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Sample records for katrin sak gerda

  1. Toiduvilja koht pole kütusepaagis / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Ilmunud ka: Nädaline 22. mai, lk. 4, Pärnu Postimees 22. mai, lk. 15, Võrumaa Teataja 22. mai, lk. 2, Vooremaa 22. mai, lk. 2, Valgamaalane 22. mai lk. 2, Hiiu Leht 23. mai, lk. 2, Kuulutaja 23. mai lk. 4, Koit 24. mai lk. 6, Järva Teataja, Harju Elu 27. mai lk. 2, Vali Uudised 28. mai lk. 2, Meie Maa 29. mai lk. 2, Lääne Elu 5. juuni lk. 2, Virumaa Teataja 6. juuni, lk. 11, Sakala 6. juuni lk. 2, Molodjozh Estonii 9. juuni lk. 7. Euroopa Parlamendi liige annab ülevaate EL biokütusepoliitikast

  2. Ebavõrdsus hukutab Eesti arengu / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2004-01-01

    Ilmunud ka: Pärnu Postimees, 22. jaan. 2004, lk. 11; Võrumaa Teataja, 24. jaan. 2004, lk. 2; Meie Maa, 24. jaan. 2004, lk. 2; Hiiu Leht, 27. jaan. 2004, lk. 2; Põhjarannik, 31. jaan. 2004, lk. 2; Severnoje Poberezhje, 31. jaan. 2004, lk. 2; Koit, 3. veebr. 2004, lk. 6; Hiiumaa, 3. veebr. 2004, lk. 2. Autor vaatleb riigi osa ebavõrduse ilmingute likvideerimisel Eestis ja leiab, et ebavõrdsus on meie arengu peamine takistus, mille kõrvaldamine on sotsiaaldemokraatide peamine eesmärk

  3. Laste hulk ei sõltu toonekurgede arvukusest / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2006-01-01

    Perekonnaseaduse eelnõust ja samasooliste abielust. Sama ka Harjumaa 24. jaan. 2006, lk. 2 ; Võrumaa Teataja 24. jaan. 2006, lk. 2 ; Vali Uudised 25. jaan. 2006, lk. 2 ; Meie Maa 25. jaan. 2006, lk. 2 ; Hiiu Leht 27. jaan. 2006, lk. 2 ; Kuulutaja 27. jaan. 2006, lk. 4 ; Lõunaleht 26. jaan. 2006, lk. 2 ; Vooremaa 26. jaan. 2006, lk. 2 ; Pärnu Postimees 2. veeb. 2006, lk. 11 ; Sakala 2. veeb. 2006, lk. 2 ; Valgamaalane 25. aprill 2006, lk. 2 ; Hiiu Leht 9. mai 2006, lk. 2 ; Sotsiaaldemokraat 16. veeb. 2006, lk. 5

  4. Pikk tee märkamiseni / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Õpilaste koolisuhetest ning koolivägivallast. Ilmunud ka Vooremaa 9. okt. 2008, lk. 2 ; Võrumaa Teataja 11. okt. 2008, lk. 2 ; Koit 11. okt. 2008, lk. 6 ; Meie Maa 13. okt. 2008, lk. 2 ; Pärnu Postimees 10. okt. 2008, lk. 15 ; Virumaa Teataja 15. okt. 2008, lk. 11

  5. Äraaetud hobused lastakse maha / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Tööaja direktiivi muutmise eelnõust, mis suurendaks töötajate tööaja piiranguid. Ilmunud ka Põhjarannik 19. juuni 2008, lk.2 ; Vooremaa 21. juuni 2008, lk. 2 ; Virumaa Teataja 27. juuni 2008, lk. 11 ; Pärnu Postimees 27. juuni 2008, lk. 15 ; Järva Teataja 1. juuli 2008, lk. 2 ; Koit 3. juuli 2008, lk. 6 ; Nädalaleht 20. juuni 2008, lk. 7

  6. Exercise KATRINE

    International Nuclear Information System (INIS)

    Clahane, Darren; Burgoyne, William

    1995-01-01

    Based on a hypothetical incident at the Scottish Nuclear Ltd Torness AGR nuclear power station, Exercise KATRINE was the 1994 national civil nuclear exercise and the biggest simulation of a nuclear accident to take place in Britain last year. The exercise, held on 17 and 18 November, was based on a series of postulated faults which resulted in an uncontrolled release of radioactivity. It commenced at 07.00 on Thursday and continued for about 33 hours, until around 15.30 on Friday. Activity focused on the Torness Off-site Centre (TOSC), in Cockenzie near Edinburgh, and the brand new Torness Media Briefing Centre (TMBC) located nearby. (author)

  7. Gerda Murre / Lidia Sooster

    Index Scriptorium Estoniae

    Sooster, Lidia, 1926-1999

    2000-01-01

    Estonia teatri laulja Gerda Murre elust Karaganda oblastis Kiilasmäe erilaagris, kus ta oli Kiilasmäe naisteteatri kunstiline juht. (1940/41 aastavahetusel arreteeriti ebaseaduslikult ja saadeti 1941 asumisele Siberisse). Ka hilisematest kokkupuudetest Eestis

  8. The GERDA calibration system

    Energy Technology Data Exchange (ETDEWEB)

    Baudis, Laura; Froborg, Francis; Tarka, Michael; Bruch, Tobias; Ferella, Alfredo [Physik-Institut, Universitaet Zuerich (Switzerland); Collaboration: GERDA-Collaboration

    2012-07-01

    A system with three identical custom made units is used for the energy calibration of the GERDA Ge diodes. To perform a calibration the {sup 228}Th sources are lowered from the parking positions at the top of the cryostat. Their positions are measured by two independent modules. One, the incremental encoder, counts the holes in the perforated steel band holding the sources, the other measures the drive shaft's angular position even if not powered. The system can be controlled remotely by a Labview program. The calibration data is analyzed by an iterative calibration algorithm determining the calibration functions for different energy reconstruction algorithms and the resolution of several peaks in the {sup 228}Th spectrum is determined. A Monte Carlo simulation using the GERDA simulation software MAGE has been performed to determine the background induced by the sources in the parking positions.

  9. GERDA: Results and perspectives

    Science.gov (United States)

    Cattadori, Carla Maria; GERDA Collaboration

    2015-08-01

    From November 2011 to May 2013, GERDA searched for 0 νββ and 2 νββ of 76Ge, operating bare in a liquid argon bath Ge detectors enriched up to ˜ 87% in 76Ge (enrGe), for a total mass of ˜ 18 kg of enrGe. A total exposure of 21.6 kgṡy, of enrGe was collected, and the existing claim [H. V. Klapdor-Kleingrothaus et al., Phys. Lett. B 586 (2004) 198] of 0 νββ evidence was scrutinized. GERDA didn't observe any peak at Qββ or in its immediate surroundings; the limit of T1/20ν > 2.1 ṡ1025 yr (90 % C.L.) is derived [GERDA collaboration: M. Agostini et al., Phys. Rev. Lett. 111, (2013) 122503]. When combining the GERDA limit with those of past HdM [HdM collaboration: H. V. Klapdor-Kleingrothaus et al., Eur. Phys. J. A12 (2001) 147] and Igex [Igex Collaboration: C. E. Aalseth et al., Phys. Rev. D 65 (2002) 092007] experiments, the lower limit of 3.0 ṡ1025 yr (90 % C.L.) on T1/20ν is achieved. The background index (BI) at Qββ (˜ 2039 keV) is ˜ 2.0 ṡ10-2 cts / (keV ṡkg ṡyr) and ˜ 1.0 ṡ10-2 cts / (keV ṡkg ṡyr), prior and after the pulse shape cuts respectively. Thanks to the low background the 2 νββ dominates the energy spectrum below 1800 keV: the Tν1/2 2 = (1.84-0.10+0.14) ṡ1021y was derived on a first data set corresponding to 5.1 kgṡyr exposure [GERDA collaboration: M. Agostini et al., J. Phys. G 40 (2013), 035110]. The ongoing experimental program, to double the exposed mass by adding new enrGe detectors with improved pulse shape discrimination features, and to implement the liquid argon scintillation light readout is outlined.

  10. Katrin Pajuste / Jane Frey

    Index Scriptorium Estoniae

    Frey, Jane, 1950-

    2005-01-01

    24. septembril 2004. a. kaitses Katrin Pajuste Tartu Ülikoolis väitekirja teemal "Õhusaasteainete sadenemine ja transformeerumine okaspuumetsades: Eesti riiklike seireandmete põhjal" ("Deposition and transformation of air pollutants in coniferous forests: a study based on Estonian monitoring data")

  11. Peeter Saks maksab karmavõlga / Paavo Kangur

    Index Scriptorium Estoniae

    Kangur, Paavo, 1966-

    2006-01-01

    Investeerimispanga Suprema Securities juhatuse esimees Peeter Saks oma sportlasekarjäärist, muudatustest investeerimispanga juhtkonnas ning panga tegevusest sportlaste toetamisel. Kommenteerib mäesuusataja Tiiu Nurmberg

  12. An evaluation of sex-age-kill (SAK) model performance

    Science.gov (United States)

    Millspaugh, Joshua J.; Skalski, John R.; Townsend, Richard L.; Diefenbach, Duane R.; Boyce, Mark S.; Hansen, Lonnie P.; Kammermeyer, Kent

    2009-01-01

    The sex-age-kill (SAK) model is widely used to estimate abundance of harvested large mammals, including white-tailed deer (Odocoileus virginianus). Despite a long history of use, few formal evaluations of SAK performance exist. We investigated how violations of the stable age distribution and stationary population assumption, changes to male or female harvest, stochastic effects (i.e., random fluctuations in recruitment and survival), and sampling efforts influenced SAK estimation. When the simulated population had a stable age distribution and λ > 1, the SAK model underestimated abundance. Conversely, when λ < 1, the SAK overestimated abundance. When changes to male harvest were introduced, SAK estimates were opposite the true population trend. In contrast, SAK estimates were robust to changes in female harvest rates. Stochastic effects caused SAK estimates to fluctuate about their equilibrium abundance, but the effect dampened as the size of the surveyed population increased. When we considered both stochastic effects and sampling error at a deer management unit scale the resultant abundance estimates were within ±121.9% of the true population level 95% of the time. These combined results demonstrate extreme sensitivity to model violations and scale of analysis. Without changes to model formulation, the SAK model will be biased when λ ≠ 1. Furthermore, any factor that alters the male harvest rate, such as changes to regulations or changes in hunter attitudes, will bias population estimates. Sex-age-kill estimates may be precise at large spatial scales, such as the state level, but less so at the individual management unit level. Alternative models, such as statistical age-at-harvest models, which require similar data types, might allow for more robust, broad-scale demographic assessments.

  13. Valitsusliit jätab lasteaiaõpetajad virelema / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2004-01-01

    Koolieelsete lasteasutuste seaduse muutmise seaduseelnõu hääletati Riigikogu menetlusest välja, vanemahüvitistest. Ilmunud ka Pärnu Postimees 23. sept. 2004, lk. 15 ; Hiiu Leht 24. sept. 2004, lk. 2 ; Sakala 24. sept. 2004, lk. 2 ; Vali Uudised 24. sept. 2004, lk. 2 ; Nädaline 23. sept. 2004, lk. 4 ; Põhjarannik 24. sept. 2004, lk. 2 ; Türi Rahvaleht 24. sept. 2004, lk. 4, Meie Maa 28. sept. 2004. lk. 2 ; Koit 30. sept. 2004, lk. 6 ; Vooremaa 7. okt. 2004, lk. 2 ; Valgamaalane 16. okt. 2004, lk. 2

  14. Onu Miltie mälestuseks ehk Mis seob New Orleansi ja Keilat? / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    16. novembril sai kaks aastat liberaalse majanduse guru Milton Friedmani surmast. Friedmani šokidoktriinist, katastroofikapitalismist ja pimedast usust erakapitali, ajal, mil Keila linnaisad olid otsustanud, et haridust hakkab munitsipaalkooli asemel edendama sihtasutus

  15. Uued muutused nõuavad enam selgitustööd / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Euroopa Liidu otsustest ja nende tähtsusest ning selgitamise vajadusest. Ilmunud ka Koit 22. jaan. 2008, lk. 6, pealkiri kujul: Muutused nõuavad poliitikutelt järjest enam selgitustööd, Meie Maa 22. jaan. 2008, lk. 2 ; Sakala 24. jaan. 2008, lk. 2 ; Valgamaalane 22. jaan. 2008, lk. 2 ; Virumaa Teataja 25. jaan. 2008, lk. 11 ; Lääne Elu 24. jaan. 2008, lk. 2 ; Pärnu Postimees 5. veeb. 2008, lk. 19

  16. Kes kaitseb röövelliku kiirlaenu eest? / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Kiirlaenudest ja nendega seonduvatest probleemidest Eestis, seaduseelnõust, mis suurendab SMS-laenu võtnute võimalusi kaitsta oma õigusi laenuandjate ees ning olukorra ohjeldamisest Rootsis ja Soomes. Ilmunud ka Pärnu Postimees 31. okt. 2008, lk. 11, pealkiri kujul: kaitse röövelliku kiirlaenu vastu ja tarbijakaitsepoliitika ; Lõunaleht 6. nov. 2008, lk. 4, pealkiri kujul: kes kaitseb röövelliku kiirlaenu eest ehk tarbijakaitsepoliitika lakmustest ; Vali Uudised 7. nov. 2008, lk. 2 ; Harju Ekspress 7. nov. 2008, lk. 8, pealkiri kujul: kes kaitseb röövelliku kiirlaenu vastu ehk tarbijakaitsepoliitika lakmustest ; Türi Rahvaleht 14. nov. 2008, lk. 4 ; Virumaa Teataja 14. nov. 2008, lk. 11, pealkiri kujul: kiirlaenud on test tarbijakaitsepoliitikale ; Kuulutaja 14. nov. 2008, lk. 4, pealkiri kujul: kes kaitseb kiirlaenu vastu ; Vooremaa 18. nov. 2008, lk. 2 ; Sõnumitooja 26. nov. 2008, lk. 2 ; Koit : Tarbijaleht 27. nov. 2008, lk. 10

  17. Ohutusnõuded laste mänguasjadele muutuvad senisest karmimaks / Katrin Saks

    Index Scriptorium Estoniae

    Saks, Katrin, 1956-

    2008-01-01

    Euroopa Komisjoni avaldatud kauaoodatud mänguasjade ohtuse direktiivi eelnõust, mis reguleerib siin müüdavate mängukannide ohutusnõudeid. Ilmunud ka Meie Maa 23. okt. 2008, lk. 2, pealkiri kujul: nõuded laste mänguasjadele muutuvad karmimaks ; Põhjarannik 23. okt. 2008, lk. 2 ; Järva Teataja 25. okt. 2008, lk. 2, pealkiri kujul: lelude ohutusnõuded karmistuvad ; Kuulutaja 24. okt. 2008, lk. 4 ; Oma Saar 6. nov. 2008, lk. 5 ; Pärnu Postimees 7. nov. 2008, lk. 15 ; Valgamaalane 11. nov. 2008, lk. 2

  18. Status of the GERDA experiment

    International Nuclear Information System (INIS)

    Medinaceli, E.

    2016-01-01

    The GERDA experiment is designed to search for neutrinoless double beta decay (0νββ) using "7"6Ge, therefore asses the nature of neutrinos (Dirac or Majorana). In the so-called Phase I, with an exposure of 21.6 kr yr, GERDA reached a background index (BI) of 10"−"2 cts/(keV kg yr) at 90% CL No signal was found during this phase and a lower limit on the process half-life of 2.1 × 10"2"5 yr was derived (90% CL). GERDA is currently being upgraded to its Phase II, where the "7"6Ge mass will be double, and it is expected to reduce by an order of magnitude the BI. For 0νββ half-lives at the order of 10"2"6 yr will be derived in the absence of signal. The experimental techniques used by GERDA will be depicted and the most relevant results from Phase I will be shown; as well as details on the upgrades of Phase II, including the status of the additional detectors deployed recently, and the new background reduction techniques using the active liquid Argon veto.

  19. Status of the GERDA experiment

    Science.gov (United States)

    Medinaceli, E.; Gerda Collaboration

    2017-07-01

    The GERDA experiment is designed to search for neutrinoless double beta decay (0νββ) using ^{76} Ge, therefore asses the nature of neutrinos (Dirac or Majorana). In the so-called Phase I, with an exposure of 21.6kr yr, GERDA reached a background index (BI) of 10^{-2}{ cts/(keV kg yr)} at 90% CL No signal was found during this phase and a lower limit on the process half-life of 2.1×10^{25}{ yr} was derived (90% CL). GERDA is currently being upgraded to its Phase II, where the ^{76} Ge mass will be double, and it is expected to reduce by an order of magnitude the BI. For 0νββ half-lives at the order of 10^{26}{ yr} will be derived in the absence of signal. The experimental techniques used by GERDA will be depicted and the most relevant results from Phase I will be shown; as well as details on the upgrades of Phase II, including the status of the additional detectors deployed recently, and the new background reduction techniques using the active liquid Argon veto.

  20. Upgrades for GERDA Phase II

    Science.gov (United States)

    Heisel, Mark

    2014-09-01

    The Germanium Detector Array (GERDA) experiment is searching for the neutrinoless double beta decay (0 νββ) of 76Ge. It is a process that violates lepton number conservation and is predicted to occur in extensions of the standard model of particle physics. GERDA is located underground in the Gran Sasso National Laboratory (LNGS), Italy. An array of bare high-purity germanium detectors enriched in 76Ge is operated in a cryostat with 64 m3 of liquid argon supplemented by a 3 m thick shield of water. The experiment aims at exploring the 0 νββ decay up to a half life of 2 .1026 yr in two phases: Phase I of the experiment has been concluded last year. No signal is observed and the so far best limit is derived for the half life of the 0 νββ decay of 76Ge, T1/20ν GERDA) experiment is searching for the neutrinoless double beta decay (0 νββ) of 76Ge. It is a process that violates lepton number conservation and is predicted to occur in extensions of the standard model of particle physics. GERDA is located underground in the Gran Sasso National Laboratory (LNGS), Italy. An array of bare high-purity germanium detectors enriched in 76Ge is operated in a cryostat with 64 m3 of liquid argon supplemented by a 3 m thick shield of water. The experiment aims at exploring the 0 νββ decay up to a half life of 2 .1026 yr in two phases: Phase I of the experiment has been concluded last year. No signal is observed and the so far best limit is derived for the half life of the 0 νββ decay of 76Ge, T1/20 ν GERDA Collaboration.

  1. Low background aspects of GERDA

    International Nuclear Information System (INIS)

    Simgen, Hardy

    2011-01-01

    The GERDA experiment operates bare Germanium diodes enriched in 76 Ge in an environment of pure liquid argon to search for neutrinoless double beta decay. A very low radioactive background is essential for the success of the experiment. We present here the research done in order to remove radio-impurities coming from the liquid argon, the stainless steel cryostat and the front-end electronics. We found that liquid argon can be purified efficiently from 222 Rn. The main source of 222 Rn in GERDA is the cryostat which emanates about 55 mBq. A thin copper shroud in the center of the cryostat was implemented to prevent radon from approaching the diodes. Gamma ray screening of radio-pure components for front-end electronics resulted in the development of a pre-amplifier with a total activity of less than 1 mBq 228 Th.

  2. Use of pipe saks on pipeline construction

    Energy Technology Data Exchange (ETDEWEB)

    Ghio, Alberto F.M.; Caciatori, Angelo [Galvao Engenharia S.A., Sao Paulo, SP (Brazil); Ruschi, Allan A.; Santos, Felipe A. dos; Barros, Horacio B. de; Loureiro, Regis R. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2009-07-01

    The use of new technologies applied to pipeline construction and assembling, aimed at enhancing productivity has been searched by PETROBRAS, throughout its subcontractors, assemblers, by transference in the mentioned constructions. Along the construction of Cacimbas Catu Pipeline, Spread 1 A, placed between the Cacimbas Gas Treatment Station (Linhares, ES) and the future Compression Station of Sao Mateus (ES), one, by means of surveys, noticed that the length of flooded or prone to flooding areas was way superior to the ones foreseen in the basic design. One of the broadly used methods for assuring buoyancy control is concreting the pipes. Such method deeply impacts work's logistics in for instance, the pipe stringing work; in this one, a maximum load of two pipes can be transported until the area to applied, what leads to lower productivity and higher risk due to the increase of trips by heavy load trucks. As an alternative to regular concrete, the Pipe Sak System was adopted and such method improved productivity and decreased discontinuities. (author)

  3. Gerdas råd

    DEFF Research Database (Denmark)

    Evron, Lotte Orr

    2017-01-01

    I den her blogpost vil jeg præsentere det, som Gerda kalder et eksemplarisk fald og fortælle om, hvordan hun lever med fald. Posten er udarbejdet ud fra en løbende samtale jeg havde sammen med ti mennesker, der var faldet. Samtalerne var slået op som et tilbud om en individuel samtale om fald, men...... medarbejderne, andre var mødt op på eget initiativ. Workshoppen foregik i august 2014. Seks af deltagerne var til stede hele seancen, fire gik til og fra undervejs. Gerda var en af dem, som valgte at blive under hele seancen. Et par af deltagerne ønskede ikke at samtalerne blev optaget, derfor blev der taget...... noter undervejs og efter workshoppen. Alle gav mundtlig tilladelse til, at jeg måtte bruge mine noter i min forskning og faldforebyggelsesarbejde. Gerda er 82 år og bor alene med sin hund i et stort hus. Ud over lidt hjælp til rengøring hver 14. dag klarer hun selv alt andet i sin dagligdag. Ca. tre...

  4. Study on preservation of sweet apricot kernel (SAK) by γ-irradiation

    International Nuclear Information System (INIS)

    Wang Jide; Xu Fang

    1992-01-01

    This paper introduces the study on effect of insecticide and sterilization of SAK by 60 Co γ irradiation. The results declare that the proper dose kill the insect eggs on the surface of SAK is 3.5 kGy, the preserving period under ambient temperature is up to 7 months, the intactness rate is 100%, and the SAK can be safely stored through the summer. By the irradiation of 3.5 kGy, the sanitary quality of SAK can be notably improved and the amount of microbes can decrease by at least 99%. There are no remarkable changes of the main nutrition components of irradiated SAK

  5. Development and installation of the GERDA experiment

    International Nuclear Information System (INIS)

    Smolnikov, A

    2010-01-01

    The progress in the development of the GERDA (GErmanium Detector Array) experiment is presented. The goal of the experiment is the search for neutrinoless double beta decay of 76 Ge with considerable reduction of background in comparison with predecessor experiments. GERDA will operate bare germanium semiconductor detectors (enriched in 76 Ge) submerged in high purity liquid argon supplemented by a water shield. The experimental set up is currently under construction in the underground facility of LNGS, Italy. The results of various R and D efforts and the main steps of the GERDA set up design and installation are given as well as several novel methods for background reduction are described.

  6. Ions in the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Glueck, Ferenc [KIT, Campus Nord (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    The aim of the KATRIN experiment is to determine the absolute neutrino mass scale in a model independent way, by measuring the electron energy spectrum shape near the endpoint of tritium beta decay. Beta decays and ionizations produce about 2 . 10{sup 12} s{sup -1} tritium ion rate in the KATRIN source. About 10 % and 1 % of that rate is the expected flux of positive tritium ions and T{sup -} ions leaving the source in detector direction. The positive tritium ions are not affected by the pumping system, and, when unhindered, they would cause an extremely large background and tritium contamination in the spectrometers. They will be blocked in the transport system by positive potential electrodes and will be removed from the flux tube by dipole electrodes. The ion composition and the ion blocking and removal efficiency will be tested by an FT-ICR trap, a Faraday cup and the KATRIN pre- and main spectrometers and FPD, using both a photoelectron induced deuterium plasma and the tritium beta decay plasma.

  7. Status of Gerda Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Victoria [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    The GERDA experiment is designed to search for neutrinoless double beta (0νββ) decay of {sup 76}Ge. In Phase I of the experiment a background index (BI) of 10{sup -2} cts/(keV.kg.yr) was reached. No signal has been found and a lower limit on the half-life of 2.1.10{sup 25} yr (at 90% C.L.) is extracted. The aim of Phase II is to double the Ge mass and further reduce the BI by an order of magnitude to explore half-lives of about 10{sup 26} yr. Thirty new Broad Energy Germanium (BEGe) detectors have been produced. These detectors are distinct for their improved energy resolution and enhanced pulse shape discrimination of signal from background events. Further background reduction will be reached by an active veto to read out argon scintillation light. The Phase II commissioning showed that two of the major background components, external γ-rays from {sup 214}Bi and {sup 208}Tl decays, can be suppressed up to two orders of magnitude. This talk presents the current status of the GERDA Phase II upgrade.

  8. Test of GERDA Phase II detector assembly

    Energy Technology Data Exchange (ETDEWEB)

    Bode, Tobias; Gusev, Konstantin [Technische Universitaet Muenchen (Germany); Schwingenheuer, Bernhard; Wagner, Victoria [Max-Planck Institut fuer Kernphysik, Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2014-07-01

    The GERDA experiment searches for the lepton number violating neutrinoless double beta decay (0νββ) of {sup 76}Ge. The experiment uses HPGe detectors enriched in {sup 76}Ge as source and detection material. In GERDA Phase I five BEGe detectors were operated successfully. These detectors are distinguished for improved energy resolution and enhanced pulse shape discrimination (PSD) against background events. In Phase II additional 25 BEGe detectors will be installed. New electronics and radio-pure low-mass holders were specially designed for Phase II. Prior to the installation in GERDA all BEGe detectors are tested in their final assembly in the LNGS underground laboratory. This talk presents the mechanics and performance of the GERDA Phase II detector assembly.

  9. New derivative of staphylokinase SAK-RGD-K2-Hirul exerts thrombolytic effects in the arterial thrombosis model in rats.

    Science.gov (United States)

    Szemraj, Janusz; Zakrzeska, Agnieszka; Brown, George; Stankiewicz, Adrian; Gromotowicz, Anna; Grędziński, Tomasz; Chabielska, Ewa

    2011-01-01

    SAK-RGD-K2-Hir and SAK-RGD-K2-Hirul are recombinant proteins that are derivatives of r-SAK (recombinant staphylokinase). They are characterized by their fibrin-specific plasminogen activation properties and their antithrombin and antiplatelet activities. The difference between these proteins is the presence of the antithrombotic fragment (hirudin or hirulog) in the C-terminal portion of the r-SAK. The aim of the present study was to examine the thrombolytic potentials of SAK-RGD-K2-Hir and SAK-RGD-K2-Hirul in an electrically induced carotid artery thrombosis model in rats and to compare the potentials to that of r-SAK. We determined that a bolus injection of SAK-RGD-K2-Hirul was more effective than one of r-SAK in the improvement and maintenance of carotid patency and in arterial thrombus weight reduction; however, it had the same potency as SAK-RGD-K2-Hir. The bleeding time, prothrombin time and activated partial thromboplastin time were significantly prolonged in the animals that were treated with either dose (1.5 or 3.0 mg/kg) of SAK-RGD-K2-Hir or SAK-RGD-K2-Hirul, whereas no changes were observed in the plasma fibrinogen concentration or the α2 plasmin inhibitor level. r-SAK alone did not change the bleeding time or coagulation parameters. In conclusion, our findings demonstrate the thrombolytic activity of intravenous bolus injection of the novel thrombolytic agent SAK-RGD-K2-Hirul in rats. Although this protein compares favorably with r-SAK, we were unable to show the presence of any beneficial effects of SAK-RGD-K2-Hirul over those of SAK-RGD-K2-Hir. Furthermore, our results suggest that high doses of SAK-RGD-K2-Hirul bear the risk of bleeding.

  10. Sandia reactor kinetics codes: SAK and PK1D

    International Nuclear Information System (INIS)

    Pickard, P.S.; Odom, J.P.

    1978-01-01

    The Sandia Kinetics code (SAK) is a one-dimensional coupled thermal-neutronics transient analysis code for use in simulation of reactor transients. The time-dependent cross section routines allow arbitrary time-dependent changes in material properties. The one-dimensional heat transfer routines are for cylindrical geometry and allow arbitrary mesh structure, temperature-dependent thermal properties, radiation treatment, and coolant flow and heat-transfer properties at the surface of a fuel element. The Point Kinetics 1 Dimensional Heat Transfer Code (PK1D) solves the point kinetics equations and has essentially the same heat-transfer treatment as SAK. PK1D can address extended reactor transients with minimal computer execution time

  11. Sakārtojuma nevienādības

    OpenAIRE

    Popmane, Daiga

    2008-01-01

    Darbā tiek apskatīta viena no nevienādību teorijas sastāvdaļām – sakārtojuma nevienādības, kā arī daži to lietojumi. Darbā ir aplūkoti arī vairāki uzdevumi no dažādu gadu matemātikas olimpiādēm.

  12. Katrin Kuldma - obladatelnitsa "Zolotoi iglõ" / Olga Grigorjeva

    Index Scriptorium Estoniae

    Grigorjeva, Olga, 1983-

    2007-01-01

    FIBIT-i moepäevadest ja Kuldnõela galast. Kuldnõela nominendid olid Reet Aus, Katrin Kuldma, Marika Siska ja Tiiu Roosma. 2006. a. moepreemia "Kuldnõel" sai kollektsiooni "Chocolat" eest Katrin Kuldma

  13. LAr instrumentation for Gerda phase II

    Energy Technology Data Exchange (ETDEWEB)

    Wegmann, Anne [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    Gerda is an experiment to search for the neutrinoless double beta decay of {sup 76}Ge. Results of Phase I have been published in summer 2013. Currently the commissioning of Gerda Phase II is ongoing. To reach the aspired background index of ≤10{sup -3} cts/(keV.kg.yr) active background-suppression techniques will be applied, including an active liquid argon veto (LAr veto). It has been demonstrated by the LArGe test facility that the detection of argon scintillation light can be used to effectively suppress background events in the germanium, which simultaneously deposit energy in LAr. The light instrumentation consisting of photomultiplier tubes (PMT) and wavelength-shifting fibers connected to silicon multipliers (SiPM) has been installed in Gerda. In this talk the low background design of the LAr veto and its performance during the commissioning runs are reported.

  14. Experience from operating germanium detectors in GERDA

    Science.gov (United States)

    Palioselitis, Dimitrios; GERDA Collaboration

    2015-05-01

    Phase I of the Germanium Detector Array (GERDA) experiment, searching for the neutrinoless double beta (0νββ) decay of 76Ge, was completed in September 2013. The most competitive half-life lower limit for the 0νββ decay of 76Ge was set (T-0ν1/2 > 2.1 · 1025 yr at 90% C.L.). GERDA operates bare Ge diodes immersed in liquid argon. During Phase I, mainly refurbished semi-coaxial high purity Ge detectors from previous experiments were used. The experience gained with handling and operating bare Ge diodes in liquid argon, as well as the stability and performance of the detectors during GERDA Phase I are presented. Thirty additional new enriched BEGe-type detectors were produced and will be used in Phase II. A subgroup of these detectors has already been used successfully in GERDA Phase I. The present paper gives an overview of the production chain of the new germanium detectors, the steps taken to minimise the exposure to cosmic radiation during manufacturing, and the first results of characterisation measurements in vacuum cryostats.

