. It was first demonstration plant for radiation processing of spices for hygienisation purpose. For expanding scope of applications in agricultural sector, the next step in this direction was taken by BARC for setting up 'KRUSHAK' plant at Lasalgaon, Nashik. This was the first plant for low dose application of gamma radiation in agricultural commodities i.e. for sprout inhibition in onion and potatoes

  3. Atomic physics research with synchrotron radiation

    International Nuclear Information System (INIS)

    Crasemann, B.; Wuilleumier, F.

    1985-01-01

    This chapter discusses applications of synchrotron light in atomic and molecular physics. Use of the radiation from storage rings has expanded and lent access to new areas of absorption and photoemission spectroscopy and scattering experiments. Techniques applied in connection with synchrotron radiation are discussed including absorption spectroscopy, photoelectron spectroscopy, fluorescence spectroscopy and X-ray scattering. Problem areas that are being studied by the techniques mentioned above are discussed. Synchrotron radiation has provided the means for measuring the threshold-excitation and interference effects that signal the breakdown of the two-step model of atomic excitation/deexcitation. Synchrotron radiation provides more means of excited-state photoionization measurements

  4. PREFACE: 5th DAE-BRNS Workshop on Hadron Physics (Hadron 2011)

    Science.gov (United States)

    Jyoti Roy, Bidyut; Chatterjee, A.; Kailas, S.

    2012-07-01

    The 5th DAE-BRNS Workshop on Hadron Physics was held at the Bhabha Atomic Research Centre (BARC), Mumbai from 31 October to 4 November 2011. This workshop series, supported by the Board of Research in Nuclear Sciences, Department of Atomic Energy (BRNS, DAE), Govt. of India, began ten years ago with the first one being held at BARC, Mumbai in October 2002. The second one was held at Puri in 2005, organized jointly by Institute of Physics, Bhubneswar and Saha Institute of Nuclear Physics, Kolkata. The 3rd and 4th ones took place, respectively, at Shantineketan in 2006, organized by Visva Bharati University, and at Aligarh in 2008, organized by Aligarh Muslim University, Aligarh. The aim of the present workshop was to bring together the experts and young researchers in the field of hadron physics (both experiment and theory) and to have in-depth discussions on the current research activities in this field. The format of the workshop was: a series of review lectures by various experts from India and abroad, the presentation of advanced research results by researchers in the field, and a review of major experimental programs being planned and pursued in major laboratories in the field of hadron physics, with the aim of providing a platform for the young participants for interaction with their peers. The upcoming international FAIR facility at GSI is a unique future facility for studies of hadron physics in the charm sector and hyper nuclear physics. The Indian hadron physics community is involved in this mega science project and is working with the PANDA collaboration on the development of detectors, simulation and software tools for the hadron physics programme with antiprotons at FAIR. A one-day discussion session was held at this workshop to discuss India-PANDA activities, the current collaboration status and the work plan. This volume presents the workshop proceedings consisting of lectures and seminars which were delivered during the workshop. We are thankful to

  5. Measurement of copper vapour laser-induced deformation of ...

    Indian Academy of Sciences (India)

    2014-02-14

    Feb 14, 2014 ... Laser & Plasma Technology Division, Beam Technology Development Group,. Bhabha Atomic ... of dielectric-coated mirror, caused by an incident repetitive pulsed laser beam with high average power. Minimum ... the optical surface deformation, caused by irradiation by a copper vapour laser (CVL) beam.

  6. 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

  7. Experimental atomic physics

    International Nuclear Information System (INIS)

    Anon.

    1985-01-01

    The experimental atomic physics program within the physics division is carried out by two groups, whose reports are given in this section. Work of the accelerator atomic physics group is centered around the 6.5-MV EN tandem accelerator; consequently, most of its research is concerned with atomic processes occurring to, or initiated by, few MeV/amu heavy ions. Other activities of this group include higher energy experiments at the Holifield Heavy Ion Research Facility (HHIRF), studies of electron and positron channeling radiation, and collaborative experiments at other institutions. The second experimental group concerns itself with lower energy atomic collision physics in support of the Fusion Energy Program. During the past year, the new Electron Cyclotron Resonance Source has been completed and some of the first data from this facility is presented. In addition to these two activities in experimental atomic physics, other chapters of this report describe progress in theoretical atomic physics, experimental plasma diagnostic development, and atomic data center compilation activities

  8. Progress report of the Metallurgy Division for the period 1978-1980

    International Nuclear Information System (INIS)

    Sharma, B.D.; Mohan, Ashok; Bose, D.K.; Rao, C.N.; Chouthai, S.S.

    1980-01-01

    The research and development (R and D) work of the Metallurgy Division of the Bhabha Atomic Research Centre at Bombay for the period 1978-1980 is reported in the form of individual summaries under the headings: extractive metallurgy section, physical metallurgy section, corrosion and electrometallurgy section, ceramics section. Progress of work of beryllium pilot plant project, programme for R-5 utilisation for materials irradiation research project, development of rare, reactive and refractory metals, and development of ceramics materials for MHD programme is surveyed. Lists of publications, deputations, visits, conferences, colloquia are given. A chart at the end shows the various sections of the Division and personnel in each section. (M.G.B.)

  9. Regulatory measures of BARC Safety Council to control radiation exposure in BARC Facilities

    International Nuclear Information System (INIS)

    Rajdeep; Jolly, V.M.; Jayarajan, K.

    2018-01-01

    Bhabha Atomic Research Centre is involved in multidisciplinary research and developmental activities, related to peaceful use of nuclear energy including societal benefits. BARC facilities at different parts of India include nuclear fuel fabrication facilities, research reactors, nuclear recycle facilities and various Physics, Chemistry and Biological laboratories. BARC Safety Council (BSC) is the regulatory body for BARC facilities and takes regulatory measures for radiation protection. BSC has many safety committees for radiation protection including Operating Plants Safety Review Committee (OPSRC), Committee to Review Applications for Authorization of Safe Disposal of Radioactive Wastes (CRAASDRW) and Design Safety Review Committees (DSRC) in 2 nd tier and Unit Level Safety Committees (ULSCs) in 3 rd tier under OPSRC

  10. Report on R and D activities of Air Monitoring Section (Division of Radiological Protection) 1979-1984

    International Nuclear Information System (INIS)

    Mishra, U.C.; Sadasivan, S.

    1985-01-01

    The work done by the Air Monitoring Section of the Bhabha Atomic Research Centre, Bombay, during the period 1979-1984 is reported. The work is reported in the form of programme summaries grouped under the headings: (1) atmospheric radioactivity, (2) biospheric radioactivity, (3) radioactivity monitoring systems, (4) environmental monitoring for trace constituents, (5) pollution monitoring systems, (6) aerosal studies, and (7) atmospheric physics and chemistry. The Section continued to supply continuous in-plant air/water radioactivity monitoring systems and continuous monitoring systems for gaseous constituents to various units of the Department of Atomic Energy. A list of papers published in journals, papers presented at conferences and symposia and technical reports published by the staff-members of the Section is given. (M.G.B.)

  11. Report of cooperative research programs in the field of ion-beam breeding between Japan Atomic Energy Agency and Malaysian Nuclear Agency (Bilateral cooperative research)

    International Nuclear Information System (INIS)

    Ahmad, Zaiton; Oono, Yutaka

    2016-03-01

    This report summarizes Bilateral Cooperative Research between Japan Atomic Energy Agency and Malaysian Nuclear Agency (a representative of the Government of Malaysia) implemented from 2002 to 2012 under 'THE IMPLEMENTING ARRANGEMENT BETWEEN THE GOVERNMENT OF MALAYSIA AND THE JAPAN ATOMIC ENERGY AGENCY ON THE RESEARCH COOPERATION IN THE FIELD OF RADIATION PROCESSING'. The research activities in two Cooperative Research Programs, 'Mutation Induction of Orchid Plants by Ion Beams' and 'Generating New Ornamental Plant Varieties Using Ion Beams' performed 2002-2007 and 2007-2012, respectively, are contained. The lists of steering committee meetings, irradiation experiments, and publications/presentations of each program are also attached in the Appendixes. (author)

  12. Report on application results of the nuclear reactor in Atomic Energy Research Laboratory, Rikkyo University. April 1994 - March 1995

    International Nuclear Information System (INIS)

    1995-01-01

    This report is on researching action state, application state, management state, and others of 1994 fiscal year at the Atomic Energy Research Laboratory, Rikkyo University. The experimental reactor has been used for the studies such as application of neutron radioactivity analysis to multi fields, application of fission and alpha track method to age determination and metallurgy, hot atom chemistry, neutron radiation effect on semiconductors and others, nuclear data measurement, organism, materials and products using neutron radiography, and development and application to inspection of radiation detectors such as neutron detector. This report was a report shown as a shape of research results of actions of the researchers. And, another report of colaborate research results using the Rikkyo University reactor was also published from the Atomic Energy Center, the University of Tokyo begun since April, 1974. (G.K.)

  13. Research and development of grid computing technology in center for computational science and e-systems of Japan Atomic Energy Agency

    International Nuclear Information System (INIS)

    Suzuki, Yoshio

    2007-01-01

    Center for Computational Science and E-systems of the Japan Atomic Energy Agency (CCSE/JAEA) has carried out R and D of grid computing technology. Since 1995, R and D to realize computational assistance for researchers called Seamless Thinking Aid (STA) and then to share intellectual resources called Information Technology Based Laboratory (ITBL) have been conducted, leading to construct an intelligent infrastructure for the atomic energy research called Atomic Energy Grid InfraStructure (AEGIS) under the Japanese national project 'Development and Applications of Advanced High-Performance Supercomputer'. It aims to enable synchronization of three themes: 1) Computer-Aided Research and Development (CARD) to realize and environment for STA, 2) Computer-Aided Engineering (CAEN) to establish Multi Experimental Tools (MEXT), and 3) Computer Aided Science (CASC) to promote the Atomic Energy Research and Investigation (AERI). This article reviewed achievements in R and D of grid computing technology so far obtained. (T. Tanaka)

  14. Proceedings of the eighth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, I.

    1998-10-01

    These are the remaining 9 papers, presented on the eighth Symposium of Atomic Energy Research, held in Bystrice nad Perstejnem, Czech Republic, 21-25 September 1998. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation Methods, Core Design, Operation and Fuel Management, Core Monitoring, Surveillance and Testing, Neutron Kinetics and reactor Dynamics Methods, Safety Issues and Analysis, Rod Drop Reactivity Measurements, Criticality safety, Spent Fuel and Decommissioning, - according to the presentation sequence on the Symposium

  15. Proceedings of the twentieth symposium of atomic energy research

    International Nuclear Information System (INIS)

    Vidovszky, I.

    2010-10-01

    The present volume contains 69 papers, presented on the twentieth symposium of atomic energy research, held in Hanasaari, Espoo, Finland, 20-24 September 2010. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Fuel Management, Spectral and Core Calculations, Core Surveillance and Monitoring, CFD Analysis, Reactor Dynamics Thermal Hydraulics and Safety Analysis, Physical Problems of Spent Fuel Decommissioning and Radwaste, Actinide Transmutation and Spent Fuel Disposal, Core Operation, Experiments and Code Validation - according to the presentation sequence on the Symposium. (Author)

  16. Proceedings of the 16. Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2006-10-01

    The present volume contains 56 papers, presented on the sixteenth Symposium of Atomic Energy Research, held in Bratislava, Slovakia, 25-29 September 2006. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation, Core Operation Experiments and Code Validation, Fuel Management, Core Surveillance and Monitoring, Reactor Dynamics Thermal Hydraulics and Safety Analysis, Physical Problems of Spent Fuel Decommissioning, and Radwaste, Actinide Transmutation and Spent Fuel Disposal - according to the presentation sequence on the Symposium (Author)

  17. Atomic Energy Authority Bill (amendment on exploitation of results of research)

    International Nuclear Information System (INIS)

    Gray, J.H.N.; Stoddart, D.L.; Lloyd, R.G.

    1986-01-01

    This amendment arises from legal doubts about the extent of the UKAEA's present powers to exploit the results of its research. The new clause, which amends the Atomic Energy Authority Bill, allows that the Authority has power to exploit commercially by selling, licensing the use of, or otherwise dealing with any intellectual property (patents, trademarks, copyright, registered designs etc) resulting from research carried out by it, or on its behalf, or which is available because of exchange of results or collaboration with others. The 12 minute debate is reported verbatim. The amendment was agreed to. (U.K.)

  18. Atomic physics

    International Nuclear Information System (INIS)

    Armbruster, P.; Beyer, H.; Bosch, F.; Dohmann, H.D.; Kozhuharov, C.; Liesen, D.; Mann, R.; Mokler, P.H.

    1984-01-01

    The heavy ion accelerator UNILAC is well suited to experiments in the field of atomic physics because, with the aid of high-energy heavy ions atoms can be produced in exotic states - that is, heavy atoms with only a few electrons. Also, in close collisions of heavy ions (atomic number Z 1 ) and heavy target atoms (Z 2 ) short-lived quasi-atomic 'superheavy' systems will be formed - huge 'atoms', where the inner electrons are bound in the field of the combined charge Z 1 + Z 2 , which exceeds by far the charge of the known elements (Z <= 109). Those exotic or transient superheavy atoms delivered from the heavy ion accelerator make it possible to study for the first time in a terrestrial laboratory exotic, but fundamental, processes, which occur only inside stars. Some of the basic research carried out with the UNILAC is discussed. This includes investigation of highly charged heavy atoms with the beam-foil method, the spectroscopy of highly charged slow-recoil ions, atomic collision studies with highly ionised, decelerated ions and investigations of super-heavy quasi-atoms. (U.K.)

  19. Recommendations regarding problems of research policy relating to the establishment and operation of atomic power stations in Denmark

    Energy Technology Data Exchange (ETDEWEB)

    1976-01-01

    This report, which was submitted by the Danish Planning Council for Research to the Parliamentary Committee on Scientific Research, is based on reports from the DANISH Atomic Energy Commission. and on a sub-committee appointed by the Planning Council, as well as on the comments of the Danish Research Council on these reports. The Planning Council submit that: (1) the question of the introduction and scope of Danish utilization of atomic energy should be considered as a link in setting up a total plan for energy policy elucidating the possibilities in the energy field from both aspects of supply and demand, (2) that there is a continuous interaction between energy policy and research policy in the subject field, (3) that the total resources for energy research and development should be considerably increased, (4) that investigations into the economy of atomic power should be intensified, and (5) that investigations of possibilities for long-term storage of radioactive waste in Denmark should be speeded up. Further, the Planning Council points out the need for research in areas such as (a) wind and solar energy, (b) the environmental impact of utilizing atomic power in relation to that of utilizing other forms of power, (c) economic and social effects of different forms of energy supply, as well as the problems of siting, decision taking and public information and participation and finally, (d) the utilization of the energy raw materials found in Greenland.

  20. Recommendations regarding problems of research policy relating to the establishment and operation of atomic power stations in Denmark

    International Nuclear Information System (INIS)

    1976-01-01

    This report, which was submitted by the Danish Planning Council for Research to the Parliamentary Committee on Scientific Research, is based on reports from the DANISH Atomic Energy Commission. and on a sub-committee appointed by the Planning Council, as well as on the comments of the Danish Research Council on these reports. The Planning Council submit that: 1) the question of the introduction and scope of Danish utilization of atomic energy should be considered as a link in setting up a total plan for energy policy elucidating the possibilities in the energy field from both aspects of supply and demand, 2) that there is a continuous interaction between energy policy and research policy in the subject field 3) that the total resources for energy research and development should be considerably increased, 4) that investigations into the economy of atomic power should be intensified, and 5) that investigations of possibilities for long-term storage of radioactive waste in Denmark should be speeded up. Further, the Planning Council points out the need for research in areas such as a) wind and solar energy, b) the environmental impact of utilizing atomic power in relation to that of utilizing other forms of power, c) economic and social effects of different forms of energy supply, as well as the problems of siting, decision taking and public information and participation and finally, d) the utilization of the energy raw materials found in Greenland. (B.P.)

  1. Cooperation in research in the European Atomic Energy Community (EURATOM)

    International Nuclear Information System (INIS)

    Marka, Philippe.

    1977-01-01

    This work studies the legal instruments for cooperative research granted to Euratom under the Treaty establishing the European Atomic Energy Community, and the conditions whereby concrete use was made of these instruments. This assessment of Euratom's efforts to launch a community nuclear industry is accompanied by an analysis of the respective roles of the bodies of the Community, the Council and the Commission, as well as of the circumstances which, according to the author, have led to a paralysis of this institution. (NEA) [fr

  2. The Advanced Light Source: A new tool for research in atomic and molecular physics

    International Nuclear Information System (INIS)

    Schlachter, F.; Robinson, A.

    1991-04-01

    The Advanced Light Source at the Lawrence Berkeley Laboratory will be the world's brightest synchrotron radiation source in the extreme ultraviolet and soft x-ray regions of the spectrum when it begins operation in 1993. It will be available as a national user facility to researchers in a broad range of disciplines, including materials science, atomic and molecular physics, chemistry, biology, imaging, and technology. The high brightness of the ALS will be particularly well suited to high-resolution studies of tenuous targets, such as excited atoms, ions, and clusters. 13 figs., 4 tabs

  3. Evaluation of three atmospheric dispersion models using tracer release experiment data

    International Nuclear Information System (INIS)

    Daoo, V.J.; Oza, R.B.; Pandit, G.G.; Sadasivan, S.; Venkat Raj, V.