  15. Experience from operating germanium detectors in GERDA

    International Nuclear Information System (INIS)

    Palioselitis, Dimitrios

    2015-01-01

    Phase I of the Germanium Detector Array (GERDA) experiment, searching for the neutrinoless double beta (0νββ) decay of 76 Ge, was completed in September 2013. The most competitive half-life lower limit for the 0νββ decay of 76 Ge was set (T- 0ν 1/2 > 2.1 · 10 25 yr at 90% C.L.). GERDA operates bare Ge diodes immersed in liquid argon. During Phase I, mainly refurbished semi-coaxial high purity Ge detectors from previous experiments were used. The experience gained with handling and operating bare Ge diodes in liquid argon, as well as the stability and performance of the detectors during GERDA Phase I are presented. Thirty additional new enriched BEGe-type detectors were produced and will be used in Phase II. A subgroup of these detectors has already been used successfully in GERDA Phase I. The present paper gives an overview of the production chain of the new germanium detectors, the steps taken to minimise the exposure to cosmic radiation during manufacturing, and the first results of characterisation measurements in vacuum cryostats. (paper)

  16. The GERDA experiment: results and perspectives

    Science.gov (United States)

    Macolino, Carla; Gerda Collaboration

    2014-11-01

    The Germanium Detector Array, GERDA, at Laboratori Nazionali del Gran Sasso (Italy), is designed to search for Majorana neutrinos via neutrinoless double beta (0νββ) decay of 76Ge. GERDA completed the Phase I in 2013, after an exposure of 21.6 kg·yr and with a background of about 0.01 cts/(keVkgyr): no signal was found and a limit on the half-life of T0ν1/2 > 2.1 · 1025 yr (90% C.L.) was established. The previous claim of 0νββ observation for 76Ge is strongly disfavoured in a model independent way. The commission for GERDA Phase II is currently ongoing and about 20 kg of additional enriched Ge diodes will be deployed. Pulse- shape analysis, together with the liquid argon instrumentation will allow to reach a background level one order of magnitude lower than in Phase I. In this paper the measurement of the half-life of 0νββ decay from GERDA Phase I and the expected sensitivity for Phase II are discussed.

  17. Kognitiivsete ja metakognitiivsete õpistrateegiate toetamine tehnoloogiaga tõhustatud keeleõppes / Katrin Saks, Äli Leijen

    Index Scriptorium Estoniae

    Saks, Katrin, 1968-

    2015-01-01

    Tehnoloogiliste vahenditega tõhustatud võõrkeelekursuse raames välja töötatud sekkumisest, mis võimaldab õpetajal parimal moel toetada õppijate kognitiivseid ja metakognitiivseid keele- õppestrateegiaid

  18. Status report of the GERDA experiment phase I

    International Nuclear Information System (INIS)

    Riboldi, Stefano

    2013-01-01

    Phase I of GERDA, aimed at investigating neutrino-less double beta decay of 76 Ge is in the active phase since November 2011 at the Gran Sasso National Laboratory of INFN—Italy. GERDA Ge detectors are non-encapsulated and operate immersed in liquid argon, equipped with a front-end readout electronics consisting of cryogenic charge sensitive preamplifiers designed and manufactured to cope with the characteristics of the GERDA experiment (radio-purity, long and resistive cables, etc.). The presentation will report on the current status of the GERDA experiment phase I, focusing on Ge detectors performance in terms of energy resolution, stability over time, counting rate and related issues

  19. Status report of the GERDA experiment phase I

    Science.gov (United States)

    Riboldi, Stefano; Gerda Collaboration

    2013-08-01

    Phase I of GERDA, aimed at investigating neutrino-less double beta decay of 76Ge is in the active phase since November 2011 at the Gran Sasso National Laboratory of INFN-Italy. GERDA Ge detectors are non-encapsulated and operate immersed in liquid argon, equipped with a front-end readout electronics consisting of cryogenic charge sensitive preamplifiers designed and manufactured to cope with the characteristics of the GERDA experiment (radio-purity, long and resistive cables, etc.). The presentation will report on the current status of the GERDA experiment phase I, focusing on Ge detectors performance in terms of energy resolution, stability over time, counting rate and related issues.

  20. Background characterization for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Becerici-Schmidt, Neslihan [Max-Planck-Institut fuer Physik, Muenchen (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    The GERmanium Detector Array (Gerda) experiment at the LNGS laboratory of INFN searches for the neutrinoless double beta (0νββ) decay of {sup 76}Ge. A discovery of this decay can greatly advance our knowledge on the nature and properties of neutrinos. The current best limit on the half-life of {sup 76}Ge 0νββ decay is 1.9 . 10{sup 25} years (90% C.L.). In order to increase the sensitivity on the half-life with respect to past experiments, the background rate in the energy region of interest (ROI) around Q{sub ββ} = 2039 keV has been reduced by a factor 10. Gerda started data-taking with the full set of Phase I detectors in November 2011. Identification of the background in the first phase of the experiment is of major importance to further mitigate the background for Gerda Phase II. An analysis of the Phase I data resulted in a good understanding of the individual components in the Gerda background spectrum. The background components in the ROI have been identified to be mainly due to β- and γ-induced events originating from {sup 214}Bi ({sup 238}U-series), {sup 208}Tl ({sup 232}Th-series), {sup 42}K (progeny of {sup 42}Ar) and α-induced events coming from isotopes in the {sup 226}Ra decay chain. A background decomposition in the ROI will be presented, with a special emphasis on the contribution from α-induced events.

  1. Analysis of KATRIN data using Bayesian inference

    DEFF Research Database (Denmark)

    Riis, Anna Sejersen; Hannestad, Steen; Weinheimer, Christian

    2011-01-01

    The KATRIN (KArlsruhe TRItium Neutrino) experiment will be analyzing the tritium beta-spectrum to determine the mass of the neutrino with a sensitivity of 0.2 eV (90% C.L.). This approach to a measurement of the absolute value of the neutrino mass relies only on the principle of energy conservation...

  2. Status of the GERDA Phase II upgrade

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Victoria [Max-Planck-Insitut für Kernphysik, Heidelberg (Germany)

    2016-06-21

    The GERDA experiment is designed to search for neutrinoless double beta (0νββ) decay of {sup 76}Ge. In Phase I of the experiment a background index of 10{sup −2} cts/(keV·kg·yr) was reached. A lower limit on the half-life of the 0νββ decay of {sup 76}Ge was set to 2.1·10{sup 25} yr (at 90% C.L.). The aim of Phase II is to reach a sensitivity of the half-life of about 10{sup 26} yr. To increase the exposure thirty new Broad Energy Germanium (BEGe) detectors have been produced. These detectors are distinct for their improved energy resolution and enhanced pulse shape discrimination of signal from background events. Further background reduction will be reached by a light instrumentation to read out argon scintillation light. In April 2015 the light instrumentation together with eight BEGe detectors has been successfully deployed in the GERDA cryostat. In a commissioning run it was shown that two of the major background components, external γ-rays from {sup 214}Bi and {sup 208}Tl decays, were suppressed up to two orders of magnitude. We are confident to reach a background index of 10{sup −3} cts/(keV·kg·yr) which is the design goal for GERDA Phase II.

  3. Status of the Gerda phase II experiment

    Energy Technology Data Exchange (ETDEWEB)

    Lazzaro, Andrea [Physik-Department and Excellence Cluster Universe, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    The Gerda experiment searches for the neutrinoless double beta decay (0νββ) in {sup 76}Ge. The first phase of the experiment collected 21.6 kg. yr of exposure with a background index (BI) of 0.01 cts/(keV . kg . yr). No signal was observed and a lower limit for the 0νββ half-life was set to T{sup 0νββ}{sub 1/2} < 2.1 . 10{sup 25} yr (90% C.L). The apparatus has now been upgraded to the Phase II configuration. In Phase II 38 kg of HPGe detectors will be operated to reach an exposure of 100 kg . yr. The goal of Gerda Phase II is to lower the BI to 10{sup -3} cts/(keV . kg . y), in order to reach the sensitivity for T{sup 0νββ}{sub 1/2} = O(10{sup 26}) yr. The additional target mass is constituted of 30 custom made BEGe detectors with higher energy resolution and better pulse shape discrimination performance. The detectors are operated in new radio-pure low-mass holders. The liquid argon surrounding the detectors has been instrumented to veto the background events which produce scintillation light. In this talk the current status and the performance of the Gerda Phase II are presented.

  4. Status of the GERDA Phase II upgrade

    Science.gov (United States)

    Wagner, Victoria

    2016-06-01

    The GERDA experiment is designed to search for neutrinoless double beta (0νββ) decay of 76Ge. In Phase I of the experiment a background index of 10-2 cts/(keV.kg.yr) was reached. A lower limit on the half-life of the 0νββ decay of 76Ge was set to 2.1.1025 yr (at 90% C.L.). The aim of Phase II is to reach a sensitivity of the half-life of about 1026 yr. To increase the exposure thirty new Broad Energy Germanium (BEGe) detectors have been produced. These detectors are distinct for their improved energy resolution and enhanced pulse shape discrimination of signal from background events. Further background reduction will be reached by a light instrumentation to read out argon scintillation light. In April 2015 the light instrumentation together with eight BEGe detectors has been successfully deployed in the GERDA cryostat. In a commissioning run it was shown that two of the major background components, external γ-rays from 214Bi and 208Tl decays, were suppressed up to two orders of magnitude. We are confident to reach a background index of 10-3 cts/(keV.kg.yr) which is the design goal for GERDA Phase II.

  5. Status of the GERDA Phase II upgrade

    International Nuclear Information System (INIS)

    Wagner, Victoria

    2016-01-01

    The GERDA experiment is designed to search for neutrinoless double beta (0νββ) decay of "7"6Ge. In Phase I of the experiment a background index of 10"−"2 cts/(keV·kg·yr) was reached. A lower limit on the half-life of the 0νββ decay of "7"6Ge was set to 2.1·10"2"5 yr (at 90% C.L.). The aim of Phase II is to reach a sensitivity of the half-life of about 10"2"6 yr. To increase the exposure thirty new Broad Energy Germanium (BEGe) detectors have been produced. These detectors are distinct for their improved energy resolution and enhanced pulse shape discrimination of signal from background events. Further background reduction will be reached by a light instrumentation to read out argon scintillation light. In April 2015 the light instrumentation together with eight BEGe detectors has been successfully deployed in the GERDA cryostat. In a commissioning run it was shown that two of the major background components, external γ-rays from "2"1"4Bi and "2"0"8Tl decays, were suppressed up to two orders of magnitude. We are confident to reach a background index of 10"−"3 cts/(keV·kg·yr) which is the design goal for GERDA Phase II.

  6. Neutrinoless double beta decay in Gerda

    Science.gov (United States)

    Grabmayr, Peter; Gerda Collaboration

    2015-10-01

    The Germanium Detector Array (Gerda) experiment searches for the neutrinoless double beta decay in 76Ge. This lepton number violating process is predicted by extensions of the standard model. Gerda follows a staged approach by increasing mass and lowering the background level from phase to phase. Gerda is setup at the Gran Sasso underground laboratory of INFN, Italy. An array of high-purity germanium detectors is lowered directly in liquid argon for shielding and cooling. Further background reduction is achieved by an instrumented water buffer. In Phase I an exposure of 21.6 kg yr was collected at a background level of 10-2 cts/(keV kg yr). The lower limit on the half-life of 76Ge > 2 . 1 .1025 yr (90% C.L.) has been published. Further analyses search for decay into excited states or the accompanied Majoron decay. Presently, Phase II is in preparation which intends to reach a background level of 10-3 cts/(keV kg yr) and to increase the exposure to 100 kg yr. About 20 kg of novel thick-window BEGe (Broad Energy Germanium) detectors will be added and the liquid argon will be instrumented. The status of Phase II preparation and results from the commissioning runs will be presented as well as some further results from Phase I.

  7. Collection of $^{83}$Rb at low implantation energy for KATRIN

    CERN Multimedia

    Zboril, M

    KATRIN, the KArlsruhe TRItium Neutrino experiment aims to measure the neutrino mass by spectroscopy of the tritium $\\beta$-decay at the endpoint by means of Magnetic Adiabatic Collimation combined with an Electrostatic filter (MAC-E filter). To monitor the HV-system of the KATRIN-setup, we would need one or two $^{83}$Rb sources roughly every half a year.

  8. Lifestyle / Tuuli Köller, Katrin Koov

    Index Scriptorium Estoniae

    Köller, Tuuli

    2005-01-01

    13.-17. X 2004 Jõesuus Põhjamaade Ehitusakadeemia V Sügispäevade raames toimunud rahvusvahelisest workshop'ist "Lifestyle", mille eestipoolne põhikorraldaja oli AB Sadakond, kaasa aitas Kavakava, toetas Eesti Kunstiakadeemia. Osalesid arhitektid, kunstnikud, arhitektuuri- ja kunstiüliõpilased Soomest, Rootsist, Saksamaalt ja Itaaliast. Keskenduti kolhoosiarhitektuurile. Katrin Koovi, Siiri Vallneri ja Kaire Nõmme, Rene Valneri ja Kalle Komissarovi jt. töödest

  9. Shielding of the GERDA experiment against external gamma background

    International Nuclear Information System (INIS)

    Barabanov, I.; Bezrukov, L.; Demidova, E.; Gurentsov, V.; Kianovsky, S.; Knoepfle, K.T.; Kornouhkov, V.; Schwingenheuer, B.; Vasenko, A.

    2009-01-01

    The GERmanium Detector Array (GERDA) experiment will search for neutrinoless double beta decay of 76 Ge and is currently under construction at the INFN Laboratori Nazionali del Gran Sasso (LNGS) in Italy. The basic design of GERDA is the use of cryogenic liquid and water of high purity as a superior shield against the hitherto dominant background from external gamma radiation. In this paper we show by Monte Carlo simulations and analytical calculations how GERDA was designed to suppress this background at Q ββ ( 76 Ge)=2039keV to a level of about 10 -4 cts/(keVkgy).

  10. Performance of GERDA phase II BEGe detectors

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Victoria [Max-Planck Institut fuer Kernphysik (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    The GERDA experiment searches for the lepton number violating neutrinoless double beta (0νββ) decay of {sup 76}Ge. GERDA uses HPGe detectors enriched in {sup 76}Ge as source and detection material. The experiment proceeds in two phases. In Phase I a background index of 10{sup -2} cts/(keV.kg.yr) was reached and a new lower limit on the half-life of the 0νββ decay of {sup 76}Ge was set to 2.1.10{sup 25} yr (at 95% C.L.). In Phase II the background index will be lowered by an order of magnitude and a sensitivity of 10{sup 26} yr will be reached. In order to achieve this goal 30 new custom-made broad energy germanium (BEGe) detectors and a liquid argon scintillation light veto will be deployed. Five BEGe detectors have been operated successfully in Phase I and demonstrated their improved energy resolution and enhanced pulse shape discrimination (PSD) against background events. Special designed electronics will further improve energy resolution and PSD performance. The first results from commissioning of the new BEGe detectors are presented in this talk.

  11. GERDA: Recent results and future plans

    Science.gov (United States)

    Lehnert, Björn

    2014-04-01

    The GERmanium Detector Array (GERDA) is an experiment designed to investigate the neutrinoless double beta decay (0 νββ) in 76Ge. An array of high purity germanium detectors isotopically enriched to 87% of 76Ge is operated within 64 m3 of liquid argon (LAr) at the Laboratori Nazionali del Gran Sasso (LNGS). The experiment aims to explore the 0 νββ half-life up to 1.4×1026 yr with a collected exposure of 100 kg yr separated into two physics phases. The data taking of Phase I started in November 2011 and finished in May 2013 with 21.6 kg yr of exposure and a background index (BI) of 2×10-2cts/(kg yr keV) around the Q-value of 2039 keV before pulse shape cuts. Phase II of the experiment is being prepared with additional 30 Broad Energy Germanium (BEGe) detectors and an instrumentation of the LAr, aiming at a BI reduction by a factor of 10 w.r. to Phase I. This paper will present the GERDA setup and the latest results of the experiment including a new measurement of the 2 νββ spectrum of 76Ge and the decomposition of the background spectrum. The 0 νββ analysis, finished in the meanwhile, will be briefly mentioned. Furthermore, the major improvements planned for Phase II will be discussed.

  12. GERDA: Recent results and future plans

    Energy Technology Data Exchange (ETDEWEB)

    Lehnert, Björn, E-mail: bjoernlehnert@gmail.com

    2014-04-01

    The GERmanium Detector Array (GERDA) is an experiment designed to investigate the neutrinoless double beta decay (0νββ) in {sup 76}Ge. An array of high purity germanium detectors isotopically enriched to 87% of {sup 76}Ge is operated within 64 m{sup 3} of liquid argon (LAr) at the Laboratori Nazionali del Gran Sasso (LNGS). The experiment aims to explore the 0νββ half-life up to 1.4×10{sup 26} yr with a collected exposure of 100 kg yr separated into two physics phases. The data taking of Phase I started in November 2011 and finished in May 2013 with 21.6 kg yr of exposure and a background index (BI) of 2×10{sup −2}cts/(kg yr keV) around the Q-value of 2039 keV before pulse shape cuts. Phase II of the experiment is being prepared with additional 30 Broad Energy Germanium (BEGe) detectors and an instrumentation of the LAr, aiming at a BI reduction by a factor of 10 w.r. to Phase I. This paper will present the GERDA setup and the latest results of the experiment including a new measurement of the 2νββ spectrum of {sup 76}Ge and the decomposition of the background spectrum. The 0νββ analysis, finished in the meanwhile, will be briefly mentioned. Furthermore, the major improvements planned for Phase II will be discussed.

  13. Malenkaja Gerda, spassaja Kaja, begala v muzei / Oleg Peranov

    Index Scriptorium Estoniae

    Peranov, Oleg

    2005-01-01

    Muinasjutufilm H.C. Anderseni järgi "Lumekuninganna" ("Snezhnaja koroleva") : stsenarist Jevgeni Shvarts : režissöör Gennadi Kazanski : Gerda osas 13-aastane Jelena Proklova : NSV Liit (Lenfilm) 1966. Filmivõtetest

  14. Status report of the GERDA experiment phase I

    Energy Technology Data Exchange (ETDEWEB)

    Riboldi, Stefano, E-mail: stefano.riboldi@mi.infn.it [Universita' degli Studi di Milano and INFN, Milano (Italy)

    2013-08-01

    Phase I of GERDA, aimed at investigating neutrino-less double beta decay of {sup 76}Ge is in the active phase since November 2011 at the Gran Sasso National Laboratory of INFN—Italy. GERDA Ge detectors are non-encapsulated and operate immersed in liquid argon, equipped with a front-end readout electronics consisting of cryogenic charge sensitive preamplifiers designed and manufactured to cope with the characteristics of the GERDA experiment (radio-purity, long and resistive cables, etc.). The presentation will report on the current status of the GERDA experiment phase I, focusing on Ge detectors performance in terms of energy resolution, stability over time, counting rate and related issues.

  15. Search for neutrinoless double beta decay beyond GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Schwingenheuer, Bernhard [MPI Kernphysik, Heidelberg (Germany)

    2016-07-01

    The search for neutrinoless double beta decay might be the only window to observe lepton number violation and to determine the nature of neutrinos. Is is therefore considered to be of highest relevance. The isotope Ge-76 has historically been most important for this search and the ongoing experiment GERDA has the lowest background of all experiments in the field. The proposed experimental program beyond GERDA (and Majorana) is presented.

  16. LArGe. A liquid argon scintillation veto for GERDA

    International Nuclear Information System (INIS)

    Heisel, Mark

    2011-01-01

    LArGe is a GERDA low-background test facility to study novel background suppression methods in a low-background environment, for possible applications in the GERDA experiment. GERDA searches for the neutrinoless double-beta decay in 76 Ge, by operating naked germanium detectors submersed into 65 m 3 of liquid argon. Similarly, LArGe runs Ge-detectors in 1 m 3 (1.4 tons) of liquid argon, which in addition is instrumented with photomultipliers to detect argon scintillation light. The light is used in anti-coincidence with the germanium detectors, to effectively suppress background events that deposit energy in the liquid argon. This work adresses the design, construction, and commissioning of LArGe. The background suppression efficiency has been studied in combination with a pulse shape discrimination (PSD) technique for various sources, which represent characteristic backgrounds to GERDA. Suppression factors of a few times 10 3 have been achieved. First background data of LArGe (without PSD) yield a background index of (0.12-4.6).10 -2 cts/(keV.kg.y) (90% c.l.), which is at the level of the Gerda phase I design goal. Furthermore, for the first time we measure the natural 42 Ar abundance (in parallel to Gerda), and have indication for the 2νββ-decay in natural germanium. (orig.)

  17. LArGe. A liquid argon scintillation veto for GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Heisel, Mark

    2011-04-13

    LArGe is a GERDA low-background test facility to study novel background suppression methods in a low-background environment, for possible applications in the GERDA experiment. GERDA searches for the neutrinoless double-beta decay in {sup 76}Ge, by operating naked germanium detectors submersed into 65 m{sup 3} of liquid argon. Similarly, LArGe runs Ge-detectors in 1 m{sup 3} (1.4 tons) of liquid argon, which in addition is instrumented with photomultipliers to detect argon scintillation light. The light is used in anti-coincidence with the germanium detectors, to effectively suppress background events that deposit energy in the liquid argon. This work adresses the design, construction, and commissioning of LArGe. The background suppression efficiency has been studied in combination with a pulse shape discrimination (PSD) technique for various sources, which represent characteristic backgrounds to GERDA. Suppression factors of a few times 10{sup 3} have been achieved. First background data of LArGe (without PSD) yield a background index of (0.12-4.6).10{sup -2} cts/(keV.kg.y) (90% c.l.), which is at the level of the Gerda phase I design goal. Furthermore, for the first time we measure the natural {sup 42}Ar abundance (in parallel to Gerda), and have indication for the 2{nu}{beta}{beta}-decay in natural germanium. (orig.)

  18. Dose-effective investigation of intraarterial r-Sak in canine model with acute cerebral infarctions

    International Nuclear Information System (INIS)

    Liu Sheng; Shi Haibin; Zhang Peng; Wang Chenghu; Zhou Chunguo; Li Linsun

    2007-01-01

    Objective: To compare the effect and complications of intraarterial thrombolysis with different doses of recombinant-staphylokinase (r-Sak) in canine model with acute cerebral infarction, and then to find out the most properly appropriate effective dose. Methods: The model with left cerebral embolism was established with interventional technique in 24 beagle adult dogs. They were randomly divided into 4 groups including control group(saline, 10 ml), group of low dose(r-Sak, 5 000 u/kg), middle dose(r-Sak, 10 000 u/kg) and high dose(r-Sak, 20 000 u/kg). Angiography and intraarterial thrombolysis were performed within 30 minutes after the embolization. Microcatheter was superselectively inserted into left carotid artery. Five hour's later with a repeated angiography at half, 1 and 2 hours after thrombolysis to observe the recanalization. Blood samples were collected at a series of time pre-and post-thrombolysis to test the plasma levels of PT, APTT and D-dimer. These canines were sacrificed, and their cerebri were taken out for pathologic study by the end of 24 hours. Results: The rates of efficacy within 2 hours after thrombolysis were 10.0% (1/10) in control group, 40.0% (4/10) in low dose group, 90.9% (10/11) in middle dose group and 100% (9/9) in high dose group. The rates of complete recanalization were 0, 10% (1/10), 36.4% (4/11) and 66.7% (6/9), correspondingly and respectively. There were statistically obvious differences between the 3 groups (P 0.05). Death occurred in 1 canine(high dose group) within 24 hours after thrombolysis with hemorrhagic lesion in parietal lobe of brain. No other severe complications ocurred. Conclusions: (1) Intraarterial thrombolysis with r-Sak within 5 hours after onset of thrombosis is effective and feasible. Intraarterial r-Sak shows strong thrombolytic effect for white thrombus including a few platelets. There is relative high rate of recanalization with no less than 10 000U/kg of r-Sak but accompanied with high risk of

  19. First results from GERDA Phase II

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-09-01

    Gerda is designed for a background-free search of 76Ge neutrinoless double-β decay, using bare Ge detectors in liquid Ar. The experiment was upgraded after the successful completion of Phase I to double the target mass and further reduce the background. Newly-designed Ge detectors were installed along with LAr scintillation sensors. Phase II of data-taking started in Dec 2015 with approximately 36 kg of Ge detectors and is currently ongoing. The first results based on 10.8 kg· yr of exposure are presented. The background goal of 10-3 cts/(keV· kg· yr) is achieved and a search for neutrinoless double-β decay is performed by combining Phase I and II data. No signal is found and a new limit is set at T1/20ν > 5.3 \\cdot {1025} yr (90% C.L.).

  20. The Gerda Phase II detector assembly

    Energy Technology Data Exchange (ETDEWEB)

    Bode, Tobias; Schoenert, Stefan [Physik-Department E15, Technische Universitaet Muenchen (Germany); Schwingenheuer, Bernhard [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    Phase II of the Gerda (Germanium Detector Array) experiment will continue the search for the neutrinoless double beta decay (0νββ) of {sup 76}Ge. Prerequisites for Phase II are an increased target mass and a reduced background index of < 10 {sup -3} cts/(keV.kg.yr). Major hardware upgrades to achieve these requirements are scheduled for 2013. They include the deployment of a new radio pure low mass detector assembly. The structural properties of available radio-pure materials and reduction of mass necessitate a change of the electrical contacting used to bias and read-out the detectors. The detector assembly design and the favored contacting solution are presented.

  1. Background modeling for the GERDA experiment

    Science.gov (United States)

    Becerici-Schmidt, N.; Gerda Collaboration

    2013-08-01

    The neutrinoless double beta (0νββ) decay experiment GERDA at the LNGS of INFN has started physics data taking in November 2011. This paper presents an analysis aimed at understanding and modeling the observed background energy spectrum, which plays an essential role in searches for a rare signal like 0νββ decay. A very promising preliminary model has been obtained, with the systematic uncertainties still under study. Important information can be deduced from the model such as the expected background and its decomposition in the signal region. According to the model the main background contributions around Qββ come from 214Bi, 228Th, 42K, 60Co and α emitting isotopes in the 226Ra decay chain, with a fraction depending on the assumed source positions.

  2. Background modeling for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Becerici-Schmidt, N. [Max-Planck-Institut für Physik, München (Germany); Collaboration: GERDA Collaboration

    2013-08-08

    The neutrinoless double beta (0νββ) decay experiment GERDA at the LNGS of INFN has started physics data taking in November 2011. This paper presents an analysis aimed at understanding and modeling the observed background energy spectrum, which plays an essential role in searches for a rare signal like 0νββ decay. A very promising preliminary model has been obtained, with the systematic uncertainties still under study. Important information can be deduced from the model such as the expected background and its decomposition in the signal region. According to the model the main background contributions around Q{sub ββ} come from {sup 214}Bi, {sup 228}Th, {sup 42}K, {sup 60}Co and α emitting isotopes in the {sup 226}Ra decay chain, with a fraction depending on the assumed source positions.

  3. Kalalaev Katrin jääbki kadunuks / Kadi Laid

    Index Scriptorium Estoniae

    Laid, Kadi, 1976-

    2003-01-01

    Politsei lõpetab kalalaeva Katrin huku uurimise, kuna vaatamata korduvatele sukeldumistele, ei ole suudetud laevavrakki leida. Laeva kindlustanud Bico-Leks Kindlustuse AS-i järglane ERGO Kindlustus peab omanikule kindlustusraha välja maksma

  4. PENGARUH PEMBELAJARAN AKUNTANSI BERBASIS SAK IFRS DAN SELF-EFFICACY TERHADAP KESIAPAN MAHASISWA MENJADI GURU AKUNTANSI

    Directory of Open Access Journals (Sweden)

    Raeni Raeni

    2013-06-01

    Full Text Available The research was inspired by students’ readiness to be Accounting teachers with the rapid progress of science and technology and also free-market for workers. The objective of the study was to test the influence of Accounting learning based on SAK IFRS and self-efficacy toward students’ readiness to be Accounting teachers. The population of the research were Accounting education students in classess of 2010 until 2012. Thus, it used proportionate stratified random sampling. The respondents were 85 students in class 2010, 123 students in class 2011 and 154 students in class 2012. Then, the data were analyzed by percentage descriptive and doubled linear regression. The result of regression analysis showed that 1 Accounting learning based on SAK IFRS and self-efficacy contibuted positively and significantly for 52.4% toward students’ readiness to be Accounting students, 2 there was a positive and significant influence of Accounting learning based on SAK IFRS for 26.2% toward students’ readiness to be Accounting teachers, 3 there was a positive and significant influence of self-efficacy for 16.32% toward students’ readiness to be Accounting teachers. The familiarity level for learning Accounting based on SAK IFRS was high with the progress of science and technology and also full adoption from IFRS.

  5. PENGARUH PEMBELAJARAN AKUNTANSI BERBASIS SAK IFRS DAN SELF-EFFICACY TERHADAP KESIAPAN MAHASISWA MENJADI GURU AKUNTANSI

    Directory of Open Access Journals (Sweden)

    Raeni Raeni

    2016-01-01

    Full Text Available The research was inspired by students’ readiness to be Accounting teachers with the rapid progress of science and technology and also free-market for workers. The objective of the study was to test the influence of Accounting learning based on SAK IFRS and self-efficacy toward students’ readiness to be Accounting teachers. The population of the research were Accounting education students in classess of 2010 until 2012. Thus, it used proportionate stratified random sampling. The respondents were 85 students in class 2010, 123 students in class 2011 and 154 students in class 2012. Then, the data were analyzed by percentage descriptive and doubled linear regression. The result of regression analysis showed that 1 Accounting learning based on SAK IFRS and self-efficacy contibuted positively and significantly for 52.4% toward students’ readiness to be Accounting students, 2 there was a positive and significant influence of Accounting learning based on SAK IFRS for 26.2% toward students’ readiness to be Accounting teachers, 3 there was a positive and significant influence of self-efficacy for 16.32% toward students’ readiness to be Accounting teachers. The familiarity level for learning Accounting based on SAK IFRS was high with the progress of science and technology and also full adoption from IFRS.

  6. RELAP5/MOD2 blind calculation of GERDA small break test and data comparison

    International Nuclear Information System (INIS)

    Ogden, D.M.; Steiner, J.L.; Waterman, M.E.

    1985-01-01

    The Idaho National Engineering Laboratory (INEL), in support of the USNRC, has developed a RELAP5/MOD2 model of the GERDA facility to be used for analysis of the GERDA data, particularly relative to the phenomena of natural circulation and the boiler condenser mode of heat transfer. A blind calculation of GERDA Test 1605AA and a preliminary comparison with experimental data has been performed. The GERDA facility is a single loop integral facility with an electrically heated core. A general arrangement diagram of the facility is shown. The GERDA facility was designed for the performance of both separate effects and overall systems tests

  7. Upgrade for Phase II of the Gerda experiment

    Science.gov (United States)

    Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaïdic, Y.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Nisi, S.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Ransom, C.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.