    2004-01-01

    Performance of three atmospheric dispersion models viz: (1) Gaussian Plume Model (GPM), (2) Equi-Distance PUFF Model (EDPUFFM) and (3) Particle Trajectory Model (PTM) is evaluated using field data collected from a tracer (SF 6 ) release experiment. The experiment was conducted within the campus of the Bhabha Atomic Research Centre (BARC), located at Trombay, Mumbai, India. The three models used are currently in operation at the BARC. The first one is a standard, well-documented empirical model while the other two models have been developed at the Bhabha Atomic Research Centre. The PTM is a numerical model while the EDPUFFM is a hybrid model combining both the numerical and analytical techniques. The procedure for evaluation is as per the recommendations of 1980 AMS (American Meteorological Society) workshop on atmospheric dispersion models performance evaluation. In addition, linear regression analysis has also been carried out. The regression analysis reveals that on an average, the EDPUFFM and the GPM predictions are higher by a factor of about 1.5 while the PTM predictions are lower by a factor of about 4. Comparison of various performance measures reveals that the performance of the EDPUFFM is marginally better than that of the GPM while the PTM performance is comparatively poor. The uncertainty factors obtained in this study, especially for higher concentration range ( > 100 ppt) are similar to those obtained in other validation study carried out elsewhere to validate the GPM predictions. However, for lower concentration range and for the conditions after the source is switched off, all the three models perform poorly in predicting the concentration. (author)

  4. Analytical Chemistry Division : annual report (for) 1985

    International Nuclear Information System (INIS)

    Mahadevan, N.

    1986-01-01

    An account of the various activities of the Analytical Chemistry Division of the Bhabha Atomic Research Centre, Bombay, during 1985 is presented. The main function of the Division is to provide chemical analysis support to India's atomic energy programme. In addition, the Division also offers its analytical services, mostly for measurement of concentrations at trace levels to Indian industries and other research organization in the country. A list of these determinations is given. The report also describes the research and development (R and D) activities - both completed and in progress, in the form of individual summaries. During the year an ultra trace analytical laboratory for analysis of critical samples without contamination was set up using indigenous material and technology. Publications and training activities of the staff, training of the staff from other institution, guidance by the staff for post-graduate degree and invited talks by the staff are listed in the appendices at the end of the report. (M.G.B.)

  5. Design, fabrication, installation and shielding integrity testing of source storage container for automatic source movement system used in TLD calibration facility

    International Nuclear Information System (INIS)

    Subramanian, V.; Baskar, S.; Annalakshmi, O.; Jose, M.T.; Jayshree, C.P.; Choudry, Shreelatha

    2012-01-01

    A state-of-art TLD laboratory has been commissioned in January 2000 at Radiological Safety Division of Indira Gandhi Centre for Atomic Research (IGCAR). The laboratory provides personnel monitoring service to 2000 occupational workers from Indira Gandhi Centre for Atomic Research and Bhabha Atomic Research Centre facilities. The laboratory has been accredited by the Radiation Safety Systems Division (RSSD), Bhabha Atomic Research Centre (BARC) since year 2002. The laboratory has exclusive facility for the calibration of the TLD cards. As apart of accreditation procedure and taking into account of geometry effect, the dose rate at the card position is determined by the accreditation authorities by using graphite chamber (secondary or national standard instrument) and often re estimated by a condenser R meter (M/s Victoreen, Germany) by our laboratory. As per the regulatory requirement, the exposure protocols should be automated. Towards this an automatic source movement system has been augmented in the calibration facility. By using the system, the source will be brought to the irradiation position by pneumatically and exposures will be terminated by counter, timer and triggering system. To accomplish this task a lead container has been designed, fabricated and mounted at the beneath of the calibration table for the storage of source. As per the automation process, a lead container for the source storage has been designed and installed beneath to the Calibration Table. The container was designed to hold a 3Ci 137 Cs source, but present activity of the source is 1.2Ci. Hence, the shielding integrity was tested with higher active source (1.7Ci 60 Co). The dose rate measured outside on the circumference of the container at the middle of the source is found to be the same as calculated using QAD CGGP calculations. The top plug is so designed to avoid inadvertent upward movement of the source. Though, the shielding was not adequate on top of the top plug, however it does

  6. Activities of Radiation Standard Section

    International Nuclear Information System (INIS)

    Kannan, A.; Rao, P.S.; Sachadev, R.N.; Shaha, V.V.; Sharma, D.; Srivastava, P.K.

    1992-01-01

    A brief account of the various facilities and services provided by the Radiation Standards Section (RSS) of the Bhabha Atomic Research Centre, Bombay is given. RSS maintains the primary and secondary standards of various parameters of radiation measurements. It ensures accurate radiological measurements as per international requirements, through periodic international intercomparisons of national standards. It also provides calibration services to various users of radiation sources and instruments. The activities of RSS are described under the headings: (1) Radiological Metrology Standards, (2) Radionuclide Standards, Neutron Metrology, (4) Instruments Calibration, (5) Non-ionizing Radiations, and (6) Instrumentation. (author). figs., tabs

  7. The national project on nuclear desalination in India

    International Nuclear Information System (INIS)

    Misra, B.M.

    1996-01-01

    BARC (Bhabha Atomic Research Centre) has successfully developed both thermal and membrane desalination technologies for seawater and brackish water desalination. 425 m 3 /d Multi-Stage-Flash (MSF) desalination plant producing good quality water from seawater suitable for drinking and industrial water requirements operated. Knowhow developed for Low Temperature Vacuum Evaporation (LTVE) desalination plants utilizing waste heat. Reverse Osmosis (RO) technology developed at the centre has been successfully demonstrated. The experience obtained from the above plants has been utilized for designing a large scale hybrid desalination plant based on MSF and RO for augmenting the drinking water supply in water scarcity coastal areas

  8. Video frame processor

    International Nuclear Information System (INIS)

    Joshi, V.M.; Agashe, Alok; Bairi, B.R.

    1993-01-01

    This report provides technical description regarding the Video Frame Processor (VFP) developed at Bhabha Atomic Research Centre. The instrument provides capture of video images available in CCIR format. Two memory planes each with a capacity of 512 x 512 x 8 bit data enable storage of two video image frames. The stored image can be processed on-line and on-line image subtraction can also be carried out for image comparisons. The VFP is a PC Add-on board and is I/O mapped within the host IBM PC/AT compatible computer. (author). 9 refs., 4 figs., 19 photographs

  9. Annual report 1987-88

    International Nuclear Information System (INIS)

    1988-01-01

    The annual report of the Department of Atomic Energy (India) for the financial year 1987-88 describes: (1) Research and Development (R and D) activities of its research establishments, namely, the Bhabha Atomic Research Centre, Bombay; the Indira Gandhi Centre for Atomic Research, Kalpakkam and the Centre for Advanced Technology, Indore; and of almost fully funded research institutions, namely, the Tata Institute of Fundamental Research, Bombay; Tata Memorial Centre, Bombay; Saha Institute of Nuclear Physics, Calcutta; and Institute of Physics, Bhubaneshwar; (2) performance of nuclear power stations at Tarapur, Rawatbhata and Kalpakkam, various heavy water plants around the country, the Nuclear Fuel Complex, Hyderabad, fuel reprocessing plants, (3) exploration work for atomic minerals, (4) regulatory and safety functions, (5) performance of public sector undertakings, namely, Indian Rare Earths Ltd., Electronics Corporation of India Ltd., and Uranium Corporation of India Ltd., (6) other activities including international relations, financial assistance to research schemes in science and engineering etc. During the year, the Nuclear Power Board was converted into Nuclear Power Corporation (NPC) of India Ltd. with the objectives of managing the nuclear power stations on commercial lines and raising finance from the public for its projects. The Board of Radiation and Isotope Technology (BRIT) was set up to promote radiation technology on a commercial basis in the country. (M.G.B.). Coloured pictures

  10. Atomic physics

    International Nuclear Information System (INIS)

    Anon.

    1976-01-01

    Research activities in atomic physics at Lawrence Berkeley Laboratory during 1976 are described. Topics covered include: experiments on stored ions; test for parity violation in neutral weak currents; energy conservation and astrophysics; atomic absorption spectroscopy, atomic and molecular detectors; theoretical studies of quantum electrodynamics and high-z ions; atomic beam magnetic resonance; radiative decay from the 2 3 Po, 2 levels of helium-like argon; quenching of the metastable 2S/sub 1/2/ state of hydrogen-like argon in an external electric field; and lifetime of the 2 3 Po level of helium-like krypton

  11. Atomic energy for progress

    International Nuclear Information System (INIS)

    1974-01-01

    The film discusses the functions and activities of the Philippine Atomic Energy Commission. Shown are the applications of atomic energy in research, agriculture, engineering, industry and medicine, as well as the construction of the research reactor and its inauguration by President Marcos

  12. Section of Atomic Collisions

    International Nuclear Information System (INIS)

    Berenyi, D.; Biri, S.; Gulyas, L.; Juhasz, Z.; Kover, A.; Orban, A.; Palinkas, J.; Papp, T.; Racz, R.; Ricz, S.

    2009-01-01

    The Section of Atomic Collisions is a research unit with extended activity in the field of atomic and molecular physics. Starting from the study of atomic processes at the beamlines of nuclear physics accelerators in the seventies, our research community became one of the centers of fundamental research in Atomki. We also have a strong connection to materials sciences especially along the line of electron and ion spectroscopy methods. Our present activity covers a wide range of topics from atomic collision mechanisms of fundamental interest, to the complex interactions of electrons, ions, photons and antiparticles with atoms, molecules, surfaces, and specific nanostructures. In the last few years, an increasing fraction of our present topics has become relevant for applications, e.g., molecular collision studies for the radiation therapy methods of tumors, or ion-nanostructure interactions for the future construction of small ion-focusing elements. Our section belongs to the Division of Atomic Physics. The other unit of the Division is the Section of Electron Spectroscopy and Materials Sciences. There are traditionally good connections and a strong collaboration between the groups of the two sections in many fields. From the very beginning of our research work in atomic collisions, external collaborations were of vital importance for us. We regularly organize international workshops in the field of fast ion-atom collisions and related small conferences in Debrecen from 1981. Recently, we organized the Conference on Radiation Damage in Biomolecular Systems (RADAM 2008, Debrecen), and coorganized the Conference on Elementary Processes in Atomic Systems (CEPAS 2008, Cluj). We have access to several large scale facilities in Europe within the framework of formal and informal collaborations. The next themes are in this article: Forward electron emission from energetic atomic collisions; Positron-atom collisions; Photon-atom interactions; Interference effects in electron

  13. International human cooperation in Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Shiba, Koreyuki; Kaieda, Keisuke; Makuuchi, Keizo; Takada, Kazuo; Nomura, Masayuki

    1997-01-01

    Rearing of talented persons in the area of nuclear energy is one of the important works in Japan Atomic Energy Research Institute. In this report, the present situations and future schedules of international human cooperation in this area wsere summarized. First, the recent activities of International Nuclear Technology Center were outlined in respect of international human cooperation. A study and training course which was started in cooperation with JICA and IAEA from the middle of eighties and the international nuclear safety seminar aiming at advancing the nuclear safety level of the world are now being put into practice. In addition, a study and training for rearing talented persons was started from 1996 to improve the nuclear safety level of the neighbouring countries. The activities of the nuclear research interchange system by Science and Technology Agency established in 1985 and Bilateral Co-operation Agreement from 1984 were explained and also various difficulties in the international cooperation were pointed out. (M.N.)

  14. Proceedings of the seventeenth Symposium of Atomic Energy Research, Vol. II

    Energy Technology Data Exchange (ETDEWEB)

    Vidovszky, Istvan [Kiadja az MTA KFKI Atomenergia Kutatointezet, H-1525 Budapest 114, P.O.Box 49 (Hungary)

    2007-11-15

    The present volume contains 83 papers, presented on the eleventh Symposium of Atomic Energy Research, held in Yalta, Ukraine, 23-29 September 2007. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Fuel Management, Spectral and Core Calculations, Core Surveillance and Monitoring, CFD Analysis, Reactor Dynamics Thermal Hydraulics and Safety Analysis, Physical Problems of Spent Fuel Decommissioning and Radwaste, Actinide Transmutation and Spent Fuel Disposal, Core Operation, Experiments and Code Validation, History of TIC/AER - according to the presentation sequence on the Symposium (Author); Next corporations organizations: People's Deputy, Chairman of the Verkhovna Rada Subcommittee on Nuclear Policy and Nuclear Safety of Ukraine (Ukraine); Ministry for Fuel and Energy of Ukraine (Ukraine); Mintopenergo (Ukraine); Rosenergoatom (RU); Nuclear Safety Department of South-Ukraine NPP (Ukraine); State Nuclear Regulatory Committee of Ukraine (Ukraine); Energorisk, Ltd. (Ukraine); HmNPP (Ukraine); Khmelnitskaja NPP (Ukraine); Zaporizhzhya NPP, Energodar (Ukraine); Odessa National Polytechnic University, Odessa (Ukraine); NSC Kharkov Institute of Physics and Technology, Kharkov (Ukraine); Subsidiary 'Analytical Research Bureau for Nuclear Safety' (Ukraine); National nuclear power generating company 'Energoatom', Detached subdivision, Chornobyl NPP (Ukraine); JSC 'SNIIP-SYSTEMATOM' (RU); Moscow State Power-Engineering Institute, State University, Moscow (RU); Innovative company SNIIP Atom, LTD (RU); Budapest University of Technology and Economics, Institute of Nuclear Techniques, Budapest XI, Mueegyetem rkp. 9, 1111 (Hungary); Forschungszentrum Dresden- Rossendorf, Institute of Safety Research, P.O.B. 51 01 019, D-01314 Dresden (Germany)

  15. Atomic and Molecular Data Activities for Fusion Research in JAEA

    International Nuclear Information System (INIS)

    Nakano, T.

    2011-01-01

    The Japan Atomic Energy Agency (JAEA) has been producing, collecting and compiling cross-section data for atomic and molecular collisions and spectral data relevant to fusion research. In this talk, an overview of our activities since the last meeting in September 2009 will be presented. The state selective charge transfer cross-section data of Be 4+ , C 4+ and C 6+ by collision with H(n=2) in the collision energy range between 62 eV/amu and 6.2 keV/amu have been calculated with a molecular-bases close-coupling method. The calculated charge transfer data of C 4+ was implemented in a collisional-radiative model code for C 3+ , and it is shown that in some cases the charge transfer from C 4+ to H(n=2) populates predominantly C 3+ (n = 6, 7). The cross-section data of dissociative recombination and excitation of HD + , D 2+ , DT + , T 2+ 3 HeH + and 4 HeH + were produced by theoretical calculation. The principal quantum number of dissociated H atom isotopes was also given. The analytical expressions for the cross-section data for 26 processes of He-collision systems were produced in order to facilitate practical use of the data. The compiled data are in preparation for the web site at the URL of http://www-jt60.naka.jaea.go.jp/engish/JEAMDL/. The chemical sputtering yield data of CFC materials with hydrogen isotope collisions have been compiled. The ionization rate of W 44+ and the radiative and the dielectronic recombination rates of W 45+ were calculated with FAC. The ratio of these rates was compared with experimentally measured ratio of W 45+ density to W 44+ density in JT-60U, showing that the calculated ratio of the recombination ratio of W 45+ to the ionization rate of W 44+ is accurate within the experimental uncertainty (∼ 30%). The atomic and molecular data activities in JAEA are pursued in collaboration with Japanese universities, and other department of JAEA. (author)

  16. A vital legacy: Biological and environmental research in the atomic age

    Energy Technology Data Exchange (ETDEWEB)

    Vaughan, D. [ed.

    1997-09-01

    This booklet presents a summary of the five decades of biological and environmental research in the atomic age. It commemorates the contributions to science and society during these decades and concludes with a view to the years ahead. The Contents includes `Safety First: in the Shadow of a New Technology; A Healthy Citizenry: Gifts of the New Era; and Environmental Concerns: From Meteorology to Ecology`. The conclusion is titled `An Enduring Mandate: Looking to the Future`.

  17. A Vital Legacy: Biological and Environmental Research in the Atomic Age

    Science.gov (United States)

    1997-09-01

    This booklet presents a summary of the five decades of biological and environmental research in the atomic age. It commemorates the contributions to science and society during these decades and concludes with a view to the years ahead. The Contents includes Safety First: in the Shadow of a New Technology; A Healthy Citizenry: Gifts of the New Era; and Environmental Concerns: From Meteorology to Ecology. The conclusion is titled An Enduring Mandate: Looking to the Future.

  18. Atomic cluster collisions

    Science.gov (United States)

    Korol, Andrey V.; Solov'yov, Andrey

    2013-01-01

    Atomic cluster collisions are a field of rapidly emerging research interest by both experimentalists and theorists. The international symposium on atomic cluster collisions (ISSAC) is the premier forum to present cutting-edge research in this field. It was established in 2003 and the most recent conference was held in Berlin, Germany in July of 2011. This Topical Issue presents original research results from some of the participants, who attended this conference. This issues specifically focuses on two research areas, namely Clusters and Fullerenes in External Fields and Nanoscale Insights in Radiation Biodamage.

  19. Induction skull melting facility: an advanced system for electromagnetic processing of metals and alloys

    International Nuclear Information System (INIS)

    Sugilal, G.; Agarwal, K.

    2017-01-01

    Induction Skull Melting (ISM) is an advanced technology for processing highly refractory and extremely reactive metals and their alloys to produce ultra-high purity products. In ISM, the metallic charge is melted in a water-cooled, copper crucible. The crucible is segmented so that the magnetic field can penetrate into the metallic charge to be melted. By virtue of the strong electromagnetic stirring, the ISM technology can also be used to homogenize alloys of metals, which are difficult to be combined uniformly in composition due to large difference in specific gravity. In view of various important applications in frontier areas of material research, development and production, Bhabha Atomic Research Centre developed the ISM technology indigenously

  20. Progress report for 1978-79, Technical Physics Division

    International Nuclear Information System (INIS)

    Gopalaraman, C.P.; Deshpande, R.Y.

    1980-01-01

    The research and development activities of the Technical Physics Division (TPD) of the Bhabha Atomic Research Centre, Bombay, during the calendar years 1978 and 1979 are reported. The TPD's major areas of work are electronics instrumentation, crystal technology, mass spectrometers, cryogenic equipment and vacuum equipment. Some of the major achievements are: (1) fabrication of various electronic instruments and components for the pulsed nuclear magnetic resonance spectrometers, (2) growth of large size NaI(Tl) and Ge crystals, (3) growth of CsI, KDP and arsenic selenide crystals, (4) fabrication of quadrupole mass filters and (5) fabrication of mass spectrometers for gas analysis and D/H analysis in water samples. (M.G.B.)

  1. Report on R and D activities of Health Physics Division 1990-1993

    International Nuclear Information System (INIS)

    Raju, A.; Narayanan, K.K.; Sharma, R.C.