    2018-05-01

    The Gerda collaboration is performing a sensitive search for neutrinoless double beta decay of ^{76}Ge at the INFN Laboratori Nazionali del Gran Sasso, Italy. The upgrade of the Gerda experiment from Phase I to Phase II has been concluded in December 2015. The first Phase II data release shows that the goal to suppress the background by one order of magnitude compared to Phase I has been achieved. Gerda is thus the first experiment that will remain "background-free" up to its design exposure (100 kg year). It will reach thereby a half-life sensitivity of more than 10^{26} year within 3 years of data collection. This paper describes in detail the modifications and improvements of the experimental setup for Phase II and discusses the performance of individual detector components.

  8. Performance of the LAr scintillation veto of Gerda Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Wiesinger, Christoph [Physik-Department and Excellence Cluster Universe, Technische Universitaet Muenchen, James-Franck-Strasse, 85748 Garching (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    Gerda is an experiment to search for the neutrinoless double beta decay in {sup 76}Ge. Results of Phase I have been published in summer 2013 and Gerda has been upgraded to Phase II. To reach the aspired background index of ∝10{sup -3} cts/(keV.kg.yr) for Phase II active background-suppression techniques are applied, including an active liquid argon (LAr) veto. It has been demonstrated with the LArGe test facility that the detection of argon scintillation light can be used to effectively suppress background events in the germanium detectors, which simultaneously deposit energy in the LAr. The light instrumentation consisting of photomultiplier tubes (PMT) and wavelength-shifting fibers connected to silicon photomultipliers (SiPM) has been installed in Gerda. In this talk the low background design of the LAr veto and its performance during Phase II start-up is reported.

  9. Performance of the LAr scintillation veto of GERDA Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Wiesinger, Christoph [Technische Universitaet Muenchen, Physik Dept. E15, James-Franck-Strasse, 85748 Garching (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    Gerda is an experiment to search for the neutrinoless double beta decay in {sup 76}Ge. Results of Phase I have been published in summer 2013 and Gerda is upgraded to Phase II. To reach the aspired background index of ≤ 10{sup -3} cts/(keV.kg.yr) for Phase II active background-suppression techniques are applied, including an active liquid argon (LAr) veto. It has been demonstrated with the LArGe test facility that the detection of argon scintillation light can be used to effectively suppress background events in the germanium, which simultaneously deposit energy in the LAr. The light instrumentation consisting of photomultiplier tubes (PMT) and wavelength-shifting fibers connected to silicon multipliers (SiPM) has been installed in Gerda. In this talk the low background design of the LAr veto and its performance during the commissioning runs are reported.

  10. The calibration system of the GERDA muon veto Cherenkov detector

    International Nuclear Information System (INIS)

    Ritter, Florian; Lubsandorzhiev, Bayarto; Freund, Kai; Grabmayr, Peter; Jochum, Josef; Knapp, Markus; Meierhofer, Georg; Shaibonov, Bator

    2010-01-01

    The GERDA experiment searches for neutrinoless double beta decay (0νββ). To achieve a sensitivity of 10 -3 counts/(keVkgy) or better within a specific region of interest (ROI), a good background identification is needed. Therefore GERDA is located in the LNGS (Laboratori Nationali del Gran Sasso) underground facility. In addition to the good rejection of cosmic muons due to the surrounding bedrocks, a dual muon veto system has to be used. For calibration and monitoring of the muon veto, two separate systems have been developed.

  11. Sakīna: contribución a su estudio

    Directory of Open Access Journals (Sweden)

    Tornero, Emilio

    2013-06-01

    Full Text Available This article explores the postkoranic evolution of the term sakīna. First, it examines what previous research has said about that. It then presents, translates, and analizes five texts—which had not been taken into consideration previously— pertaining to the Islamic and philosophical fields in which this term occurs. The texts have been taken from Ibn Ḥabīb, al-Tawḥīdī, the Arabic translation of the Golden Verses, and the two Commentaries on the Golden Verses attributed respectively to Iamblichus and Proclus. The article shows how the Koranic sakīna has evolved in these texts: it connotes pacification of violent animals in Ibn Habib, in al-Tawhidi it denotes a state close to Divinity of characters similar to Sufis: in the Golden Verses, the term sakīna is used to translate daímōn, thanks to which evils originating from innate discord among humans are eliminated; finally, the Commentaries on the Golden Verses contain explanations of this term that are both religious and rationalist.Estudio del término sakīna en su evolución postcoránica en el que se muestra, en primer lugar, lo que la investigación ha dicho sobre él, para, a continuación, presentar, traducir y analizar cinco textos pertenecientes al ámbito islámico y al filosófico en donde aparece dicho término y que no habían sido tenidos en cuenta hasta ahora. Estos textos proceden de: Ibn Ḥabīb, al-Tawḥīdī, traducción árabe de los Versos áureos, y Comentarios de Jámblico y de Proclo a estos Versos áureos. La sakīna coránica evoluciona en estos autores pasando a connotar una pacificación en los animales violentos en Ibn Habib y un estado cercano a la divinidad de caracteres próximos al de los sufíes en al-Tawhidi, mientras que en los Versos áureos se emplea sakīna para traducir daímōn, con sus efectos de eliminación de los males originados por la discordia innata a los hombres. En los Comentarios a los Versos áureos se dan explicaciones, de

  12. A Myb transcription factor of Phytophthora sojae, regulated by MAP kinase PsSAK1, is required for zoospore development.

    Directory of Open Access Journals (Sweden)

    Meng Zhang

    Full Text Available PsSAK1, a mitogen-activated protein (MAP kinase from Phytophthora sojae, plays an important role in host infection and zoospore viability. However, the downstream mechanism of PsSAK1 remains unclear. In this study, the 3'-tag digital gene expression (DGE profiling method was applied to sequence the global transcriptional sequence of PsSAK1-silenced mutants during the cysts stage and 1.5 h after inoculation onto susceptible soybean leaf tissues. Compared with the gene expression levels of the recipient P. sojae strain, several candidates of Myb family were differentially expressed (up or down in response to the loss of PsSAK1, including of a R2R3-type Myb transcription factor, PsMYB1. qRT-PCR indicated that the transcriptional level of PsMYB1 decreased due to PsSAK1 silencing. The transcriptional level of PsMYB1 increased during sporulating hyphae, in germinated cysts, and early infection. Silencing of PsMYB1 results in three phenotypes: a no cleavage of the cytoplasm into uninucleate zoospores or release of normal zoospores, b direct germination of sporangia, and c afunction in zoospore-mediated plant infection. Our data indicate that the PsMYB1 transcription factor functions downstream of MAP kinase PsSAK1 and is required for zoospore development of P. sojae.

  13. Characterisation of GERDA Phase-I detectors in liquid argon

    Energy Technology Data Exchange (ETDEWEB)

    Barnabe Heider, Marik; Schoenert, Stefan [Max-Planck-Institut fuer Kernphysik (Germany); Gusev, Konstantin [Russian Research Center, Kurchatov Institute (Russian Federation); Joint Institute for Nuclear Research (Russian Federation)

    2009-07-01

    GERDA will search for neutrinoless double beta decay in {sup 76}Ge by submerging bare enriched HPGe detectors in liquid argon. In GERDA Phase-I, reprocessed enriched-Ge detectors, which were previously operated by the Heidelberg-Moscow and IGEX collaborations, and reprocessed natural-Ge detectors from Genius-TF, will be redeployed. We have tested the operation and performance of bare HPGe detectors in liquid nitrogen and in liquid argon over more than three years with three non-enriched p-type prototype detectors. The detector handling and mounting procedures have been defined and the Phase-I detector technology, the low-mass assembly and the long-term stability in liquid argon have been tested successfully. The Phase-I detectors were reprocessed by Canberra Semiconductor NV, Olen, according to their standard technology but without the evaporation of a passivation layer. After their reprocessing, the detectors have been mounted in their low-mass holders and their characterisation in liquid argon performed. The leakage current, the counting characteristics and the efficiency of the detectors have been measured. The testing of the detectors was carried out in the liquid argon test stand of the GERDA underground Detector Laboratory (GDL) at LNGS. The detectors are now stored underground under vacuum until their operation in GERDA.

  14. Embracing "All But My Life" by Gerda Weissmann Klein.

    Science.gov (United States)

    Foster, Harold M.

    1997-01-01

    Discusses Gerda Weissmann Klein's book, "All But My Life," which chronicles the author's journey from a normal young (Jewish) woman to a slave in Nazi labor camps for six years. Argues that the book is well written, has characters of depth and complexity, affirms life through the ordeal of the Holocaust, and is a popular book with…

  15. Neutrinoless double beta decay in GERDA Phase II

    International Nuclear Information System (INIS)

    Macolino, C.

    2014-01-01

    The GERmanium Detector Array, GERDA, is designed to search for neutrinoless double beta (0νββ) decay of 76 Ge and it is installed in the Laboratori Nazionali del Gran Sasso (LNGS) of INFN, Italy. The GERDA experiment has completed the Phase I with a total collected exposure of 21.6 kg yr and a background index (BI) of the order of BI ≃ 10 −2 cts/(keVkg yr). No excess of events from 0νββ decay has been observed and a lower limit on the half-life on the 0νββ decay for 76 Ge has been estimated: T 0ν 1 /2 > 2.1·10 25 yr at 90% CL. The goal of GERDA Phase II is to reach the target sensitivity of T 0ν 1 /2 ≃ 1.4 · 10 26 yr, with an increased total mass of the enriched material and a reduced background level. In this paper the results from GERDA Phase I and the major improvements planned for Phase II are discussed.

  16. Results on neutrinoless double beta decay from GERDA phase I

    CERN Multimedia

    CERN. Geneva

    2013-01-01

    After motivating searches of double beta decay and lepton number violation details about the construction, operation and analysis of GERDA will be given. Results of the recently completed phase I of data taking will then be presented and interpreted. Finally an outlook on future plans will be given.

  17. The background in the experiment Gerda

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Andreotti, E.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barnabé Heider, M.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Cossavella, F.; Demidova, E. V.; Domula, A.; Egorov, V.; Falkenstein, R.; Ferella, A.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Guthikonda, K. K.; Hampel, W.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Liu, X.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Machado, A. A.; Majorovits, B.; Maneschg, W.; Nemchenok, I.; Nisi, S.; O'Shaughnessy, C.; Palioselitis, D.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Riboldi, S.; Sada, C.; Salathe, M.; Schmitt, C.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Strecker, H.; Tarka, M.; Ur, C. A.; Vasenko, A. A.; Volynets, O.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2014-04-01

    The GERmanium Detector Array ( Gerda) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double beta () decay of Ge. The signature of the signal is a monoenergetic peak at 2039 keV, the value of the decay. To avoid bias in the signal search, the present analysis does not consider all those events, that fall in a 40 keV wide region centered around . The main parameters needed for the analysis are described. A background model was developed to describe the observed energy spectrum. The model contains several contributions, that are expected on the basis of material screening or that are established by the observation of characteristic structures in the energy spectrum. The model predicts a flat energy spectrum for the blinding window around with a background index ranging from 17.6 to 23.8 cts/(keV kg yr). A part of the data not considered before has been used to test if the predictions of the background model are consistent. The observed number of events in this energy region is consistent with the background model. The background at is dominated by close sources, mainly due to K, Bi, Th, Co and emitting isotopes from the Ra decay chain. The individual fractions depend on the assumed locations of the contaminants. It is shown, that after removal of the known peaks, the energy spectrum can be fitted in an energy range of 200 keV around with a constant background. This gives a background index consistent with the full model and uncertainties of the same size.

  18. Aplikasi Penyusunan Laporan Keuangan Berbasis SAK Etap Pada Bagus Agriseta Mandiri

    Directory of Open Access Journals (Sweden)

    Mega Indah Puspita Sari

    2016-03-01

    Full Text Available The purpose of this study is to analyze the arrangement of existing financial report in Bagus Agriseta Mandiri and to conduct the implementation of financial report arrangement that is suitable with SAK ETAP in UKM Bagus Agriseta Mandiri. In this study, the researcher uses case study or field study research that is aimed to learn intensively on the background of problems, situation and the position of the event occurs in nowadays, to solve the problems occurs in company, also the environmental interaction of current social unit in its way (given. The result of this study shows that company only makes loss and profit report, but in its presentation, it still not appropriate with SAK ETAP and financial balance report, cash flow and company equity is not presented yet because of the company less comprehending the standard of arranging financial report. By the existence of SAK ETAP it is expected to create the uniformity in implementing accounting treatment and the presentation of financial report so that it can result appropriate information toward the need of users.

  19. Germanium detector studies in the framework of the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Budjas, Dusan

    2009-05-06

    The GERmanium Detector Array (GERDA) is an ultra-low background experiment under construction at Laboratori Nazionali del Gran Sasso. GERDA will search for {sup 76}Ge neutrinoless double beta decay with an aim for 100-fold reduction in background compared to predecessor experiments. This ambition necessitates innovative design approaches, strict selection of low-radioactivity materials, and novel techniques for active background suppression. The core feature of GERDA is its array of germanium detectors for ionizing radiation, which are enriched in {sup 76}Ge. Germanium detectors are the central theme of this dissertation. The first part describes the implementation, testing, and optimisation of Monte Carlo simulations of germanium spectrometers, intensively involved in the selection of low-radioactivity materials. The simulations are essential for evaluations of the gamma ray measurements. The second part concerns the development and validation of an active background suppression technique based on germanium detector signal shape analysis. This was performed for the first time using a BEGe-type detector, which features a small read-out electrode. As a result of this work, BEGe is now one of the two detector technologies included in research and development for the second phase of the GERDA experiment. A suppression of major GERDA backgrounds is demonstrated, with (0.93{+-}0.08)% survival probability for events from {sup 60}Co, (21{+-}3)% for {sup 226}Ra, and (40{+-}2)% for {sup 228}Th. The acceptance of {sup 228}Th double escape events, which are analogous to double beta decay, was kept at (89{+-}1)%. (orig.)

  20. Tritium source-related systematic uncertainties of the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Seitz-Moskaliuk, Hendrik [Karlsruher Institut fuer Technologie, Institut fuer experimentelle Kernphysik, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    KATRIN will perform a direct, kinematics-based measurement of the neutrino mass with a sensitivity of 200 meV (90 % C. L.) reached after 3 years of measurement time. The neutrino mass is obtained by determining the shape of the spectrum of tritium β decay electrons close to the endpoint of 18.6 keV with a spectrometer of MAC-E filter type. To achieve the planned sensitivity, the systematic measurement uncertainties have to be carefully controlled and evaluated. Main sources of systematics are the MAC-E filter on the one hand and the source and transport section (STS) on the other hand. Most of the operational parameters of KATRIN have to be stable at or even below the per mille level and have to meet further strict requirements. This talk reviews the KATRIN systematics with a special focus on the STS. Early commissioning measurements to determine the main systematics are introduced.

  1. Role of the Talaromyces marneffei (Penicillium marneffei) sakA gene in nitrosative stress response, conidiation and red pigment production.

    Science.gov (United States)

    Nimmanee, Panjaphorn; Tam, Emily W T; Woo, Patrick C Y; Vanittanakom, Pramote; Vanittanakom, Nongnuch

    2017-04-01

    Stress-activated MAPK pathways are systems used to regulate the stress adaptation of most fungi. It has been shown that in Talaromyces marneffei (Penicillium marneffei), a pathogenic dimorphic fungus, the sakA gene is involved, not only in tolerance against oxidative and heat stresses, but also in playing a role in asexual development, yeast cell generation in vitro and survival inside macrophage cell lines. In this study, the role of the T. marneffei sakA gene on the nitrosative stress response and the regulation of gene expression were investigated. The susceptibility of the sakA mutant to NaNO2 was investigated using drop dilution assay and the expression of genes of interest were determined by RT-PCR, comparing them to the wild-type and complemented strains. The results demonstrated that the T. marneffei sakA gene played a role in the stress response to NaNO2, the expression of genes functioning in conidial development (brlA, abaA and wetA) and red pigment biosynthesis (pks3, rp1, rp2 and rp3). These findings suggest that T. marneffei sakA is broadly involved in a wide variety of cell activities, including stress response, cell morphogenesis, asexual development and pigmentation. © FEMS 2016. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  2. GERDA - a new neutrinoless double beta experiment using 76Ge

    International Nuclear Information System (INIS)

    Meierhofer, G

    2011-01-01

    The search for neutrinoless double beta decay (0νssss) has been a very active field for the last decades. While double beta decay has been observed, 0νssss decay still waits for its experimental proof. The GErmanium Detector Array (GERDA) uses 76 Ge, an ideal candidate as it is acting as source and detector simultaneously. Germanium detectors, isotopically enriched in 76 Ge are submerged directly into an ultra pure cryo liquid, which serves as coolant and radiation shield. This concept will allow to reduce the background by up to two orders of magnitude with respect to earlier experiments. GERDA has been constructed in hall A of the underground laboratory LNGS of the INFN in Italy. The experiment started recently with a test run.

  3. Annual modulation of the muon flux in the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Falkenstein, Raphael; Freund, Kai; Grabmayr, Peter; Hegai, Alexander; Jochum, Josef; Schmitt, Christopher; Schuetz, Ann-Kathrin [Eberhard Karls Univeritaet Tuebingen (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    The Gerda collaboration aims to determine the half life of the neutrinoless double beta decay (0νββ) of {sup 76}Ge. In Phase I, the experimental background was reduced to 10{sup -2} cts/(keV.kg.yr) in the region around Q{sub ββ}. For Phase II we want to reduce the background contribution by one order of magnitude. Cosmic muons induce part of this dangerous background and must be vetoed. The muon veto consists of a water Cherenkov detector with 66 PMTs in the water tank surrounding the Gerda cryostat which contains the germanium crystals. The muon veto operated stably for 806 days where only 2 PMTs were lost. The rate however is modulated by the Cngs neutrino beam and the atmospheric temperature effect, both will be presented in this talk.

  4. Study of the GERDA Phase II background spectrum

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Selivanenko, O.; Shevzik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-09-01

    The Gerda experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN in Italy, searches for the neutrinoless double beta (0νββ) decay of 76Ge. Gerda Phase II is aiming to reach a sensitivity for the 0νββ half life of 1026 yr in ˜ 3 years of physics data taking with 100 kg·yr of exposure and a background index of ˜ 10-3 cts/(keV·kg·yr). After 6 months of acquisition a first data release with 10.8 kg·yr of exposure is performed, showing that the design background is achieved. In this work a study of the Phase II background spectrum, the main spectral structures and the background sources will be presented and discussed.

  5. Performance of BEGe detectors for GERDA Phase II

    Energy Technology Data Exchange (ETDEWEB)

    Lazzaro, Andrea [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    After the end of the data-taking for GERDA Phase I, the apparatus has been upgraded to fulfill the requirements of the second phase. Phase II sensitivity will be driven by 30 custom made BEGe detectors. This detectors are now available and can be operated in phaseII configuration in the GERDA cryostat together with the liquid argon scintillation veto. The performances of BEGe detectors in liquid argon are presented in this talk. Besides the spectroscopy capability, the focus will be placed on the expectations in terms of background rejection via pulse shape discrimination (PSD). In particular the main goal the BEGe's pulse shape analysis is to discriminate surface events produced by beta emitters (e.g. {sup 42}K) present in the liquid Ar.

  6. Status report of the Gerda Phase II startup

    International Nuclear Information System (INIS)

    D’Andrea, Valerio

    2017-01-01

    The GERmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN, searches for 0νββ of "7"6Ge. Germanium diodes enriched to ∼ 86 % in the double beta emitter "7"6Ge ("e"n"rGe) are exposed being both source and detector of 0νββ decay. This process is considered a powerful probe to address still open issues in the neutrino sector of the (beyond) Standard Model of particle Physics. Since 2013, at the completion of the first experimental phase (Phase I), the Gerda setup has been upgraded to perform its next step (Phase II). The aim is to reach a sensitivity to the 0νββ decay half life larger than 10"2"6 yr in about 3 years of physics data taking, exposing a detector mass of about 35 kg of "e"n"rGe with a background index of about 10"−"3cts/(keV·kg·yr). One of the main new implementations is the liquid argon (LAr) scintillation light read-out, to veto those events that only partially deposit their energy both in Ge and in the surrounding LAr. In this paper the Gerda Phase II expected goals, the upgraded items and few selected features from the first 2016 physics and calibration runs will be presented. The main Phase I achievements will be also reviewed.

  7. Status report of the Gerda Phase II startup

    Science.gov (United States)

    D'Andrea, Valerio; Gerda Collaboration

    2017-01-01

    The GERmanium Detector Array (GERDA) experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN, searches for 0νββ of 76Ge . Germanium diodes enriched to ˜ 86 % in the double beta emitter 76Ge ( enrGe are exposed being both source and detector of 0νββ decay. This process is considered a powerful probe to address still open issues in the neutrino sector of the (beyond) Standard Model of particle Physics. Since 2013, at the completion of the first experimental phase (Phase I), the GERDA setup has been upgraded to perform its next step (Phase II). The aim is to reach a sensitivity to the 0νββ decay half-life larger than 10^{26} yr in about 3 years of physics data taking, exposing a detector mass of about 35 kg of enrGe with a background index of about 10^{-3} cts/(keV . kg . yr). One of the main new implementations is the liquid argon (LAr) scintillation light read-out, to veto those events that only partially deposit their energy both in Ge and in the surrounding LAr. In this paper the GERDA Phase II expected goals, the upgraded items and few selected features from the first 2016 physics and calibration runs will be presented. The main Phase I achievements will be also reviewed.

  8. A liquid argon scintillation veto for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Wegmann, Anne [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2014-07-01

    Gerda is an experiment to search for the neutrinoless double beta decay of {sup 76}Ge. Results of Phase I have been published in summer 2013. Currently Gerda is being upgraded to a second phase. To reach the aspired background index of ≤ 10{sup -3} cts/(keV . kg . yr) for Phase II active background-suppression techniques will be applied, including an active liquid argon veto (LAr veto). It has been demonstrated by the LArGe test facility that the detection of argon scintillation light can be used to effectively suppress background events in the germanium, which simultaneously deposit energy in LAr. This talk focusses on the light instrumentation which is being installed in GERDA. Photomultiplier tubes (PMT) and wavelength-shifting fibers connected to silicon photomultipliers (SiPM) are combined to maximize the photoelectron-yield with respect to various background sources. Monte Carlo simulations have been performed to optimize the design for background suppression and low self-induced background. First results of the prototypes and the progress of installation are reported.

  9. Forgotten evidence: A mixed methods study of why sexual assault kits (SAKs) are not submitted for DNA forensic testing.

    Science.gov (United States)

    Campbell, Rebecca; Fehler-Cabral, Giannina; Bybee, Deborah; Shaw, Jessica

    2017-10-01

    Throughout the United States, hundreds of thousands of sexual assault kits (SAKs) (also termed "rape kits") have not been submitted by the police for forensic DNA testing. DNA evidence can help sexual assault investigations and prosecutions by identifying offenders, revealing serial offenders through DNA matches across cases, and exonerating those who have been wrongly accused. In this article, we describe a 5-year action research project conducted with 1 city that had large numbers of untested SAKs-Detroit, Michigan-and our examination into why thousands of rape kits in this city were never submitted for forensic DNA testing. This mixed methods study combined ethnographic observations and qualitative interviews to identify stakeholders' perspectives as to why rape kits were not routinely submitted for testing. Then, we quantitatively examined whether these factors may have affected police practices regarding SAK testing, as evidenced by predictable changes in SAK submission rates over time. Chronic resource scarcity only partially explained why the organizations that serve rape victims-the police, crime lab, prosecution, and victim advocacy-could not test all rape kits, investigate all reported sexual assaults, and support all rape survivors. SAK submission rates significantly increased once criminal justice professionals in this city had full access to the FBI DNA forensic database Combined DNA Index System (CODIS), but even then, most SAKs were still not submitted for DNA testing. Building crime laboratories' capacities for DNA testing and training police on the utility of forensic evidence and best practices in sexual assault investigations can help remedy, and possibly prevent, the problem of untested rape kits. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  10. Kunstnikud hindasid Eesti telekanalite uudistesaateid / Tarmo Luisk, Dan Mikkin, Katrin Kuldma

    Index Scriptorium Estoniae

    Luisk, Tarmo, 1970-

    2011-01-01

    Disainer Tarmo Luisk, graafik Dan Mikkin ja moekunstnik Katrin Kuldma hindasid Eesti telekanalite uudistesaateid "Aktuaalne kaamera" (ETV), "Reporter" (Kanal 2) ja "Seitsmesed uudised"(TV 3) esteetilisest vaatepunktist

  11. Why is the conclusion of the Gerda experiment not justified

    Science.gov (United States)

    Klapdor-Kleingrothaus, H. V.; Krivosheina, I. V.

    2013-12-01

    The first results of the GERDA double beta experiment in Gran Sasso were recently presented. They are fully consistent with the HEIDELBERG-MOSCOW experiment, but because of its low statistics cannot proof anything at this moment. It is no surprise that the statistics is still far from being able to test the signal claimed by the HEIDELBERG-MOSCOW experiment. The energy resolution of the coaxial detectors is a factor of 1.5 worse than in the HEIDELBERG-MOSCOW experiment. The original goal of background reduction to 10-2 counts/kg y keV, or by an order of magnitude compared to the HEIDELBERG-MOSCOW experiment, has not been reached. The background is only a factor 2.3 lower if we refer it to the experimental line width, i.e. in units counts/kg y energy resolution. With pulse shape analysis ( PSA) the back-ground in the HEIDELBERG-MOSCOW experiment around Q ββ is 4 × 10-3 counts/kg y keV [1], which is a factor of 4 (5 referring to the line width) lower than that of GERDA with pulse shape analysis. The amount of enriched material used in the GERDA measurement is 14.6 kg, only a factor of 1.34 larger than that used in the HEIDELBERG-MOSCOW experiment. The background model is oversimplified and not yet adequate. It is not shown that the lines of their background can be identified. GERDA has to continue the measurement further ˜5 years, until they can responsibly present an understood background. The present half life limit presented by GERDA of T {1/2/0v} > 2.1 × 1025 y (90% confidence level, i.e. 1.6ρ) is still lower than the half-life of T {1/2/0v} = 2.23{-0.31/+0.44} × 1025 y [1] determined in the HEIDELBERG-MOSCOW experiment.

  12. Tundmatud kohad ja asjade loomus / Katrine Gram Sloth, Johna Hansen ; intervjueerinud Laura Põld

    Index Scriptorium Estoniae

    Gram Sloth, Katrine, 1983-

    2016-01-01

    Taani kunstnik Katrine Gram Sloth ja Rootsi arhitekt Johna Hansen räägivad oma lapsepõlvest, kunstnikuteest, loomingust. Johna Hanseni jaapanipärasest einelaua installatsioonist "Laud" (2015-2016), Katrine Gram Slothi Islandil loodud teosest "Vista Revisited" (2015)

  13. Results from phase I of the GERDA experiment

    International Nuclear Information System (INIS)

    Wester, Thomas

    2015-01-01

    The GERmanium Detector Array Gerda at the Laboratori Nazionali del Gran Sasso of the INFN in Italy is an experiment dedicated to the search for the neutrinoless double beta (0νββ) decay in 76 Ge. The experiment employs high purity germanium detectors enriched in 76 Ge inside a 64 m 3 cryostat filled with liquid argon. Gerda was planned in two phases of data taking with the goal to reach a half-life sensitivity in the order of 10 26 yr. Phase I of Gerda was running from November 2011 until May 2013. With about 18 kg total detector mass, data with an exposure of 21.6 kg·yr was collected and a background index of 0.01 cts/(keV·kg·yr) was achieved in the region of interest. No signal was found for the 0νββ decay and a new limit of T 1/2 > 2.1 · 10 25 yr (90% C.L.) was obtained, strongly disfavoring the previous claim of observation. Furthermore, the 2νββ decay half-life of 76 Ge was measured with unprecedented precision. Other results include new half-life limits of the order of 10 23 yr for Majoron emitting double beta decay modes with spectral indices n = 1, 2, 3, 7 and new limits in the order of 10 23 yr for 2νββ decays to the first 3 excited states of 76 Se. In Phase II, currently in preparation, the detector mass will be doubled while reducing the background index by a factor of 10

  14. Results from phase I of the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Wester, Thomas [Institute of Nuclear and Particle Physics, TU Dresden, Zellescher Weg 19, Germany thomas.wester@tu-dresden.de (Germany)

    2015-10-28

    The GERmanium Detector Array Gerda at the Laboratori Nazionali del Gran Sasso of the INFN in Italy is an experiment dedicated to the search for the neutrinoless double beta (0νββ) decay in {sup 76}Ge. The experiment employs high purity germanium detectors enriched in {sup 76}Ge inside a 64 m{sup 3} cryostat filled with liquid argon. Gerda was planned in two phases of data taking with the goal to reach a half-life sensitivity in the order of 10{sup 26} yr. Phase I of Gerda was running from November 2011 until May 2013. With about 18 kg total detector mass, data with an exposure of 21.6 kg·yr was collected and a background index of 0.01 cts/(keV·kg·yr) was achieved in the region of interest. No signal was found for the 0νββ decay and a new limit of T{sub 1/2} > 2.1 · 10{sup 25} yr (90% C.L.) was obtained, strongly disfavoring the previous claim of observation. Furthermore, the 2νββ decay half-life of {sup 76}Ge was measured with unprecedented precision. Other results include new half-life limits of the order of 10{sup 23} yr for Majoron emitting double beta decay modes with spectral indices n = 1, 2, 3, 7 and new limits in the order of 10{sup 23} yr for 2νββ decays to the first 3 excited states of {sup 76}Se. In Phase II, currently in preparation, the detector mass will be doubled while reducing the background index by a factor of 10.

  15. Results from phase I of the GERDA experiment

    Science.gov (United States)

    Wester, Thomas

    2015-10-01

    The GERmanium Detector Array Gerda at the Laboratori Nazionali del Gran Sasso of the INFN in Italy is an experiment dedicated to the search for the neutrinoless double beta (0νββ) decay in 76Ge. The experiment employs high purity germanium detectors enriched in 76Ge inside a 64 m3 cryostat filled with liquid argon. Gerda was planned in two phases of data taking with the goal to reach a half-life sensitivity in the order of 1026 yr. Phase I of Gerda was running from November 2011 until May 2013. With about 18 kg total detector mass, data with an exposure of 21.6 kg.yr was collected and a background index of 0.01 cts/(keV.kg.yr) was achieved in the region of interest. No signal was found for the 0νββ decay and a new limit of T1/2 > 2.1 . 1025 yr (90% C.L.) was obtained, strongly disfavoring the previous claim of observation. Furthermore, the 2νββ decay half-life of 76Ge was measured with unprecedented precision. Other results include new half-life limits of the order of 1023 yr for Majoron emitting double beta decay modes with spectral indices n = 1, 2, 3, 7 and new limits in the order of 1023 yr for 2νββ decays to the first 3 excited states of 76Se. In Phase II, currently in preparation, the detector mass will be doubled while reducing the background index by a factor of 10.

  16. The GERDA Neutrinoless Double Beta-Decay Experiment

    International Nuclear Information System (INIS)

    Majorovits, Bela A.