    1994-01-01

    This report is a compilation of various R and D programmes undertaken, continued and/or completed by Health Physics Division of Bhabha Atomic Research Centre (BARC) during the period 1990-1993. The findings and results of several types of investigations on topics ranging from environmental studies, radiation dosimetry - internal and external, operational health physics, site evaluation studies, micrometeorology, instrumentation and techniques and industrial hygiene and safety are presented in the form of abstracts. The abstracts have been arranged subject wise. References to the scientific papers and technical reports published or presented have been included. Also included are extracts from IAEA Research Agreements and theses submitted for the award of M.Sc./Ph.D. degrees by research by the staff members of the Division. (author). appendix

  2. Current and anticipated uses of thermal hydraulic codes at the Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Akimoto, Hajime; Kukita; Ohnuki, Akira

    1997-01-01

    The Japan Atomic Energy Research Institute (JAERI) is conducting several research programs related to thermal-hydraulic and neutronic behavior of light water reactors (LWRs). These include LWR safety research projects, which are conducted in accordance with the Nuclear Safety Commission's research plan, and reactor engineering projects for the development of innovative reactor designs or core/fuel designs. Thermal-hydraulic and neutronic codes are used for various purposes including experimental analysis, nuclear power plant (NPP) safety analysis, and design assessment

  3. Proceedings of the eighth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    Vidovszky, I.

    1998-10-01

    The present volume contains 53 papers, presented on the eighth Symposium of Atomic Energy Research, held in Bystrice nad Perstejnem, Czech Republic, 21-25 September 1998. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation Methods, Core Design, Operation and Fuel Management, Core Monitoring, Surveillance and Testing, Neutron Kinetics and reactor Dynamics Methods, Safety Issues and Analysis, Rod Drop Reactivity Measurements, Criticality safety, Spent Fuel and Decommissioning, - according to the presentation sequence on the Symposium. At the end of the volume a list of the participants and an alphabetical author index is given as well

  4. Progress in atomic spectroscopy

    International Nuclear Information System (INIS)

    Beyer, H.J.; Kleinpoppen, H.

    1984-01-01

    This book presents reviews by leading experts in the field covering areas of research at the forefront of atomic spectroscopy. Topics considered include the k ordering of atomic structure, multiconfiguration Hartree-Fock calculations for complex atoms, new methods in high-resolution laser spectroscopy, resonance ionization spectroscopy (inert atom detection), trapped ion spectroscopy, high-magnetic-field atomic physics, the effects of magnetic and electric fields on highly excited atoms, x rays from superheavy collision systems, recoil ion spectroscopy with heavy ions, investigations of superheavy quasi-atoms via spectroscopy of electron rays and positrons, impact ionization by fast projectiles, and amplitudes and state parameters from ion- and atom-atom excitation processes

  5. Status of electrical safety in Indira Gandhi Centre for Atomic Research

    International Nuclear Information System (INIS)

    Kandasamy, S.; Karthikeyan, S.V.; Senthilkumar, B.; Shunmugam, U.; Kannan, S.E.

    1999-01-01

    Electrical Systems in Indira Gandhi Centre for Atomic Research (IGCAR), comprising of facilities such as Fast Breeder Test Reactor (FBTR) and various Research and Development laboratories form a complex network providing practically uninterrupted power supply to all the facilities meeting their energy demands. The safety record of the Centre for the past 25 years has been very good and the number of electrical accidents in the Centre has been less. This paper brings out the status of the electrical safety in IGCAR and indicates the steps to be taken to improve the safety culture. It also utilizes the measure to be provided for improving the electrical safety in the works executed by contractors

  6. Advanced electrolytic cascade process for tritium recovery from irradiated heavy water moderator (Preprint No. PD-15)

    International Nuclear Information System (INIS)

    Ragunathan, P.; Mitra, S.K.; Jain, D.K.; Nayar, M.G.; Ramani, M.P.S.

    1989-04-01

    The paper briefly describes a design study of an electrolytic cascade process plant for enrichment and recovery of tritium from irradiated heavy water moderators from Rajasthan Atomic Power Station Reactors. In direct multistage electrolysis process, tritiated heavy water from the reactor units is fed to the electrolytic cell modules arranged in the form of a cascade where it is enriched and decomposed into O 2 gas stream and D 2 /DT gas stream. The direct electrolysis of tritiated heavy water allows tritium to be concentrated in the aqueous phase. Several stages are used to achieve the necessary enrichment. The cascade plant incorporates the advanced electrolyser technology developed in Bhabha Atomic Research Centre (Bombay) using porous nickel electrodes, capable o f high current density operation at reduced energy consumption for electrolysis. (author). 3 tabs

  7. Progress report [of] Technical Physics and Prototype Engineering Division, April 1982 - March 1984

    International Nuclear Information System (INIS)

    Ramamurthi, S.S.; Chaudhry, Ramesh

    1985-01-01

    The work done by the Technical Physics and Prototype Engineering Division of the Bhabha Atomic Research Centre (BARC) at Bombay during the period from April 1982 to March 1984 is described in the form of summaries. The main thrust of the work of the Division is towards designing, developing, fabricating and if needed, producing on a large scale various instruments, equipment and components required for the programmes of the BARC and the Department of Atomic Energy. The summaries describing the work are grouped under the headings:(1) vacuum, (2) surface analysis, (3) mass spectrometry, (4) electronics, (5) cryogenics, (6) crystals and detectors, (7) glass technology and devices, and (8) optoelectronics. A list of publications of the staff-members of the Division during the report period is given. (M.G.B.)

  8. Heliborne time domain electromagnetic system

    International Nuclear Information System (INIS)

    Bhattacharya, S.

    2009-01-01

    Atomic Minerals Directorate (AMD), are using heliborne and ground time domain electromagnetic (TDEM) system for the exploration of deep seated unconformity type uranium deposits. Uranium has been explored in various parts of the world like Athabasca basin using time domain electromagnetic system. AMD has identified some areas in India where such deposits are available. Apart from uranium exploration, the TDEM systems are used for the exploration of deep seated minerals like diamonds. Bhabha Atomic Research Centre (BARC) is involved in the indigenous design of the heliborne time domain system since this system is useful for DAE and also it has a scope of wide application. In this paper we discuss about the principle of time domain electromagnetic systems, their capabilities and the development and problems of such system for various other mineral exploration. (author)

  9. New sources of cold atoms for atomic clocks

    International Nuclear Information System (INIS)

    Aucouturier, E.

    1997-01-01

    The purpose of this doctoral work is the realisation of new sources of cold cesium atoms that could be useful for the conception of a compact and high-performance atomic clock. It is based on experiences of atomic physics using light induced atomic manipulation. We present here the experiences of radiative cooling of atoms that have been realised at the Laboratoire de l'Horloge Atomique from 1993 to 1996. Firstly, we applied the techniques of radiative cooling and trapping of atoms in order to create a three-dimensional magneto-optical trap. For this first experience, we developed high quality laser sources, that were used for other experiments. We imagined a new configuration of trapping (two-dimensional magneto-optical trap) that was the basis for a cold atom source. This design gives the atoms a possibility to escape towards one particular direction. Then, we have extracted the atoms from this anisotropic trap in order to create a continuous beam of cold atoms. We have applied three methods of extraction. Firstly, the launching of atoms was performed by reducing the intensity of one of the cooling laser beams in the desired launching direction. Secondly, a frequency detuning between the two laser laser beams produced the launching of atoms by a so-called 'moving molasses'. The third method consisted in applying a static magnetic field that induced the launching of atoms in the direction of this magnetic field. At the same time, another research on cold atoms was initiated at the I.H.A. It consisted in cooling a large volume of atoms from a cell, using an isotropic light. This offers an interesting alternative to the traditional optical molasses. (author)

  10. Role of BRIT in promoting radiation processing technology in India

    International Nuclear Information System (INIS)

    Bandi, L.N.

    2014-01-01

    Some of the major applications of radiation processing include: the sterilization of products such as medical devices to kill bacteria or in the case of food, hygienize the product; the treatment of export bulk commodities such as tropical fruits to extend shelf life by slowing the ripening process and inhibiting sprouting and to kill quarantine pests such as fruit flies. Radiation processing is a value addition process. Taking note of these benefits, Department of Atomic Energy, Government of India constituted Board of Radiation and Isotope Technology (BRIT) in March 1989 by carving it out from Bhabha Atomic Research Centre, Mumbai. The mandate given to BRIT was to extend commercial applications of radioisotopes and radiation in the areas of Health, Agriculture, Industry and Research without losing sight of societal obligations. So far Department of Atomic Energy has set up three demonstration plants, namely, Isomed, RPP, Vashi and Krushak for high, medium and low dose applications of radiation respectively. The safe and business like operation of these facilities amply demonstrated the embedded safety and commercial viability of this technology

  11. Science Hall of Atomic Energy in Research Reactor Institute, Kyoto University

    International Nuclear Information System (INIS)

    Hayashi, Takeo

    1979-01-01

    The Science Hall of Atomic Energy was built as a subsidiary facility of the Research Reactor Institute, Kyoto University. The purpose of this facility is to accept outside demands concerning the application of the research reactor. The building is a two story building, and has the floor area of 901.47 m 2 . There are an exhibition room, a library, and a big lecture room. In the exhibition room, models of the Kyoto University Research Reactor and the Kyoto University Critical Assembly are placed. Various pictures concerning the application of the reactor are on the wall. In the library, people from outside of the Institute can use various books on science. Books for boys and girls are also stocked and used for public use. At the lecture room, various kinds of meeting can be held. (Kato, T.)

  12. Review of research institute library activity through the contributed papers. The case of the Japan Atomic Energy Research Institute Library

    International Nuclear Information System (INIS)

    Ikeda, Kiyoshi; Habara, Tadashi; Ishikawa, Masashi; Itabashi, Keizo; Yonezawa, Minoru

    2007-03-01

    The Japan Atomic Energy Research Institute (JAERI) Library had contributed 312 papers through the library activities in half-century. We made the bibliography of these papers as well as categorized them into general', 'library functions', 'management and promotion of research results' and 'international exchange of information' and explained them under the four categories. A subject index, an author index of these papers and chronology of JAERI library activities were also compiled for reference. (author)

  13. News UK public libraries offer walk-in access to research Atoms for Peace? The Atomic Weapons Establishment and UK universities Students present their research to academics: CERN@school Science in a suitcase: Marvin and Milo visit Ethiopia Inspiring telescopes A day for everyone teaching physics 2014 Forthcoming Events

    Science.gov (United States)

    2014-05-01

    UK public libraries offer walk-in access to research Atoms for Peace? The Atomic Weapons Establishment and UK universities Students present their research to academics: CERN@school Science in a suitcase: Marvin and Milo visit Ethiopia Inspiring telescopes A day for everyone teaching physics 2014 Forthcoming Events

  14. Current and anticipated uses of thermal hydraulic codes at the Japan Atomic Energy Research Institute

    Energy Technology Data Exchange (ETDEWEB)

    Akimoto, Hajime; Kukita; Ohnuki, Akira [Japan Atomic Energy Research Institute, Ibaraki (Japan)

    1997-07-01

    The Japan Atomic Energy Research Institute (JAERI) is conducting several research programs related to thermal-hydraulic and neutronic behavior of light water reactors (LWRs). These include LWR safety research projects, which are conducted in accordance with the Nuclear Safety Commission`s research plan, and reactor engineering projects for the development of innovative reactor designs or core/fuel designs. Thermal-hydraulic and neutronic codes are used for various purposes including experimental analysis, nuclear power plant (NPP) safety analysis, and design assessment.

  15. Report of results of joint research using facilities in Japan Atomic Energy Research Institute in fiscal year 1987

    International Nuclear Information System (INIS)

    1988-06-01

    The total themes of the joint research in fiscal year 1987 were 127. These are shown being classified into the general joint research in Tokai and Takasaki, neutron diffraction research and cooperative research. The general joint research is the standard utilization form using research reactors JRR-2 and JRR-4, Co-60 gamma irradiation facilities in Tokai and Takasaki, an electron beam irradiation facility in Takasaki, an electron beam linear accelator and hot laboratories, which are opened for common utilization by Japan Atomic Energy Research Institute. The cooperative research is carried out by concluding research cooperation contracts between the researchers of universities and JAERI. In the general joint research, radioactivation analysis, radiation chemistry, irradiation effect, neutron diffraction and so on are the main themes, and in the cooperative research, reactor technology, reactor materials, nuclear physics measurement and others are the main themes. The total number of visitors was 2629 man-day, and decreased due to the stop of JRR-2. Also other activities are reported. The abstracts of respective reports are collected in this book. (Kako, I.)

  16. Design of atomic energy information network system

    International Nuclear Information System (INIS)

    Kim, Y. T.; Lee, E. J.; Han, K. W.; Lee, H. C.; Chang, J. H.

    2004-01-01

    As the 21 st century is expected to induce a Knowledge based society, responding to this kind of change on our own initiative could be achieved by establishing networks among atomic energy agencies with the Atomic Energy Portal Site in a pivotal role. Thus, enabling the knowledge information from each agency to be easily shared and utilized. Furthermore, it can contribute to further researches by providing accumulated knowledge in the atomic energy, such as research output and past achievements, and by avoiding the repetition of researches on the same subjects. It could also provide remote educational data to researchers and industrial experts in atomic energy, as well as atomic energy information for general public consistently, so that we can promote our confidence in atomic energy

  17. Educational, research and implementation activities in the Department of Atomic Physics at Plovdiv University

    International Nuclear Information System (INIS)

    Balabanov, N.; Antonov, A.; Hristov, H.

    2004-01-01

    The Department of Atomic Physics at Plovdiv University has 40 year long experience in educating students in Atomic and Subatomic Physics. We aim at making the knowledge gained in nuclear physics part of the culture of our students. At the core of our educational activities lies our long and successful experience in studying the characteristics of atomic nuclei. In cooperation with JINR-Dubna we have studied the nuclei of approximately 40 percent of the periodic table elements. These studies also serve as a basis for the diverse implementation activities of the Department, which have an impressive geographical spread. In recent years our research has been focusing more specifically on radio-ecological issues with the valuable support of the Nuclear Regulatory Agency (NRA). Future more intense support on behalf of NRA's together with more dynamic links with other specialized units, such as the Kozloduy NPP in the first place, would considerably contribute to optimizing the effect of our overall activity. (authors)

  18. Design and performance of a high intensity copper atom beam source nozzle for use in inelastic atom--atom collision experiments

    International Nuclear Information System (INIS)

    Santavicca, D.A.

    1975-01-01

    The research was aimed at developing a neutral copper atom beam source which could be used to study the collision cross sections for electronic excitation of neutral copper atoms in collision with neutral argon atoms. Of particular interest is the excitation from the ground state to the two upper laser levels at 3.80 and 3.82 electron volts

  19. Thoughts on Documentation of Atomic Power Technology

    International Nuclear Information System (INIS)

    Oh, Jeong Hoon; Lee, Hee Won; Song, Ki Chan

    2012-01-01

    Korean Atomic Energy Research Institute (KAERI) has accumulated a number of technology development and research outcomes, including its representative achievements such as atomic energy technology independence and the first export of atomic energy system, since it was established in 1959. With its long history of over 50 years, KAERI has produced a large amount of information and explicit knowledge such as experiment data, database, design data, report, instructions, and operation data at each stage of its research and development process as it has performed various researches since its establishment. Also, a lot of tacit knowledge has been produced both knowingly and not unknowingly based on the experience of researchers who have participated in many projects. However, in the research environment in Korea where they focus overly on the output, tacit knowledge has not been managed properly compared to explicit knowledge. This tacit knowledge is as an important asset as explicit knowledge for an effective research and development. Moreover, as the first generation of atomic energy independence and research manpower retire, their accumulated experience and knowledge are in danger of disappearing. Therefore, in this study, we sought how to take a whole view and to document atomic energy technology researched and developed by KAERI, from the background to achievement of each field of the technology. Comprehensive and systematic documentation of atomic energy technology will establish a comprehensive management system of national atomic energy technology record to make a foundation of technical advancement and development of atomic energy technology. Also, it is expected to be used as an important knowledge and information resource of atomic energy knowledge management system

  20. Atomic force microscopy. A new method for atom identification and manipulation

    International Nuclear Information System (INIS)

    Abe, Masayuki; Sugimoto, Yoshiaki; Morita, Seizo

    2007-01-01

    Frequency modulation atomic force microscopy (FM-AFM) is a scanning probe technique that detects the interaction forces between the outermost atom of a sharp tip and the atoms at a surface to image the sample surface. It is expected that the FM-AFM can cover the research field which scanning tunneling microscopy does not provide. In this article, we would introduce FM-AFM experiments applied to site-specific force measurements and atom manipulation, including how to solve the problems to achieve precise FM-AFM measurements. (author)

  1. Atomic Energy Act 1953-1966

    International Nuclear Information System (INIS)

    1970-01-01

    The Atomic Energy Act 1953-1966 establishes the Australian Atomic Energy Commission and lays down its powers, duties, rules of procedure and financing. The members of the Commission are appointed by the Governor-General. It is responsible, inter alia, for all activities covering uranium research, mining and trading as well as for atomic energy development and nuclear plant construction and operation. Its duties also include training of scientific research workers and collection and dissemination of information on atomic energy. For purposes of security, the Act further-more prescribes sanctions in relation to unauthorised acquisition or communication of information on this subject. Finally, the Act repeals the Atomic Energy (Control of Materials) Act 1946 and 1952. (NEA) [fr

  2. Laser and Plasma Technology Division annual report 1995

    International Nuclear Information System (INIS)

    Venkatramani, N.

    1996-01-01

    This report describes the activity of the Laser and Plasma Technology Division of Bhabha Atomic Research Centre, Mumbai during the period 1995. This division is engaged in the research and development of high power beams namely lasers, plasma and electron beams which are characterized by high power density. This division has strived to establish indigenous capability to cater to the requirements of the Department of Atomic Energy. The broad program objectives of the division are (1) development and technology readiness studies of laser, plasma and electron beam devices; (2) studies on related physical phenomena with a view to gain better understanding of the devices and (3) improvements in technology and exploration of new areas. This report has been compiled from individual reports of various groups/sections with marginal editing. At the end of each section; a list of publications by the staff members in the field indicated by the title of the section is given. refs., figs., tabs

  3. Proceedings of the tenth Symposium of Atomic Energy Research. V. II

    Energy Technology Data Exchange (ETDEWEB)

    Vidovszky, I [ed.

    2000-10-01

    The present volume contains 80 papers, presented on the tenth Symposium of Atomic Energy Research, held in Moscow, Russia, 18-22 September 2000. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Core Operation, Fuel Management and Design, Spectral and Core Calculation Methods, Spent Fuel, Transmutations, Core Monitoring, Surveillance and Testing, Neutron Kinetics and reactor Dynamics Methods, Safety Issues and Analysis, Rod Drop Reactivity Measurements, according to the presentation sequence on the Symposium.

  4. Proceedings of the tenth Symposium of Atomic Energy Research. V. II

    International Nuclear Information System (INIS)

    Vidovszky, I.

    2000-10-01

    The present volume contains 80 papers, presented on the tenth Symposium of Atomic Energy Research, held in Moscow, Russia, 18-22 September 2000. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Core Operation, Fuel Management and Design, Spectral and Core Calculation Methods, Spent Fuel, Transmutations, Core Monitoring, Surveillance and Testing, Neutron Kinetics and reactor Dynamics Methods, Safety Issues and Analysis, Rod Drop Reactivity Measurements, according to the presentation sequence on the Symposium

  5. Proceedings of the Tenth Symposium of Atomic Energy Research. V. I

    International Nuclear Information System (INIS)

    Vidovszky, I.

    2000-10-01

    The present volume contains 80 papers, presented on the tenth Symposium of Atomic Energy Research, held in Moscow, Russia, 18-22 October 2000. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Core Operation, Fuel Management and Design, Spectral and Core Calculation Methods, Spent Fuel, Transmutations, Core Monitoring, Surveillance and Testing, Neutron Kinetics and reactor Dynamics Methods, Safety Issues and Analysis, Rod Drop Reactivity Measurements, according to the presentation sequence on the Symposium

  6. Electronic structure of atoms: atomic spectroscopy information system

    International Nuclear Information System (INIS)

    Kazakov, V V; Kazakov, V G; Kovalev, V S; Meshkov, O I; Yatsenko, A S

    2017-01-01

    The article presents a Russian atomic spectroscopy, information system electronic structure of atoms (IS ESA) (http://grotrian.nsu.ru), and describes its main features and options to support research and training. The database contains over 234 000 records, great attention paid to experimental data and uniform filling of the database for all atomic numbers Z, including classified levels and transitions of rare earth and transuranic elements and their ions. Original means of visualization of scientific data in the form of spectrograms and Grotrian diagrams have been proposed. Presentation of spectral data in the form of interactive color charts facilitates understanding and analysis of properties of atomic systems. The use of the spectral data of the IS ESA together with its functionality is effective for solving various scientific problems and training of specialists. (paper)

  7. Electronic structure of atoms: atomic spectroscopy information system

    Science.gov (United States)

    Kazakov, V. V.; Kazakov, V. G.; Kovalev, V. S.; Meshkov, O. I.; Yatsenko, A. S.

    2017-10-01

    The article presents a Russian atomic spectroscopy, information system electronic structure of atoms (IS ESA) (http://grotrian.nsu.ru), and describes its main features and options to support research and training. The database contains over 234 000 records, great attention paid to experimental data and uniform filling of the database for all atomic numbers Z, including classified levels and transitions of rare earth and transuranic elements and their ions. Original means of visualization of scientific data in the form of spectrograms and Grotrian diagrams have been proposed. Presentation of spectral data in the form of interactive color charts facilitates understanding and analysis of properties of atomic systems. The use of the spectral data of the IS ESA together with its functionality is effective for solving various scientific problems and training of specialists.

  8. 9th International Workshop on Application of Lasers and Storage Devices in Atomic Nuclei Research: Recent Achievements and Future Prospects

    CERN Document Server

    Kowalska, Magdalena; LASER 2013

    2014-01-01

    Since the beginning, the Workshop has been devoted to the application of lasers in atomic nuclear research. (Details can be found in the proceedings of the previous 6th to 8th workshops: Hyperfine Interactions: volumes 164 (2004), 171 (2006) and 196, (2009).) The subject of the previous VIII Workshop (LASER 2009) was broadened, combining two key technologies of modern research: lasers and ion storage techniques. This combination has opened the event to the new research opportunities for investigations in atomic and nuclear physics, for detection of quantum effects in particle ensembles as well as for precision spectroscopy especially for testing fundamental interactions and symmetries. Due to the increased interest in the previous edition, we decided to retain its title and topics for the 2013 edition stressing on atomic properties of superheavy elements and methods of their investigation.

  9. Research on condensed matter and atomic physics, using major experimental facilities and devices: Physics, chemistry, biology. Reports on results. Vol. 1. 1. Atomic and molecular physics. 2. Physics and chemistry of surfaces and interfaces

    International Nuclear Information System (INIS)

    1993-01-01

    This report in three volumes substantiates the contents of the programme survey published in September 1989. The progress reports cover the following research areas: Vol. I, (1). Atomic and molecular physics - free atoms, molecules, macromolecules, clusters, matrix-isolated atoms and molecules. (2) Physics and chemistry of surfaces and interfaces - epitaxy, surface structure, adsorption, electrical, magnetic, and optical properties, thin films, synthetic layer structure. Vol. II, (3). Solid-state physics, and materials science -structural research, lattice dynamics, magnetic structure and dynamics, electronic states; load; spin and pulse density fluctuations; diffusion and internal motion, defects, unordered systems and liquids. Vol. III, (4). Chemistry - bonding and structure, kinetics and reaction mechanisms, polymer research, analysis and synthesis. (5). Biology, - structure and dynamics of biological macromolecules, membrane and cell biology. (6) Development of methods and instruments - neutron sources, synchrotron sources, special accelerators, research with interlinked systems and devices. (orig.) [de

  10. Atomic inner-shell physics

    International Nuclear Information System (INIS)

    Crasemann, B.

    1985-01-01

    This book discusses: relativistic and quantum electrodynamic effects on atomic inner shells; relativistic calculation of atomic transition probabilities; many-body effects in energetic atomic transitions; Auger Electron spectrometry of core levels of atoms; experimental evaluation of inner-vacancy level energies for comparison with theory; mechanisms for energy shifts of atomic K-X rays; atomic physics research with synchrotron radiation; investigations of inner-shell states by the electron energy-loss technique at high resolution; coherence effects in electron emission by atoms; inelastic X-ray scattering including resonance phenomena; Rayleigh scattering: elastic photon scattering by bound electrons; electron-atom bremsstrahlung; X-ray and bremsstrahlung production in nuclear reactions; positron production in heavy-ion collisions, and X-ray processes in heavy-ion collisions

  11. The Atomic Energy Control Board

    International Nuclear Information System (INIS)

    Doern, G.B.

    1976-01-01

    This study describes and assesses the regulatory and administrative processes and procedures of the Atomic Energy Control Board, the AECB. The Atomic Energy Control Act authorized the AECB to control atomic energy materials and equipment in the national interest and to participate in measures for the international control of atomic energy. The AECB is authorized to make regulations to control atomic energy materials and equipment and to make grants in support of atomic energy research. (author)

  12. Reports of the research results for the peaceful uses of atomic energy; 1975 edition

    International Nuclear Information System (INIS)

    1975-01-01

    Research works on peaceful uses of atomic energy performed in national institutions in fiscal 1973 (April to March) are described in individual short reports: nuclear fusion, foods irradiation, countermeasures for cancer, agriculture/forestry/fishery, medicine, mining and manufacturing, nuclear power, construction and civil engineering, activation analysis, and prevention of radiation injuries. (Mori, K.)

  13. Annual report of the Japan Atomic Energy Research Institute for fiscal 2000

    International Nuclear Information System (INIS)

    2001-01-01

    The Japan Atomic Energy Research Institute (JAERI) promotes some researches such as neutron science research, light quantum/synchrotron radiation science research, radiation application research, science research, advanced basic research, and so on, based on nuclear energy R and D and contributing to general development on scientific technology, along the Long-term program on research, development and application of nuclear energy' established on June, 1994, as a general organization on nuclear energy R and D in Japan. And, as an R and D on advanced energy system bringing breakthrough on nuclear energy technology, JAERI also promotes research on future type energy system, R and D on nuclear fusion, and trial research on high temperature engineering. Furthermore, JAERI progresses research on safety and health physics, as occupying both fields of general nuclear energy science and nuclear energy. In addition, by carrying out not only interdisciplinary cooperation in Japan but also versatile international one, various research assisting business and effective R and D are promoted. Here were described in details in fiscal year 2000, on 6 items on the neutron science research (SR), 13 items on light quantum/radiation light SR, 13 items on radiation application SR, 6 items on matter SR, 3 items on environment SR, 19 items on advanced basic SR, and so on. (G.K.)

  14. Proceedings of the ninth Symposium of Atomic Energy Research

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-10-01

    The present volume contains 57 papers. Most of the papers were presented on the ninth Symposium of Atomic Energy Research, held in Demanovska Dolina, Slovakia, 4-6 October 1999. The rest of the papers (intended to be presented but not presented due to difficulties) is included based on the decision of the organizers. The papers are in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation Methods, Core Operation and Fuel Management, Core Monitoring, Surveillance and Testing, Safety Issues, Neutron Kinetics and Reactor Dynamics, Reactivity Evaluation, High Subcriticality, Critical Safety and Spent Fuel and Spent Fuel Transmutations - according to the presentation sequence on the Symposium. At the end of the volume an alphabetical author index is given.

  15. Proceedings of the ninth Symposium of Atomic Energy Research

    International Nuclear Information System (INIS)

    1999-10-01

    The present volume contains 57 papers. Most of the papers were presented on the ninth Symposium of Atomic Energy Research, held in Demanovska Dolina, Slovakia, 4-6 October 1999. The rest of the papers (intended to be presented but not presented due to difficulties) is included based on the decision of the organizers. The papers are in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Spectral and Core Calculation Methods, Core Operation and Fuel Management, Core Monitoring, Surveillance and Testing, Safety Issues, Neutron Kinetics and Reactor Dynamics, Reactivity Evaluation, High Subcriticality, Critical Safety and Spent Fuel and Spent Fuel Transmutations - according to the presentation sequence on the Symposium. At the end of the volume an alphabetical author index is given

  16. Annual report of the Japan Atomic Energy Research Institute for fiscal 1999

    International Nuclear Information System (INIS)

    2000-01-01

    The Japan Atomic Energy Research Institute (JAERI) has promoted some researches for contributing to general development of science and technology based on nuclear research and development such as neutron science research, light quantum and radiation beam science research, radiation application research, high level computational science research, advanced basic research, and so forth, along the 'Long-term plan on nuclear research, development and application' established on June, 1994. And, researches and developments on leading energy system bringing breakthrough of nuclear technology such as study on future type energy system, research and development of nuclear fusion, and high temperature engineering test research. In addition, as a research containing both fields of general nuclear science and nuclear energy, safety research and health and physics research were also promoted. Furthermore, together with not only inland co-operation with industry, university and institute, but also promotion of diverse international co-operation, effective research and development has been carried out by various research assistant business. Here were described in details on researches on neutron science, light quantum and radiation beam science, radiation application, material science, environmental science, advanced basic research, high level computational science, nuclear fusion, future type energy system, high-temperature engineering test, safety, and relative research, and on operation and safety management, relative technology and outsider operation, and construction arrangement. (G.K.)

  17. Success story of radiation based induced mutagenesis in groundnut (Arachis hypogaea L.)

    International Nuclear Information System (INIS)

    Badigannavar, Anand M.; Mondal, Suvendu; D'Souza, Stanislaus F.

    2009-01-01

    Genetic improvement of groundnut through sustained mutation and recombination breeding at Bhabha Atomic Research Centre, Mumbai resulted in the development of 260 new mutants and breeding lines having unique traits and desirable attributes. Among them, 14 Trombay groundnut (TG) varieties with superior agronomic features were released for commercial cultivation for different states across the country. Most of these varieties have significantly contributed towards the enhancement of groundnut production and productivity in the country. Majority of these varieties were also utilized as parents in the national and state groundnut breeding programmes. Additionally induced TG mutants are the source material for understanding the genetic and molecular basis of different traits. (author)

  18. Acoustic emission monitoring of leakage through seal-plug in PHWR systems

    Energy Technology Data Exchange (ETDEWEB)

    Jha, S K; Badgujar, B P; Goswami, G L [Bhabha Atomic Research Centre, Bombay (India). Atomic Fuels Div.; Patel, R J; Bhattacharya, S; Agrawal, R G [Bhabha Atomic Research Centre, Mumbai (India). Refuelling Technology Division

    1994-12-31

    Acoustic Emission (AE) technique is being developed as an in-service inspection tool for monitoring the leakage through seal-plugs in Pressurised Heavy Water Reactors (PHWRs). Time as well as frequency domain analysis have been utilised during the experiment carried out at Bhabha Atomic Research Centre (BARC) using test set up simulating the pressure and temperature conditions. The work involved were to determine the temperature profile on end-fitting, effect of pressure and temperature on leakage etc. This paper discusses various relationships like signal-level vs. pressure, frequency spectrum of signal, signal-level vs. leakage based on the above experimental work. (author). 4 refs., 6 figs.

  19. Qt based control system software for Low Energy Accelerator Facility

    International Nuclear Information System (INIS)

    Basu, A.; Singh, S.; Nagraju, S.B.V.; Gupta, S.; Singh, P.

    2012-01-01

    Qt based control system software for Low Energy Accelerating Facility (LEAF) is operational at Bhabha Atomic Research Centre (BARC), Trombay, Mumbai. LEAF is a 50 keV negative ion electrostatic accelerator based on SNICS ion source. Control system uses Nokia Trolltech's QT 4.x API for control system software. Ni 6008 USB based multifunction cards has been used for control and read back field equipments such as power supplies, pumps, valves etc. Control system architecture is designed to be client server. Qt is chosen for its excellent GUI capability and platform independent nature. Control system follows client server architecture. The paper will describe the control system. (author)

  20. Modern control room for AHWR

    International Nuclear Information System (INIS)

    Verghese, Clement C.; Joseph, Jose; Biswas, B.B.; Patil, R.K.

    2005-01-01

    Advanced Heavy Water Reactor (AHWR) is a next generation nuclear power plant being developed by Bhabha Atomic Research Centre. A modern control room has been conceived for operation and monitoring of the plant in tune with the advanced features of the reactor. A state of the art C and I architecture based on extensive use of computers and networking has been conceived for this plant. This architecture enables the implementation of a fully computerised operator friendly control room with soft HMIs. Features of the modern control room and control room and concept of soft HMI based operator interfaces have been described in the paper. (author)

  1. Nucleonic density gauging -- an application in a chemical industry

    International Nuclear Information System (INIS)

    Rao, S.S.; Kirti; Jain, S.K.

    1979-01-01

    Hardly any conventional technique is available for on-line bulk density measurement. A typical problem of measurement of bulk density of detergent powder during production has been tackled. The nucleonic bulk density gauge developed by the Bhabha Atomic Research Centre, Bombay, is briefly explained. Problems of source selection, collimation of radiation, detection system, etc are described. Adequate compensation for environmental temperature changes was achieved. Tests on stability, etc were carried out in the laboratory and the plant. The experience in actual use is mentioned. With some modifications the system developed can be extended for density measurement and control of liquids, slurries, etc. Improvement in output linearity is also possible. (auth.)

  2. Mutation breeding in pulse crops for rural development in India

    International Nuclear Information System (INIS)

    Reddy, K.S.; Souframanien, J.; Dhanasekar, P.; Dhole, V.J.

    2009-01-01

    Pulse crops, among the legumes form an important source of the dietary protein of the predominantly vegetarian population of India. The biotic and abiotic stresses are the major deterrents in improving the yield and productivity of pulses. Mutation breeding plays a significant role in the development of biotic and abiotic stresses resistant varieties leading to higher production and overall remuneration of the farming community. The biotic stress resistant varieties also play an important role in the ecological balance, by reducing the dependency on pesticides. Bhabha Atomic Research Centre, Trombay has been instrumental in the development of 15 high yielding, disease resistant mutant varieties in 4 pulse crops. (author)

  3. Indian programme on molten salt cooled nuclear reactors

    International Nuclear Information System (INIS)

    DuIera, I.V.; Vijayan, P.K.; Sinha, R.K.

    2013-01-01

    Bhabha Atomic Research Centre (BARC) is developing a 600 MWth pebble bed high temperature reactor, cooled by natural circulation of molten fluoride salts and is capable of supplying process heat at 1000 ℃ to facilitate hydrogen production by splitting water. BARC has also initiated studies for a reactor concept in which salts of molten fluoride fuel and coolant in fluid form, flows through the reactor core of graphite moderator, resulting in nuclear fission within the molten salt. For thorium fuel cycle, this concept is very attractive, since the fuel can be re-processed on-line, enabling it to be an efficient neutron breeder. (author)

  4. Annual report of the Japan Atomic Energy Research Institute, for fiscal 1987

    International Nuclear Information System (INIS)

    1988-01-01

    Fiscal year 1987 fell on the year to revise the long term program every five years, and the new long term program was decided, and the course that JAERI takes hereafter was shown. In this new program, the safety research and the upgrading research in the development from LWRs to FBRs, the promotion of the research and development of high temperature engineering, nuclear fusion, the utilization of radiation and nuclear-powered ships, the basic research and the development of base technology for opening up atomic energy frontier, and the expansion of international cooperation were emphasized as the role of JAERI. The research on engineering safety, the development of high temperature gas-cooled reactors, the research and development of nuclear fusion, and the research and development of nuclear-powered ships are reported. In the fields of the related research, basic research and the utilization of radiation, the research on the reactor physics of FBRs and thermal neutron reactors, the research on nuclear fuel and reactor materials, the research on reactor dismantling techniques, the development of tritium production technology and many others were advanced. The operation for utilizing JRR 2, JRR 4 and JMTR was carried out, and JRR 3 was under reconstruction. (K.I.)