    2007-01-01

    Neutrinoless double beta (0νββ)-decay is the key process to gain understanding of the nature of neutrinos. The GErmanium Detector Array (GERDA) is designed to search for 0νββ-decay of the isotope 76 Ge. Germanium crystals enriched in 76 Ge, acting as source and detector simultaneously, will be submerged directly into an ultra pure cooling medium that also serves as a radiation shield. This concept will allow for a reduction of the background by up to two orders of magnitudes with respect to earlier experiments

  17. The performance of the Muon Veto of the Gerda experiment

    Energy Technology Data Exchange (ETDEWEB)

    Freund, K.; Falkenstein, R.; Grabmayr, P.; Hegai, A.; Jochum, J.; Knapp, M.; Ritter, F.; Schmitt, C.; Schuetz, A.K. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Lubsandorzhiev, B. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Jitnikov, I.; Shevchik, E.; Shirchenko, M.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation)

    2016-05-15

    Low background experiments need a suppression of cosmogenically induced events. The Gerda experiment located at Lngs is searching for the 0νββ decay of {sup 76}Ge. It is equipped with an active muon veto the main part of which is a water Cherenkov veto with 66 PMTs in the water tank surrounding the Gerda cryostat. With this system 806 live days have been recorded, 491 days were combined muon-germanium data. A muon detection efficiency of ε{sub μd} = (99.935 ± 0.015)% was found in a Monte Carlo simulation for the muons depositing energy in the germanium detectors. By examining coincident muon-germanium events a rejection efficiency of ε{sub μr} = (99.2{sub -0.4}{sup +0.3})% was found. Without veto condition the muons by themselves would cause a background index of BI{sub μ} = (3.16 ± 0.85) x 10{sup -3} cts/(keV . kg . year) at Q{sub ββ}. (orig.)

  18. ICP MS selection of radiopure materials for the GERDA experiment

    Science.gov (United States)

    di Vacri, M. L.; Nisi, S.; Cattadori, C.; Janicsko, J.; Lubashevskiy, A.; Smolnikov, A.; Walter, M.

    2015-08-01

    The GERDA (GERmanium Detector Array) experiment, located in the Gran Sasso Underground Laboratory (LNGS, Italy) aims to search for neutrinoless double beta (0νββ) decay of the 76Ge isotope. Both an ultra-low radioactivity background environment and active techniques to abate the residual background are required to reach the background index (of 10-3 counts/keV kg y) at the Qββ. In order to veto and suppress those events that partially deposit energy in Ge detectors, the readout of liquid argon (LAr) scintillation light (SL) has been implemented for the second GERDA experimental Phase. A double veto system has been designed and constructed using highly radiopure materials (scintillating fibers, wavelength shifters, polymeric foils, reflective foils). This work describes the study of lead, thorium and uranium ultra-trace content, performed at the LNGS Chemistry Laboratory by High Resolution Mass Spectrometry (HR ICP MS), for the selection of all materials involved in the construction of the veto system

  19. ICP MS selection of radiopure materials for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Di Vacri, M. L., E-mail: divacrim@lngs.infn.it [INFN, Laboratori Nazionali del Gran Sasso, via G.Acitelli 22, 67100 Assergi (Italy); Dipartimento di Scienze Fisiche e Chimiche, University of L’Aquila, via Vetoio, 67100 L’Aquila (Italy); Nisi, S., E-mail: nisi@lngs.infn.it [INFN, Laboratori Nazionali del Gran Sasso, via G.Acitelli 22, 67100 Assergi (AQ) (Italy); Cattadori, C., E-mail: cattadori@lngs.infn.it [INFN Sezione di Milano Bicocca, Milano (Italy); Janicsko, J. [TUM Munich (Germany); Lubashevskiy, A. [MPIK, Heidelberg (Germany); JINR, Dubna (Russian Federation); Smolnikov, A. [MPIK, Heidelberg (Germany); Walter, M. [Physik-Institut, Universitat Zurich, 8057 Zurich (Switzerland)

    2015-08-17

    The GERDA (GERmanium Detector Array) experiment, located in the Gran Sasso Underground Laboratory (LNGS, Italy) aims to search for neutrinoless double beta (0νββ) decay of the {sup 76}Ge isotope. Both an ultra-low radioactivity background environment and active techniques to abate the residual background are required to reach the background index (of 10{sup −3} counts/keV kg y) at the Q{sub ββ}. In order to veto and suppress those events that partially deposit energy in Ge detectors, the readout of liquid argon (LAr) scintillation light (SL) has been implemented for the second GERDA experimental Phase. A double veto system has been designed and constructed using highly radiopure materials (scintillating fibers, wavelength shifters, polymeric foils, reflective foils). This work describes the study of lead, thorium and uranium ultra-trace content, performed at the LNGS Chemistry Laboratory by High Resolution Mass Spectrometry (HR ICP MS), for the selection of all materials involved in the construction of the veto system.

  20. Background rejection of n+ surface events in GERDA Phase II

    Science.gov (United States)

    Lehnert, Björn

    2016-05-01

    The GERDA experiment searches for neutrinoless double beta (0vββ) decay in 76Ge using an array of high purity germanium (HPGe) detectors immersed in liquid argon (LAr). Phase II of the experiment uses 30 new broad energy germanium (BEGe) detectors with superior pulse shape discrimination capabilities compared to the previously used semi-coaxial detector design. By far the largest background component for BEGe detectors in GERDA are n+-surface events from 42K β decays which are intrinsic in LAr. The β particles with up to 3.5 MeV can traverse the 0.5 to 0.9 mm thick electrode and deposit energy within the region of interest for the 0vββ decay. However, those events have particular pulse shape features allowing for a strong discrimination. The understanding and simulation of this background, showing a reduction by up to a factor 145 with pulse shape discrimination alone, is presented in this work.

  1. Searching Neutrinoless Double Beta Decay with GERDA Phase II

    Science.gov (United States)

    Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Bode, T.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Comellato, T.; D’Andrea, V.; Demidova, E. V.; di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Gangapshev, A.; Garfagnini, A.; Giordano, M.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hahne, C.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Holl, P.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kazalov, V.; Kermaidic, Y.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Marissens, G.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Nisi, S.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Ransom, C.; Reissfelder, M.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Sala, E.; Salamida, F.; Schmitt, C.; Schneider, B.; Schreiner, J.; Schulz, O.; Schweisshelm, B.; Schwingenheuer, B.; Schönert, S.; Schütz, A.-K.; Seitz, H.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zschocke, A.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.

    An observation of neutrinoless double beta (0νββ) decay would allow to shed light onto the nature of neutrinos. GERDA (GERmanium Detector Array) aims to discover this process in a background-free search using 76Ge. The experiment is located at the Laboratori Nazionali del Gran Sasso (LNGS) of the Istituto Nazionale di Fisica Nucleare (INFN) in Italy. Bare, isotopically enriched, high purity germanium detectors are operated in liquid argon. GERDA follows a staged approach. In Phase II 35.6 kg of enriched germanium detectors are operated since December 2015. The application of active background rejection methods, such as a liquid argon scintillation light read-out and pulse shape discrimination of germanium detector signals, allows to reduce the background index to the intended level of 10‑3 cts/(keVṡkgṡyr). No evidence for the 0νββ decay has been found in 23.2 kgṡyr of Phase II data, and together with data from Phase I the up-to-date most stringent half-life limit for this process in 76Ge has been established, at a median sensitivity of 5.8ṡ1025yr the 90% C.L. lower limit is 8.0ṡ1025yr.

  2. Off-line data processing and analysis for the GERDA experiment

    International Nuclear Information System (INIS)

    Agostini, M; Pandola, L; Zavarise, P

    2012-01-01

    Gerda is an experiment designed to look for the neutrinoless double beta decay of 76 Ge. The experiment uses an array of high-purity germanium detectors (enriched in 76 Ge) directly immersed in liquid argon. Gerda is presently operating eight enriched coaxial detectors (approximately 15 kg of 76 Ge) and about 25 new custom-made enriched BEGe detectors will be deployed in the next phase (additional 20kg of 76 Ge). The paper describes the Gerda off-line analysis of the high-purity germanium detector data. Firstly we present the signal processing flow, focusing on the digital filters and on the algorithms used. Secondly we discuss the rejection of non-physical events and the data quality monitoring. The analysis is performed completely with the Gerda software framework (Gelatio), designed to support a multi-channel processing and to perform a modular analysis of digital signals.

  3. Search for the neutrinoless ββ decay in 76Ge with the GERDA experiment

    International Nuclear Information System (INIS)

    Cattadori, C.; Knapp, M.; Kröninger, K.; Liu, X.; Pandola, L.; Pullia, A.; Tomei, C.; Ur, C.; Zocca, F.

    2011-01-01

    The GERmanium Detector Array, GERDA, [Gerda Collaboration, Abt I et al., Proposal, a (http://www.mpi-hd.mpg.de/ge76/home.html)] is designed to search for neutrinoless double beta (0νββ)-decay of 76 Ge. The importance of such a search is emphasized by the evidence of a non-zero neutrino mass from flavour oscillation experiments and by the recent claim [Klapdor-Kleingrothaus H V et al., Phys. Lett. B 586, 198 (2004)] based on data of the Heidelberg-Moscow experiment. GERDA will be installed in the Hall A of the Gran Sasso underground Laboratory (LNGS), Italy. The construction of GERDA will start in 2006.

  4. Phase II Upgrade of the GERDA Experiment for the Search of Neutrinoless Double Beta Decay

    Science.gov (United States)

    Majorovits, B.

    Observation of neutrinoless double beta decay could answer the question regarding the Majorana or Dirac nature of neutrinos. The GERDA experiment utilizes HPGe detectors enriched with the isotope 76Ge to search for this process. Recently the GERDA collaboration has unblinded data of Phase I of the experiment. In order to further improve the sensitivity of the experiment, additionally to the coaxial detectors used, 30 BEGe detectors made from germanium enriched in 76Ge will be deployed in GERDA Phase II. BEGe detectors have superior PSD capability, thus the background can be further reduced. The liquid argon surrounding the detector array will be instrumented in order to reject background by detecting scintillation light induced in the liquid argon by radiation. After a short introduction the hardware preparations for GERDA Phase II as well as the processing and characterization of the 30 BEGe detectors are discussed.

  5. Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Vacri, A. di; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, ********************M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Ur, C. A.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2015-06-01

    An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10 % at the value for decay in Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter.

  6. Improvement of the GERDA Ge Detectors Energy Resolution by an Optimized Digital Signal Processing

    Science.gov (United States)

    Benato, G.; D'Andrea, V.; Cattadori, C.; Riboldi, S.

    GERDA is a new generation experiment searching for neutrinoless double beta decay of 76Ge, operating at INFN Gran Sasso Laboratories (LNGS) since 2010. Coaxial and Broad Energy Germanium (BEGe) Detectors have been operated in liquid argon (LAr) in GERDA Phase I. In the framework of the second GERDA experimental phase, both the contacting technique, the connection to and the location of the front end readout devices are novel compared to those previously adopted, and several tests have been performed. In this work, starting from considerations on the energy scale stability of the GERDA Phase I calibrations and physics data sets, an optimized pulse filtering method has been developed and applied to the Phase II pilot tests data sets, and to few GERDA Phase I data sets. In this contribution the detector performances in term of energy resolution and time stability are here presented. The improvement of the energy resolution, compared to standard Gaussian shaping adopted for Phase I data analysis, is discussed and related to the optimized noise filtering capability. The result is an energy resolution better than 0.1% at 2.6 MeV for the BEGe detectors operated in the Phase II pilot tests and an improvement of the energy resolution in LAr of about 8% achieved on the GERDA Phase I calibration runs, compared to previous analysis algorithms.

  7. Gaseous 83mKr generator for KATRIN

    Science.gov (United States)

    Sentkerestiová, J.; Dragoun, O.; Lebeda, O.; Ryšavý, M.; Sturm, M.; Vénos, D.

    2018-04-01

    Monoenergetic conversion electrons from the 83mKrKr isomeric state have been proven to be useful in the calibration of several tritium neutrino mass and dark matter experiments. In this paper the design and characteristics of the gaseous 83mKrKr generator, including the 83Rb/83mKrKr source behavior in tritium, for the KATRIN experiment are presented. Using Si(Li) and silicon drift detectors (SDD) detectors, the half-life of the 83mKrKr isomeric state was measured to be 1.8620 ± 0.0019 h.

  8. SOLVENT-BASED ENHANCED OIL RECOVERY PROCESSES TO DEVELOP WEST SAK ALASKA NORTH SLOPE HEAVY OIL RESOURCES

    Energy Technology Data Exchange (ETDEWEB)

    David O. Ogbe; Tao Zhu

    2004-01-01

    A one-year research program is conducted to evaluate the feasibility of applying solvent-based enhanced oil recovery processes to develop West Sak and Ugnu heavy oil resources found on the Alaska North Slope (ANS). The project objective is to conduct research to develop technology to produce and market the 300-3000 cp oil in the West Sak and Ugnu sands. During the first phase of the research, background information was collected, and experimental and numerical studies of vapor extraction process (VAPEX) in West Sak and Ugnu are conducted. The experimental study is designed to foster understanding of the processes governing vapor chamber formation and growth, and to optimize oil recovery. A specially designed core-holder and a computed tomography (CT) scanner was used to measure the in-situ distribution of phases. Numerical simulation study of VAPEX was initiated during the first year. The numerical work completed during this period includes setting up a numerical model and using the analog data to simulate lab experiments of the VAPEX process. The goal was to understand the mechanisms governing the VAPEX process. Additional work is recommended to expand the VAPEX numerical study using actual field data obtained from Alaska North Slope.

  9. Neli Peret Hispaanias, tekstiilikunstnikest rääkimata / Katrin Pere

    Index Scriptorium Estoniae

    Pere, Katrin, 1952-

    1998-01-01

    9. - 12. märtsini Barcelonas ja Madridis toimunud European Textile Networki aastakonverentsist. Eestist osalesid : Lylian Meister, Lea Pruuli, Aet Ollisaar-Kalamees, Katrin Pere, Merike Männi, Aune Taamal, Anne Tootma, Signe Kivi, Peeter Pere

  10. Väike pahe või suur kirg? / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2006-01-01

    Veinijoomisest, sigari suitsetamisest ning kaartide tagumisest räägivad sigarisalongi La Casa del Habano perenaine Angela Leima, Tartu Veiniklubi liige Katrin Pärgmäe ja bridzhiklubi president Marion Ründal

  11. Kuu plaat : Lauri Saatpalu ja Katrin Mandel "Sa oled hea". Plaadid kauplusest Lasering

    Index Scriptorium Estoniae

    2005-01-01

    Heliplaatidest: Lauri Saatpalu ja Katrin Mandel "Sa oled hea", Goldfrapp "Supernature", Ultima Thule "Ingel ja suli", Sigur Ros "Takk...", Franz Ferdinand "You Could Have It So Much Better", Ans.Andur "Tuled peale"

  12. Pärnu Kontserdimaja : Pärnu, Aida tn. 4 / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2003-01-01

    Projekteerija: COO Arhitektid. Arhitektid-sisekujundajad Hanno Grossschmidt, Kaire Nõmm, Katrin Koov. Konstruktor: Inseneribüroo Pike OÜ. Projekt: jaanuar 2002, valmis: november 2002. I ja II korruse plaan, 2 välis- ja 3 sisevaadet

  13. Twilio Eesti büroo = Offices of Twilio Estonia / Katrin Kaevats ; kommenteerinud Ann Koljang

    Index Scriptorium Estoniae

    Kaevats, Katrin, 1980-

    2016-01-01

    Rahvusvahelise ettevõtte Twilio Eesti büroo Tallinnas, Veerenni tn. 24. Sisekujunduse autorid Katrin Kaevats, Jaan Port, Markus Nimik, Neeme Tiimus, Anna Nikland. Büroohoone projekteerisid PIN Arhitektid

  14. Sarnaneme ja eristume vormirõiva abiga / Britt Samoson ; kommenteerinud Katrin Kuldma

    Index Scriptorium Estoniae

    Samoson, Britt, 1982-

    2010-01-01

    Jaana Varkki ja Erkki Engso disainitud EXPO Shanghai 2010 maailmanäituse Eesti Paviljoni tiimitöötajate vormirõivastest. Rahvusooper Estonia ning Nokia kontserdimaja teenindajate rõivaid tutvustab nende looja Katrin Kuldma

  15. Solid electron sources for the energy scale monitoring in the KATRIN experiment

    CERN Document Server

    Zbořil, Miroslav; Vénos, D

    The KArlsruhe TRItium Neutrino (KATRIN) experiment represents a next-generation tritium $\\beta$-decay experiment designed to perform a high precision direct measurement of the electron anti-neutrino mass m($\

  16. Missugused on teie kogemused väikeklassidega? / Villu Mengel, Ana Kontor, Katrin Betlem, Riina Kink

    Index Scriptorium Estoniae

    2013-01-01

    Küsimusele vastasid Sikupilli keskkooli direktor Villu Mengel, Tartu hariduse tugiteenuste keskuse eripedagoog Ana Kontor, Tabasalu ühisgümnaasiumi õppejuht-sotsiaalpedagoog Katrin Betlem, Keila kooli põhikooli õppejuht Riina Kink

  17. Acute Treatment with T-Type Calcium Channel Enhancer SAK3 Reduces Cognitive Impairments Caused by Methimazole-Induced Hypothyroidism Via Activation of Cholinergic Signaling.

    Science.gov (United States)

    Husain, Noreen; Yabuki, Yasushi; Shinoda, Yasuharu; Fukunaga, Kohji

    2018-01-01

    Hypothyroidism is a common disorder that is associated with psychological disturbances such as dementia, depression, and psychomotor disorders. We recently found that chronic treatment with the T-type calcium channel enhancer SAK3 prevents the cholinergic neurodegeneration induced by a single intraperitoneal (i.p.) injection of methimazole (MMI; 75 mg/kg), thereby improving cognition. Here, we evaluated the acute effect of SAK3 on cognitive impairments and its mechanism of action following the induction of hypothyroidism. Hypothyroidism was induced by 2 injections of MMI (75 mg/kg, i.p.) administered once per week. Four weeks after the final MMI treatment, MMI-treated mice showed reduced serum thyroxine (T4) levels and cognitive impairments without depression-like behaviors. Although acute SAK3 (1.0 mg/kg, p.o.) administration failed to ameliorate the decreased T4 levels and histochemical destruction of the glomerular structure, acute SAK3 (1.0 mg/kg, p.o.) administration significantly reduced cognitive impairments in MMI-treated mice. Importantly, the α7 nicotinic acetylcholine receptor (nAChR)-selective inhibitor methyllycaconitine (MLA; 12 mg/kg, i.p.) and T-type calcium channel-specific blocker NNC 55-0396 (25 mg/kg, i.p.) antagonized the acute effect of SAK3 on memory deficits in MMI-treated mice. We also confirmed that acute SAK3 administration does not rescue reduced olfactory marker protein or choline acetyltransferase immunoreactivity levels in the olfactory bulb or medial septum. Taken together, these results suggest that SAK3 has the ability to improve the cognitive decline caused by hypothyroidism directly through activation of nAChR signaling and T-type calcium channels. © 2018 S. Karger AG, Basel.

  18. Investigation of background processes in the KATRIN main spectrometer

    Energy Technology Data Exchange (ETDEWEB)

    Mueller, Axel [Karlsruhe Institute of Technology (KIT), Institut fuer Kernphysik (IKP) (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    The KArlsruhe TRItium Neutrino experiment aims to probe the mass of the electron antineutrino in a model-independent way with an unsurpassed sensitivity of m{sub ν}=200 meV/c{sup 2} (90% C.L.). In order to determine the neutrino mass, the energy spectrum of electrons from the tritium β-decay is analyzed by a high-resolution electrostatic spectrometer which is based on the MAC-E filter principle. To keep the influence of the spectrometer background on the neutrino mass sensitivity small, KATRIN aims for a background level of 0.01 cps. For the investigation of different background components such as cosmic muons, external gamma radiation and the radioactive decay of isotopes in the volume of the spectrometer or on its surface, a series of dedicated measurements were performed with a combined system of main spectrometer and detector. This talk presents the results of measurements focusing on the secondary electron production at the inner surface of the spectrometer and compare them with electro-magnetic electron tracking simulations performed with the KATRIN developed simulation software KASSIOPEIA.

  19. Monitoring of the energy scale in the KATRIN neutrino experiment

    CERN Document Server

    AUTHOR|(CDS)2083282

    The question of the absolute mass scale of neutrinos is of particular interest for particle physics, astrophysics, and cosmology. The KATRIN experiment (KArlsruhe TRItium Neutrino experiment) aims to address the effective electron antineutrino mass from the shape of the tritium $\\beta$-spectrum with an unprecedented sensitivity of 0.2 eV/c$^2$. One of the major systematic effects concerns the experimental energy scale, which has to be stable at the level of only a few parts in a million. For its calibration and monitoring the monoenergetic electrons emitted in the internal conversion of $\\gamma$-transition of the metastable isotope $^{83\\mathrm{m}}$Kr will be extensively applied. The aim of this thesis is to address the problem of KATRIN energy scale distortions and its monitoring in detail. The source of electrons based on $^{83\\mathrm{m}}$Kr embedded in a solid as well as the source based on gaseous $^{83\\mathrm{m}}$Kr are studied. Based on the experimental results an approach for the continuous stability m...

  20. Design, simulation and construction of the GERDA-muon veto; Design, Simulation und Aufbau des GERDA-Myonvetos

    Energy Technology Data Exchange (ETDEWEB)

    Knapp, Markus Alexander

    2009-10-09

    The GERmanium Detector Array (Gerda) is a experiment searching for the neutrinoless double beta decay of {sup 76}Ge. This very rare weakly interacting process is predicted to occur if the neutrino exhibits a mass and is a Majorana particle; i.e. it is its own antiparticle. Although the double beta decay with emission of two neutrinos has been found in several nuclei, there is at this moment only a part of the Heidelberg-Moscow Collaboration claiming to have observed the neutrinoless double beta decay. The best limit for the half life currently is T{sub 1/2} > 1.2.10{sup 25} y. Gerda will expose about 15 kg.y of enriched germanium detectors from the Heidelberg-Moscow and IGEX crystals in phase I. In this phase, it will be able to test the claim within one year, due to reduced background by a factor 10. In phase II about 100 kg.y of data will be accumulated, leading to T{sub 1/2} > 2.10{sup 26} y due to an additional reduction of the background by a factor of 10. For a high sensitivity at these half lives, it is necessary to detect the corresponding rare events. Therefore background reduction to a rate of 10{sup -3} (counts)/(keV.kg.year) is of utmost importance. Therefore different background identification methods, like pulseshape analysis or a muon veto will be used. In this work, the development of the Cherenkov muon veto detectors is presented. First design studies will be shown, including extensive Monte-Carlo simulations. These simulations were also used to optimize the trigger conditions of the data acquisition, to detect all muons, that cause an energy deposition in the germanium detectors. Finally the on site construction at the Laboratori Nazionali del Gran Sasso in Italy will be described. (orig.)

  1. Forecasting neutrino masses from combining KATRIN and the CMB observations: Frequentist and Bayesian analyses

    Science.gov (United States)

    Host, Ole; Lahav, Ofer; Abdalla, Filipe B.; Eitel, Klaus

    2007-12-01

    We present a showcase for deriving bounds on the neutrino masses from laboratory experiments and cosmological observations. We compare the frequentist and Bayesian bounds on the effective electron neutrino mass mβ which the KATRIN neutrino mass experiment is expected to obtain, using both an analytical likelihood function and Monte Carlo simulations of KATRIN. Assuming a uniform prior in mβ, we find that a null result yields an upper bound of about 0.17 eV at 90% confidence in the Bayesian analysis, to be compared with the frequentist KATRIN reference value of 0.20 eV. This is a significant difference when judged relative to the systematic and statistical uncertainties of the experiment. On the other hand, an input mβ=0.35eV, which is the KATRIN 5σ detection threshold, would be detected at virtually the same level. Finally, we combine the simulated KATRIN results with cosmological data in the form of present (post-WMAP) and future (simulated Planck) observations. If an input of mβ=0.2eV is assumed in our simulations, KATRIN alone excludes a zero neutrino mass at 2.2σ. Adding Planck data increases the probability of detection to a median 2.7σ. The analysis highlights the importance of combining cosmological and laboratory data on an equal footing.

  2. Forecasting neutrino masses from combining KATRIN and the CMB observations: Frequentist and Bayesian analyses

    International Nuclear Information System (INIS)

    Host, Ole; Lahav, Ofer; Abdalla, Filipe B.; Eitel, Klaus

    2007-01-01

    We present a showcase for deriving bounds on the neutrino masses from laboratory experiments and cosmological observations. We compare the frequentist and Bayesian bounds on the effective electron neutrino mass m β which the KATRIN neutrino mass experiment is expected to obtain, using both an analytical likelihood function and Monte Carlo simulations of KATRIN. Assuming a uniform prior in m β , we find that a null result yields an upper bound of about 0.17 eV at 90% confidence in the Bayesian analysis, to be compared with the frequentist KATRIN reference value of 0.20 eV. This is a significant difference when judged relative to the systematic and statistical uncertainties of the experiment. On the other hand, an input m β =0.35 eV, which is the KATRIN 5σ detection threshold, would be detected at virtually the same level. Finally, we combine the simulated KATRIN results with cosmological data in the form of present (post-WMAP) and future (simulated Planck) observations. If an input of m β =0.2 eV is assumed in our simulations, KATRIN alone excludes a zero neutrino mass at 2.2σ. Adding Planck data increases the probability of detection to a median 2.7σ. The analysis highlights the importance of combining cosmological and laboratory data on an equal footing

  3. Results on neutrinoless double beta decay of 76Ge from the GERDA experiment

    Science.gov (United States)

    Palioselitis, Dimitrios

    2015-05-01

    The Germanium Detector Array (GERDA) experiment is searching for neutrinoless double beta (0νββ) decay of 76Ge, a lepton number violating nuclear process predicted by extensions of the Standard Model. GERDA is an array of bare germanium diodes immersed in liquid argon located at the Gran Sasso National Laboratory (LNGS) in Italy. The results of the GERDA Phase I data taking with a total exposure of 21.6 kg yr and a background index of 0.01 cts/(keV kg yr) are presented in this paper. No signal was observed and a lower limit of T1/20ν > 2.1×1025 yr (90% C.L.) was derived for the half-life of the 0νββ decay of 76Ge. Phase II of the experiment aims to reduce the background around the region of interest by a factor of ten.

  4. Status of the KATRIN focal-plane detector

    Energy Technology Data Exchange (ETDEWEB)

    Seher, Agnes [Karlsruher Institute of Technology (KIT) (Germany). Institut fuer Kernphysik (IKP); Collaboration: KATRIN-Collaboration

    2016-07-01

    The KArlsruhe TRItium Neutrino (KATRIN) experiment aims to determine the mass of the electron anti-neutrino with a sensitivity of 200 meV/c{sup 2} by measuring the kinematics of tritium β-electrons close to the enpoint of the energy spectrum. The energy analysis of the experiment is performed with a high-resolution electrostatic spectrometer of MAC-E filter type which acts as an integranting high pass filter. Transmitted electrons are counted with a segmented silicon detector system located at the downstream end of the experiment. The detector system consists of two super-conducting solenoids (B{sub max}=6 T), a post-acceleration electrode, a detector wafer with silicon pixel-diodes, readout electronics as well as a calibration and monitoring devices. This talk gives an overview of the detector system and its current status as well as key performance parameters.

  5. Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

    International Nuclear Information System (INIS)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.

    2015-01-01

    An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in 76 Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10 % at the Q value for 0νββ decay in 76 Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter

  6. Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M. [Physik Department and Excellence Cluster Universe, Technische Universität München, Munich (Germany); Allardt, M. [Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden (Germany); Bakalyarov, A. M. [National Research Center “Kurchatov Institute”, Moscow (Russian Federation); Balata, M. [INFN Laboratori Nazionali del Gran Sasso, LNGS, and Gran Sasso Science Institute, GSSI, Assergi (Italy); Collaboration: GERDA Collaboration; and others

    2015-06-09

    An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in {sup 76}Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10 % at the Q value for 0νββ decay in {sup 76}Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter.

  7. Results on neutrinoless double beta decay of 76Ge from GERDA Phase I

    International Nuclear Information System (INIS)

    Palioselitis, Dimitrios

    2015-01-01

    The Germanium Detector Array (GERDA) experiment is searching for the neutrinoless double beta (0νββ) decay of 76 Ge by operating bare germanium diodes in liquid argon. GERDA is located at the Gran Sasso National Laboratory (LNGS) in Italy. During Phase I, a total exposure of 21.6 kg yrand a background index of 0.01 cts/(keVkg yr) were reached. No signal was observed and a lower limit of T 0ν 1/2 > 2.1 · 10 25 yr(90% C.L.) is derived for the half life of the 0νββ decay of 76 Ge. (paper)

  8. Results on neutrinoless double beta decay of 76Ge from GERDA Phase I

    Science.gov (United States)

    Palioselitis, Dimitrios; GERDA Collaboration

    2015-05-01

    The Germanium Detector Array (GERDA) experiment is searching for the neutrinoless double beta (0νββ) decay of 76Ge by operating bare germanium diodes in liquid argon. GERDA is located at the Gran Sasso National Laboratory (LNGS) in Italy. During Phase I, a total exposure of 21.6 kg yrand a background index of 0.01 cts/(keVkg yr) were reached. No signal was observed and a lower limit of T0ν1/2 > 2.1 · 1025 yr(90% C.L.) is derived for the half life of the 0νββ decay of 76Ge.

  9. Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Bode, T.; Budjas, D.; Janicsko Csathy, J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Allardt, M.; Domula, A.; Lehnert, B.; Schneider, B.; Wester, T.; Wilsenach, H.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Center ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; D' Andrea, V.; Di Vacri, A.; Junker, M.; Laubenstein, M.; Macolino, C.; Zavarise, P. [LNGS, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Doroshkevich, E.; Fedorova, O.; Gurentsov, V.; Kazalov, V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Moseev, P.; Selivanenko, O.; Veresnikova, A.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barros, N. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, PA (United States); Baudis, L.; Benato, G.; Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Bauer, C.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Stepaniuk, M.; Wagner, V.; Wegmann, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Becerici-Schmidt, N.; Caldwell, A.; Liao, H.Y.; Majorovits, B.; Palioselitis, D.; Schulz, O.; Vanhoefer, L. [Max-Planck-Institut fuer Physik, Munich (Germany); Bellotti, E. [Universita Milano Bicocca, Dipartimento di Fisica, Milan (Italy); INFN Milano Bicocca, Milan (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Medinaceli, E.; Sada, C.; Sturm, K. von [Universita di Padova, Dipartimento di Fisica e Astronomia, Padua (Italy); INFN Padova, Padua (Italy); Borowicz, D. [Jagiellonian University, Institute of Physics, Krakow (Poland); Joint Institute for Nuclear Research, Dubna (Russian Federation); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C. [INFN Milano Bicocca, Milan (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C.; Schuetz, A.K. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Misiaszek, M.; Panas, K.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Krakow (Poland); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Center ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Hult, M.; Lutter, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Inzhechik, L.V. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Moscow Institute of Physics and Technology, Moscow (Russian Federation); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); International University for Nature, Society and Man ' ' Dubna' ' , Dubna (Russian Federation); Lippi, I.; Stanco, L.; Ur, C.A. [INFN Padova, Padua (Italy); Lubashevskiy, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Pandola, L. [INFN Laboratori Nazionali del Sud, Catania (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano, Dipartimento di Fisica, Milan (Italy); INFN, Milano (Italy); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Center ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Collaboration: GERDA Collaboration

    2015-06-15

    An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in {sup 76}Ge. The GERDA Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10% at the Q value for 0νββ decay in {sup 76}Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter. (orig.)