  5. 2010 Atomic & Molecular Interactions Gordon Research Conference

    Energy Technology Data Exchange (ETDEWEB)

    Todd Martinez

    2010-07-23

    The Atomic and Molecular Interactions Gordon Conferences is justifiably recognized for its broad scope, touching on areas ranging from fundamental gas phase and gas-condensed matter collision dynamics, to laser-molecule interactions, photophysics, and unimolecular decay processes. The meeting has traditionally involved scientists engaged in fundamental research in gas and condensed phases and those who apply these concepts to systems of practical chemical and physical interest. A key tradition in this meeting is the strong mixing of theory and experiment throughout. The program for 2010 conference continues these traditions. At the 2010 AMI GRC, there will be talks in 5 broadly defined and partially overlapping areas of intermolecular interactions and chemical dynamics: (1) Photoionization and Photoelectron Dynamics; (2) Quantum Control and Molecules in Strong Fields; (3) Photochemical Dynamics; (4) Complex Molecules and Condensed Phases; and (5) Clusters and Reaction Dynamics. These areas encompass many of the most productive and exciting areas of chemical physics, including both reactive and nonreactive processes, intermolecular and intramolecular energy transfer, and photodissociation and unimolecular processes. Gas phase dynamics, van der Waals and cluster studies, laser-matter interactions and multiple potential energy surface phenomena will all be discussed.

  6. Reports of the research results for the peaceful uses of atomic energy

    International Nuclear Information System (INIS)

    1978-01-01

    Results of the research works done mainly in fiscal 1976 (from April to March) in national institutes across the country under the governmental expenses and subsidies are given in individual brief summaries. Areas covered are : nuclear fusion, safety (engineering, and environmental radioactivity), food irradiation, cancer countermeasures, agriculture and forestry (soil fertilization, quality improvement, crops protection, and breedings improvement), medicine (diagnosis/therapy, pharmaceutics, environmental hygiene, and biological pathology), mining and manufacturing (radiation chemistry, radiation measurements, etc.), nuclear power (reactor materials, and nuclear-powered ship), construction and civil engineering, activation analysis, and injuries prevention. As an appendix, lists of publications in the Japan Atomic Energy Research Institute and the Power Reactor and Nuclear Fuel Development Corporation are given. (Mori, K.)

  7. Reports of the research results for the peaceful uses of atomic energy; 1976 edition

    International Nuclear Information System (INIS)

    1976-01-01

    Research works on peaceful uses of atomic energy performed in national institutions in fiscal 1974 (April to March) are described in individual short reports: nuclear fusion, nuclear safety, foods irradiation, countermeasures for cancer, agriculture/forestry/fishery, medicine, mining and manufacturing, nuclear power, construction and civil engineering, activation analysis, and prevention of radiation injuries. (Mori, K.)

  8. Review of ageing management of NPPs - Experience feed back form research reactors

    International Nuclear Information System (INIS)

    Bhatnagar, A.; Gujarathi, R.I.; Chowdhury, R.; Tikku, A.C.

    2002-01-01

    Ageing of Systems, Structures and Components (SSCs) is a natural process and sets in along with the construction and commissioning of plants in spite of best design provisions and maintenance practices. Plant operators and maintainers need to plan and take measures against ageing degradation of SSCs to maintain the high standards of safety. As safety is a continuously evolving phenomenon, incorporating safety upgrades from time to time and carrying out ageing management towards improved safety for research and power reactors is very important. Cirus research reactor which was commissioned in 1960 and Tarapur Atomic power station which was commissioned in 1969 are two such examples of older generation nuclear plants in India which are presently undergoing extensive refurbishment towards implementation of ageing management programme. The 40 MWt Cirus Research Reactor located at the Bhabha Atomic Research Centre, Mumbai, is a vertical closed tank type reactor with natural uranium as fuel, demineralised light water as primary coolant, heavy water as moderator and graphite as reflector. The reflector and the thermal shields are cooled by reactor building ventilation system. Sea water is used as secondary coolant. The reactor vessel is made of aluminium and has 199 lattice tubes rolled into top and bottom tube sheets. It has an expansion joint between the top tube sheet and the shell to allow for thermal expansion. The reactor operated very efficiently till early nineties after which the ageing degradation of SSCs started affecting the reactor operation. Plant availability factor showed a declining trend due to frequent breakdown of equipment. Detailed performance review was carried out for various equipment and a list of equipment that needed replacement was prepared. Equipment, for which availability of spares was becoming difficult due to obsolescence, were also included in this list. Detailed ageing studies were then taken up on various SSCs. The SSCs were

  9. Regulatory measures for occupational health monitoring in BARC facilities

    International Nuclear Information System (INIS)

    Rajdeep; Chattopadhyay, S.

    2017-01-01

    Bhabha Atomic Research Centre (BARC) is the premier organization actively engaged in the research and developmental activities related to nuclear science and technology for the benefit of society and the nation. BARC has various facilities like nuclear fuel fabrication facilities, research reactors, spent fuel storage facilities, nuclear fuel re-cycling facilities, radioactive waste management facilities, machining workshops and various Physics, Chemistry and Biological laboratories. In BARC, aspects related to Occupational Safety and Health (OSH) are given paramount importance. The issues related OSH are subjected to multi-tier review process. BARC Safety Council (BSC) is the apex committee in the three-tier safety and security review framework of BARC. BSC functions as regulatory body for BARC facilities. BSC is responsible for occupational safety and health of employees in BARC facilities

  10. Design considerations for high current regulated DC power supplies with reference to 600 kW variable DC power supply

    International Nuclear Information System (INIS)

    Ushakumari; Garud, A.N.; Nadkarni, S.S.

    1980-01-01

    High current regulated dc power supplies find increasing applications in industry and research. The power rating of these supplies vary from few killowatts to megawatts. The general requirements of these supplies for various applications and the techniques used to achieve the desired performance are presented. The design and selection of various circuit blocks namely the rectifier transformer, multiphase rectifier arrangement, SCR paralleling and current sensing techniques, are discussed in detail for a 600 killowatt current controlled supply developed in the Bhabha Atomic Research Centre, Bombay, and used for the thermal studies of reactor components. The power supply incorporates paralleled phase controlled thyristors with a closed loop feedback circuitary to achieve a current stability of 0.1% and smooth output variation from 10 to 100%. (auth.)

  11. Progress report of Technical Physics Division: April 1980 - March 1982

    International Nuclear Information System (INIS)

    Chaudhry, Ramesh; Vijendran, P.

    1983-01-01

    Activities, with an individual summary of each, of the Technical Physics Division (TPD) of the Bhabha Atomic Research Centre (BARC), Bombay are reported for the period April 1980 - March 1982. The major thrust of the TPD's work has been in: (i) design and fabrication of instruments, devices and equipment and (ii) development of techniques in the frontline research and technology areas like vacuum science, surface analysis, cryogenics and crystal growing. The Division also provided custombuilt electronics equipment, vacuum systems and glass components and devices to the various Divisions of BARC and other units of the DAE. Training and manpower development activities and technology transfer activities are also reported. Lists of seminars, colloquia, publications during the period of the report are given. (M.G.B.)

  12. Young Investigator Proposal, Research Area 7.4 Reactive Chemical Systems: Multifunctional, Bimetallic Nanomaterials Prepared by Atomic Layer Electroless Deposition

    Science.gov (United States)

    2017-09-30

    Report: Young Investigator Proposal, Research Area 7.4 Reactive Chemical Systems: Multifunctional, Bimetallic Nanomaterials Prepared by Atomic Layer ...Chemical Systems: Multifunctional, Bimetallic Nanomaterials Prepared by Atomic Layer Electroless Deposition Report Term: 0-Other Email: pcappillino... Layer Electroless Deposition (ALED, Figure 1) is the ability to tune growth mechanism, hence growth morphology, by altering conditions. In this

  13. Atoms stories; Histoire d`atomes

    Energy Technology Data Exchange (ETDEWEB)

    Radvanyi, P; Bordry, M [Centre National de la Recherche Scientifique (CNRS), 75 - Paris (France)

    1988-12-31

    Physicists from different countries told each evening during one learning week, to an audience of young people, some great discoveries in evoking the difficulties and problems to which the researchers were confronted. From Antiquity to a more recent history, it is a succession of atoms stories. (N.C.)

  14. Tritium research and technology facilities for fusion inside the Bruyeres-le-Chatel Research Center of the French Atomic Energy Commission

    International Nuclear Information System (INIS)

    Hircq, B.

    1990-01-01

    Because of a large tritium experience in the Bruyeres-le-Chatel Research Center (Atomic Energy Commission-FRANCE), new activities could be undertaken in 1986 inside the European Fusion Technology Program, especially tritium studies within the frame work of the Next European Torus. After presenting the general tritium research program which concerns the Torus Exhaust Gas Processing (deuterium-tritium purification and storage) and involved materials (weldability of tritium-helium containing steels and corrosion of steels by tritiated water), major obtained results are given before describing the associated equipments. (orig.)

  15. Proceedings of the seventeenth Symposium of Atomic Energy Research, Vol. I

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2007-10-01

    The present volume contains 83 papers, presented on the eleventh Symposium of Atomic Energy Research, held in Yalta, Ukraine, 23-29 September 2007. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Fuel Management, Spectral and Core Calculations, Core Surveillance and Monitoring, CFD Analysis, Reactor Dynamics Thermal Hydraulics and Safety Analysis, Physical Problems of Spent Fuel Decommissioning and Radwaste, Actinide Transmutation and Spent Fuel Disposal, Core Operation, Experiments and Code Validation, History of TIC/AER - according to the presentation sequence on the Symposium (Author)

  16. Proceedings of the seventeenth Symposium of Atomic Energy Research, Vol. II

    International Nuclear Information System (INIS)

    Vidovszky, Istvan

    2007-11-01

    The present volume contains 83 papers, presented on the eleventh Symposium of Atomic Energy Research, held in Yalta, Ukraine, 23-29 September 2007. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Fuel Management, Spectral and Core Calculations, Core Surveillance and Monitoring, CFD Analysis, Reactor Dynamics Thermal Hydraulics and Safety Analysis, Physical Problems of Spent Fuel Decommissioning and Radwaste, Actinide Transmutation and Spent Fuel Disposal, Core Operation, Experiments and Code Validation, History of TIC/AER - according to the presentation sequence on the Symposium (Author)

  17. Time for atomic and molecular data bases is now (an overview of data management research at LLL)

    International Nuclear Information System (INIS)

    Hampel, V.E.; Henry, E.A.

    1977-01-01

    Two numerical data bases of atomic and molecular (A and M) data required for laser-induced fusion studies were created. One file contains primarily atomic energy levels and atomic transition data released by Charlotte E. Moore in NBS publications. The second file is based on the spectroscopic constants for more than 1000 molecular levels of approximately 160 heteronuclear diatomic molecules prepared by S. N. Suchard. Additional data bases are contemplated in support of the accelerating research activities in these fields. The present paucity of authenticated, computer-readable A and M data is not unlike that observed two decades ago in nuclear fission research. At that time, emphasis was also given to the accurate measurement of physical parameters and to reaction rates which eventually led to the ENDF/B series of evaluated neutron cross sections. Today, powerful computers have a more dominant role in modeling and predicting the results of promising experiments. Their effective use, however, depends more than ever before upon the availability of comprehensive and accurate files of A and M data. At the Lawrence Livermore Laboratory (LLL), these requirements are accentuated by the heavy reliance on computers. Also, trends are presently becoming apparent among users of the national computer network for Magnetic Fusion Energy, with its center at LLL, to coalesce organization-dependent data files into central data bases containing bibliographic information and numerical data as a common resource. The Data Management Research Project is collaborating with the National Bureau of Standards (NBS/NSRDS) to be able to respond to the emerging requirements. This should contribute to a ''Public Well'' of atomic and molecular data, unencumbered by legal or monetary constraints. 14 figures

  18. Atomic Energy Commission Act, 2000 (Act 588)

    International Nuclear Information System (INIS)

    2000-01-01

    Act 588 of the Republic of Ghana entitled, Atomic Energy Commission Act, 2000, amends and consolidates the Atomic Energy Commission Act, 204 of 1963 relating to the establishment of the Atomic Energy Commission. Act 588 makes provision for the Ghana Atomic Energy Commission to establish more institutes for the purpose of research in furtherance of its functions and also promote the commercialization of its research and development results. (E.A.A.)

  19. Progress report (1980-1982)

    International Nuclear Information System (INIS)

    Patel, R.P.; Prithvi Raj

    1983-01-01

    The research and development (R and D) activities of the Chemistry Division of the Bhabha Atomic Research Centre, Bombay, during the period 1980-1982 are reported in the form of summaries. Basic research activities are being carried out in the areas of inorganic and physical chemistry, radiation and photochemistry, and materials science. Applied research and development work done during the period include chemical treatment for plugging leaks, materials development, studies in radiation and photochemistry, analytical studies, development of biomedical devices and other instruments. Three research projects, namely, advanced research in dynamics of chemical reaction, radiation and photochemical research using electron accelerator and laser, and development of special organic and inorganic materials have been taken up. It is planned to make available in the next two years facilities such as FT NMR, nano and pico second laser kinetic spectrometry, crossed molecular beam apparatus and nano second pulsed electron acceleration. (M.G.B.)

  20. PREFACE: 11th International Workshop on Positron and Positronium Chemistry (PPC-11)

    Science.gov (United States)

    Pujari, P. K.; Sudarshan, K.; Dutta, D.

    2015-06-01

    The International Workshop on Positron and Positronium Chemistry (PPC) is a prestigious triennial conference series with a rich history. The 11th meeting in the series (PPC-11) was held at Cidade de Goa, Goa, India during 9-14, November, 2014. It was organized by Bhabha Atomic Research Centre (BARC), Mumbai. The co-organizers were Saha Institute of Nuclear Physics (SINP), Kolkata, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam and Indian Association of Nuclear Chemists and Allied Scientists (IANCAS), Mumbai. PPC-11 attracted participants both from academic institutions and industries. About 120 participants from 20 countries representing all continents participated in the conference. The conference continued the tradition of excellence in terms of quality of presentations and discussions. There were 33 plenary and invited talks, 39 oral presentations and 40 posters. The conference stood true to its multidisciplinary tag with papers presented in the fields of fundamentals of positron and positronium chemistry, applications in polymers, porous materials, metals/alloys, studies in liquids, biological applications as well as developments in theory and experimental techniques. The enthusiastic participation of senior researchers and young students made the scientific program a grand success. In order to encourage the student participants (twenty) and promote excellence, a committee of senior members evaluated their presentations and the top three contributions were awarded. The positron and positronium community paid homage to the memory of late Profs. J. Kristiak and A.T. Stewart. A brief sketch of their life and work was presented by Profs. Jan Kuriplach and Toshio Hyodo, respectively. All the papers published in these proceedings have been peer reviewed by the participants of PPC-11. Editors thank all the reviewers for sparing their valuable time and helping us in bringing out the proceedings with 43 contributed articles in the scheduled time. We are

  1. Long-term atomic energy research, development and utilization program

    International Nuclear Information System (INIS)

    1980-01-01

    This is the revised version of the last long-range program (June, 1972), and covers the measures and plans for promoting the research, development and utilization of nuclear power in some in some ten years ahead. The basic policy lines include the assurance of peaceful use of atomic energy, safety assurence and public support, independence and international cooperation and the planned implementation of nuclear research and development projects. The target scale of nuclear power development is estimated at 33 million kilowatts by fiscal 1985 and 60 million kilowatts by fiscal 1990, respectively. The improvement and standardization of light water reactors are to be further carried on till fiscal 1980 and after. Sodium-cooled reactors, which use the oxide fuel based on the mixture of plutonium and uranium, will be developed. A prototype reactor of about 300,000 kilowatt electric capacity will reach criticality in the second half of 1980's. The research and development of the advanced thermal reactors, for which plutonium and depleted uranium are used, will be encouraged. Multipurpose high-temperature gas-cooled reactors are also to be developed. The measures for establishing the nuclear fuel cycle including the procurement of natural and enriched uranium, the reprocessing of spent fuel, the use of plutonium and the treatment and disposal of radioactive wastes are described. Nuclear fusion, nuclear ships, the use of radiation, safety studies, fundamental studies and the training of scientists and technicians are stipulated, respectively. The promotion of nuclear research and development projects is explained in detail. (Okada, K.)

  2. Division of atomic physics

    International Nuclear Information System (INIS)

    Kroell, S.

    1994-01-01

    The Division of Atomic Physics, Lund Institute of Technology (LTH), is responsible for the basic physics teaching in all subjects at LTH and for specialized teaching in Optics, Atomic Physics, Atomic and Molecular Spectroscopy and Laser Physics. The Division has research activities in basic and applied optical spectroscopy, to a large extent based on lasers. It is also part of the Physics Department, Lund University, where it forms one of eight divisions. Since the beginning of 1980 the research activities of our division have been centred around the use of lasers. The activities during the period 1991-1992 is described in this progress reports

  3. Modern atomic physics

    CERN Document Server

    Natarajan, Vasant

    2015-01-01

    Much of our understanding of physics in the last 30-plus years has come from research on atoms, photons, and their interactions. Collecting information previously scattered throughout the literature, Modern Atomic Physics provides students with one unified guide to contemporary developments in the field. After reviewing metrology and preliminary material, the text explains core areas of atomic physics. Important topics discussed include the spontaneous emission of radiation, stimulated transitions and the properties of gas, the physics and applications of resonance fluorescence, coherence, cooling and trapping of charged and neutral particles, and atomic beam magnetic resonance experiments. Covering standards, a different way of looking at a photon, stimulated radiation, and frequency combs, the appendices avoid jargon and use historical notes and personal anecdotes to make the topics accessible to non-atomic physics students. Written by a leader in atomic and optical physics, this text gives a state-of-the...

  4. Safety management procedures and practices at Indira Gandhi Centre for Atomic Research

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez, P.; Lee, S.M.; Kapoor, R.P.; Raghunath, V.M.; Karthikeyan, S.V. [Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102 (India)]. E-mail: kapoor@igcar.ernet.in

    2004-07-01

    The Indira Gandhi Centre for Atomic Research (IGCAR) operates FBTR (Fast Breeder Test Reactor), KAMINI (neutron source reactor), radiometallurgical laboratory, radiochemical laboratory, reprocessing plant, industrial scale sodium loops, advanced research laboratories, workshops, etc. Codified safety management procedures with systematic surveillance are essential for safe and reliable operations and these are described under the classifications of radiation safety, industrial safety and reactor operations with special emphasis on the human factor. Health physics teams, independent of the plant facility, supervise the radioactive facilities of the centre. Industrial safety standards are maintained by another independent section. Safety management for the reactors include a clear organisational structure, adequate documentation, compulsory training and licencing, safe working methods taking into account human factors and review by independent safety authorities. (author)

  5. Safety management procedures and practices at Indira Gandhi Centre for Atomic Research

    International Nuclear Information System (INIS)

    Rodriguez, P.; Lee, S.M.; Kapoor, R.P.; Raghunath, V.M.; Karthikeyan, S.V.

    2004-01-01

    The Indira Gandhi Centre for Atomic Research (IGCAR) operates FBTR (Fast Breeder Test Reactor), KAMINI (neutron source reactor), radiometallurgical laboratory, radiochemical laboratory, reprocessing plant, industrial scale sodium loops, advanced research laboratories, workshops, etc. Codified safety management procedures with systematic surveillance are essential for safe and reliable operations and these are described under the classifications of radiation safety, industrial safety and reactor operations with special emphasis on the human factor. Health physics teams, independent of the plant facility, supervise the radioactive facilities of the centre. Industrial safety standards are maintained by another independent section. Safety management for the reactors include a clear organisational structure, adequate documentation, compulsory training and licencing, safe working methods taking into account human factors and review by independent safety authorities. (author)

  6. Research and development activities of the Neutron Physics Division for the period January 1979-December 1979

    International Nuclear Information System (INIS)

    Basu, T.K.; Vohra, Y.K.

    1980-01-01

    Research and Development (R and D) activities of the Neutron Physics Division of the Bhabha Atomic Research Centre, Bombay during the calendar year 1979 are reported in the form of individual summaries. The Division's R and D work covers the fields of reactor neutron physics, applied neutronics, fusion plasma pinches, materials physics, crystallography and seismology. Some of the highlights of these activities are: (1) the development of a criticality formula for PURNIMA-II, a BeO reflected 233 U-uranyl nitrate solution critical experiment, (2) commissioning of a 21 K3, 50 KV fast capacitor bank for experiments of high-density plasma focus devices, (3) the design of a bore-hole model to develop carbon-oxygen logging method for identifying the oil and water zones in sand-stone formations in the earth's sub-surface using neutrons from a 14 MeV neutron generator, (4) proposal of a theoretical model for the equation of state of high-density matter in the intermediate pressure (approximately 10-100 Megabar) region, (5) development of a quantitative relation between the crater dimensions and the mound kinetic energy imparted by the shock from an underground nuclear explosion, and (6) texture studies of uranium fuel element samples using neutron diffraction. Progress of work on PURNIMA-II experiment, fusion blanket neutronics experiment, monitoring of nuclear explosions and discriminating them from earthquakes using seismic and microbarographic data is also reported. (M.G.B.)

  7. Atomic and molecular manipulation

    CERN Document Server

    Mayne, Andrew J

    2011-01-01

    Work with individual atoms and molecules aims to demonstrate that miniaturized electronic, optical, magnetic, and mechanical devices can operate ultimately even at the level of a single atom or molecule. As such, atomic and molecular manipulation has played an emblematic role in the development of the field of nanoscience. New methods based on the use of the scanning tunnelling microscope (STM) have been developed to characterize and manipulate all the degrees of freedom of individual atoms and molecules with an unprecedented precision. In the meantime, new concepts have emerged to design molecules and substrates having specific optical, mechanical and electronic functions, thus opening the way to the fabrication of real nano-machines. Manipulation of individual atoms and molecules has also opened up completely new areas of research and knowledge, raising fundamental questions of "Optics at the atomic scale", "Mechanics at the atomic scale", Electronics at the atomic scale", "Quantum physics at the atomic sca...

  8. Annual report April 1974-March 1975 of the Gama Research Centre National Atomic Energy Agency

    International Nuclear Information System (INIS)

    1975-01-01

    Activities at the Gama Research Centre for the period of April 1974-March 1975, covering works at the Laboratory of Nuclear and Atomic Physics, at the Reactor Laboratory, at the Laboratory of Chemistry, and at the Laboratory of Process Technology, are described. The Center's personnel and financial accounts are also given. (RUW)

  9. Research on the Method of Noise Error Estimation of Atomic Clocks

    Science.gov (United States)

    Song, H. J.; Dong, S. W.; Li, W.; Zhang, J. H.; Jing, Y. J.

    2017-05-01

    The simulation methods of different noises of atomic clocks are given. The frequency flicker noise of atomic clock is studied by using the Markov process theory. The method for estimating the maximum interval error of the frequency white noise is studied by using the Wiener process theory. Based on the operation of 9 cesium atomic clocks in the time frequency reference laboratory of NTSC (National Time Service Center), the noise coefficients of the power-law spectrum model are estimated, and the simulations are carried out according to the noise models. Finally, the maximum interval error estimates of the frequency white noises generated by the 9 cesium atomic clocks have been acquired.

  10. Chemical oxygen-iodine laser with atomic iodine generated via fluorine atoms

    Czech Academy of Sciences Publication Activity Database

    Jirásek, Vít; Čenský, Miroslav; Špalek, Otomar; Kodymová, Jarmila; Picková, Irena; Jakubec, Ivo

    2008-01-01

    Roč. 345, č. 1 (2008), 14-22 ISSN 0301-0104 R&D Projects: GA ČR GA202/05/0359 Institutional research plan: CEZ:AV0Z10100523; CEZ:AV0Z40320502 Keywords : atomic iodine * atomic fluorine * chemical oxygen–iodine laser * COIL Subject RIV: BH - Optics, Masers, Lasers Impact factor: 1.961, year: 2008

  11. Atom beams split by gentle persuasion

    International Nuclear Information System (INIS)

    Pool, R.

    1994-01-01

    Two different research teams have taken a big step toward atom interferometry. They have succeeded in splitting atomic beams by using atoms in spin states that neither absorb nor reemit laser light. By proper adjustment of experimental conditions, atoms are changed from one spin state to another, without passing through the intermediary excited state. The atoms in essence absorb momentum from the laser photons, without absorption or emission of photons. The change in momentum deflects atoms in the proper spin state

  12. Atomic physics issues in fusion

    International Nuclear Information System (INIS)

    Post, D.E.

    1982-01-01

    Atomic physics issues have played a large role in controlled fusion research. A general introduction to the present role of atomic processes in both inertial and magnetic controlled fusion work is presented. (Auth.)

  13. Analytical chemistry in nuclear science and technology: a scientometric mapping

    International Nuclear Information System (INIS)

    Kademani, B.S.; Kumar, Anil; Kumar, Vijai

    2007-01-01

    This paper attempts to analyse quantitatively the growth and development of Analytical Chemistry research in Nuclear Science and Technology in terms of publication output as reflected in International Nuclear Information System (INIS) database (1970-2005). During 1970-2005 a total of 8224 papers were published. There were only seven papers published in 1970. Thereafter, a tremendous explosion of literature was observed in this area. The highest number of papers (636) were published in 1985. The average number of publications published per year was 228.44. United States topped the list with 1811 publications followed by USSR with 1688 publications, Germany with 777 publications, India with 730 publications and Hungary with 519 publications. Authorship and collaboration trend was towards multi-authored papers as 80.3 percent of the papers were collaborative is indicative of the multidisciplinary nature of research activity. The most prolific authors were: B. F. Myasoedov, AN SSSR Moscow Inst. Geokhimii I Analitisheskoi Khimii, Russian Federation with 84 publications, M. Sudersanan, Bhabha Atomic Research Centre, Mumbai, India with 67 publications, P.Vanura and V. Jedinakova Krizova both from Institute of Chemical Technology, Prague, Czech Republic with 54 publications each, S. Gangadharan, Bhabha Atomic Research Centre, Mumbai, India with 47 publications, V.M. Ivanova , M.V. Lomonosov Moscow State University, Russian Federation with 45 publications and Yu. A Zolotov Lomonosov Moscow State University, Russian Federation with 40 publications. The journals most preferred by the scientists for publication of papers were : Zhurnal Analiticheskoj Khimii with 713 papers, Journal of Radioanalytical and Nuclear Chemistry with 409 papers, Analytical Chemistry Washington with 364 papers, Fresenius' Journal of Analytical Chemistry with 324 papers, Indian Journal of Chemistry, Section A with 251 papers, and Journal of Analytical Chemistry of the USSR with 145 papers. The high

  14. TRIGA International - History of Training Research Isotope production General Atomics

    International Nuclear Information System (INIS)

    2008-01-01

    TRIGA conceived at GA in 1956 by a distinguished group of scientists including Edward Teller and Freeman Dyson. First TRIGA reactor Mk-1 was commissioned on 3 may 1958 at G.A. Characteristic feature of TRIGA reactors is inherent safety: Sitting can be confinement or conventional building. TRIGA reactors are the most prevalent in the world: 67 reactors in 24 countries. Steady state powers up to 14 MWt, pulsing up to 22,000 MWt. To enlarge the scope of its manufactured products, CERCA engaged in a Joint Venture with General Atomics, and in July 1995 a new Company was founded: TRIGA INTERNATIONAL SAS (50% GA, 50% CERCA; Head Office: Paris (France); Sales offices: GA San Diego (Ca, USA) and CERCA Lyon (France); Manufacturing plant: CERCA Romans. General Atomics ID: founded in 1955 at San Diego, California, by General Dynamics; status: Privately held corporation; owners: Neal and Linden Blue; business: High technology research, design, manufacturing, and production for industry and Government in the U.S. and overseas; locations: U.S., Germany, Japan, Australia, Thailand, Morocco; employees: 5,000. TRIGA's ID: CERCA is a subsidiary of AREVA, born in November 05, 1957. Activities: fuel manufacture for research reactor, equipment and components for high-energy physics, radioactive sources and reference sources; plants locations: Romans and Pierrelatte (France); total strength: 180. Since the last five years TRIGA has manufactured and delivered more than 800 fuel elements with a door to door service. TRIGA International has the experience to manufacture all types of TRIGA fuel: standard fuel elements, instrumented fuel elements, fuel followed control rods, geometry: 37.3 mm (1.47 in.), 35.8 mm (1.4 in), 13 mm (0.5 in), chemical Composition: U w% 8.5, 12, 20, 30 and 45 w/o, erbium and no erbium. TRIGA International is on INL's approved vendor list (ISO 9000/NQA) and is ready to meet any TRIGA fuel needs either in the US or worldwide

  15. The time for atomic and molecular data bases is now. An overview of data management research at LLL

    International Nuclear Information System (INIS)

    Hampel, V.E.; Henry, E.A.

    1977-01-01

    We have created two numerical data bases of atomic and molecular (A+M) data required for laser induced fusion studies. One file contains primarily atomic energy levels and atomic transition data released by Charlotte E. Moore in NBS publications. The second file is based on the spectroscopic constants for more than 1000 molecular levels of approximately 160 heteronuclear diatomic molecules prepared by S. N. Suchard. Additional data bases are contemplated in support of the accelerating research activities in these fields. The present paucity of authenticated, computer-readable A+M data is not unlike that observed two decades ago in nuclear fission research. At that time, emphasis was also given to the accurate measurement of physical parameters and to reaction rates which eventually led to the ENDF/B series of evaluated neutron cross sections. Today, powerful computers have a more dominant role in modeling and predicting the results of promising experiments. Their effective use, however, depends more than ever before upon the availability of comprehensive and accurate files of A+M data. At the Lawrence Livermore Laboratory (LLL), these requirements are accentuated by the heavy reliance on computers. Also, trends are presently becoming apparent among users of the national computer network for Magnetic Fusion Energy (MFE), with its center at LLL, to coalesce organization-dependent data files into central data bases containing bibliographic information and numerical data as a common resource. The Data Management Research Project (LLL/DMRP) is collaborating with the National Bureau of Standards (NBS/NSRDS) to be able to respond to the emerging requirements. This should contribute to a ''Public Well'' of atomic and molecular data, unencumbered by legal or monetary constraints. (author)

  16. Korea Atomic Energy Research Institute (KAERI) in the 21st century

    International Nuclear Information System (INIS)

    Chang, In Soon; Lee, Mun-Ki

    2001-01-01

    Abstract. KAERI (Korea Atomic Energy Research Institute), a national nuclear research institute in the Republic of Korea, celebrated its fortieth anniversary last April. It has played a key role in the Korean nuclear history such that it: initiated and promoted the peaceful uses of nuclear energy in the Republic of Korea; maintained nuclear expertise on whole spectrum of nuclear field through conducting nuclear R and D programs, operating nuclear research facilities, and training and educating specialized nuclear personnel; founded a cornerstone of Korean nuclear industry by participating in the establishment of a nuclear engineering company and a nuclear fuel company and localizing nuclear fuel and reactor technology; and contributed to nuclear safety regulation by incubating a specialized nuclear regulatory body. Recently, to concentrate on nuclear R and D on advanced technology, KAERI went through management reform such as: the transfer of nuclear engineering divisions responsible for NSSS design and nuclear fuel design to nuclear industry in 1996; and the downsizing of manpower in 1998. Currently KAERI is in the challenging stage in terms of its missions and manpower. In the coming 21st century, KAERI is required to maintain the current R and D momentum and also to conduct priority-based research requiring concentrated effort. (author)

  17. Spectroscopy Division progress report for Jan 1983 - Dec 1984

    International Nuclear Information System (INIS)

    Dixit, R.M.

    1985-01-01

    The Research and Development (R and D) activities of the Spectroscopy Division of the Bhabha Atomic Research Centre, Bombay, during the period from January 1983 to December 1984 are reported. The main thrust of the activities of the Division is directed towards meeting the spectrochemical analytical requirements of the nuclear energy programmes and the related R and D projects of the Department of Atomic Energy. These activities are described in the form of summaries grouped under the headings:(1) analyses by optical emission, X-ray fluorescence, X-ray excited optical luminescence and other techniques, (2) atomic, molecular and solid state spectroscopy, (3) optics and thin films, and (4) electronic instrumentation. Two feature articles which are included in the report bring out the salient features of X-ray absorption fine structure spectroscopy (EXFAS) and laser spectroscopic techniques for trace analysis and describe the Division's efforts in setting up facilities to carry out work in these emerging fields. Other activities of the Division are teaching trainees and guiding research leading to M.Sc. and Ph.D. degrees. A list of papers published in journals and papers presented at conferences, symposia etc. by the staff-members of the Division is given. A divisional staff chart is also given. (M.G.B.)

  18. Theoretical atomic physics

    CERN Document Server

    Friedrich, Harald

    2017-01-01

    This expanded and updated well-established textbook contains an advanced presentation of quantum mechanics adapted to the requirements of modern atomic physics. It includes topics of current interest such as semiclassical theory, chaos, atom optics and Bose-Einstein condensation in atomic gases. In order to facilitate the consolidation of the material covered, various problems are included, together with complete solutions. The emphasis on theory enables the reader to appreciate the fundamental assumptions underlying standard theoretical constructs and to embark on independent research projects. The fourth edition of Theoretical Atomic Physics contains an updated treatment of the sections involving scattering theory and near-threshold phenomena manifest in the behaviour of cold atoms (and molecules). Special attention is given to the quantization of weakly bound states just below the continuum threshold and to low-energy scattering and quantum reflection just above. Particular emphasis is laid on the fundamen...

  19. The Development of Open University New Generation Learning Model Using Research and Development for Atomic Physics Course PEFI4421

    Science.gov (United States)

    Prayekti

    2017-01-01

    This research was aimed at developing printed teaching materials of Atomic Physics PEFI4421 Course using Research and Development (R & D) model; which consisted of three major set of activities. The first set consisted of seven stages, the second set consisted of one stage, and the third set consisted of seven stages. This research study was…

  20. Calculation and Measurement of Low-Energy Radiative Moller Scattering

    Science.gov (United States)

    Epstein, Charles; DarkLight Collaboration

    2017-09-01

    A number of current nuclear physics experiments have come to rely on precise knowledge of electron-electron (Moller) and positron-electron (Bhabha) scattering. Some of these experiments, having lepton beams on targets containing atomic electrons, use these purely-QED processes as normalization. In other scenarios, with electron beams at low energy and very high intensity, Moller scattering and radiative Moller scattering have such enormous cross-sections that the backgrounds they produce must be understood. In this low-energy regime, the electron mass is also not negligible in the calculation of the cross section. This is important, for example, in the DarkLight experiment (100 MeV). As a result, we have developed a new event generator for the radiative Moller and Bhabha processes, with new calculations that keep all terms of the electron mass. The MIT High Voltage Research Laboratory provides us a unique opportunity to study this process experimentally and compare it with our work, at a low beam energy of 2.5 MeV where the effects of the electron mass are significant. We are preparing a dedicated apparatus consisting of a magnetic spectrometer in order to directly measure this process. An overview of the calculation and the status of the experiment will be presented.

  1. Gamma ray scanning as troubleshooting tool for unusual and large diameter refinery vacuum columns

    International Nuclear Information System (INIS)

    Sarkar, T.K.; Chawla, R.; Banik, S.; Chopra, S.J.; Singh, G.; Pant, H.J.; Sreeramakrishnan, P.; Dhar, D.C.; Pushpangathan, P.N.; Sharma, V.K.

    1997-01-01

    Gamma scanning of trayed and packed columns is widely used to obtain density profiles and identify on-line problems such as: damaged tray or packing, foaming, flooding, maldistribution, weeping and entrainment, etc. However, scanning of large diameter tray or packed columns requires expertise in handling high intensity gamma sources along with thorough understanding of distillation engineering. Engineers India Limited and the Bhabha Atomic Research Centre undertook scanning of two such large diameter (8.4 m and 7.4 m) trayed and packed refinery vacuum distillation columns and successfully diagnosed the problems and suggested remedial actions. Radiography testing of small diameter columns can be used to confirm gamma scanning results. One such example for ammonia separator column is given

  2. Folded tandem ion accelerator facility at BARC

    International Nuclear Information System (INIS)

    Agarwal, Arun; Padmakumar, Sapna; Subrahmanyam, N.B.V.; Singh, V.P.; Bhatt, J.P.; Ware, Shailaja V.; Pol, S.S; Basu, A.; Singh, S.K.; Krishnagopal, S.; Bhagwat, P.V.