  10. The Gerda search for neutrinoless double beta decay

    Science.gov (United States)

    O'Shaughnessy, Christopher; Gerda Collaboration

    2013-10-01

    The Germanium Detector Array (Gerda) is a search for the neutrinoless double beta decay of 76Ge. High Purity Germanium (HPGe) detectors enriched in the isotope-76 are operated bare in liquid argon (LAr). LAr is used for both cooling of the HPGe diodes to their operating temperatures and for shielding from external radiation sources. From the measurements of the first phase that began data taking on 1 Nov. 2011 it is expected to have a sensitivity on the level of T1/2>2E25 yr at a 90% CL after 15 kġyr. The goal of this phase will be to probe the claim of an observation by part of the Heidelberg-Moscow collaboration. Efforts will then focus on increasing the sensitivity of the experiment by deploying additional enriched detectors that are in an advanced stage of production and by reducing the background index further by making use of pulse shape discrimination techniques as well as an active LAr veto. While the 0νββ region of interest continues to remain blinded, here the status of Phase-I data taking is presented along with the work towards improving the experimental sensitivity.

  11. Search of Neutrinoless Double Beta Decay with the GERDA Experiment

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hampel, W.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hoffmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicksó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Marissens, G.; Medinaceli, E.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Nisi, S.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Reissfelder, M.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schneider, B.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Seitz, H.; Selivalenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Strecker, H.; Ur, C. A.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2016-04-01

    The GERDA (GERmanium Detector Array) is an experiment for the search of neutrinoless double beta decay (0 νββ) in 76Ge, located at Laboratori Nazionali del Gran Sasso of INFN (Italy). In the first phase of the experiment, a 90% confidence level (C.L.) sensitivity of 2.4 ṡ1025 yr on the 0 νββ decay half-life was achieved with a 21.6 kgṡyr exposure and an unprecedented background index in the region of interest of 10-2 counts/(keVṡkgṡyr). No excess of signal events was found, and an experimental lower limit on the half-life of 2.1 ṡ 1025 yr (90% C.L.) was established. Correspondingly, the limit on the effective Majorana neutrino mass is mee < 0.2- 0.4 eV, depending on the considered nuclear matrix element. The previous claim for evidence of a 0 νββ decay signal is strongly disfavored, and the field of research is open again.

  12. Search for neutrinoless double beta decay with GERDA phase II

    Science.gov (United States)

    Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knies, J.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Majorovits, B.; Maneschg, W.; Marissens, G.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Ransom, C.; Reissfelder, M.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Seitz, H.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-10-01

    The GERmanium Detector Array (gerda) experiment, located at the Gran Sasso underground laboratory in Italy, is one of the leading experiments for the search of 0νββ decay. In Phase II of the experiment 35.6 kg of enriched germanium detectors are operated. The application of active background rejection methods, such as a liquid argon scintillation light read-out and pulse shape discrimination of germanium detector signals, allowed to reduce the background index to the intended level of 10-3 cts/(keV.kg.yr). In the first five month of data taking 10.8 kg yr of exposure were accumulated. No signal has been found and together with data from Phase I a new limit for the neutrinoless double beta decay half-life of 76Ge of 5.3 . 1025 yr at 90% C.L. was established in June 2016. Phase II data taking is ongoing and will allow the exploration of half-lifes in the 1026 yr regime. The current status of data taking and an update on the background index are presented.

  13. LArGe: active background suppression using argon scintillation for the GERDA 0νββ-experiment

    International Nuclear Information System (INIS)

    Agostini, M.; Budjas, D.; Schoenert, S.; Barnabe-Heider, M.; Cattadori, C.; Gangapshev, A.; Gusev, K.; Heisel, M.; Smolnikov, A.; Junker, M.; Klimenko, A.; Lubashevskiy, A.; Pelczar, K.; Zuzel, G.

    2015-01-01

    LArGe is a GERDA low-background test facility to study novel background suppression methods in a low-background environment, for future application in the GERDA experiment. Similar to GERDA, LArGe operates bare germanium detectors submersed into liquid argon (1 m 3 , 1.4tons), which in addition is instrumented with photomultipliers to detect argon scintillation light. The scintillation signals are used in anti-coincidence with the germanium detectors to effectively suppress background events that deposit energy in the liquid argon. The background suppression efficiency was studied in combination with a pulse shape discrimination (PSD) technique using a BEGe detector for various sources, which represent characteristic backgrounds to GERDA. Suppression factors of a few times 10 3 have been achieved. First background data of LArGe with a coaxial HPGe detector (without PSD) yield a background index of (0.12 - 4.6) x 10 -2 cts/(keV kg year) (90 % C.L.), which is at the level of GERDA Phase I. Furthermore, for the first time we monitor the natural 42 Ar abundance (parallel to GERDA), and have indication for the 2νββ-decay in natural germanium. These results show the effectivity of an active liquid argon veto in an ultra-low background environment. As a consequence, the implementation of a liquid argon veto in GERDA Phase II is pursued. (orig.)

  14. LArGe: active background suppression using argon scintillation for the Gerda 0ν β β -experiment

    Science.gov (United States)

    Agostini, M.; Barnabé-Heider, M.; Budjáš, D.; Cattadori, C.; Gangapshev, A.; Gusev, K.; Heisel, M.; Junker, M.; Klimenko, A.; Lubashevskiy, A.; Pelczar, K.; Schönert, S.; Smolnikov, A.; Zuzel, G.

    2015-10-01

    LArGe is a Gerda low-background test facility to study novel background suppression methods in a low-background environment, for future application in the Gerda experiment. Similar to Gerda, LArGe operates bare germanium detectors submersed into liquid argon (1 m^3, 1.4 tons), which in addition is instrumented with photomultipliers to detect argon scintillation light. The scintillation signals are used in anti-coincidence with the germanium detectors to effectively suppress background events that deposit energy in the liquid argon. The background suppression efficiency was studied in combination with a pulse shape discrimination (PSD) technique using a BEGe detector for various sources, which represent characteristic backgrounds to Gerda. Suppression factors of a few times 10^3 have been achieved. First background data of LArGe with a coaxial HPGe detector (without PSD) yield a background index of (0.12-4.6)× 10^{-2} cts/(keV kg year) (90 % C.L.), which is at the level of Gerda Phase I. Furthermore, for the first time we monitor the natural ^{42}Ar abundance (parallel to Gerda), and have indication for the 2ν β β -decay in natural germanium. These results show the effectivity of an active liquid argon veto in an ultra-low background environment. As a consequence, the implementation of a liquid argon veto in Gerda Phase II is pursued.

  15. LArGe: active background suppression using argon scintillation for the GERDA 0νββ-experiment

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Budjas, D.; Schoenert, S. [Technische Universitaet Muenchen, Munich (Germany); Barnabe-Heider, M. [Technische Universitaet Muenchen, Munich (Germany); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Cattadori, C. [Universita degli Studi di Milano, Milan (Italy); INFN, Milan (Italy); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institut for Nuclear Research, Moscow (Russian Federation); Gusev, K. [Technische Universitaet Muenchen, Munich (Germany); Joint Institut for Nuclear Research, Dubna (Russian Federation); National Research Center Kurchatov Institut, Moscow (Russian Federation); Heisel, M.; Smolnikov, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Junker, M. [Laboratori Nazionali del Gran Sasso, Assergi (Italy); Klimenko, A.; Lubashevskiy, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Joint Institut for Nuclear Research, Dubna (Russian Federation); Pelczar, K. [Jagellonian University, Cracow (Poland); Zuzel, G. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Jagellonian University, Cracow (Poland)

    2015-10-15

    LArGe is a GERDA low-background test facility to study novel background suppression methods in a low-background environment, for future application in the GERDA experiment. Similar to GERDA, LArGe operates bare germanium detectors submersed into liquid argon (1 m{sup 3}, 1.4tons), which in addition is instrumented with photomultipliers to detect argon scintillation light. The scintillation signals are used in anti-coincidence with the germanium detectors to effectively suppress background events that deposit energy in the liquid argon. The background suppression efficiency was studied in combination with a pulse shape discrimination (PSD) technique using a BEGe detector for various sources, which represent characteristic backgrounds to GERDA. Suppression factors of a few times 10{sup 3} have been achieved. First background data of LArGe with a coaxial HPGe detector (without PSD) yield a background index of (0.12 - 4.6) x 10{sup -2} cts/(keV kg year) (90 % C.L.), which is at the level of GERDA Phase I. Furthermore, for the first time we monitor the natural {sup 42}Ar abundance (parallel to GERDA), and have indication for the 2νββ-decay in natural germanium. These results show the effectivity of an active liquid argon veto in an ultra-low background environment. As a consequence, the implementation of a liquid argon veto in GERDA Phase II is pursued. (orig.)

  16. Results on Neutrinoless Double-Beta Decay from Gerda Phase I

    Science.gov (United States)

    Macolino, Carla

    2014-12-01

    The GERmanium Detector Array, GERDA, is designed to search for neutrinoless double-beta (0νββ) decay of 76Ge and it is installed in the Laboratori Nazionali del Gran Sasso (LNGS) of INFN, Italy. In this review, the detection principle and detector setup of GERDA are described. Also, the main physics results by GERDA Phase I, are discussed. They include the measurement of the half-life of 2νββ decay, the background decomposition of the energy spectrum and the techniques for the discrimination of the background, based on the pulse shape of the signal. In the last part of this review, the estimation of a limit on the half-life of 0νββ (T0ν 1/2>2.1ḑot 1025 yr at 90% C.L.) and the comparison with previous results are discussed. GERDA data from Phase I strongly disfavor the recent claim of 0νββ discovery, based on data from the Heidelberg-Moscow experiment.

  17. Search for 0νββ-decay with gerda phase II

    Science.gov (United States)

    Majorovits, B.

    2018-01-01

    The Gerda experiment is designed to search for neutrinoless double beta decay of 76Ge. From data taken during Phase I of the experiment some knowledge on background contributions important for future experiments could be obtained: limits on the bulk contamination of HPGe with primordial uranium and thorium are presented and first evidence for observation of the decay of the meta-stable state of 77mGe due to neutron capture on 76Ge is discussed. In Phase II of the Gerda experiment 37 HPGe detectors enriched in the isotope 76Ge are deployed into the Gerda cryostat. From non-observation of a peak at 2039 keV a half-life limit on neutrinoless double beta decay of 76Ge of T1/2 > 5.3 . 1025 yr has been obtained. The background rate in the energy region of interest, after pulse shape discrimination and liquid argon veto cuts is in the range of a few Cts//ROI ton yr). This makes Gerda the first 0νββ-experiment that has a background so low that <1 counts are expected in the RoI within the anticipated life time of the experiment.

  18. All but Her Life: Holocaust Survivor Gerda Klein Shares with Learners

    Science.gov (United States)

    Lincoln, Margaret

    2007-01-01

    During the 2006-2007 school year, students from Battle Creek, Michigan, high school joined numerous others from across the state in reading holocaust survivor Gerda Klein's memoir, "All But My Life." Published in 57 editions and still in print after 50 years, the book is the inspiring account of a remarkable individual who endured unspeakable…

  19. In-situ measurement of the light attenuation in liquid argon in the GERDA cryostat

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, Birgit [IKTP, TU Dresden (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    GERDA is an experiment searching for neutrinoless double beta decay in {sup 76}Ge. It uses germanium detectors which are enriched in {sup 76}Ge and operates them naked in liquid argon (LAr), which serves both as a coolant and a shield for external radiation. For phase II of GERDA it is planned to reach an exposure of 100 kg . yr with a BI of 10{sup -3} cts/(kg . yr . keV). One of the major improvements to further reduce the BI is to instrument the LAr to act as an additional background veto. The attenuation of the scintillation light in LAr creates a constraint on the effective active volume of the LAr veto and is therefore a key parameter to characterize the instrumentation. In order to measure the light attenuation in LAr, a setup was designed that could be deployed directly into the GERDA cryostat. This setup contains a movable beta source and a PMT to detect the scintillation light at different distances. The talk will describe in detail the construction of the setup, its successful deployment in the GERDA cryostat and the consecutive analysis of the acquired data.

  20. Suppression of the background coming from {sup 42}Ar in the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Lubashevskiy, Alexey [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    The GERDA experiment aims at the 0νββ search in {sup 76}Ge. The search is performed with high purity germanium detectors operated in liquid argon. One of the most dangerous backgrounds in GERDA is the background from {sup 42}K which is a daughter isotope of cosmogenically produced {sup 42}Ar, presented in natural argon. {sup 42}K ions collect on the surface of the detector and increase its background level. Several ways to suppress such background has been investigated. The tests were performed at LArGe low-background test facility, which gives a possibility to operate bare detectors in about 1m{sup 3} of LAr. It is equipped with a scintillation veto, so particles which deposit part of their energy in LAr can be detected by PMTs. The experimental setup is located at LNGS underground laboratory close to GERDA experiment location. Different experimental techniques were tested together with pulse shape discrimination (PSD) method in order to suppress {sup 42}K background. The chosen solution for GERDA Phase II is so called ''nylon mini-shroud'' (NMS). It is made from nylon foil and covered with wavelength shifter from both sides. NMS allows to suppress collection of {sup 42}K ions towards to the surface significantly. It was demonstrated in LArGe that together with PSD and scintillation veto the {sup 42}K background can be suppressed in more than 1000 times. The results obtained during commissioning runs in GERDA Phase II are also presented.

  1. Vastuseid Vaapo Vaheri küsimistele / Katrin Kalamees, Maritsa Lens

    Index Scriptorium Estoniae

    Kalamees, Katrin

    2003-01-01

    Arvustus: XX sajandi vene kirjandus. I, Luule / [koostanud Katrin Kalamees ja Maritsa Lens. Tallinn] : Avita, 2002; XX sajandi vene kirjandus. II, Proosa / [koostanud Katrin Kalamees ja Maritsa Lens. Tallinn] : Avita, 2002. Vastuseks Vaapo Vaheri arvustusele "Vene kirjanduse õpik lõhestab kirjanikud headeks ja pahadeks", Eesti Päevaleht : Arkaadia, 25. apr. 2003. Vt. ka vastukajad: Tuch, Boris. Dva toma oshibok // Estonija (2002) 28. apr., lk. 9; Vaher, Vaapo. Hüvad ärritunud pedagoogilised daamid, Eesti Päevaleht : Arkaadia, 2. mai, lk. 17

  2. Status of the cryogenic pumping section of the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Roettele, Carsten [Karlsruhe Institute of Technology (KIT) (Germany). Institut fuer Kernphysik (IKP); Collaboration: KATRIN-Collaboration

    2016-07-01

    The Karlsruhe Tritium Neutrino (KATRIN) experiment uses the kinematics of tritium β-decay to determine the electron antineutrino mass with a sensitivity of m{sub ν}=200 meV/c{sup 2} (90 % C.L.). In order to measure the decay electrons it is important to guide them adiabatically from the source to the spectrometer. In addition the diffusion of tritium into the spectrometers from the source has to be reduced by 14 magnitudes of order as tritium inside the spectrometers would induce additional background. For these two tasks the transport and pumping section were constructed. The last part of this section is the Cryogenic Pumping Section (CPS), which aims to reduce the residual gas flow by not less than seven orders of magnitude. For this a 3 K cold argon frost area (surface ∼ 2 m{sup 2}) will be prepared to adsorb the incoming tritium molecules. This talk will present the milestones which were reached since the CPS arrived on 30th July 2015 on KIT. Amongst others the calculations of the magnetic flux tube through the CPS based on as-built measurements of the coil geometries are presented.

  3. An angular selective electron gun for the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Zacher, Michael; Ortjohann, Hans-Werner; Steinbrink, Nicholas; Josten, Lorenz; Hannen, Volker; Weinheimer, Christian; Winzen, Daniel [Westfaelische Wilhelms-Universitaet, Muenster (Germany); Collaboration: KATRIN-Collaboration

    2013-07-01

    The KArlsruhe TRItium Neutrino experiment aims for a measurement of the electron anti-neutrino mass with a sensitivity of 200 meV/c{sup 2} (95% C.L.) by analysing the endpoint region of the tritium β-decay. The main spectrometer (MAC-E filter type, 23m length) is one of the central parts of the experiment, featuring an energy resolution of Δ E<1 eV. For commissioning of the spectrometer a well defined electron source is needed that allows to determine the transmission characteristics and compare the electromagnetic properties to simulations. For this purpose an angular selective electron gun was developed. A pulsed UV-Laser produces electrons via the photo-electric effect, which are then accelerated electrostatically in a magnetic field. It features a small energy spread, a sharp selectable emission angle and covers the whole magnetic flux tube of KATRIN. By that, the characteristics of the spectrometer can be investigated with high precision. The time structure of the electron pulses allows time of flight measurements, offering enhanced sensitivity. The talk gives an overview about the e-gun design and its properties.

  4. Pulse shape discrimination for Gerda Phase I data

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Andreotti, E.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barnabé Heider, M.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Cossavella, F.; Demidova, E. V.; Domula, A.; Egorov, V.; Falkenstein, R.; Ferella, A.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Guthikonda, K. K.; Hampel, W.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Liu, X.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Machado, A. A.; Majorovits, B.; Maneschg, W.; Misiaszek, M.; Nemchenok, I.; Nisi, S.; O'Shaughnessy, C.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Strecker, H.; Tarka, M.; Ur, C. A.; Vasenko, A. A.; Volynets, O.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2013-10-01

    The Gerda experiment located at the Laboratori Nazionali del Gran Sasso of INFN searches for neutrinoless double beta (0 νββ) decay of 76Ge using germanium diodes as source and detector. In Phase I of the experiment eight semi-coaxial and five BEGe type detectors have been deployed. The latter type is used in this field of research for the first time. All detectors are made from material with enriched 76Ge fraction. The experimental sensitivity can be improved by analyzing the pulse shape of the detector signals with the aim to reject background events. This paper documents the algorithms developed before the data of Phase I were unblinded. The double escape peak (DEP) and Compton edge events of 2.615 MeV γ rays from 208Tl decays as well as two-neutrino double beta (2 νββ) decays of 76Ge are used as proxies for 0 νββ decay. For BEGe detectors the chosen selection is based on a single pulse shape parameter. It accepts 0.92±0.02 of signal-like events while about 80 % of the background events at Q ββ =2039 keV are rejected. For semi-coaxial detectors three analyses are developed. The one based on an artificial neural network is used for the search of 0 νββ decay. It retains 90 % of DEP events and rejects about half of the events around Q ββ . The 2 νββ events have an efficiency of 0.85±0.02 and the one for 0 νββ decays is estimated to be . A second analysis uses a likelihood approach trained on Compton edge events. The third approach uses two pulse shape parameters. The latter two methods confirm the classification of the neural network since about 90 % of the data events rejected by the neural network are also removed by both of them. In general, the selection efficiency extracted from DEP events agrees well with those determined from Compton edge events or from 2 νββ decays.

  5. Pulse shape discrimination for Gerda Phase I data

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Bode, T.; Budjas, D.; Janicsko Csathy, J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Allardt, M.; Barros, N.; Domula, A.; Lehnert, B.; Wester, T.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Andreotti, E. [Institute for Reference Materials and Measurements, Geel (Belgium); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; Ioannucci, L.; Junker, M.; Laubenstein, M.; Macolino, C.; Nisi, S.; Pandola, L.; Zavarise, P. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Gurentsov, V.; Inzhechik, L.V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barnabe Heider, M. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Baudis, L.; Benato, G.; Ferella, A.; Guthikonda, K.K.; Tarka, M.; Walter, M. [Physik Institut der Universitaet Zuerich, Zuerich (Switzerland); Bauer, C.; Hampel, W.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Lubashevskiy, A.; Machado, A.A.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Strecker, H.; Wagner, V.; Wegmann, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Becerici-Schmidt, N.; Caldwell, A.; Cossavella, F.; Liao, H.Y.; Liu, X.; Majorovits, B.; O' Shaughnessy, C.; Schulz, O.; Volynets, O. [Max-Planck-Institut fuer Physik, Muenchen (Germany); Bellotti, E.; Pessina, G. [Universita Milano Bicocca, Dipartimento di Fisica, Milano (Italy); INFN Milano Bicocca, Milano (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Sada, C. [Universita di Padova, Dipartimento di Fisica e Astronomia, Padova (Italy); INFN Padova, Padova (Italy); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Shevchik, E.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C.; Gotti, C. [INFN Milano Bicocca, Milano (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Misiaszek, M.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Cracow (Poland); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Hult, M.; Lutter, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Lippi, I.; Stanco, L.; Ur, C.A. [INFN Padova, Padova (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano (IT); INFN Milano, Dipartimento di Fisica, Milano (IT); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (RU); National Research Centre ' ' Kurchatov Institute' ' , Moscow (RU); Sturm, K. von [Universita di Padova, Dipartimento di Fisica e Astronomia, Padova (IT); INFN Padova, Padova (IT); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (DE)

    2013-10-15

    The Gerda experiment located at the Laboratori Nazionali del Gran Sasso of INFN searches for neutrinoless double beta (0{nu}{beta}{beta}) decay of {sup 76}Ge using germanium diodes as source and detector. In Phase I of the experiment eight semi-coaxial and five BEGe type detectors have been deployed. The latter type is used in this field of research for the first time. All detectors are made from material with enriched {sup 76}Ge fraction. The experimental sensitivity can be improved by analyzing the pulse shape of the detector signals with the aim to reject background events. This paper documents the algorithms developed before the data of Phase I were unblinded. The double escape peak (DEP) and Compton edge events of 2.615 MeV {gamma} rays from {sup 208}Tl decays as well as two-neutrino double beta (2{nu}{beta}{beta}) decays of {sup 76}Ge are used as proxies for 0{nu}{beta}{beta} decay. For BEGe detectors the chosen selection is based on a single pulse shape parameter. It accepts 0.92{+-}0.02 of signal-like events while about 80 % of the background events at Q{sub {beta}{beta}} =2039 keV are rejected. For semi-coaxial detectors three analyses are developed. The one based on an artificial neural network is used for the search of 0 {nu}{beta}{beta} decay. It retains 90 % of DEP events and rejects about half of the events around Q{sub {beta}{beta}}. The 2 {nu}{beta}{beta} events have an efficiency of 0.85 {+-}0.02 and the one for 0 {nu}{beta}{beta} decays is estimated to be 0.90{sup +0.05}{sub -0.09}. A second analysis uses a likelihood approach trained on Compton edge events. The third approach uses two pulse shape parameters. The latter two methods confirm the classification of the neural network since about 90 % of the data events rejected by the neural network are also removed by both of them. In general, the selection efficiency extracted from DEP events agrees well with those determined from Compton edge events or from 2{nu}{beta}{beta} decays. (orig.)

  6. Reval Hotel Lietuva Vilniuses : Konstitucijos pr. 20 / Piret Lindpere

    Index Scriptorium Estoniae

    Lindpere, Piret, 1963-

    2004-01-01

    Vilniuse hotelli "Lietuva" renoveerimine. Arhitektuurse projekti koostaja Rootsi arhitektuuribüroo AB SWECO (arhitektid Aare Saks, Nils Palm. Sisekujundus: Vaikla Disain AS (Katrin ja Argo Vaikla, Liis Lindvere, Peeter Loo). Kommenteerivad Argo ja Katrin Vaikla. 3 ill

  7. External meeting: KATRIN - direct measurement of neutrino masses with sub-eV sensitivity

    CERN Multimedia

    2007-01-01

    GENEVA UNIVERSITY - ECOLE DE PHYSIQUE Département de physique nucléaire et corspusculaire 24, Quai Ernest-Ansermet 1211 GENEVE 4 - Tél : 022 379 62 73 - Fax: 022 379 69 92 Wednesday 18 April 2007 PARTICLE PHYSICS SEMINAR at 17:00 - Stückelberg Auditorium KATRIN - direct measurement of neutrino masses with sub-eV sensitivity by Prof. Guido Drexlin, Karlsruhe Institute of Technology KIT The major scientific objective of the international Karlsruhe Tritum Neutrino (KATRIN) Experiment is the model independent measurement of the electron neutrino mass in tritium beta decay with a sensitivity of 200 meV. In the cosmological context, this allows an investigation of whether massive relic neutrinos left over from the Big Bang play a specific role as hot dark matter in the evolution of large scale structures of the universe. In particle physics KATRIN will allow for discrimination between different neutrino mass models (either of quasi-degenerate or hierarchical pattern).The key components of KATRIN comprise...

  8. Tritium ions in the Source and Transport Section (STS) of KATRIN

    Energy Technology Data Exchange (ETDEWEB)

    Klein, Manuel [Karlsruhe Institute of Technology (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    The KArlsruhe TRItium Neutrino (KATRIN) experiment aims at the model independent measurement of the electron neutrino mass. It is designed for a neutrino mass sensitivity of 0.2 eV (90% CL) after three years of measurement time. KATRIN measures the end point of the tritium beta decay spectrum using a MAC-E filter and a Windowless Gaseous Tritium Source (WGTS). While neutral tritium gas molecules are pumped through the WGTS, the decay electrons are guided to the detector with a magnetic field. Tritium ions, however, also leave the WGTS following the magnetic field lines. For KATRIN measurements it is imperative to prevent tritium ions from reaching the detector or the spectrometers, where they could decay and cause an indistinguishable background. Ion blocking measures are implemented by electric blocking potentials and electric dipoles to drift out trapped ions. Their effective operation will be tested during KATRIN commissioning measurements: The ion flux between STS and spectrometers can be measured with the Forward Beam Monitor (FBM). It offers a manipulator arm to introduce a detector into the flux tube. For ion detection, a Faraday Cup for the FBM is being designed and constructed.

  9. Unustagem kõvaketas, kasutagem operatiivmälu! / Katrin Ruus

    Index Scriptorium Estoniae

    Ruus, Katrin

    2008-01-01

    Valik Mart Viljuse, Katrin Teesi, Piret Räni, Reimo Võsa-Tangsoo, Merle ja Erki Kannuse ning rühmituste Puhas Rõõm ja Infotankistid viimaste aastate töödest näituseprojektina "Operatiivmälu" Pärnu Kunstnike Maja galeriis ja Pärnu Linnagaleriis. 11 ill

  10. The cryogenic pumping section of KATRIN and the test experiment TRAP

    CERN Document Server

    Eichelhardt, F

    2011-01-01

    The Karlsruhe Tritium Neutrino experiment (KATRIN) employs a Cryogenic Pumping Section (CPS) at ~ 4.5 K to suppress the tritium penetration into the spectrometers. A test experiment (TRAP - Tritium Argon frost Pump) has been set up to investigate the tritium pumping performance of the CPS.

  11. Tähistaevata ela kui kotis / Tõnis Eenmäe, Katrin Jõgi

    Index Scriptorium Estoniae

    Eenmäe, Tõnis

    2010-01-01

    Astronoom Tõnis Eenmäe küsib ja vastab ülemäärase valgustatuse ehk valgusreostuse kohta: mõjust elukeskkonnale, mõõtmisviisid. Hugo Teffneri gümnaasiumi õpilase Katrin Jõgi kiri loodushuvilisele sõbrale valgusreostusest

  12. V Las-Vegas so statujei Svobodõ / Katrin Sangla, Gerly Tinn, Tamara Korjagina ; interv. Alina Zelimhanova

    Index Scriptorium Estoniae

    Sangla, Katrin

    2002-01-01

    Küsitletakse soengukunsti maailmameistrivõistlustel Hair World 2002 Las-Vegases osalenud juuksur Tamara Korjaginat, jumestuskunstnik Katrin Sanglat ja moekunstnik Gerly Tinni võistluse kohta. Saavutasid võiskondlikus arvestuses kolmanda koha

  13. Mitigation of ^{42}Ar/^{42}K background for the GERDA Phase II experiment

    Science.gov (United States)

    Lubashevskiy, A.; Agostini, M.; Budjáš, D.; Gangapshev, A.; Gusev, K.; Heisel, M.; Klimenko, A.; Lazzaro, A.; Lehnert, B.; Pelczar, K.; Schönert, S.; Smolnikov, A.; Walter, M.; Zuzel, G.

    2018-01-01

    Background coming from the ^{42}Ar decay chain is considered to be one of the most relevant for the Gerda experiment, which searches for the neutrinoless double beta decay of ^{76}Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from ^{42}K, a progeny of ^{42}Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint at 3.5 MeV. Research and development on the suppression methods targeting this source of background were performed at the low-background test facility LArGe . It was demonstrated that by reducing ^{42}K ion collection on the surfaces of the broad energy germanium detectors in combination with pulse shape discrimination techniques and an argon scintillation veto, it is possible to suppress ^{42}K background by three orders of magnitude. This is sufficient for Phase II of the Gerda experiment.

  14. Gerda: A new 76Ge Double Beta Decay Experiment at Gran Sasso

    International Nuclear Information System (INIS)

    Simgen, Hardy

    2005-01-01

    In the new 76 Ge double beta decay experiment Gerda [I. Abt et al., arXiv hep-ex/0404039; Gerda proposal, to be submitted to the Gran Sasso scientific committee] bare diodes of enriched 76 Ge will be operated in highly pure liquid nitrogen or argon. The goal is to reduce the background around Q ββ =2039 keV below 10 -3 counts/(kg-bar keV-bar y). With presently available diodes from the Igex and HdMs experiments the current evidence for neutrinoless double beta decay [H.-V. Klapdor-Kleingrothaus, et al., Mod. Phys. Lett. A16 (2001) 2409ff] can unambigously be checked within one year of measurement

  15. First results of neutrinoless double beta decay search with the GERmanium Detector Array "GERDA"

    Science.gov (United States)

    Janicskó Csáthy, József

    2014-06-01

    The study of neutrinoless double beta decay is the most powerful approach to the fundamental question if the neutrino is a Majorana particle, i.e. its own anti-particle. The observation of the lepton number violating neutrinoless double beta decay would establish the Majorana nature of the neutrino. Until now neutrinoless double beta decay was not observed. The GERmanium Detector Array, GERDA is a double beta decay experiment located at the INFN Gran Sasso National Laboratory, Italy. GERDA operates bare Ge diodes enriched in 76Ge in liquid argon supplemented by a water shield. The exposure accumulated adds up to 21.6 kg· yr with a background level of 1.8 · 10-2 cts/(keV·kg·yr). The results of the Phase I of the experiment are presented and the preparation of the Phase II is briefly discussed.

  16. The search for 0νββ decay with the GERDA experiment: Status and prospects

    Science.gov (United States)

    Majorovits, B.

    2015-08-01

    The GERDA experiment is designed to search for neutrinoless double beta decay of 76Ge using HPGe detectors directly immersed into liquid argon. In its first phase the GERDA experiment has yielded a half life limit on this decay of T1/2 0 v>2.1 ṡ1025 . A background model has been developed. It explains the measured spectrum well, taking into account only components with distances to the detectors less then 2 cm. Competitive limits on Majoron accompanied double beta decay have been derived. Phase II of the experiment, now with additional liquid argon veto installed, is presently starting its commissioning phase. First commissioning spectra from calibration measurements are shown, proving that the liquid argon veto leads to a significant reduction of background events.

  17. Current experiments in germanium 0 ν β β search -- GERDA and MAJORANA

    Science.gov (United States)

    von Sturm, K.

    2015-01-01

    There are unanswered questions regarding neutrino physics that are of great interest for the scientific community. For example the absolute masses, the mass hierarchy and the nature of neutrinos are unknown up to now. The discovery of neutrinoless double beta decay (0νββ) would prove the existence of a Majorana mass, which would be linked to the half-life of the decay, and would in addition provide an elegant solution for the small mass of the neutrinos via the seesaw mechanism. Because of an existing discovery claim of 0νββ of 76Ge and the excellent energy resolution achievable, germanium is of special interest in the search for 0νββ . In this article the state of the art of germanium 0νββ search, namely the GERDA experiment and MAJORANA demonstrator, is presented. In particular, recent results of the GERDA collaboration, which strongly disfavour the above mentioned claim, are discussed.

  18. BEGe detectors in GERDA Phase I - performance, physics analysis and surface events

    Energy Technology Data Exchange (ETDEWEB)

    Lazzaro, Andrea [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2014-07-01

    The Phase I of the Gerda experiment, which has concluded its data taking in Summer 2013, was based on coaxial HPGe detectors already used for IGEX and HdM experiments. In the upcoming Phase II customized Broad Energy Germanium (BEGe) detectors will provide the major contribution to the total exposure. The first set of BEGe detectors has been deployed in Gerda since June 2012. The data collected in Phase I show the performance achieved in terms of spectroscopy and pulse shape discrimination. In particular the strongest background source, the {sup 42}K beta decay from the liquid argon surrounding the detectors, has been effectively rejected. The signals due to beta decay on the detector surface are indeed characterized by a longer charge collection time. This talk focuses on this key feature of the BEGe-PSD.

  19. Current experiments in germanium 0νββ search — GERDA and MAJORANA

    International Nuclear Information System (INIS)

    Von Sturm, K.

    2015-01-01

    There are unanswered questions regarding neutrino physics that are of great interest for the scientific community. For example the absolute masses, the mass hierarchy and the nature of neutrinos are unknown up to now. The discovery of neutrinoless double beta decay (0νββ) would prove the existence of a Majorana mass, which would be linked to the half-life of the decay, and would in addition provide an elegant solution for the small mass of the neutrinos via the seesaw mechanism. Because of an existing discovery claim of 0νββ of 76 Ge and the excellent energy resolution achievable, germanium is of special interest in the search for 0νββ. In this article the state of the art of germanium 0νββ search, namely the Gerda experiment and Majorana demonstrator, is presented. In particular, recent results of the Gerda collaboration, which strongly disfavour the above mentioned claim, are discussed.

  20. Signal and background studies for the search of neutrinoless double beta decay in GERDA

    International Nuclear Information System (INIS)

    Agostini, Matteo

    2013-01-01

    The GERDA experiment searches for the neutrinoless double beta decay in Ge-76, by operating bare HPGe detectors in ultra-pure liquid Ar. This dissertation presents a first decomposition of the background measured in the current data-taking phase. The background at the energy of interest was found to be dominated by 214 Bi, 208 Tl and 42 K gamma-rays, with secondary contributions from 42 K and 214 Bi beta-rays, and 210 Po alpha-rays. For the forthcoming upgrade of the apparatus, a new HPGe detector design (BEGe) has been studied, with focus on its capability of suppressing the identified backgrounds through pulse shape analysis. This included the development of a comprehensive modeling of the detectors and the experimental characterization of their response to surface interactions. The achieved results show that GERDA can improve the present limit on the neutrinoless double beta decay half-life by an order of magnitude.

  1. TAB sümpoosion tõi Kultuurikatlasse üle 300 inimese = TAB symposium attracted more than 300 participants / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2011-01-01

    8.-11. septembrini 2011 toimunud 1. Tallinna arhitektuuribiennaali sümpoosionist, mille teemaks oli maastikuurbanism (landscape urbanism). Kuraator Katrin Koov. Esinejatest, ettekannetest, maasikuurbanismist

  2. MaGe: a Monte Carlo framework for the Gerda and Majorana double beta decay experiments

    International Nuclear Information System (INIS)

    Bauer, M; Belogurov, S; Chan, Yd; Descovich, M; Detwiler, J; Di Marco, M; Fujikawa, B; Franco, D; Gehman, V; Henning, R; Hudek, K; Johnson, R; Jordan, D; Kazkaz, K; Klimenko, A; Knapp, M; Kroeninger, K; Lesko, K; Liu, X; Marino, M; Mokhtarani, A; Pandola, L; Perry, M; Poon, A; Radford, D; Tomei, C; Tull, C

    2006-01-01

    The Gerda and Majorana projects, both searching for the neutrinoless double beta-decay of 76 Ge, are developing a joint Monte-Carlo simulation framework called MaGe. Such an approach has many benefits: the workload for the development of general tools is shared between more experts, the code is tested in more detail, and more experimental data is made available for validation

  3. First results of GERDA Phase II and consistency with background models

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode1, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Selivanenko, O.; Shevzik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-01-01

    The GERDA (GERmanium Detector Array) is an experiment for the search of neutrinoless double beta decay (0νββ) in 76Ge, located at Laboratori Nazionali del Gran Sasso of INFN (Italy). GERDA operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase II of data-taking started in Dec 2015 and is currently ongoing. In Phase II 35 kg of germanium detectors enriched in 76Ge including thirty newly produced Broad Energy Germanium (BEGe) detectors is operating to reach an exposure of 100 kg·yr within about 3 years data taking. The design goal of Phase II is to reduce the background by one order of magnitude to get the sensitivity for T1/20ν = O≤ft( {{{10}26}} \\right){{ yr}}. To achieve the necessary background reduction, the setup was complemented with LAr veto. Analysis of the background spectrum of Phase II demonstrates consistency with the background models. Furthermore 226Ra and 232Th contamination levels consistent with screening results. In the first Phase II data release we found no hint for a 0νββ decay signal and place a limit of this process T1/20ν > 5.3 \\cdot {1025} yr (90% C.L., sensitivity 4.0·1025 yr). First results of GERDA Phase II will be presented.

  4. Production, characterization and operation of {sup 76}Ge enriched BEGe detectors in GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Bode, T.; Budjas, D.; Janicsko Csathy, J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Allardt, M.; Barros, N.; Domula, A.; Lehnert, B.; Wester, T.; Wilsenach, H.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Andreotti, E. [Institute for Reference Materials and Measurements, Geel (Belgium); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; D' Andrea, V.; Ioannucci, L.; Junker, M.; Laubenstein, M.; Macolino, C.; Nisi, S.; Zavarise, P. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Gurentsov, V.; Inzhechik, L.V.; Kazalov, V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Baudis, L.; Benato, G.; Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Bauer, C.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Strecker, H.; Wagner, V.; Wegmann, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Becerici-Schmidt, N.; Caldwell, A.; Liao, H.Y.; Majorovits, B.; O' Shaughnessy, C.; Palioselitis, D.; Schulz, O.; Vanhoefer, L. [Max-Planck-Institut fuer Physik, Munich (Germany); Bellotti, E.; Pessina, G. [Universita Milano Bicocca, Dipartimento di Fisica, Milan (Italy); INFN Milano Bicocca, Milan (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Sada, C.; Von Sturm, K. [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padua (Italy); INFN Padova, Padua (Italy); Borowicz, D. [Jagiellonian University, Institute of Physics, Cracow (Poland); Joint Institute for Nuclear Research, Dubna (Russian Federation); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Shevchik, E.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C.; Gotti, C. [INFN Milano Bicocca, Milan (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C.; Schuetz, A.K. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Misiaszek, M.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Cracow (Poland); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Hult, M.; Lutter, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Klimenko, A.; Lubashevskiy, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Lippi, I.; Stanco, L.; Ur, C.A. [INFN Padova, Padua (Italy); Pandola, L. [INFN Laboratori Nazionali del Sud, Catania (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano, Dipartimento di Fisica, Milan (Italy); INFN Milano (Italy); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Collaboration: GERDA Collaboration

    2015-02-01

    The GERmanium Detector Array (GERDA) at the Gran Sasso Underground Laboratory (LNGS) searches for the neutrinoless double beta decay (0νββ) of {sup 76}Ge. Germanium detectors made of material with an enriched {sup 76}Ge fraction act simultaneously as sources and detectors for this decay. During Phase I of the experiment mainly refurbished semi-coaxial Ge detectors from former experiments were used. For the upcoming Phase II, 30 new {sup 76}Ge enriched detectors of broad energy germanium (BEGe)- type were produced. A subgroup of these detectors has already been deployed in GERDA during Phase I. The present paper reviews the complete production chain of these BEGe detectors including isotopic enrichment, purification, crystal growth and diode production. The efforts in optimizing the mass yield and in minimizing the exposure of the {sup 76}Ge enriched germanium to cosmic radiation during processing are described. Furthermore, characterization measurements in vacuum cryostats of the first subgroup of seven BEGe detectors and their long-term behavior in liquid argon are discussed. The detector performance fulfills the requirements needed for the physics goals of GERDA Phase II. (orig.)

  5. In-situ measurement of the light attenuation in liquid argon in the GERDA cryostat

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, Birgit [TU Dresden, Institut fuer Kern- und Teilchenphysik (Germany); Collaboration: GERDA-Collaboration

    2016-07-01

    GERDA is an experiment searching for neutrinoless double beta decay in {sup 76}Ge. It operates the enriched germanium detectors bare in liquid argon (LAr), which serves both as a coolant and a shield for external radiation. Phase II of GERDA aims for an exposure of 100 kg . yr with a background index (BI) of 10{sup -3} cts/(kg . yr . keV). One of the major improvements to further reduce the BI comes from the instrumentation of the LAr to readout its scintillation light. The attenuation of the scintillation light in LAr limits the effective active volume of the LAr veto and is therefore a key parameter to characterize the instrumentation. In order to measure the light attenuation in LAr, a setup was designed that could be deployed directly into the GERDA cryostat. This setup contains a movable beta source and a PMT to detect the scintillation light at different distances. The talk will present the acquired data as well as a detailed description of the performed analysis technique and the current results.

  6. Production, characterization and operation of {sup 76}Ge enriched BEGe detectors in GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M. [Physik Department and Excellence Cluster Universe, Technische Universität München, Munich (Germany); Allardt, M. [Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden (Germany); Andreotti, E. [Institute for Reference Materials and Measurements, Geel (Belgium); Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen (Germany); Bakalyarov, A. M. [National Research Centre “Kurchatov Institute”, Moscow (Russian Federation); Balata, M. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); and others

    2015-02-03

    The GERmanium Detector Array (Gerda) at the Gran Sasso Underground Laboratory (LNGS) searches for the neutrinoless double beta decay (0νββ) of {sup 76}Ge. Germanium detectors made of material with an enriched {sup 76}Ge fraction act simultaneously as sources and detectors for this decay. During Phase I of theexperiment mainly refurbished semi-coaxial Ge detectors from former experiments were used. For the upcoming Phase II, 30 new {sup 76}Ge enriched detectors of broad energy germanium (BEGe)-type were produced. A subgroup of these detectors has already been deployed in Gerda during Phase I. The present paper reviews the complete production chain of these BEGe detectors including isotopic enrichment, purification, crystal growth and diode production. The efforts in optimizing the mass yield and in minimizing the exposure of the {sup 76}Ge enriched germanium to cosmic radiation during processing are described. Furthermore, characterization measurements in vacuum cryostats of the first subgroup of seven BEGe detectors and their long-term behavior in liquid argon are discussed. The detector performance fulfills the requirements needed for the physics goals of Gerda Phase II.

  7. Search for neutrinoless double beta decay of Ge-76 with the GERmanium Detector Array '' GERDA ''

    International Nuclear Information System (INIS)

    Brugnera, R.

    2009-01-01

    The study of neutrinoless double beta decay (DBD) is the most powerful approach to the fundamental question if the neutrino is a Majorana particle, i.e. its own anti-particle. The observation of neutrinoless DBD would not only establish the Majorana nature of the neutrino but also represent a determination of its effective mass if the nuclear matrix element is given. So far, the most sensitive results have been obtained with Ge-76, and the group of Klapdor-Kleingrothaus has made a claim of discovery. Future experiments have to reduce radioactive backgrounds to increase the sensitivity. '' GERDA '' is a new double beta-decay experiment which is currently under construction in the INFN Gran Sasso National Laboratory, Italy. It is implementing a new shielding concept by operating bare Ge diodes - enriched in Ge-76 - in high purity liquid argon supplemented by a water shield. The aim of '' GERDA '' is to verify or refute the recent claim of discovery, and, in a second phase, to achieve a two orders of magnitude lower background index than recent experiments, increasing the sensitive mass and reaching exposure of 100 kg yr. It be will discuss design, physics reach, and status of construction of '' GERDA '', and present results from various R efforts including long term stability of bare Ge diodes in cryogenic liquids, material screening, cryostat performance, detector segmentation, cryogenic precision electronics, safety aspects, and Monte Carlo simulations. (author)

  8. Dead layer and active volume determination for GERDA Phase II detectors

    Energy Technology Data Exchange (ETDEWEB)

    Lehnert, Bjoern [TU Dresden (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    The GERDA experiment investigates the neutrinoless double beta decay of {sup 76}Ge and is currently running Phase I of its physics program. Using the same isotope as the Heidelberg Moscow (HDM) experiment, GERDA aims to directly test the claim of observation by a subset of the HDM collaboration. For the update to Phase II of the experiment in 2013, the collaboration organized the production of 30 new Broad Energy Germanium (BEGe) type detectors from original 35 kg enriched material and tested their performance in the low background laboratory HADES in SCK.CEN, Belgium. With additional 20 kg of detectors, GERDA aims to probe the degenerated hierarchy scenario. One of the crucial detector parameters is the active volume (AV) fraction which directly enters into all physics analysis. This talk presents the methodology of dead layer and AV determination with different calibration sources such as {sup 241}Am, {sup 133}Ba, {sup 60}Co and {sup 228}Th and the results obtained for the new Phase II detectors. Furthermore, the AV fraction turned out to be the largest systematic uncertainty in the analysis of Phase I data which makes it imperative to reduce its uncertainty for Phase II. This talk addresses the major contributions to the AV uncertainty and gives an outlook for improvements in Phase II analysis.

  9. Production, characterization and operation of Ge enriched BEGe detectors in GERDA

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Andreotti, E.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Domula, A.; Egorov, V.; Falkenstein, R.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Misiaszek, M.; Nemchenok, I.; Nisi, S.; O'Shaughnessy, C.; Palioselitis, D.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Schönert, S.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Strecker, H.; Ur, C. A.; Vanhoefer, L.; Vasenko, A. A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2015-02-01

    The GERmanium Detector Array ( Gerda) at the Gran Sasso Underground Laboratory (LNGS) searches for the neutrinoless double beta decay () of Ge. Germanium detectors made of material with an enriched Ge fraction act simultaneously as sources and detectors for this decay. During Phase I of theexperiment mainly refurbished semi-coaxial Ge detectors from former experiments were used. For the upcoming Phase II, 30 new Ge enriched detectors of broad energy germanium (BEGe)-type were produced. A subgroup of these detectors has already been deployed in Gerda during Phase I. The present paper reviews the complete production chain of these BEGe detectors including isotopic enrichment, purification, crystal growth and diode production. The efforts in optimizing the mass yield and in minimizing the exposure of the Ge enriched germanium to cosmic radiation during processing are described. Furthermore, characterization measurements in vacuum cryostats of the first subgroup of seven BEGe detectors and their long-term behavior in liquid argon are discussed. The detector performance fulfills the requirements needed for the physics goals of Gerda Phase II.

  10. The Aspergillus fumigatus SchASCH9 kinase modulates SakAHOG1 MAP kinase activity and it is essential for virulence.

    Science.gov (United States)

    Alves de Castro, Patrícia; Dos Reis, Thaila Fernanda; Dolan, Stephen K; Oliveira Manfiolli, Adriana; Brown, Neil Andrew; Jones, Gary W; Doyle, Sean; Riaño-Pachón, Diego M; Squina, Fábio Márcio; Caldana, Camila; Singh, Ashutosh; Del Poeta, Maurizio; Hagiwara, Daisuke; Silva-Rocha, Rafael; Goldman, Gustavo H

    2016-11-01

    The serine-threonine kinase TOR, the Target of Rapamycin, is an important regulator of nutrient, energy and stress signaling in eukaryotes. Sch9, a Ser/Thr kinase of AGC family (the cAMP-dependent PKA, cGMP- dependent protein kinase G and phospholipid-dependent protein kinase C family), is a substrate of TOR. Here, we characterized the fungal opportunistic pathogen Aspergillus fumigatus Sch9 homologue (SchA). The schA null mutant was sensitive to rapamycin, high concentrations of calcium, hyperosmotic stress and SchA was involved in iron metabolism. The ΔschA null mutant showed increased phosphorylation of SakA, the A. fumigatus Hog1 homologue. The schA null mutant has increased and decreased trehalose and glycerol accumulation, respectively, suggesting SchA performs different roles for glycerol and trehalose accumulation during osmotic stress. The schA was transcriptionally regulated by osmotic stress and this response was dependent on SakA and MpkC. The double ΔschA ΔsakA and ΔschA ΔmpkC mutants were more sensitive to osmotic stress than the corresponding parental strains. Transcriptomics and proteomics identified direct and indirect targets of SchA post-exposure to hyperosmotic stress. Finally, ΔschA was avirulent in a low dose murine infection model. Our results suggest there is a complex network of interactions amongst the A. fumigatus TOR, SakA and SchA pathways. © 2016 John Wiley & Sons Ltd.

  11. Application of the A/E pulse shape discrimination method to first Ge-76 enriched BEGe detectors operated in GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Lazzaro, Andrea; Agostini, Matteo; Budjas, Dusan; Schoenert, Stefan [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    In 2013 the Gerda experiment will be upgraded to its second phase with more than double of the current {sup 76}Ge mass. The additional diodes are custom made Broad Energy Germanium (BEGe) detectors. This design has been chosen to enhance the pulse shape discrimination (PSD) capability, with respect to the Phase I coaxial detectors. The goal of Phase II is to improve by one order of magnitude the current background index; the PSD will bring a major contribution to this result. Since summer 2012 the first set of five enriched BEGe detectors are operated in Gerda Phase I. This offers us the possibility to test the PSD performances and the signal analysis in an environment as close as possible to the Gerda Phase II configuration. In this talk I present the A/E analysis, the calibration of the cut parameters and the results in terms of background reduction for the data taken with these enriched BEGe.

  12. GERDA, a GERmanium Detector Array for the search for neutrinoless ββ decay in 76Ge

    International Nuclear Information System (INIS)

    Pandola, L.; Tomei, C.

    2006-01-01

    The GERDA project, searching for neutrinoless double beta-decay of 76Ge with enriched germanium detectors submerged in a cryogenic bath, has been approved for installation at the Gran Sasso National Laboratory (LNGS), Italy. The GERDA technique is aiming at a dramatic reduction of the background due to radioactive contaminations of the materials surrounding the detectors. This will lead to a sensitivity of about 1026 years on the half-life of neutrinoless double beta decay. Already in the first phase of the experiment, GERDA will be able to investigate with high statistical significance the claimed evidence for neutrinoless double beta decay of 76Ge based on the data of the Heidelberg-Moscow experiment

  13. Reduction in cryptosporidiosis associated with introduction of enhanced filtration of drinking water at Loch Katrine, Scotland.

    Science.gov (United States)

    Pollock, K G J; Young, D; Robertson, C; Ahmed, S; Ramsay, C N

    2014-01-01

    Previous evidence has suggested an association between cryptosporidiosis and consumption of unfiltered drinking water from Loch Katrine in Scotland. Before September 2007, the water was only micro-strained and chlorinated; however, since that time, coagulation and rapid gravity filtration have been installed. In order to determine risk factors associated with cryptosporidiosis, including drinking water, we analysed data on microbiologically confirmed cases of cryptosporidiosis from 2004 to 2010. We identified an association between the incidence of cryptosporidiosis and unfiltered Loch Katrine drinking water supplied to the home (odds ratio 1.86, 95% confidence interval 1.11-3.11, P = 0.019). However, while filtration appears to be associated with initially reduced rates of cryptosporidiosis, evidence suggests it may paradoxically make those consumers more susceptible to other transmission routes in the long-term. These findings support implementation of similar treatment for other unfiltered drinking-water supplies, as a means of reducing cryptosporidiosis associated with drinking water.

  14. Commissioning of the KATRIN Raman system for monitoring of the WGTS gas composition

    Energy Technology Data Exchange (ETDEWEB)

    Fischer, Sebastian; Bornschein, Beate; James, Timothy M.; Off, Andreas; Rupp, Simone; Seitz-Moskaliuk, Hendrik; Sturm, Michael; Wecker, Matthias [Karlsruhe Institute of Technology (Germany); Schloesser, Magnus [Universidad Complutense de Madrid (Spain); Karlsruhe Institute of Technology (Germany); Telle, Helmut H. [Universidad Complutense de Madrid (Spain)

    2015-07-01

    The Karlsruhe Tritium Neutrino (KATRIN) Experiment aims at determining the neutrino mass by the investigation of the endpoint energy-region of the tritium β-spectrum. Tritium in its molecular form ({sup 3}H{sub 2}) is injected into the Windowless Gaseous Tritium Source (WGTS) of KATRIN, and thus molecular effects, e.g. ro-vibrational excitations levels, have to be considered in the neutrino mass analysis in order to reach the design sensitivity of 200 meV/c{sup 2} (90% C.L.). As the source gas also contains impurities of the other hydrogen isotopes protium and deuterium - giving rise to different molecular excitation levels - continuous and precise monitoring of the source gas composition is required. Raman spectroscopy is the method of choice for this task as it is an inline and non-contact analysis method. In this talk, results from the recently performed commissioning phase of the KATRIN Raman system are presented: over the course of more than 50 days, consecutive Raman spectra (recorded with acquisition times of 60 s) of circulating tritium gas were acquired and analysed in real-time. In addition, valuable information on the system performance during long-term operation was gained.

  15. Limit on the radiative neutrinoless double electron capture of {sup 36}Ar from GERDA Phase I

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Balata, M.; D' Andrea, V.; Di Vacri, A.; Junker, M.; Laubenstein, M. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); Allardt, M.; Domula, A.; Lehnert, B.; Schneider, B.; Wester, T.; Wilsenach, H.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Barabanov, I.; Bezrukov, L.; Doroshkevich, E.; Fedorova, O.; Gurentsov, V.; Kazalov, V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Moseev, P.; Selivanenko, O.; Veresnikova, A.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barros, N. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); University of Pennsylvania, Philadelphia, PA (United States); Baudis, L.; Benato, G.; Kish, A.; Miloradovic, M.; Mingazheva, R.; Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Bauer, C.; Hakenmueller, J.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Stepaniuk, M.; Wagner, V.; Wegmann, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Bellotti, E. [Universita Milano Bicocca, Dipartimento di Fisica, Milan (Italy); INFN Milano Bicocca, Milan (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics NRC ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Medinaceli, E.; Sada, C.; Sturm, K. von [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padua (Italy); INFN Padova, Padua (Italy); Bode, T.; Csathy, J.J.; Lazzaro, A.; Schoenert, S.; Wiesinger, C. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Borowicz, D. [Jagiellonian University, Institute of Physics, Krakow (Poland); Joint Institute for Nuclear Research, Dubna (Russian Federation); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Caldwell, A.; Gooch, C.; Kneissl, R.; Liao, H.Y.; Majorovits, B.; Palioselitis, D.; Schulz, O.; Vanhoefer, L. [Max-Planck-Institut fuer Physik, Munich (Germany); Cattadori, C.; Salamida, F. [INFN Milano Bicocca, Milan (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics NRC ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C.; Schuetz, A.K. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Misiaszek, M.; Panas, K.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Krakow (Poland); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Hemmer, S.; Lippi, I.; Stanco, L. [INFN Padova, Padua (Italy); Hult, M.; Lutter, G. [European Commission, JRC-Geel, Geel (Belgium); Inzhechik, L.V. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Moscow Institute of Physics and Technology, Moscow (Russian Federation); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); International University for Nature, Society and Man ' ' Dubna' ' , Dubna (Russian Federation); Lubashevskiy, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Macolino, C. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); LAL, CNRS/IN2P3, Universite Paris-Saclay, Orsay (France); Pandola, L. [INFN Laboratori Nazionali del Sud, Catania (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano, Dipartimento di Fisica, Milan (Italy); INFN Milano (Italy); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Collaboration: GERDA collaboration

    2016-12-15

    Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of {sup 36}Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array (Gerda) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of {sup 36}Ar was established: T{sub 1/2} > 3.6 x 10{sup 21} years at 90% CI. (orig.)

  16. Results on decay with emission of two neutrinos or Majorons in Ge from GERDA Phase I

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Ur, C. A.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2015-09-01

    A search for neutrinoless decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices were searched for. No signals were found and lower limits of the order of 10 yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with Ge. A new result for the half-life of the neutrino-accompanied decay of Ge with significantly reduced uncertainties is also given, resulting in yr.

  17. Limit on Neutrinoless Double Beta Decay of 76Ge by GERDA

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Andreotti, E.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Heider, M. Barabè; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Cossavella, F.; Demidova, E. V.; Domula, A.; Egorov, V.; Falkenstein, R.; Ferella, A.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Guthikonda, K. K.; Hampel, W.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Machado, A. A.; Macolino, C.; Majorovits, B.; Maneschg, W.; Misiaszek, M.; Nemchenok, I.; Nisi, S.; Shaughnessy, C. O.'.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Strecker, H.; Tarka, M.; Ur, C. A.; Vasenko, A. A.; Volynets, O.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    The Gerda experiment at the Laboratori Nazionali del Gran Sasso in Italy uses germanium detectors made from material with an enriched 76Ge isotope fraction to search for neutrinoless double beta decay of this nucleus. Applying a blind analysis we find no signal after an exposure of 21.6 kg·yr and a background of about 0.01 cts/(keV·kg·yr). A half-life limit of Tov1/2> 2.1 · 1025 yr (90% C.L.) is extracted. The previous claim of a signal for 76Ge is excluded with 99% probability in a model independent way.

  18. Limit on the radiative neutrinoless double electron capture of ^{36}Ar from GERDA Phase I

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Csáthy, J. Janicskó; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2016-12-01

    Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of ^{36}Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array ( Gerda) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of ^{36}Ar was established: T_{1/2} > 3.6 × 10^{21} years at 90% CI.

  19. Active background suppression with the liquid argon scintillation veto of GERDA Phase II

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; Di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Selivanenko, O.; Shevzik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-09-01

    The observation of neutrinoless double beta decay would allow to shed light onto the particle nature of neutrinos. Gerda is aiming to perform a background-free search for this process using high purity germanium detectors enriched in 76Ge operated in liquid argon. This goal relies on the application of active background suppression techniques. A low background light instrumentation has been installed for Phase II to detect events with coincident energy deposition in the nearby liquid argon. The intended background index of ˜10-3 cts/(keV·ky·yr) has been confirmed.

  20. Enesetapp - rääkida või vaikida? / Gerda Kordemets, Mart Laisk ja Merike Sisask ; intervjueerinud Tiina Jõgeda

    Index Scriptorium Estoniae

    Kordemets, Gerda, 1960-

    2010-01-01

    Kas noorte enesetappudest rääkimine toob matkijaid või on teemast rääkimine vajalik? Suitsiiditeemaga kokku puutunud Mart Laisk, Eesti Televisiooni uue sarja "Klass: elu pärast" üks režissööre Gerda Kordemets ja suitsidoloog Merike Sisask arutlevad

  1. Investigation of n{sup +} surface events in HPGe detectors for liquid argon background rejection in GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Lehnert, Bjoern [TU-Dresden, Dresden (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    The GERDA experiment is searching for neutrinoless double beta decay (0νββ) in {sup 76}Ge using an array of germanium detectors immersed in liquid argon (LAr). Phase II of the experiment aims to improve the background level by a factor 10 in order to reach 10{sup -3} counts / (kg.keV.yr). A strong suppression technique is required to suppress the intrinsic LAr background of {sup 42}Ar/{sup 42}K. 30 newly produced p-type Broad Energy Germanium (BEGe) detectors will be deployed in Phase II. The n{sup +} electrode of the GERDA BEGe detectors is covering 96-98 % of the surface and is between 0.5 and 1.2 mm thick. Betas from the {sup 42}K decay can penetrated the detector surface and deposit energies within the 0νββ region. Experiences from GERDA Phase I show that these surface events are the dominate background component without suppression. Energy depositions inside the n{sup +} layer create pulse shapes that are slower than those from interactions in the bulk. This talk presents a rejection technique for those events. The signal development inside the n{sup +} layer is modeled and applied in Geant4 Monte Carlo simulations. The simulations are compared with data for {sup 241}Am and {sup 90}Sr calibration source measurements. The suppression capabilities are extrapolated for {sup 42}K in GERDA Phase II.