    2017-01-01

    The 5.5 MV single stage Van de Graaff (VDG) accelerator was in continuous operation at Nuclear Physics Division (NPD), Bhabha Atomic Research Centre (BARC) since its inception in 1962. During 1993-96, VDG accelerator was converted to a Folded Tandem Ion Accelerator (FOTIA). The scientists and engineers of NPD, IADD (then a part of NPD) along with several other divisions of BARC joined hands together in designing, fabrication, installation and commissioning of the FOTIA for the maximum terminal voltage of 6 MV. After experiencing the first accelerated ion beam on the target from FOTIA during April 2000, different ion species were accelerated and tested. Now this accelerator FOTIA is in continuous use for different kind of experiments

  3. Upgraded national occupational dose registry system - implementation of Phase-II programme

    International Nuclear Information System (INIS)

    Sanaye, S.S.; Baburajan, Sujatha; Johnson, Seethal; Nalawade, S.K.; Tudu, S.C.; Khedekar, B.M.; Sapra, B.K.; Datta, D.

    2016-01-01

    National Occupational Dose Registry System (NODRS) of Bhabha Atomic Research Centre maintains and updates occupational dose data of all monitored radiation workers in the country. The registry was upgraded in 2008 by establishing networked NODRS system through which personnel monitoring labs at different nuclear installations were networked with main dose registry server using the departmental ANUNET and NPCNET facilities. This has facilitated online allotment of personal numbers, storing of biometric information as well as providing online dose information to respective Health Physics Units (HPUs). On the basis of operational experience of NODRS and its feedback from users, Phase-II program was designed, developed and implemented. The paper gives an overview of implementation of this program at various sites

  4. Beneficiation strategy for some low grade ores of strategic metals in India

    International Nuclear Information System (INIS)

    Krishna Rao, N.

    1997-01-01

    In developing indigenous resources of strategic metals, beneficiation strategy has a major role to play, particularly where the ores are of low tenor. Presently India imports most of its requirements of metals like tin, tungsten, molybdenum, nickel and cobalt. In all these cases important low grade resources occur in the country. Beneficiation strategy necessary for exploitation of these deposits are discussed based mainly on vast batch and semi plant scale data generated in the Ore Dressing Section of Bhabha Atomic Research Centre. Also discussed is the case of strategic metal uranium where, in certain cases pre-concentration by beneficiation has the potential to make it feasible the exploitation of otherwise difficult to process ore resources. (author)

  5. Nuclear activation analysis work at Analytical Chemistry Division: an overview

    International Nuclear Information System (INIS)

    Verma, R.; Swain, K.K.; Remya Devi, P.S.; Dalvi, Aditi A.; Ajith, Nicy; Ghosh, M.; Chowdhury, D.P.; Datta, J.; Dasgupta, S.

    2016-04-01

    Nuclear activation analysis using neutron and charged particles is used routinely for analysis and research at Analytical Chemistry Division (ACD), Bhabha Atomic Research Centre (BARC). Neutron activation analysis at ACD, BARC, Mumbai, India has been pursued since late fifties using Apsara, CIRUS, Dhruva and Critical facility Research reactors, 239 Pu-Be neutron source and neutron generator. Instrumental, Radiochemical, Chemical and Derivative neutron activation analysis approaches are adopted depending on the analyte and the matrix. Large sample neutron activation analysis as well as k 0 -based internal monostandard neutron activation analysis is also used. Charged particle activation analysis at ACD, Variable Energy Cyclotron Centre (VECC), Kolkata started in late eighties and is being used for industrial applications and research. Proton, alpha, deuteron and heavy ion beams from 224 cm room temperature Variable Energy Cyclotron are used for determination of trace elements, measurement of excitation function, thin layer activation and preparation of endohedral fullerenes encapsulated with radioactive isotopes. Analytical Chemistry Division regularly participates in Inter and Intra laboratory comparison exercises conducted by various organizations including International Atomic Energy Agency (IAEA) and the results invariably include values obtained by neutron activation analysis. (author)

  6. First Asian regional congress on radiation protection

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, S K [Bhabha Atomic Research Centre, Bombay (India). Library and Technical Information Section

    1975-12-01

    Due to the rapid progress in the development of nuclear energy and its applications in medicine, agriculture and industry, the potential danger to targe groups of population due to radiation hazards has increased. Thus, radiation protection has become an important aspects of industrial and public hygiene. The article reviews the deliberations of the First Asian Regional Congress on Radiation Protection which was held during 15-20 December 1974 at the Bhabha Atomic Research Centre. 190 papers were presented on the following broad subjects: (1) organization of radiation protection services on a countrywide scale and significant problems and experiences; (2) research and cooperation, mutual assistance, education and training; (3) personnel monitoring; (4) nuclear industry risks and benefits; (5) radiation protection legislation and (6) panel discussions and regional international cooperation in the field of radiation protection.

  7. Progress report for 1975-1977 of the Biochemistry and Food Technology Division

    International Nuclear Information System (INIS)

    1978-01-01

    Research and development work carried out during the period 1975-77 in the Biochemistry and Food Technology Division of the Bhabha Atomic Research Centre, is reported. In addition to the studies on macromolecular aspects of structure and function of chemical components e.g. proteins and enzymes of living systems and food microbiology, major studies relate to: (1) safe storage of wheat irradiated for disinfestation, (2) compositional changes in wheat exposed to high dose of radiation, (3) sprout inhibition of irradiated potatoes during storage under tropical conditions, (4) induction of phenylalanine ammonium lyase in irradiated potatoes, (5) preservation of mangoes and bananas by heat-radiation combination, (6) extension of shelf-life of fish by radurization, (7) wholesomeness of irradiated fish and (8) genetic toxicological evaluation of irradiated foods. (M.G.B.)

  8. Annual report of the Neutron Physics Section : period ending December 1976

    International Nuclear Information System (INIS)

    Joneja, O.P.; Ramanandham, M.

    1977-01-01

    Research activities of the Neutron Physics Section of the Bhabha Atomic Research Centre, Bombay, for the period July 1975 - December 1976 are reported. Work in the field of : (1) X-ray and neutron crystallography of molecules of biological interest, (2) phase transformations of various kinds and (3) reactor physics and applied neutron physics is being continued. Some of the highlights are : (1) TDC-312 computer controlled neutron diffractometer has been put into operation, (2) two critical configurations using U 233 -uranyl nitrate solution have been planned, (3) vapourisation, melting and other phenomena in rocks as a result of an underground nuclear explosion have been studied. In this connection, computer codes for the propagation of shock waves in rocks using numerical simulation techniques have been developed. (M.G.B.)

  9. Atom-by-atom assembly

    International Nuclear Information System (INIS)

    Hla, Saw Wai

    2014-01-01

    Atomic manipulation using a scanning tunneling microscope (STM) tip enables the construction of quantum structures on an atom-by-atom basis, as well as the investigation of the electronic and dynamical properties of individual atoms on a one-atom-at-a-time basis. An STM is not only an instrument that is used to ‘see’ individual atoms by means of imaging, but is also a tool that is used to ‘touch’ and ‘take’ the atoms, or to ‘hear’ their movements. Therefore, the STM can be considered as the ‘eyes’, ‘hands’ and ‘ears’ of the scientists, connecting our macroscopic world to the exciting atomic world. In this article, various STM atom manipulation schemes and their example applications are described. The future directions of atomic level assembly on surfaces using scanning probe tips are also discussed. (review article)

  10. Research Investigation Directed Toward Extending the Useful Range of the Electromagnetic Spectrum. [atomic spectra and electronic structure of alkali metals

    Science.gov (United States)

    Hartmann, S. R.; Happer, W.

    1974-01-01

    The report discusses completed and proposed research in atomic and molecular physics conducted at the Columbia Radiation Laboratory from July 1972 to June 1973. Central topics described include the atomic spectra and electronic structure of alkali metals and helium, molecular microwave spectroscopy, the resonance physics of photon echoes in some solid state systems (including Raman echoes, superradiance, and two photon absorption), and liquid helium superfluidity.

  11. Chemistry Division progress report for the period January 1, 1977 - December 31, 1980

    International Nuclear Information System (INIS)

    Moorthy, P.N.; Ramshesh, V.; Yakhmi, J.V.

    1981-01-01

    The research and development work of the Chemistry Division of the Bhabha Atomic Research Centre, Bombay, during the period 1977-1980 is reported in the form of individual summaries under the headings: basic research including radiation chemistry, photochemistry, kinetic and electrochemical studies, ion exchange and sorption behaviour, chemistry of metal complexes (in particular, of uranium complexes), radiation damage in solids, heterogeneous catalysts, studies in magnetism, physical properties, solid state studies, theoretical studies, reactor related programmes (including reactor chemistry, lubricants and sealants, surface studies, water chemistry), applied research and development (including materials development, purification and analytical techniques, apolied radiation chemistry etc.), and instrumentation. Work of service facilities such as workshop, analytical se services, and repair and maintenance of instruments is described. Lists of training programmes, staff publications and divisional seminars, are given. At the end a sectionwise list of staff members is also given. (M.G.B.)

  12. Atomic beams probe surface vibrations

    International Nuclear Information System (INIS)

    Robinson, A.L.

    1982-01-01

    In the last two years, surface scientist have begun trying to obtain the vibrational frequencies of surface atoms in both insulating and metallic crystals from beams of helium atoms. It is the inelastic scattering that researchers use to probe surface vibrations. Inelastic atomic beam scattering has only been used to obtain vibrational frequency spectra from clean surfaces. Several experiments using helium beams are cited. (SC)

  13. IAEA workshop on 'Atomic and molecular data for fusion energy research'. Summary report

    International Nuclear Information System (INIS)

    Clark, R.E.H.

    2004-05-01

    On September 8-12 a workshop on Atomic and Molecular (A+M) Data for Fusion Energy Research was hosted by the International Centre for Theoretical Physics in Trieste Italy. The workshop was attended by twelve students representing eleven Member States. A total of five lecturers, including four external to the Agency, made presentations to the workshop. All lecturers provided advance copies of the lecture materials and all provided written assignments for the students, to provide practical examples of applications of data issues to actual problems related to fusion energy research. All materials were collected on CDs, which were distributed to the students by the conclusion of the workshop. During the course of the workshop the students were given the opportunity to describe their backgrounds and research interests. The workshop did arouse interest in A+M processes related to fusion. The workshop was viewed as successful by the students. (author)

  14. Proceedings of the Fifth AASPP Workshop on Asian Nuclear Reaction Database Development

    International Nuclear Information System (INIS)

    Saxena, Alok

    2015-02-01

    The Fifth AASPP Workshop on Asian Nuclear Reaction Database Development was organized by Nuclear Data Physics Centre of India in cooperation with the IAEA and the Board of Research in Nuclear Sciences, Department of Atomic Energy from 22-24 Sept., 2014 at Bhabha Atomic Research Centre, Mumbai, India. Over seventy participants took part in the workshop representing India, Japan, Republic of Korea, Vietnam, Kazakhstan, Uzbekistan, Mongolia and a representative from the IAEA. The workshop covered the overview of nuclear data activities in different countries and covered the topics related to experiments performed using various facilities, the upcoming and existing accelerators and experimental facilities, EXFOR compilation activities, reactor sensitivity studies to nuclear data, criticality benchmarking studies, nuclear data requirement of nuclear power reactors, theoretical calculations using various codes, and covariances in nuclear data. About thirty five talks were delivered by participants from various countries on these topics. The concluding session had a panel discussion on possible future collaboration involving participants from different countries. The present report gives summary of each presentation. (author)

  15. Atomic theories

    CERN Document Server

    Loring, FH

    2014-01-01

    Summarising the most novel facts and theories which were coming into prominence at the time, particularly those which had not yet been incorporated into standard textbooks, this important work was first published in 1921. The subjects treated cover a wide range of research that was being conducted into the atom, and include Quantum Theory, the Bohr Theory, the Sommerfield extension of Bohr's work, the Octet Theory and Isotopes, as well as Ionisation Potentials and Solar Phenomena. Because much of the material of Atomic Theories lies on the boundary between experimentally verified fact and spec

  16. Plant maintenance and advanced reactors issue, 2008

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal [ed.

    2009-09-15

    The focus of the September-October issue is on plant maintenance and advanced reactors. Major articles/reports in this issue include: Technologies of national importance, by Tsutomu Ohkubo, Japan Atomic Energy Agency, Japan; Modeling and simulation advances brighten future nuclear power, by Hussein Khalil, Argonne National Laboratory, Energy and desalination projects, by Ratan Kumar Sinha, Bhabha Atomic Research Centre, India; A plant with simplified design, by John Higgins, GE Hitachi Nuclear Energy; A forward thinking design, by Ray Ganthner, AREVA; A passively safe design, by Ed Cummins, Westinghouse Electric Company; A market-ready design, by Ken Petrunik, Atomic Energy of Canada Limited, Canada; Generation IV Advanced Nuclear Energy Systems, by Jacques Bouchard, French Commissariat a l'Energie Atomique, France, and Ralph Bennett, Idaho National Laboratory; Innovative reactor designs, a report by IAEA, Vienna, Austria; Guidance for new vendors, by John Nakoski, U.S. Nuclear Regulatory Commission; Road map for future energy, by John Cleveland, International Atomic Energy Agency, Vienna, Austria; and, Vermont's largest source of electricity, by Tyler Lamberts, Entergy Nuclear Operations, Inc. The Industry Innovation article is titled Intelligent monitoring technology, by Chris Demars, Exelon Nuclear.

  17. The Effect of Vibration Characteristics on the Atomization Rate in a Micro-Tapered Aperture Atomizer

    Directory of Open Access Journals (Sweden)

    Qiufeng Yan

    2018-03-01

    Full Text Available Because little is known about the atomization theory of a micro-tapered aperture atomizer, we investigated the vibration characteristics of this type of atomizer. The atomization mechanism of a micro-tapered aperture atomizer was described, and the atomization rate equation was deduced. As observed via microscopy, the angle of the micro-tapered aperture changes with the applied voltage, which proved the existence of a dynamic cone angle. The forward and reverse atomization rates were measured at various voltages, and the influence of the micro-tapered aperture and its variation on the atomization rate was characterized. The resonance frequency of the piezoelectric vibrator was obtained using a laser vibrometer, and the atomization rates were measured at each resonance frequency. From experiments, we found that the atomization rates at the first five resonance frequencies increased as the working frequency increased. At the fifth resonance frequency (121.1 kHz, the atomization rate was maximized (0.561 mL/min, and at the sixth resonance frequency (148.3 kHz, the atomization rate decreased significantly (0.198 mL/min. The experimental results show that the vibration characteristics of the piezoelectric vibrator have a relatively strong impact on the atomization rate. This research is expected to contribute to the manufacture of micro-tapered aperture atomizers.

  18. The Effect of Vibration Characteristics on the Atomization Rate in a Micro-Tapered Aperture Atomizer.

    Science.gov (United States)

    Yan, Qiufeng; Zhang, Jianhui; Huang, Jun; Wang, Ying

    2018-03-21

    Because little is known about the atomization theory of a micro-tapered aperture atomizer, we investigated the vibration characteristics of this type of atomizer. The atomization mechanism of a micro-tapered aperture atomizer was described, and the atomization rate equation was deduced. As observed via microscopy, the angle of the micro-tapered aperture changes with the applied voltage, which proved the existence of a dynamic cone angle. The forward and reverse atomization rates were measured at various voltages, and the influence of the micro-tapered aperture and its variation on the atomization rate was characterized. The resonance frequency of the piezoelectric vibrator was obtained using a laser vibrometer, and the atomization rates were measured at each resonance frequency. From experiments, we found that the atomization rates at the first five resonance frequencies increased as the working frequency increased. At the fifth resonance frequency (121.1 kHz), the atomization rate was maximized (0.561 mL/min), and at the sixth resonance frequency (148.3 kHz), the atomization rate decreased significantly (0.198 mL/min). The experimental results show that the vibration characteristics of the piezoelectric vibrator have a relatively strong impact on the atomization rate. This research is expected to contribute to the manufacture of micro-tapered aperture atomizers.

  19. Theoretical atomic physics for fusion. 1995 annual report

    International Nuclear Information System (INIS)

    Pindzola, M.S.

    1995-01-01

    The understanding of electron-ion collision processes in plasmas remains a key factor in the ultimate development of nuclear fusion as a viable energy source for the nation. The 1993--1995 research proposal delineated several areas of research in electron-ion scattering theory. In this report the author summarizes his efforts in 1995. The main areas of research are: (1) electron-impact excitation of atomic ions; (2) electron-impact ionization of atomic ions; and (3) electron-impact recombination of atomic ions

  20. Studies of glass waste form performance at Japan Atomic Energy Research Institute

    International Nuclear Information System (INIS)

    Banba, Tsunetaka; Kamizono, Hiroshi; Nakayama, Shinichi; Tashiro, Shingo

    1989-08-01

    The recent studies of glass waste form performance at Japan Atomic Energy Research Institute can be classified into the following three categories; (1) Study on the volatilization of radionuclides from the waste glass, which is necessary to estimate the safety in relation to operation of a storage facility. (2) Study on the radiation (alpha-radiation) effects which have relation to the long-term stability of the waste glass. (3) Study on the leaching behavior of actinides under the repository conditions, which is necessary to predict the long-term release rate of radionuclides from the waste glass. In the present report, the recent results corresponding to the above categories are described. (author)

  1. Research involving hot atoms of nucleogenic origin and its practical application

    International Nuclear Information System (INIS)

    Ferrieri, R.A.; Wolf, A.P.