  2. The Gerda experiment for the search of 0{nu}{beta}{beta} decay in {sup 76}Ge

    Energy Technology Data Exchange (ETDEWEB)

    Ackermann, K.H.; Altmann, M.; Becerici-Schmidt, N.; Caldwell, A.; Cossavella, F.; Lenz, D.; Liao, H.; Majorovits, B.; Mayer, S.; O' Shaughnessy, C.; Schubert, J.; Schulz, O.; Seitz, H.; Stelzer, F.; Vogt, S.; Volynets, O. [Max-Planck-Institut fuer Physik, Muenchen (Germany); Agostini, M.; Bode, T.; Budjas, D.; Janicsko Csathy, J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Allardt, M.; Barros, N.; Domula, A.; Lehnert, B.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Andreotti, E. [Institute for Reference Materials and Measurements, Geel (Belgium); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; Ioannucci, L.; Junker, M.; Laubenstein, M.; Nisi, S.; Pandola, L. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Denisov, A.; Gurentsov, V.; Kianovsky, S.; Kusminov, V.; Lubsandorzhiev, B.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barnabe Heider, M. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); CEGEP St-Hyacinthe, Quebec (Canada); Baudis, L.; Benato, G.; Ferella, A.; Froborg, F.; Guthikonda, K.K.; Tarka, M.; Walter, M. [Physik Institut der Universitaet Zuerich, Zuerich (Switzerland); Bauer, C.; Hampel, W.; Heisel, M.; Heusser, G.; Hofmann, W.; Kankanyan, R.; Kihm, T.; Kiko, J.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Lubashevskiy, A.; Machado, A.A.; Maneschg, W.; Oehm, J.; Salathe, M.; Schreiner, J.; Schwan, U.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Strecker, H.; Wagner, V.; Wegmann, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Bellotti, E. [Universita Milano Bicocca, Dipartimento di Fisica, Milano (Italy); INFN Milano Bicocca, Milano (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Sada, C. [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padova (Italy); INFN Padova, Padova (Italy); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Shevchik, E.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C. [INFN Milano Bicocca, Milano (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Chkvorets, O. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Laurentian University, Sudbury (Canada); D' Andragora, A. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); Brookhaven National Laboratory, Upton, NY (United States); Di Vacri, A. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); University ' ' G. d' Annunzio' ' di Chieti-Pescara, Department of Neurosciences and Imaging, Chieti (Italy); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Knapp, M.; Niedermeier, L.; Schmitt, C.; Sturm, K. von [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Cracow (Poland); Gangapshev, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gasparro, J. [Institute for Reference Materials and Measurements, Geel (Belgium); National Physical Laboratory, Teddigton (United Kingdom); Gazzana, S. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Gonzalez de Orduna, R.; Hult, M.; Marissens, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Inzhechik, L.V. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Moscow Institute of Physics and Technology, Moscow (Russian Federation); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Kroeninger, K. [Max-Planck-Institut fuer Physik, Muenchen (Germany); U. Goettingen, II. Physikalisches Institut, Goettingen (Germany); U. Siegen, Department Physik, Siegen (Germany); Lippi, I.; Rossi Alvarez, C.; Stanco, L.; Ur, C.A. [INFN Padova, Padova (Italy); Liu, J. [Max-Planck-Institut fuer Physik, Muenchen (Germany); University of Tokyo, Kavli IPMU, Tokyo (Japan); Liu, X. [Shanghai Jiaotong University, Shanghai (China); Meierhofer, G. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); TUeV-SUeD, Muenchen (Germany); Peiffer, P. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Karlsruhe Institute of Technology (KIT), Karlsruhe (Germany); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano (Italy); INFN Milano, Dipartimento di Fisica, Milano (Italy); Ritter, F. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Robert Bosch GmbH, Reutlingen (Germany); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Trunk, U. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); DESY, Photon-Science Detector Group, Hamburg (Germany); Zavarise, P. [LNGS, INFN Laboratori Nazionali del Gran Sasso, Assergi (Italy); University of L' Aquila, Dipartimento di Fisica, L' Aquila (Italy)

    2013-03-15

    The Gerda collaboration is performing a search for neutrinoless double beta decay of {sup 76}Ge with the eponymous detector. The experiment has been installed and commissioned at the Laboratori Nazionali del Gran Sasso and has started operation in November 2011. The design, construction and first operational results are described, along with detailed information from the R and D phase. (orig.)

  3. Signal and background studies for the search of neutrinoless double beta decay in GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, Matteo

    2013-04-24

    The GERDA experiment searches for the neutrinoless double beta decay in Ge-76, by operating bare HPGe detectors in ultra-pure liquid Ar. This dissertation presents a first decomposition of the background measured in the current data-taking phase. The background at the energy of interest was found to be dominated by {sup 214}Bi, {sup 208}Tl and {sup 42}K gamma-rays, with secondary contributions from {sup 42}K and {sup 214}Bi beta-rays, and {sup 210}Po alpha-rays. For the forthcoming upgrade of the apparatus, a new HPGe detector design (BEGe) has been studied, with focus on its capability of suppressing the identified backgrounds through pulse shape analysis. This included the development of a comprehensive modeling of the detectors and the experimental characterization of their response to surface interactions. The achieved results show that GERDA can improve the present limit on the neutrinoless double beta decay half-life by an order of magnitude.

  4. Mitigation of {sup 42}Ar/{sup 42}K background for the GERDA Phase II experiment

    Energy Technology Data Exchange (ETDEWEB)

    Lubashevskiy, A.; Klimenko, A.; Smolnikov, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Joint Institute for Nuclear Research, Dubna (Russian Federation); Agostini, M. [Gran Sasso Science Institute, L' Aquila (Italy); Budjas, D.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department E15, Munich (Germany); Gangapshev, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research, Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Technische Universitaet Muenchen, Physik Department E15, Munich (Germany); Russian Research Center Kurchatov Institute, Moscow (Russian Federation); Heisel, M. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Lehnert, B. [Institut fuer Kern- und Teilchenphysik Technische Universitaet Dresden, Dresden (Germany); Carleton University, Physics Department, Ottawa (Canada); Pelczar, K. [Jagellonian University, Institute of Physics, Cracow (Poland); INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi (Italy); Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Zuzel, G. [Jagellonian University, Institute of Physics, Cracow (Poland)

    2018-01-15

    Background coming from the {sup 42}Ar decay chain is considered to be one of the most relevant for the Gerda experiment, which searches for the neutrinoless double beta decay of {sup 76}Ge. The sensitivity strongly relies on the absence of background around the Q-value of the decay. Background coming from {sup 42}K, a progeny of {sup 42}Ar, can contribute to that background via electrons from the continuous spectrum with an endpoint at 3.5 MeV. Research and development on the suppression methods targeting this source of background were performed at the low-background test facility LArGe. It was demonstrated that by reducing {sup 42}K ion collection on the surfaces of the broad energy germanium detectors in combination with pulse shape discrimination techniques and an argon scintillation veto, it is possible to suppress {sup 42}K background by three orders of magnitude. This is sufficient for Phase II of the Gerda experiment. (orig.)

  5. Production and characterization of 228Th calibration sources with low neutron emission for GERDA

    Science.gov (United States)

    Baudis, L.; Benato, G.; Carconi, P.; Cattadori, C.; De Felice, P.; Eberhardt, K.; Eichler, R.; Petrucci, A.; Tarka, M.; Walter, M.

    2015-12-01

    The GERDA experiment at the Laboratori Nazionali del Gran Sasso (LNGS) searches for the neutrinoless double beta decay of 76Ge. In view of the GERDA Phase II data collection, four new 228Th radioactive sources for the calibration of the germanium detectors enriched in 76Ge have been produced with a new technique, leading to a reduced neutron emission rate from (α, n) reactions. The gamma activities of the sources were determined with a total uncertainty of ~4% using an ultra-low background HPGe detector operated underground at LNGS. The neutron emission rate was determined using a low background LiI(Eu) detector and a 3He counter at LNGS. In both cases, the measured neutron activity is ~10-6 n/(sṡBq), with a reduction of about one order of magnitude with respect to commercially available 228Th sources. Additionally, a specific leak test with a sensitivity to leaks down to ~10 mBq was developed to investigate the tightness of the stainless steel capsules housing the sources after their use in cryogenic environment.

  6. GERDA phase II detectors: Behind the production and characterisation at low background conditions

    Energy Technology Data Exchange (ETDEWEB)

    Maneschg, Werner [Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany); Collaboration: GERDA Collaboration; and others

    2013-08-08

    The low background GERmanium Detector Array (GERDA) at Laboratori Nazionali del Gran Sasso (LNGS) is designed to search for the rare neutrinoless double beta decay (0νββ) in {sup 76}Ge. Bare germanium diodes are operated in liquid argon which is used as coolant, as passive and soon active as well shield against external radiation. Currently, Phase I of the experiment is running using ∼15 kg of co-axial High Purity Germanium diodes. In order to increase the sensitivity of the experiment 30 Broad Energy Germanium (BEGe) diodes will be added within 2013. This presentation reviews the production chain of the new BEGe detectors from isotopic enrichment to diode production and testing. As demonstrated all steps were carefully planned in order to minimize the exposure of the enriched germanium to cosmic radiation. Following this premise, acceptance and characterisation measurement of the newly produced diodes have been performed within the HEROICA project in the Belgian underground laboratory HADES close to the diode manufacturer. The test program and the results from a subset of the recently terminated GERDA Phase II BEGe survey will be presented.

  7. GERDA and the search for neutrinoless double beta decay: first results and perspectives

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, Matteo [Physik Department and Excellence Cluster Universe, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2014-07-01

    Neutrinoless double beta decay is a lepton-number-violating nuclear transition predicted by several extensions of the Standard Model. The Gerda experiment searches for this transition in {sup 76}Ge by operating bare Ge detectors in liquid Ar. The talk focuses on the results of data acquired during Phase I of the experiment, in which 21.6 kg.yr of exposure were accumulated with a background index of about 0.01 cts/(keV.kg.yr). No signal was observed and a lower limit was derived for the half-life of neutrinoless double beta decay of {sup 76}Ge, T{sub 1/2} > 2.1 . 10{sup 25} yr (90% C.L.). The experiment is currently undergoing a major upgrade in preparation for the next phase of data taking. Thanks to an increased target mass, an improved energy resolution and the introduction of novel background reduction techniques, the sensitivity of Gerda will increase of about one order of magnitude in a few years of operation.

  8. Flux modulations seen by the muon veto of the GERDA experiment

    Science.gov (United States)

    GERDA Collaboration; Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicsk'o Cs'athy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knapp, M.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Ritter, F.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Strecker, H.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2016-11-01

    The GERDA experiment at LNGS of INFN is equipped with an active muon veto. The main part of the system is a water Cherenkov veto with 66 PMTs in the water tank surrounding the GERDA cryostat. The muon flux recorded by this veto shows a seasonal modulation. Two causes have been identified: (i) secondary muons from the CNGS neutrino beam (2.2%) and (ii) a temperature modulation of the atmosphere (1.4%). A mean cosmic muon rate of Iμ0 =(3.477 ± 0 .002stat ± 0 .067sys) ×10-4 /(s · m2) was found in good agreement with other experiments at LNGS. Combining the present result with those from previous experiments at LNGS the effective temperature coefficient αT , Lngs is determined to 0.93 ± 0.03. A fit of the temperature coefficients measured at various underground sites yields a kaon to pion ratio rK/π of 0.10 ± 0.03.

  9. WATER TEMPERATURE and other data from GERDA and CALANUS from 1972-03-14 to 1972-03-24 (NCEI Accession 9500067)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The data in this accession were collected from ships CALANUS and GERDA between March 14, 1972 and March 24, 1972. The real time data of water temperature at varying...

  10. Kibe kolimine Mustamäel / Jüri Järs, Gerda Koidla, Hilja Rikmann, Siret Mikumets ; intervjueerinud Taimi Nurmiste

    Index Scriptorium Estoniae

    Järs, Jüri, 1951-

    2009-01-01

    Intervjuu Tallinna Tehnikaülikooli Raamatukogu direktori Jüri Järsi, asedirektori Gerda Koidla, hoidlakogude peaspetsialisti Hilja Rikmanni ja teenindusosakonna avakogude peaspetsialisti Siret Mikumetsaga raamatukogu uude hoonesse kolimise protsessist ja uutest võimalustest teeninduses

  11. Precision monitoring and calibration of the high-voltage for the KATRIN experiment; Praezisionsueberwachung und Kalibration der Hochspannung fuer das KATRIN-Experiment

    Energy Technology Data Exchange (ETDEWEB)

    Thuemmler, T.

    2007-11-12

    The goal of the KATRIN(KArlsruhe TRIritium Neutrino) Experiment is to directly determine the neutrino rest mass from the kinematics of the tritium-{beta}-decay. KATRIN uses the high resolution and luminosity of a spectrometer following the MAC-E filter principle. Based on the experience of the successful predecessor experiments in Mainz and Troisk and the improved experimental technology, KATRIN aims to reach a sensitivity on the neutrino mass of 0.2 eV/c{sup 2} (90% C.L.). One of the few systematic uncertainties that have to be reduced to meet this goal is the uncertainty of measuring and monitoring the potential of the electrostatic filter of the spectrometer. In tritium measurement mode voltages of about U{sub 0} =-18.6 kV have to be permanently monitored with a maximum uncertainty of 3.3 ppm ({approx} 61mV at U{sub 0}), in order not to add more than {delta}m{sup 2}{sub {nu}{sub ec}}{sup 4} {<=} 0.0075 eV{sup 2} to the total systematic uncertainty. The goal of this work is to build a new precision high voltage divider in cooperation with PTB Braunschweig that reaches an uncertainty of about 1 ppm at voltages up to 35 kV. The divider is based on a new type of precision resistors, which have been screened with respect to their warm up drift and their temperature coefficient at the ppm level. By combining 100 of the best matching samples, the mutual warm up effect could be reduced to a computed value of <0.02 ppm. The precision resistors are mounted in a shielded and temperature stabilized vessel under N{sub 2} gas. The properties of both installed low voltage outputs with the ratios 1972:1 and 3944:1 have been repeatedly calibrated with about one year time difference at the DC high voltage laboratory (division 2.31) of PTB. The performance of the new divider in real measurements has been tested with the prototype of the new condensed {sup 83m}Kr calibration source (CKrS) [Ost08] at the Mainz spectrometer. Detailed stability investigations of the energy of the {sup

  12. Jutuvõistluse "Musta mantliga mees" võitis Katrin Johanson

    Index Scriptorium Estoniae

    2007-01-01

    Eduard Vilde muuseumi poolt läbi viidud krimi- ja põnevusjuttude võistlusest "Musta mantliga mees". Žürii: Karl Martin Sinijärv, Juhan Habicht, Paul Pajos, Rebekka Lotman, Kristin Rammus, Piret Meos.Võitja: Katrin Johanson, teine koht: Taavet Kase, kolmas koht: Imre Kõuts. Ajalehe "Postimees" eriauhinnad said: Juhan Voolaid, Hella Riisalu, Stina Maria Vilt, Sirle Poikkanen, Märt Kivimäe. Tallinna noorte infokeskuse auhinnad: Juhan Voolaid, Sirle Poikkalainen, Lilli Anderson, Aino Rätsep. Eduard Vilde muuseumi eriauhinnad: Merilin Jürjo, Laura Pirso

  13. Muonic background in the GERDA 0νββ experiment

    Energy Technology Data Exchange (ETDEWEB)

    Freund, Kai Lorenz

    2014-07-18

    Muons can cause a non-negligible background in rare-event experiments like GERDA which searches for the neutrinoless double-beta decay (0νββ) in the isotope {sup 76}Ge. The kinetic energy of cosmogenic muons depends on the progenitor particle, hence they can have an energy which is high enough to penetrate even the deepest underground laboratory. For this reason GERDA is equipped with a powerful muon veto system which in most parts was developed in Tuebingen. In this work, a plastic scintillator veto was added to the existing water Cherenkov veto in order to protect a weak spot. Existing hardware was maintained, frequently calibrated and faulty modules exchanged when possible. The DAQ and analysis was upgraded in order to run both veto systems simultaneously. The system was simulated with a GEANT4-based Monte-Carlo simulation. Multiplicity and photon spectra of the simulations were found to be in good agreement with the experimental data and give an efficiency for the detection of energy-depositing muons of ε{sup sim}{sub μd}=(99.935±0.015)%. Two external effects were clearly identified in the muon veto data: additional muons originating from the CNGS-beam at CERN and an annual flux modulation due to seasonal atmospheric temperature changes. Both effects were measured with high precision and agree well with other experiments. Coincidences with the germanium detectors were studied and muon-germanium coincidences were clearly identified. By defining a muon cut, a muon rejection efficiency of the germanium detectors of ε{sup Ge}{sub μr}=(99.2{sup +0.3}{sub -0.4})% was found. Two methods were pursued to find radioactive isotopes produced by muons through spallation or neutron activation. The result of both methods is compatible with zero, i.e. no events could be clearly identified. The overall functionality of the muon veto for Phase I of GERDA was successfully maintained and verified.

  14. GERDA results and the future perspectives for the neutrinoless double beta decay search using 76Ge

    Science.gov (United States)

    Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Biernat, J.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Comellato, T.; D’Andrea, V.; Demidova, E. V.; di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Gangapshev, A.; Garfagnini, A.; Giordano, M.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaidic, Y.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pertoldi, L.; Pullia, A.; Ransom, C.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zschocke, A.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.

    2018-03-01

    The GERmanium Detector Array (GERDA) is a low background experiment at the Laboratori Nazionali del Gran Sasso (LNGS) of INFN designed to search for the rare neutrinoless double beta decay (0νββ) of 76Ge. In the first phase (Phase I) of the experiment, high purity germanium diodes were operated in a “bare” mode and immersed in liquid argon. The overall background level of 10‑2cts/(keV ṡkg ṡyr) was a factor of ten better than those of its predecessors. No signal was found and a lower limit was set on the half-life for the 0νββ decay of 76Ge T1/20ν > 2.1 × 1025 yr (90% CL), while the corresponding median sensitivity was 2.4 × 1025 yr (90% CL). A second phase (Phase II) started at the end of 2015 after a major upgrade. Thanks to the increased detector mass and performance of the enriched germanium diodes and due to the introduction of liquid argon instrumentation techniques, it was possible to reduce the background down to 10‑3cts/(keV ṡkg ṡyr). After analyzing 23.2 kgṡyr of these new data no signal was seen. Combining these with the data from Phase I a stronger half-life limit of the 76Ge 0νββ decay was obtained: T1/20ν > 8.0 × 1025 yr (90% CL), reaching a sensitivity of 5.8 × 1025 yr (90% CL). Phase II will continue for the collection of an exposure of 100 kg ṡyr. If no signal is found by then the GERDA sensitivity will have reached 1.4 × 1026 yr for setting a 90% CL. limit. After the end of GERDA Phase II, the flagship experiment for the search of 0νββ decay of 76Ge will be LEGEND. LEGEND experiment is foreseen to deploy up to 1-ton of 76Ge. After ten years of data taking, it will reach a sensitivity beyond 1028 yr, and hence fully cover the inverted hierarchy region.

  15. Miks meile vaja maastikuarhitektuuri? = Why do we need landscape architecture? / Reinhard Micheller, Günther Schalk, Katrin Koov

    Index Scriptorium Estoniae

    Micheller, Reinhard, 1977-

    2013-01-01

    EKA arhitektuuri ja linnaplaneerimise osakonna III kursuse 2009-2012 aastail erialase projekteerimise ülesande raames on vestlusringis maastikuarhitektuurse osa juhendajad Reinhard Micheller ja Günther Schalk (michellerundschalk, München) ning Katrin Koov (KAVAKAVA, EKA maastikuarhitektuuri õppekava juht)

  16. Ruumi kohta arvamuse avaldamiseks ei pea olema arhitekt / Katrin Koov, Ave Kongo ; intervjueerinud Merle Karro-Kalberg

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2016-01-01

    Erahuvikoolina tegutseva arhitektuurikooli eestvedamisel töötatakse välja ruumiõppe valikainemoodulit gümnaasiumile. Ruumiõppest räägivad arhitektide liidu president, arhitektuurikooli õpetaja Katrin Koov ja Saue gümnaasiumi kunstiõpetaja Ave Kongo

  17. Mida teie oma tervise heaks teete? / Ly Jagor, Ülle Mihhailova, Ene Pill, Katrin Käbin...[jt.

    Index Scriptorium Estoniae

    2008-01-01

    Küsimusele vastavad Pärnu Õppenõustamiskeskuse psühholoog Ly Jagor, Maasika lasteaia juhataja asetäitja Ülle Mihhailova, Tallinna Perekeskuse ja Tähetorni lastekeskuse psühholoog Ene Pill, Tallinna Nõmme Noortemaja väikelaste ringijuht Katrin Käbin, Tääksi Põhikooli õpetaja Silva Kolk

  18. Kuhu lähed, Kultuurikatel? / Thuur Caris, Renger Koning, Arne Lösekann ; interv. Katrin Koov, Regina Viljasaar

    Index Scriptorium Estoniae

    Caris, Thuur

    2008-01-01

    Endise Tallinna soojuselektrijaama kompleksis asuva Kultuurikatla ruumide võimalusi uuriv workshop, korraldajaks MTÜ Kultuurikatel koos Kavakava arhitektide Siiri Vallneri ja Katrin Kooviga. Hollandi meediakunstnik Thuur Caris ja helilooja ning helidisainer Renger Koning tutvustavad Groningeni Pudingivabrikut. Saksa arhitekt ja kunstnik Arne Lösekann tutvustab Kubasta kunstikeskust Hamburgis

  19. A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Behrens, J. [Institut fuer Kernphysik, WWU Muenster, Muenster (Germany); Karlsruhe Institute of Technology, IEKP, Eggenstein-Leopoldshafen (Germany); Ranitzsch, P.C.O.; Hannen, V.; Ortjohann, H.W.; Rest, O.; Winzen, D.; Zacher, M.; Weinheimer, C. [Institut fuer Kernphysik, WWU Muenster, Muenster (Germany); Beck, M. [Institut fuer Kernphysik, WWU Muenster, Muenster (Germany); Johannes-Gutenberg Universitaet, Institut fuer Physik, Mainz (Germany); Beglarian, A. [Karlsruhe Institute of Technology, IPE, Eggenstein-Leopoldshafen (Germany); Erhard, M.; Groh, S.; Kraus, M. [IEKP, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen (Germany); Schloesser, K.; Thuemmler, T. [Karlsruhe Institute of Technology, IKP, Karlsruhe (Germany); Valerius, K. [Institut fuer Kernphysik, WWU Muenster, Muenster (Germany); Karlsruhe Institute of Technology, IKP, Karlsruhe (Germany); Wierman, K.; Wilkerson, J.F. [University of North Carolina, Department of Physics and Astronomy, Chapel Hill, NC (United States)

    2017-06-15

    The KATRIN experiment aims to determine the neutrino mass scale with a sensitivity of 200 meV/c{sup 2} (90% C.L.) by a precision measurement of the shape of the tritium β-spectrum in the endpoint region. The energy analysis of the decay electrons is achieved by a MAC-E filter spectrometer. To determine the transmission properties of the KATRIN main spectrometer, a mono-energetic and angular-selective electron source has been developed. In preparation for the second commissioning phase of the main spectrometer, a measurement phase was carried out at the KATRIN monitor spectrometer where the device was operated in a MAC-E filter setup for testing. The results of these measurements are compared with simulations using the particle-tracking software ''Kassiopeia'', which was developed in the KATRIN collaboration over recent years. (orig.)

  20. Results on neutrinoless double beta decay search in GERDA. Background modeling and limit setting

    Energy Technology Data Exchange (ETDEWEB)

    Becerici Schmidt, Neslihan

    2014-07-22

    The search for the neutrinoless double beta decay (0νββ) process is primarily motivated by its potential of revealing the possible Majorana nature of the neutrino, in which the neutrino is identical to its antiparticle. It has also the potential to yield information on the intrinsic properties of neutrinos, if the underlying mechanism is the exchange of a light Majorana neutrino. The Gerda experiment is searching for 0νββ decay of {sup 76}Ge by operating high purity germanium (HPGe) detectors enriched in the isotope {sup 76}Ge (∝ 87%), directly in ultra-pure liquid argon (LAr). The first phase of physics data taking (Phase I) was completed in 2013 and has yielded 21.6 kg.yr of data. A background index of B∼10{sup -2} cts/(keV.kg.yr) at Q{sub ββ}=2039 keV has been achieved. A comprehensive background model of the Phase I energy spectrum is presented as the major topic of this dissertation. Decomposition of the background energy spectrum into the individual contributions from different processes provides many interesting physics results. The specific activity of {sup 39}Ar has been determined. The obtained result, A=(1.15±0.11) Bq/kg, is in good agreement with the values reported in literature. The contribution from {sup 42}K decays in LAr to the background spectrum has yielded a {sup 42}K({sup 42}Ar) specific activity of A=(106.2{sub -19.2}{sup +12.7}) μBq/kg, for which only upper limits exist in literature. The analysis of high energy events induced by α decays in the {sup 226}Ra chain indicated a total {sup 226}Ra activity of (3.0±0.9) μBq and a total initial {sup 210}Po activity of (0.18±0.01) mBq on the p{sup +} surfaces of the enriched semi-coaxial HPGe detectors. The half life of the two-neutrino double beta (2νββ) decay of {sup 76}Ge has been determined as T{sub 1/2}{sup 2ν}=(1.926±0.094).10{sup 21} yr, which is in good agreement with the result that was obtained with lower exposure and has been published by the Gerda collaboration

  1. Development and test results of a readout chip for the GERDA experiment

    CERN Document Server

    Smale, Nigel; Knöpfle, K T; Schwingenheuer, B; Trunk, U; Fallot-Burghardt, W

    2007-01-01

    This paper describes the F-CSA104 architecture and its measurement results. The F-CSA104 is for γ spectroscopy with Ge detectors. It is a low noise, fully integrated, four channel XFAB 0.6μm CMOS technology ASIC, that has been developed for the GERDA experiment. Each channel contains a charge sensitive preamplifier (CSA) followed by a 11.7MHz differential line driver. It has been particularly designed to operate in liquid argon (T = 87K/-186°C) and to have a measuring sensitivity of 660e- with an ENC of 110e-, after offline filtering with 10μs shaping, when connected to a 30pF load. Special techniques are used to improve the SNR such as a large input PMOS FET, an integrated 500MΩ CSA feedback resistor and a noise degeneration drain resistor.

  2. Keeping the Background Low: Production and Testing of the GERDA Phase II Detectors

    International Nuclear Information System (INIS)

    Hemmer, Sabine

    2013-06-01

    The Germanium Detector Array (GERDA) experiment at the INFN Laboratori Nazionali del Gran Sasso searches for neutrinoless double beta decay of 76 Ge. The first phase using ∼15 kg of coaxial germanium detectors is ongoing. In a second phase, additional ∼20 kg of newly produced Broad Energy Germanium (BEGe) detectors will be deployed. To limit the generation of cosmogenically induced radioisotopes, the exposure of the germanium to cosmic radiation during the detector production and testing was minimized. An acceptance and characterization campaign of the newly produced detectors was carried out at the HEROICA facility in the HADES underground laboratory in Mol, Belgium. An overview over the complete production process, from isotopic enrichment of the material to the detector testing protocol, is given. (authors)

  3. Limits on uranium and thorium bulk content in GERDA Phase I detectors

    Science.gov (United States)

    GERDA Collaboration; Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakemüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2017-05-01

    Internal contaminations of 238U, 235U and 232Th in the bulk of high purity germanium detectors are potential backgrounds for experiments searching for neutrinoless double beta decay of 76Ge. The data from GERDA Phase I have been analyzed for alpha events from the decay chain of these contaminations by looking for full decay chains and for time correlations between successive decays in the same detector. No candidate events for a full chain have been found. Upper limits on the activities in the range of a few nBq/kg for 226Ra, 227Ac and 228Th, the long-lived daughter nuclides of 238U, 235U and 232Th, respectively, have been derived. With these upper limits a background index in the energy region of interest from 226Ra and 228Th contamination is estimated which satisfies the prerequisites of a future ton scale germanium double beta decay experiment.

  4. Toxicity of phosphor esters: Willy Lange (1900-1976) and Gerda von Krueger (1907-after 1970).

    Science.gov (United States)

    Petroianu, G A

    2010-10-01

    In 1851 Williamson serendipitously discovered a new and efficient way to produce ethers using ethyl iodide and potassium salts. Based on this new synthetic approach, the Frenchman Philippe de Clermont and the Muscovite Wladimir Moschnin, both élèves of Adolphe Wurtz in his Paris School of Chemistry, achieved the synthesis of the first ester of pyrophosphoric acid (TEPP). de Clermont "tasted" the new compound and although TEPP is a potent cholinesterase inhibitor he failed to recognize its toxicity. Almost a century later, in 1932, Willy Lange (1900-1976) and his graduate student Gerda v. Krueger (1907-after 1970) described the toxicity of organophosphonates. While the classic paper of the two "Uber Ester der Monofluorphosphorsäure." is cited by almost everybody working in the field, little is known about Lange and almost nothing about v. Krueger. This brief communication attempts to shed some light on the life of both.

  5. Results on neutrinoless double beta decay search in GERDA. Background modeling and limit setting

    International Nuclear Information System (INIS)

    Becerici Schmidt, Neslihan

    2014-01-01

    The search for the neutrinoless double beta decay (0νββ) process is primarily motivated by its potential of revealing the possible Majorana nature of the neutrino, in which the neutrino is identical to its antiparticle. It has also the potential to yield information on the intrinsic properties of neutrinos, if the underlying mechanism is the exchange of a light Majorana neutrino. The Gerda experiment is searching for 0νββ decay of 76 Ge by operating high purity germanium (HPGe) detectors enriched in the isotope 76 Ge (∝ 87%), directly in ultra-pure liquid argon (LAr). The first phase of physics data taking (Phase I) was completed in 2013 and has yielded 21.6 kg.yr of data. A background index of B∼10 -2 cts/(keV.kg.yr) at Q ββ =2039 keV has been achieved. A comprehensive background model of the Phase I energy spectrum is presented as the major topic of this dissertation. Decomposition of the background energy spectrum into the individual contributions from different processes provides many interesting physics results. The specific activity of 39 Ar has been determined. The obtained result, A=(1.15±0.11) Bq/kg, is in good agreement with the values reported in literature. The contribution from 42 K decays in LAr to the background spectrum has yielded a 42 K( 42 Ar) specific activity of A=(106.2 -19.2 +12.7 ) μBq/kg, for which only upper limits exist in literature. The analysis of high energy events induced by α decays in the 226 Ra chain indicated a total 226 Ra activity of (3.0±0.9) μBq and a total initial 210 Po activity of (0.18±0.01) mBq on the p + surfaces of the enriched semi-coaxial HPGe detectors. The half life of the two-neutrino double beta (2νββ) decay of 76 Ge has been determined as T 1/2 2ν =(1.926±0.094).10 21 yr, which is in good agreement with the result that was obtained with lower exposure and has been published by the Gerda collaboration. According to the model, the background in Q ββ ±5 keV window is resulting from close

  6. GERDA test facility for pressurized water reactors with straight tube steam generators

    International Nuclear Information System (INIS)

    Ahrens, G.; Haury, G.; Lahner, K.; Schatz, A.

    1983-01-01

    A number of large-scale experimental facilities have been constructed and operate in order to experiment on the thermodynamic and thermohydraulic behaviour of nuclear facilities in case of LOCA. Most of them were designed for ''large leak'' accidents, but as ''small leak'' accidents became the focus of interest, such experiments were also carried out. Experiments carried out with this arrangement for PWR-type reactors with straight-tube steam generators are only partially evaluable. BBR and B and W therefore cooperated in the construction of the test facility GERDA, designed for testing reactors of BBR design. It supplied relevant experimental results for the nuclear power plant at Muelheim-Kaerlich. (orig.) [de

  7. Stability measurements of the electron gun for the KATRIN rear section

    Energy Technology Data Exchange (ETDEWEB)

    Ebenhoech, Sylvia [Karlsruhe Institute of Technology (KIT) (Germany). Institute for Technical Physics (ITEP), Tritium Laboratory Karlsruhe (TLK); Collaboration: KATRIN-Collaboration

    2016-07-01

    The aim of the KArlsruhe TRItium Neutrino (KATRIN) experiment is to determine the antineutrino mass with a sensitivity of 0.2 eV (90 % C.L.) by high-precision spectroscopy close to the tritium beta decay endpoint at 18.6 keV. To achieve the sensitivity aim both statistical and systematic uncertainties must be minimized. One contribution to the systematic error are uncertainties in the column density of the tritium source or in the source activity. In order to detect and monitor changes in the tritium source the Rear Section, which is integrated at the rear end of the KATRIN setup, is used. The Rear Section includes an angular selective electron gun (e-gun) based on the photoelectric effect. With the e-gun it will be possible e.g. to achieve a precise calibration of the column source density. To achieve the requirements on the e-gun a stable UV light source is essential to produce photoelectrons. The presentation focuses on the setup of the e-gun and intensity stability measurements of the UV light source setup.