    1990-01-01

    Over the years, a large body of information has amassed which has helped to clarify the authors understanding of the complex chemistry occurring within chemical systems immediately following a nuclear reaction. With the increased knowledge of how reactive nuclides generated by such processes react chemically, it became increasingly apparent that the translational or recoil energy imparted to such species was not always the driving force behind some of the unusual chemistry seen in these systems. In many instances, the state of electronic excitation was found to strongly affect their chemistry. In others, the concomitant radiation chemistry often altered initial chemical states. Even so, with just a general understanding of how these effects work in unison, it has been possible in many instances to predict radiolabel distributions and yields in molecules. This ability has had an enormous impact in other fields utilizing radiotracers in research. This presentation will highlight specific examples in basic hot atom research which have focused on these problems, and describe general applications to other disciplines using radiotracers

  2. Atomic and Molecular Interactions

    International Nuclear Information System (INIS)

    2002-01-01

    The Gordon Research Conference (GRC) on Atomic and Molecular Interactions was held at Roger Williams University, Bristol, RI. Emphasis was placed on current unpublished research and discussion of the future target areas in this field

  3. Recent experiments involving highly excited atoms

    International Nuclear Information System (INIS)

    Latimer, C.J.

    1979-01-01

    Very large and fragile atoms may be produced by exciting normal atoms with light or by collisions with other atomic particles. Atoms as large as 10 -6 m are now routinely produced in the laboratory and their properties studied. In this review some of the simpler experimental methods available for the production and detection of such atoms are described including tunable dye laser-excitation and field ionization. A few recent experiments which illustrate the collision properties and the effects of electric and and magnetic fields are also described. The relevance of highly excited atoms in other areas of research including radioastronomy and isotope separation are discussed. (author)

  4. Free hydrogen atom collision cross sections of interest in controlled thermonuclear research

    Energy Technology Data Exchange (ETDEWEB)

    Fite, W L [John Jay Hopkins Laboratory for Pure and Applied Science, General Atomic Division of General Dynamics Corporation, San Diego, CA (United States)

    1958-07-01

    The present paper summarizes the results of measurements of the cross sections of hydrogen atoms for: (1) ionization, (2) excitation of Lyman alpha radiation on electron impact, and (3) elastic scattering of electrons of energy less than 10 eV; and also describes the approach of measurements now in progress on (4) charge-exchange between deuterons and deuterium atoms and (5) ionization of the hydrogen atom on proton impact.

  5. PREFACE: Fourth International Symposium on Atomic Technology

    Science.gov (United States)

    Okada, Shigefumi

    2010-04-01

    The International Symposium on Atomic Technology (ISAT) is held every year. The 4th Symposium (ISAT-4) was held on November 18-19, 2009 at the Seaside Hotel MAIKO VILLA KOBE, Kobe City, Japan presided by the "Atomic Technology Project". The ISAT-4 symposium was intended to offer a forum for the discussion on the latest progress in the atomic technologies. The symposium was attended by 107 delegates. There were 10 invited and 6 oral presentations. The number of poster presentations was 69. From all the contributions, 22 papers selected through review process are contained in this volume. The "Atomic Technology Project" was started in 2006 as a joint project of three institutions; (1) the Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University (CAMT), (2) the Tsukuba Research Center for Interdisciplinary Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba (TIMS) and (3) the Polyscale Technology Research Center, Research Institute for Science and Technology, Tokyo University of Science (PTRC), each of which were independently pursuing nano-technologies and was developing atomic scale operation and diagnostics, functional materials, micro processing and device. The project is funded by the Ministry of Education, Culture, Sports, Science and Technology of Japan. The goal of the project is to contribute to the development of atomic-scale science and technologies such as functional molecules, biomaterials, and quantum functions of atomic-scale structures. Shigefumi Okada Conference Chair Center for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita-city, Osaka 565-0871, Japan. Conference photograph Kobe photograph

  6. Manipulating atoms with photons

    International Nuclear Information System (INIS)

    Cohen-Tannoudji, C.N.

    1998-01-01

    The article is a translation of the lecture delivered on the occasion of the 1997 Nobel Prize awarding ceremony. The physical mechanisms which allow manipulating of neutral atoms with laser photons are described. A remark is also made concerning several possible applications of ultra-cool atoms and streams of future research. The article is completed by Prof. Cohen-Tannoudji's autobiography. (Z.J.)

  7. Progress report: 1996 Radiation Safety Systems Division

    International Nuclear Information System (INIS)

    Bhagwat, A.M.; Sharma, D.N.; Abani, M.C.; Mehta, S.K.

    1997-01-01

    The activities of Radiation Safety Systems Division include (i) development of specialised monitoring systems and radiation safety information network, (ii) radiation hazards control at the nuclear fuel cycle facilities, the radioisotope programmes at Bhabha Atomic Research Centre (BARC) and for the accelerators programme at BARC and Centre for Advanced Technology (CAT), Indore. The systems on which development and upgradation work was carried out during the year included aerial gamma spectrometer, automated environment monitor using railway network, radioisotope package monitor and air monitors for tritium and alpha active aerosols. Other R and D efforts at the division included assessment of risk for radiation exposures and evaluation of ICRP 60 recommendations in the Indian context, shielding evaluation and dosimetry for the new upcoming accelerator facilities and solid state nuclear track detector techniques for neutron measurements. The expertise of the divisional members was provided for 36 safety committees of BARC and Atomic Energy Regulatory Board (AERB). Twenty three publications were brought out during the year 1996. (author)

  8. Radiation induced mutant crop varieties: accomplishment and societal deployment

    International Nuclear Information System (INIS)

    D'Souza, S.F.

    2009-01-01

    One of the peaceful applications of atomic energy is in the field of agriculture. It finds application in crop improvement, crop nutrition, crop protection and food preservation. Genetic improvement of crop plants is a continuous endeavor. Success of a crop improvement programme depends on the availability of large genetic variability, which a plant breeder can combine to generate new varieties. In nature, occurrence of natural variability in the form of spontaneous mutations is extremely low (roughly 10 -6 ), which can be enhanced to several fold (approximately 10 -3 ) by using ionizing radiations or chemical mutagens. Radiation induced genetic variability in crop plants is a valuable resource from which plant breeder can select and combine different desired characteristics to produce better crop varieties. Crop improvement programmes at Bhabha Atomic Research Centre (BARC) envisage radiation based induced mutagenesis along with recombination breeding in country's important cereals (rice and wheat), oilseeds (groundnut, mustard, soybean and sunflower), grain legumes (blackgram, mungbean, pigeonpea and cowpea), banana and sugarcane

  9. The fifth Atomic Energy Research dynamic benchmark calculation with HEXTRAN-SMABRE

    International Nuclear Information System (INIS)

    Haenaelaeinen, Anitta

    1998-01-01

    The fifth Atomic Energy Research dynamic benchmark is the first Atomic Energy Research benchmark for coupling of the thermohydraulic codes and three-dimensional reactor dynamic core models. In VTT HEXTRAN 2.7 is used for the core dynamics and SMABRE 4.6 as a thermohydraulic model for the primary and secondary loops. The plant model for SMABRE is based mainly on two input models. the Loviisa model and standard WWER-440/213 plant model. The primary circuit includes six separate loops, totally 505 nodes and 652 junctions. The reactor pressure vessel is divided into six parallel channels. In HEXTRAN calculation 176 symmetry is used in the core. In the sequence of main steam header break at the hot standby state, the liquid temperature is decreased symmetrically in the core inlet which leads to return to power. In the benchmark, no isolations of the steam generators are assumed and the maximum core power is about 38 % of the nominal power at four minutes after the break opening in the HEXTRAN-SMABRE calculation. Due to boric acid in the high pressure safety injection water, the power finally starts to decrease. The break flow is pure steam in the HEXTRAN-SMABRE calculation during the whole transient even in the swell levels in the steam generators are very high due to flashing. Because of sudden peaks in the preliminary results of the steam generator heat transfer, the SMABRE drift-flux model was modified. The new model is a simplified version of the EPRI correlation based on test data. The modified correlation behaves smoothly. In the calculations nuclear data is based on the ENDF/B-IV library and it has been evaluated with the CASMO-HEX code. The importance of the nuclear data was illustrated by repeating the benchmark calculation with using three different data sets. Optimal extensive data valid from hot to cold conditions were not available for all types of fuel enrichments needed in this benchmark.(Author)

  10. Atomic processes relevant to polarization plasma spectroscopy

    International Nuclear Information System (INIS)

    Fujimoto, T.; Koike, F.; Sakimoto, K.; Okasaka, R.; Kawasaki, K.; Takiyama, K.; Oda, T.; Kato, T.

    1992-04-01

    When atoms (ions) are excited anisotropically, polarized excited atoms are produced and the radiation emitted by these atoms is polarized. From the standpoint of plasma spectroscopy research, we review the existing data for various atomic processes that are related to the polarization phenomena. These processes are: electron impact excitation, excitation by atomic and ionic collisions, photoexcitation, radiative recombination and bremsstrahlung. Collisional and radiative relaxation processes of atomic polarization follow. Other topics included are: electric-field measurement, self alignment, Lyman doublet intensity ratio, and magnetic-field measurement of the solar prominence. (author)

  11. Progress of highly charged atomic physics at IMP

    International Nuclear Information System (INIS)

    Ma, X; Zhu, X L; Liu, H P; Li, B; Wei, B R; Sha, S; Cao, S P; Chen, L F; Zhang, S F; Feng, W T; Zhang, D C; Qian, D B

    2007-01-01

    The progress of atomic physics researches at the Institute of Modern Physics (IMP) is reviewed, covering the studies on ion-atom/molecule collisions, ion-cluster interaction, negative ion formation, state-selective electron capture studied by COLTRIMS, as well as the progress of a new experimental area dedicated for atomic researches at moderate energies, and the advances of the cooler storage rings at the Heavy Ion Research Facility in Lanzhou (HIRFL). New opportunities to study collision dynamics from femto-second to atto-second regime are opened based on the present facilities and the on-going projects

  12. How power is generated in a nuclear reactor

    International Nuclear Information System (INIS)

    Swaminathan, V.

    1978-01-01

    Power generation by nuclear fission as a result of chain reaction caused by neutrons interacting with fissile material such as 235 U, 233 U and 239 Pu is explained. Electric power production by reactor is schematically illustrated. Materials used in thermal reactor and breeder reactor are compared. Fuel reprocessing and disposal of radioactive waste coming from reprocessing plant is briefly described. Nuclear activities in India are reviewed. Four heavy water plants and two power reactors are under construction and will be operative in the near future. Two power reactors are already in operation. Nuclear Fuel Complex at Hyderabad supplies fuel element to the reactors. Fuel reprocessing and waste management facility has been set up at Tarapur. Bhabha Atomic Research Centre at Bombay and Reactor Research Centre at Kalpakkam near Madras are engaged in applied and basic research in nuclear science and engineering. (B.G.W.)

  13. Atomic molecular and optical physics

    International Nuclear Information System (INIS)

    Anon.

    1986-01-01

    Laser-assisted manufacturing and fiber-optics communications are but two of the products of atomic, molecular, and optical physics, (AMO) research. AMO physics provides theoretical and experimental methods and essential data to neighboring areas of science such as chemistry, astrophysics, condensed-matter physics, plasma physics, surface science, biology, and medicine. This book addresses advances in atomic, molecular, and optical fields and provides recommendations for further research. It also looks at scientific applications in national security, manufacturing, medicine, and other fields

  14. Atomic physics center in 1972. Progress report

    Energy Technology Data Exchange (ETDEWEB)

    Blanc, D

    1973-12-31

    The activities of the Toulouse Atomic Physics Center in 1972 are presented. Each research group of the atomic physics section is dealt with separately: atomic collisions, afterglow in gases, dc discharges in medium and high pressure gases, electric arcs, the physics of dielectrics, transport of radiation in matter, stimulated electronic emission, and pn semiconductor junctions. Because of its size, the aerosol and atmospheric exchanges section was not divided into different research groups; the work carried out by this section is presented as a single overall account. (auth)

  15. Researches carried out by Japan Atomic Energy Research Institute in the field of environmental protection

    International Nuclear Information System (INIS)

    Kavakami, Yu.

    2000-01-01

    The results of works, accomplished by the Japanese Atomic Energy Research Institute, related to evaluation of the nuclear facilities effect on the environmental medium, are considered. The analytical results of studies on the environmental radioactivity with an account of meteorological aspects, evaluation of the nuclear facilities impact on the environmental medium are presented. Studies on the radionuclide behavior in the environmental medium cover large range of problems: distribution of natural and artificial radionuclides in the surface medium and their migration; evaluation of the human radiation doses on the account of radionuclides; environmental medium protection and risk evaluation. The method for measuring the 90 Sr concentrations with application of ion-exchange tars and a simple method for determining the radon activity with application of liquid scintillators were developed in the process of the study on creation of the environmental medium monitoring. The studies, related to the content and behavior of tritium, Pu, 137 Cs, 247 Am, as well as mercury and other heavy metals in the environmental medium were carried out. The methods for evaluating the NPPs radiation effect on the population with an account of the radioactive substances releases both by normal operation and in the emergency situations, were developed. Attention is also paid to research programs and developed codes [ru

  16. Research as a guide for curriculum development: An example from introductory spectroscopy. II. Addressing student difficulties with atomic emission spectra

    Science.gov (United States)

    Ivanjek, L.; Shaffer, P. S.; McDermott, L. C.; Planinic, M.; Veza, D.

    2015-02-01

    This is the second of two closely related articles (Paper I and Paper II) that together illustrate how research in physics education has helped guide the design of instruction that has proved effective in improving student understanding of atomic spectroscopy. Most of the more than 1000 students who participated in this four-year investigation were science majors enrolled in the introductory calculus-based physics course at the University of Washington (UW) in Seattle, WA, USA. The others included graduate and undergraduate teaching assistants at UW and physics majors in introductory and advanced physics courses at the University of Zagreb, Zagreb, Croatia. About half of the latter group were preservice high school physics teachers. Paper I describes how several conceptual and reasoning difficulties were identified among university students as they tried to relate a discrete line spectrum to the energy levels of atoms in a light source. This second article (Paper II) illustrates how findings from this research informed the development of a tutorial that led to improvement in student understanding of atomic emission spectra.

  17. On promotion of base technologies of atomic energy. Aiming at breakthrough in atomic energy technologies in 21st century

    Energy Technology Data Exchange (ETDEWEB)

    1988-09-01

    In the long term plan of atomic energy development and utilization decided in June, 1987 by the Atomic Energy Commission, it was recognized that hereafter, the opening-up of the new potential that atomic energy possesses should be aimed at, and the policy was shown so that the research and development hereafter place emphasis on the creative and innovative region which causes large technical innovation, by which the spreading effect to general science and technology can be expected, and the development of the base technologies that connect the basic research and project development is promoted. The trend of atomic energy development so far, the change of the situation surrounding atomic energy, the direction of technical development of atomic energy hereafter and the base technologies are discussed. The concept of the technical development of materilas, artificial intelligence, lasers, and the evaluation and reduction of radiation risks used for atomic energy is described. As the development plan of atomic energy base technologies, the subjects of technical development, the future image of technical development, the efficient promotion of the development and so on are shown. (Kato, I.).

  18. India: Past achievements and future promises

    International Nuclear Information System (INIS)

    Sethna, H.N.

    1972-01-01

    Generation of nuclear power has been one of the major objectives of the atomic energy programme in India. One of the early tasks was to establish a firm technological base for the various activities involved in the development of atomic energy. A national research centre then called the Atomic Energy Establishment Trombay and now renamed as Bhabha Atomic Research Centre (BARC) was created at Trombay near Bombay, and a wide range of R and D activities were initiated, ranging from basic studies in nuclear and solid state physics to investigations in metallurgy, engineering, health physics and nuclear medicine. Viewed especially against the Indian background, the Centre's contributions have been substantial. In addition to building up expertise to take up work in connection with the development, design, and construction of power reactors, it was essential to introduce the manufacturing know how-into industry for the fabrication of all the sophisticated components for these reactors. It was also necessary to establish processes for the fabrication and reprocessing of nuclear fuel and the production of fuel materials and other special materials such as zircaloy and heavy water. Endeavour to be self-sufficient in all aspects of nuclear technology is particularly important for a developing country, so that introduction of a fairly large nuclear power programme does not result in too unfavourable a balance of payment situation

  19. Spectroscopy Division : Progress report for Oct 1979 - Dec 1980

    International Nuclear Information System (INIS)

    Saksena, G.D.; Naik, R.C.

    1981-01-01

    An account of the activities, with an individual summary of each, of the Spectroscopy Division of the Bhabha Atomic Research Centre (BARC), Bombay, for the period from October 1979 to December 1980 is given. The activities of the Division are mainly concerned with: (1) spectrochemical analysis of nuclear fuels, reactor materials, mineral samples, environmental samples, biological samples, and other samples by methods of optical emission spectroscopy, electron spectroscopy, and X-ray fluorescence spectroscopy, (2) research and development primarily in the field of high resolution atomic and molecular spectroscopy, and (3) design and fabrication of high precision optical instruments and electronic components for other Divisions of BARC and other constituent units of the Department of Atomic Energy. During the report period, the following were fabricated: a monochromator using a concave holographic grating, a holographic grating spectrograph, a core viewing system for the Fast Breeder Test Reactor now under construction at Kalpakkam, a critical angle refractometer for heavy water analysis in the Rajasthan Atomic Power Station, electronic equipment like frequency divider amplifier, lock-in-voltmeter, analog ratio meter etc. required for laser spectroscopy. Lists of the staff members, their publications during the report period, educational and training activities of the Division are also given. Two feature articles, one dealing with beam foil spectroscopy and the other with monochromatization of synchrotron radiation, are also included. (M.G.B.)

  20. Superconducting linac booster

    International Nuclear Information System (INIS)

    Srinivasan, B.; Betigeri, M.G.; Pandey, M.K.; Pillay, R.G.; Kurup, M.B.

    1997-01-01

    The report on superconducting LINAC booster, which is a joint project of Bhabha Atomic Research Centre (BARC) and Tata Institute of Fundamental Research (TIFR), brings out the work accomplished so far towards the development of the technology of superconducting LINAC to boost the energy of ions from the 14UD Pelletron. The LINAC is modular in construction with each module comprising of a helium cryostat housing four lead-plated quarter wave resonators. The resonators are superconducting for temperatures below 7.19K. An energy boost of 2 MeV/q per module is expected to be achieved. The first module and the post-tandem superbuncher have been fabricated and tested on the LINAC beam line. This report gives a summary of the technological achievements and also brings out the difficulties encountered during the R and D phase. (author)