  8. Design of a pulsed angular selective electron gun for the KATRIN main spectrometer

    Energy Technology Data Exchange (ETDEWEB)

    Winzen, Daniel; Hannen, Volker; Ortjohann, Hans-Werner; Zacher, Michael; Weinheimer, Christian [Institut fuer Kernphysik, Westfaelische Wilhelms-Universitaet, Muenster (Germany); Collaboration: KATRIN-Collaboration

    2012-07-01

    The KATRIN (KArlsruhe TRItium Neutrino mass) experiment will study the tritium {beta}-spectrum near the endpoint of 18.6 keV, aiming to measure the mass of the electron antineutrino. Using an electrostatic retarding spectrometer (MAC-E-Filter), the projected sensitivity for m{sub ve} is 200 meV/c{sup 2} at 90% C.L. In order to map out the electric and magnetic fields in the main spectrometer, an angular selective electron gun is currently being developed. The e-gun uses an UV-Laser to produce electrons via the photo-electric effect from a copper substrate which are then accelerated electrostatically. It features a small energy spread of approx. 0.1 eV, a sharp emission angle and will be able to cover the whole magnetic flux tube of KATRIN. Using a pulsed laser it is also possible to investigate the time of flight (TOF) of electrons through the spectrometer, offering enhanced sensitivity to spectrometer properties far away from the analysing plane. By comparing information from transmission function measurements and TOF data with Monte Carlo simulations of the setup, one will be able to achieve a detailed understanding of the spectrometer properties.

  9. Overview of recent and current spectroscopic investigations with hydrogen isotopologues for KATRIN

    Energy Technology Data Exchange (ETDEWEB)

    Brunst, Tim; Mirz, Sebastian; Groessle, Robin; Krasch, Bennet [Karlsruhe Institute of Technology KIT (Germany). Institute for Technical Physics (ITEP), Tritium Laboratory Karlsruhe (TLK); Collaboration: KATRIN-Collaboration

    2016-07-01

    The Karlsruhe Tritium Neutrino Experiment (KATRIN) investigates the energy spectrum of the tritium β decay near its energetic endpoint in order to determine the electron anti-neutrino mass with a sensitivity of 200 meV/c{sup 2} (90 % C.L.). Therefore, molecular tritium gas is decaying in a windowless gaseous tritium source (WGTS). The physical properties of the gas in the WGTS, like composition, ortho/para ratio or rotational population, need to be stabilised on a 10{sup -3} level due to their direct impact on the initial state distribution of the investigated β decay. In order to obtain a complete model of the molecular processes in the sample various spectroscopic measurements of mixtures with non-radioactive isotopologues (H{sub 2},HD,D{sub 2}) have been using IR spectroscopy in the liquid at temperatures <25 K and Raman spectroscopy in the gaseous phase at room temperature. This poster presents an overview of recent and current investigations with TApIR: The investigation of dimer and cluster formation under KATRIN conditions, as well as the ongoing task to investigate mixtures beyond the thermal equilibrium with highly concentrated HD and the design of a tritium compatible system for temperatures between (15-293) K.

  10. Novel laser ellipsometry method for the KATRIN condensed {sup 83m}Kr source

    Energy Technology Data Exchange (ETDEWEB)

    Zboril, Miroslav [Muenster Univ. (Germany). Inst. fuer Kernphysik; Collaboration: KATRIN-Collaboration

    2013-07-01

    One of the systematic effects in the neutrino mass experiment KATRIN are the fluctuations of the electric retarding potential which is experienced by the tritium β electrons on their path through the spectrometer. For the purpose of long-term monitoring of the energy scale stability several calibration electron sources will be utilised at KATRIN. One of them is the condensed {sup 83m}Kr source based on a frozen {sup 83m}Kr film on a HOPG backing at about 20 K. The isomeric state decays via a cascade of highly converted transitions, yielding conversion electron lines with energies ranging from 7.5 keV to 32.1 keV, useful for the energy calibration. The cleanliness of the HOPG backing is crucial as any adsorption of residual gas would shift the kinetic energy of the conversion electrons. The backing is cleaned via laser ablation and resistive heating. The cleanliness is checked via a novel method of laser ellipsometry where the polarisation analysis takes place directly in ultrahigh vacuum. The polarisation analysis is realised by an analyser and light detector at 90 K embedded in the cold baffle. This method allows to determine film thicknesses with a resolution of better than an atomic monolayer. As a byproduct it can be also used to determine the indices of refraction of condensed krypton and of the HOPG backing. The main features of the calibration source will be reviewed and the results of test measurements will be presented.

  11. Removal of stored particle background via the electric dipole method in the KATRIN main spectrometer

    Energy Technology Data Exchange (ETDEWEB)

    Hilk, Daniel [Institut fuer Experimentelle Kernphysik, KIT, Karlsruhe (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    The goal of the KArlsruhe TRItium Neutrino (KATRIN) experiment is to determine the effective mass of the electron anti neutrino by measuring the electron energy spectrum of tritium beta decay near the endpoint. The goal is to reach a sensitivity on the neutrino mass of 200 meV for which a low background level of 10{sup -2} counts per second is mandatory. Electrons from single radioactive decays of radon and tritium in the KATRIN main spectrometer with energies in the keV range can be magnetically stored for hours. While cooling down via ionization of residual gas molecules, they produce hundreds of secondary electrons, which can reach the detector and contribute to the background signals. In order to suppress this background component, several methods are investigated to remove stored electrons, such as the application of an electric dipole field and the application of magnetic pulses. This talk introduces the mechanism of background production due to stored electrons and their removal by the electric dipole method in the main spectrometer. In context of the spectrometer- and detector-commissioning phase in summer 2015, measurement results of the application of the electric dipole method are presented.

  12. The source of monoenergetic electrons for the monitoring of spectrometer in the KATRIN neutrino experiment

    CERN Document Server

    Slezák, Martin

    The international project KATRIN (KArlsruhe TRItium Neutrino experiment) is a next-generation tritium $\\beta$-decay experiment. It is designed to measure the electron anti-neutrino mass by means of a unique electron spectrometer with sensitivity of 0.2 eV/c$^2$. This is an improvement of one order of magnitude over the last results. Important part of the measurement will rest in continuous precise monitoring of high voltage of the KATRIN main spectrometer. The monitoring will be done by means of conversion electrons emitted from a solid source based on $^{83}$Rb decay. Properties of several of these sources are studied in this thesis by means of the semiconductor $\\gamma$-ray spectroscopy. Firstly, measurement of precise energy of the 9.4 keV nuclear transition observed in $^{83}$Rb decay, from which the energy of conversion electrons is derived, is reported. Secondly, measurement of activity distribution of the solid sources by means of the Timepix detector is described. Finally, a report on measurement of r...

  13. Background-free search for neutrinoless double-β decay of 76Ge with GERDA

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Marco, N.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Salathe, M.; Schmitt, C.; Schneider, B.; Schönert, S.; Schreiner, J.; Schulz, O.; Schütz, A.-K.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.; GERDA Collaboration

    2017-04-01

    Many extensions of the Standard Model of particle physics explain the dominance of matter over antimatter in our Universe by neutrinos being their own antiparticles. This would imply the existence of neutrinoless double-β decay, which is an extremely rare lepton-number-violating radioactive decay process whose detection requires the utmost background suppression. Among the programmes that aim to detect this decay, the GERDA Collaboration is searching for neutrinoless double-β decay of 76Ge by operating bare detectors, made of germanium with an enriched 76Ge fraction, in liquid argon. After having completed Phase I of data taking, we have recently launched Phase II. Here we report that in GERDA Phase II we have achieved a background level of approximately 10-3 counts keV-1 kg-1 yr-1. This implies that the experiment is background-free, even when increasing the exposure up to design level. This is achieved by use of an active veto system, superior germanium detector energy resolution and improved background recognition of our new detectors. No signal of neutrinoless double-β decay was found when Phase I and Phase II data were combined, and we deduce a lower-limit half-life of 5.3 × 1025 years at the 90 per cent confidence level. Our half-life sensitivity of 4.0 × 1025 years is competitive with the best experiments that use a substantially larger isotope mass. The potential of an essentially background-free search for neutrinoless double-β decay will facilitate a larger germanium experiment with sensitivity levels that will bring us closer to clarifying whether neutrinos are their own antiparticles.

  14. Gamma-ray spectrometry of ultra low levels of radioactivity within the material screening program for the GERDA experiment.

    Science.gov (United States)

    Budjás, D; Gangapshev, A M; Gasparro, J; Hampel, W; Heisel, M; Heusser, G; Hult, M; Klimenko, A A; Kuzminov, V V; Laubenstein, M; Maneschg, W; Simgen, H; Smolnikov, A A; Tomei, C; Vasiliev, S I

    2009-05-01

    In present and future experiments in the field of rare events physics a background index of 10(-3) counts/(keV kg a) or better in the region of interest is envisaged. A thorough material screening is mandatory in order to achieve this goal. The results of a systematic study of radioactive trace impurities in selected materials using ultra low-level gamma-ray spectrometry in the framework of the GERDA experiment are reported.

  15. Characterization of the first true coaxial 18-fold segmented n-type prototype HPGe detector for the gerda project

    International Nuclear Information System (INIS)

    Abt, I.; Caldwell, A.; Gutknecht, D.; Kroeninger, K.; Lampert, M.; Liu, X.; Majorovits, B.; Quirion, D.; Stelzer, F.; Wendling, P.

    2007-01-01

    The first true coaxial 18-fold segmented n-type HPGe prototype detector produced by Canberra-France for the GERDA neutrinoless double beta-decay project was tested both at Canberra-France and at the Max-Planck-Institut fur Physik in Munich. The main characteristics of the detector are given and measurements concerning detector properties are described. A novel method to establish contacts between the crystal and a Kapton cable is presented

  16. Operation of bare HPGe detectors in LAr/LN{sub 2} for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Heider, M Barnabe; Chkvorets, O; Schoenert, S [MPI fuer Kernphysik, Heidelberg (Germany); Cattadori, C [INFN-Milano Bicocca, Milano (Italy); Vacri, A di [INFN-LNGS, L' Aquila (Italy); Gusev, K; Shirchenko, M [Russian Research Center Kurchatov Institute, Moscow, Russia and JINR, Dubna (Russian Federation)], E-mail: assunta.divacri@lngs.infn.it

    2008-11-01

    GERDA is designed to search for 0{nu}{beta}{beta}-decay of {sup 76}Ge using high purity germanium detectors (HPGe), enriched ({approx} 85%) in {sup 76}Ge, directly immersed in LAr which acts both as shield against {gamma} radiation and as cooling medium. The cryostat is located in a stainless steel water tank providing an additional shield against external background. The GERDA experiment aims at a background (b) {approx}<10{sup -3} cts/(kg-y-keV) and energy resolution (FWHM) {<=} 4 keV at Q{sub {beta}}{sub {beta}} = 2039 keV. GERDA experiment is foreseen to proceed in two phases. For Phase I, eight reprocessed enriched HPGe detectors from the past HdM [C Balysh et al., Phys. Rev. D 66 (1997) 54] and IGEX [C E Aalseth et al., Phys. of Atomic Nuclei 63 (2000) 1225] experiments ({approx} 18 kg) and six reprocessed natural HPGe detectors ({approx} 15 kg) from the Genius Test-Facility [H V Klapdor et al., HIM A 481 (2002) 149] will be deployed in strings. GERDA aims at b {approx}< 10{sup -2} cts/(kg{center_dot}keV{center_dot}y). With an exposure of {approx} 15 kg{center_dot}y of {sup 76}Ge and resolution {approx} 3.6 keV, the sensitivity on the half-life will be T{sup 0{nu}}{sub 1/2} 3 {center_dot} 10{sup 25} y (90 % C.L.) corresponding to m{sub ee} < 270 meV [V A Rodin et al., Nucl. Phys. A 766 (2006) 107]. In Phase II, new diodes, able to discriminate between single- and multi-site events, will be added ({approx} 20 kg of {sup 76}Ge with intrinsic b {approx} 10{sup -2} cts/(kg{center_dot}keV{center_dot}y). With an exposure of {approx} 120 kg{center_dot}y, it is expected T{sup 0{nu}}{sub 1/2} > 1.5 {center_dot} 10{sup 26} y (90% C.L.) corresponding to m{sub ee} < 110 meV [V A Rodin et al., Nucl. Phys. A 766 (2006) 107]. Three natural p-type HPGe prototypes (different passivation layer designs) are available in the GERDA underground facility at LNGS to investigate the effect of the detector assembly (low-mass low-activity holder), of the handling procedure and of the

  17. Electron spectroscopy measurements with a shifted analyzing plane setting in the KATRIN main spectrometer

    Energy Technology Data Exchange (ETDEWEB)

    Dyba, Stephan [Institut fuer Kernphysik, Uni Muenster (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    With the KATRIN (KArlsruhe TRItium Neutrino) experiment the endpoint region of the tritium beta decay will be measured to determine the electron-neutrino mass with a sensitivity of 200 meV/c{sup 2} (90% C.L.). For the high precision which is needed to achieve the sub-eV range a MAC-E filter type spectrometer is used to analyze the electron energy. To understand the various background contributions inside the spectrometer vessel different electric and magnetic field settings were investigated during the last commissioning phase. This talk will focus on the so called shifted analyzing plane measurement in which the field settings were tuned in a way to provide non standard potential barriers within the spectrometer. The different settings allowed to perform a spectroscopic measurement, determining the energy spectrum of background electrons born within the spectrometer.

  18. Uhked naised / Kozik, Eerika; Tomingas, Triin; Sepp, Karin; Liik, Kadi; Kliimask, Katrin; Saunpere, Anne ; tekst Kärt Kross

    Index Scriptorium Estoniae

    2007-01-01

    Mille üle oled enda juures tõeliselt uhke, mida võid enda kiituseks öelda? Küsimusele vastavad Starland Salongi omanik ja Loyd Tootmine OÜ osanik Eerika Kozik, psühholoog Triin Tomingas, Kontuur Leo Burnett projektidirektor Karin Sepp, Tallinna Ülikooli õppejõud Kadi Liik, AS Koolibri turundusjuht Katrin Kliimask ja eraettevõtja Anne Saunpere

  19. Statistical sensitivity on right-handed currents in presence of eV scale sterile neutrinos with KATRIN

    Science.gov (United States)

    Steinbrink, Nicholas M. N.; Glück, Ferenc; Heizmann, Florian; Kleesiek, Marco; Valerius, Kathrin; Weinheimer, Christian; Hannestad, Steen

    2017-06-01

    The KATRIN experiment aims to determine the absolute neutrino mass by measuring the endpoint region of the tritium β-spectrum. As a large-scale experiment with a sharp energy resolution, high source luminosity and low background it may also be capable of testing certain theories of neutrino interactions beyond the standard model (SM). An example of a non-SM interaction are right-handed currents mediated by right-handed W bosons in the left-right symmetric model (LRSM). In this extension of the SM, an additional SU(2)R symmetry in the high-energy limit is introduced, which naturally includes sterile neutrinos and predicts the seesaw mechanism. In tritium β decay, this leads to an additional term from interference between left- and right-handed interactions, which enhances or suppresses certain regions near the endpoint of the beta spectrum. In this work, the sensitivity of KATRIN to right-handed currents is estimated for the scenario of a light sterile neutrino with a mass of some eV. This analysis has been performed with a Bayesian analysis using Markov Chain Monte Carlo (MCMC). The simulations show that, in principle, KATRIN will be able to set sterile neutrino mass-dependent limits on the interference strength. The sensitivity is significantly increased if the Q value of the β decay can be sufficiently constrained. However, the sensitivity is not high enough to improve current upper limits from right-handed W boson searches at the LHC.

  20. Statistical sensitivity on right-handed currents in presence of eV scale sterile neutrinos with KATRIN

    International Nuclear Information System (INIS)

    Steinbrink, Nicholas M.N.; Weinheimer, Christian; Glück, Ferenc; Valerius, Kathrin; Heizmann, Florian; Kleesiek, Marco; Hannestad, Steen

    2017-01-01

    The KATRIN experiment aims to determine the absolute neutrino mass by measuring the endpoint region of the tritium β-spectrum. As a large-scale experiment with a sharp energy resolution, high source luminosity and low background it may also be capable of testing certain theories of neutrino interactions beyond the standard model (SM). An example of a non-SM interaction are right-handed currents mediated by right-handed W bosons in the left-right symmetric model (LRSM). In this extension of the SM, an additional SU(2) R symmetry in the high-energy limit is introduced, which naturally includes sterile neutrinos and predicts the seesaw mechanism. In tritium β decay, this leads to an additional term from interference between left- and right-handed interactions, which enhances or suppresses certain regions near the endpoint of the beta spectrum. In this work, the sensitivity of KATRIN to right-handed currents is estimated for the scenario of a light sterile neutrino with a mass of some eV. This analysis has been performed with a Bayesian analysis using Markov Chain Monte Carlo (MCMC). The simulations show that, in principle, KATRIN will be able to set sterile neutrino mass-dependent limits on the interference strength. The sensitivity is significantly increased if the Q value of the β decay can be sufficiently constrained. However, the sensitivity is not high enough to improve current upper limits from right-handed W boson searches at the LHC.

  1. Statistical sensitivity on right-handed currents in presence of eV scale sterile neutrinos with KATRIN

    Energy Technology Data Exchange (ETDEWEB)

    Steinbrink, Nicholas M.N.; Weinheimer, Christian [Institute for Nuclear Physics, University of Münster, Wilhelm Klemm-Str. 9, 41849 Münster (Germany); Glück, Ferenc; Valerius, Kathrin [Institute for Nuclear Physics, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe (Germany); Heizmann, Florian; Kleesiek, Marco [Institute of Experimental Nuclear Physics, Karlsruhe Institute of Technology, P.O. Box 3640, 76021 Karlsruhe (Germany); Hannestad, Steen, E-mail: n.steinbrink@uni-muenster.de, E-mail: ferenc.glueck@kit.edu, E-mail: florian.heizmann@kit.edu, E-mail: marco.kleesiek@kit.edu, E-mail: kathrin.valerius@kit.edu, E-mail: weinheimer@uni-muenster.de, E-mail: steen@phys.au.dk [Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C (Denmark)

    2017-06-01

    The KATRIN experiment aims to determine the absolute neutrino mass by measuring the endpoint region of the tritium β-spectrum. As a large-scale experiment with a sharp energy resolution, high source luminosity and low background it may also be capable of testing certain theories of neutrino interactions beyond the standard model (SM). An example of a non-SM interaction are right-handed currents mediated by right-handed W bosons in the left-right symmetric model (LRSM). In this extension of the SM, an additional SU(2){sub R} symmetry in the high-energy limit is introduced, which naturally includes sterile neutrinos and predicts the seesaw mechanism. In tritium β decay, this leads to an additional term from interference between left- and right-handed interactions, which enhances or suppresses certain regions near the endpoint of the beta spectrum. In this work, the sensitivity of KATRIN to right-handed currents is estimated for the scenario of a light sterile neutrino with a mass of some eV. This analysis has been performed with a Bayesian analysis using Markov Chain Monte Carlo (MCMC). The simulations show that, in principle, KATRIN will be able to set sterile neutrino mass-dependent limits on the interference strength. The sensitivity is significantly increased if the Q value of the β decay can be sufficiently constrained. However, the sensitivity is not high enough to improve current upper limits from right-handed W boson searches at the LHC.

  2. The slow control system of the GERDA double beta decay experiment at Gran Sasso

    International Nuclear Information System (INIS)

    Brugnera, R; Garfagnini, A; Gigante, G; Hemmer, S; Zinato, D; Costa, F; Lippi, I; Michelotto, M; Ur, C

    2012-01-01

    GERDA is an experiment designed and built to study double beta decays of 76 Ge. It is currently in operation at the Gran Sasso underground laboratories (LNGS). A custom slow control system has been designed to monitor and control all the critical parameters for the proper functioning of the experiment. The main sub-components of the experiment (Cryostat, Clean Room, Water Tank, electronic crates and temperatures, High Voltage Systems, Radon Monitor and Source Insertion System) are constantly monitored by several distributed clients which write acquired data to a relational database (PostgreSQL). The latter allows to maintain a history of the whole experiment and, performing correlation between different and independent components, is useful to debug possible system malfunctions. The system is complemented by a Web server, a lightweight and efficient interface to the user on shifts and to the on-call experts, and by a dedicated Alarm dispatcher which distributes the errors generated by the components to the users allowing to react in short time. The whole project has been built around open source and custom software.

  3. 2νββ decay of 76Ge into excited states with GERDA phase I

    Science.gov (United States)

    GERDA Collaboration; Agostini, M.; Allardt, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; D'Andrea, V.; Demidova, E. V.; di Vacri, A.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Fedorova, O.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gooch, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Medinaceli, E.; Mi, Y.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Palioselitis, D.; Panas, K.; Pandola, L.; Pelczar, K.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schneider, B.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Schütz, A.-K.; Selivanenko, O.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Stepaniuk, M.; Ur, C. A.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wilsenach, H.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2015-11-01

    Two neutrino double beta decay of {}76{Ge} to excited states of {}76{Se} has been studied using data from Phase I of the GERDA experiment. An array composed of up to 14 germanium detectors including detectors that have been isotopically enriched in {}76{Ge} was deployed in liquid argon. The analysis of various possible transitions to excited final states is based on coincidence events between pairs of detectors where a de-excitation γ ray is detected in one detector and the two electrons in the other. No signal has been observed and an event counting profile likelihood analysis has been used to determine Frequentist 90% C.L. bounds for three transitions: {0}{{g}.{{s}}.}+-{2}1+: {T}1/22ν \\gt 1.6× {10}23 yr, {0}{{g}.{{s}}.}+-{0}1+: {T}1/22ν \\gt 3.7× {10}23 yr and {0}{{g}.{{s}}.}+-{2}2+: {T}1/22ν \\gt 2.3× {10}23 yr. These bounds are more than two orders of magnitude larger than those reported previously. Bayesian 90% credibility bounds were extracted and used to exclude several models for the {0}{{g}.{{s}}.}+-{0}1+ transition.

  4. Double-beta decay with majoron emission in GERDA Phase I

    Science.gov (United States)

    Hemmer, Sabine

    2015-07-01

    Neutrinoless double-beta decay with emission of one or two majorons (0 νββχ( χ)) is predicted by several beyond-Standard-Model theories. This article reviews the results of a search for 0 νββχ( χ) of 76Ge using data from the Germanium Detector Array (GERDA) experiment, located underground at the INFN Laboratori Nazionali del Gran Sasso (LNGS) in Italy. The analysis comprised data with an exposure of 20.3 kg·yr from the first phase of the experiment. No indication of contributions to the observed energy spectra was detected for any of the majoron models. The lower limit on the half-life for the ordinary majoron model (spectral index n = 1 was determined to be T {1/2/0 νβ } > 4.2 · 1023 yr (90% quantile). This limit and the limits derived for the other majoron modes constitute the most stringent limits on 0 νββχ( χ) decay of 76Ge measured to date.

  5. Monte Carlo studies and optimization for the calibration system of the GERDA experiment

    Science.gov (United States)

    Baudis, L.; Ferella, A. D.; Froborg, F.; Tarka, M.

    2013-11-01

    The GERmanium Detector Array, GERDA, searches for neutrinoless double β decay in 76Ge using bare high-purity germanium detectors submerged in liquid argon. For the calibration of these detectors γ emitting sources have to be lowered from their parking position on the top of the cryostat over more than 5 m down to the germanium crystals. With the help of Monte Carlo simulations, the relevant parameters of the calibration system were determined. It was found that three 228Th sources with an activity of 20 kBq each at two different vertical positions will be necessary to reach sufficient statistics in all detectors in less than 4 h of calibration time. These sources will contribute to the background of the experiment with a total of (1.07±0.04(stat)-0.19+0.13(sys))×10-4 cts/(keV kg yr)) when shielded from below with 6 cm of tantalum in the parking position.

  6. Monte Carlo studies and optimization for the calibration system of the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Baudis, L. [Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zürich (Switzerland); Ferella, A.D. [Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zürich (Switzerland); INFN Laboratori Nazionali del Gran Sasso, 67010 Assergi (Italy); Froborg, F., E-mail: francis@froborg.de [Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zürich (Switzerland); Tarka, M. [Physics Institute, University of Zurich, Winterthurerstrasse 190, 8057 Zürich (Switzerland); Physics Department, University of Illinois, 1110 West Green Street, Urbana, IL 61801 (United States)

    2013-11-21

    The GERmanium Detector Array, GERDA, searches for neutrinoless double β decay in {sup 76}Ge using bare high-purity germanium detectors submerged in liquid argon. For the calibration of these detectors γ emitting sources have to be lowered from their parking position on the top of the cryostat over more than 5 m down to the germanium crystals. With the help of Monte Carlo simulations, the relevant parameters of the calibration system were determined. It was found that three {sup 228}Th sources with an activity of 20 kBq each at two different vertical positions will be necessary to reach sufficient statistics in all detectors in less than 4 h of calibration time. These sources will contribute to the background of the experiment with a total of (1.07±0.04(stat){sub −0.19}{sup +0.13}(sys))×10{sup −4}cts/(keVkgyr)) when shielded from below with 6 cm of tantalum in the parking position.

  7. Improved Limit on Neutrinoless Double-β Decay of ^{76}Ge from GERDA Phase II.

    Science.gov (United States)

    Agostini, M; Bakalyarov, A M; Balata, M; Barabanov, I; Baudis, L; Bauer, C; Bellotti, E; Belogurov, S; Bettini, A; Bezrukov, L; Biernat, J; Bode, T; Borowicz, D; Brudanin, V; Brugnera, R; Caldwell, A; Cattadori, C; Chernogorov, A; Comellato, T; D'Andrea, V; Demidova, E V; Di Marco, N; Domula, A; Doroshkevich, E; Egorov, V; Falkenstein, R; Gangapshev, A; Garfagnini, A; Grabmayr, P; Gurentsov, V; Gusev, K; Hakenmüller, J; Hegai, A; Heisel, M; Hemmer, S; Hiller, R; Hofmann, W; Hult, M; Inzhechik, L V; Janicskó Csáthy, J; Jochum, J; Junker, M; Kazalov, V; Kermaidic, Y; Kihm, T; Kirpichnikov, I V; Kirsch, A; Kish, A; Klimenko, A; Kneißl, R; Knöpfle, K T; Kochetov, O; Kornoukhov, V N; Kuzminov, V V; Laubenstein, M; Lazzaro, A; Lindner, M; Lippi, I; Lubashevskiy, A; Lubsandorzhiev, B; Lutter, G; Macolino, C; Majorovits, B; Maneschg, W; Miloradovic, M; Mingazheva, R; Misiaszek, M; Moseev, P; Nemchenok, I; Panas, K; Pandola, L; Pelczar, K; Pertoldi, L; Pullia, A; Ransom, C; Riboldi, S; Rumyantseva, N; Sada, C; Salamida, F; Schmitt, C; Schneider, B; Schönert, S; Schütz, A-K; Schulz, O; Schwingenheuer, B; Selivanenko, O; Shevchik, E; Shirchenko, M; Simgen, H; Smolnikov, A; Stanco, L; Vanhoefer, L; Vasenko, A A; Veresnikova, A; von Sturm, K; Wagner, V; Wegmann, A; Wester, T; Wiesinger, C; Wojcik, M; Yanovich, E; Zhitnikov, I; Zhukov, S V; Zinatulina, D; Zschocke, A; Zsigmond, A J; Zuber, K; Zuzel, G

    2018-03-30

    The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of ^{76}Ge (^{76}Ge→^{76}Se+2e^{-}) operating bare Ge diodes with an enriched ^{76}Ge fraction in liquid argon. The exposure for broad-energy germanium type (BEGe) detectors is increased threefold with respect to our previous data release. The BEGe detectors feature an excellent background suppression from the analysis of the time profile of the detector signals. In the analysis window a background level of 1.0_{-0.4}^{+0.6}×10^{-3}  counts/(keV kg yr) has been achieved; if normalized to the energy resolution this is the lowest ever achieved in any 0νββ experiment. No signal is observed and a new 90% C.L. lower limit for the half-life of 8.0×10^{25}  yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×10^{25}  yr.

  8. HEROICA: a test facility for the characterization of BEGe detectors for the Gerda experiment

    Energy Technology Data Exchange (ETDEWEB)

    Falkenstein, Raphael [Eberhard Karls Universitaet Tuebingen (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    The Gerda experiment is designed to search for neutrinoless double beta (0νββ) decay of {sup 76}Ge. It uses bare, enriched Germanium diodes that are operated in liquid argon. Currently, Phase I is running at Laboratori Nazionali del Gran Sasso in Italy. For Phase II, ∝20 kg of Broad Energy Germanium (BEGe) detectors enriched in {sup 76}Ge at 86% level will be additionally deployed. These detectors allow for advanced pulse shape discrimination techniques, to suppress the background, which will be necessary to reach the goal of Phase II with a background index of 10{sup -3} cts/(keV.kg.yr) in the Region of Interest. The HEROICA project aims for acceptance tests and the characterization of the BEGe detectors. In this talk, the infrastructure of the Belgian HADES underground test facility, as well as the full test protocol for the characterization campaign of the enrBEGe detectors, is described. This test protocol includes the determination of important detector parameters, such as energy resolution, depletion voltage, dead-layer thickness and uniformity, active volume, as well as pulse shape discrimination parameters.

  9. Improved Limit on Neutrinoless Double-β Decay of Ge 76 from GERDA Phase II

    Science.gov (United States)

    Agostini, M.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Baudis, L.; Bauer, C.; Bellotti, E.; Belogurov, S.; Bettini, A.; Bezrukov, L.; Biernat, J.; Bode, T.; Borowicz, D.; Brudanin, V.; Brugnera, R.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Comellato, T.; D'Andrea, V.; Demidova, E. V.; di Marco, N.; Domula, A.; Doroshkevich, E.; Egorov, V.; Falkenstein, R.; Gangapshev, A.; Garfagnini, A.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Hakenmüller, J.; Hegai, A.; Heisel, M.; Hemmer, S.; Hiller, R.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kazalov, V.; Kermaidic, Y.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Kish, A.; Klimenko, A.; Kneißl, R.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lindner, M.; Lippi, I.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Majorovits, B.; Maneschg, W.; Miloradovic, M.; Mingazheva, R.; Misiaszek, M.; Moseev, P.; Nemchenok, I.; Panas, K.; Pandola, L.; Pelczar, K.; Pertoldi, L.; Pullia, A.; Ransom, C.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salamida, F.; Schmitt, C.; Schneider, B.; Schönert, S.; Schütz, A.-K.; Schulz, O.; Schwingenheuer, B.; Selivanenko, O.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Vanhoefer, L.; Vasenko, A. A.; Veresnikova, A.; von Sturm, K.; Wagner, V.; Wegmann, A.; Wester, T.; Wiesinger, C.; Wojcik, M.; Yanovich, E.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zschocke, A.; Zsigmond, A. J.; Zuber, K.; Zuzel, G.; Gerda Collaboration

    2018-03-01

    The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of Ge 76 (Ge 76 →Se 76 +2 e- ) operating bare Ge diodes with an enriched Ge 76 fraction in liquid argon. The exposure for broad-energy germanium type (BEGe) detectors is increased threefold with respect to our previous data release. The BEGe detectors feature an excellent background suppression from the analysis of the time profile of the detector signals. In the analysis window a background level of 1. 0-0.4+0.6×10-3 counts /(keV kg yr ) has been achieved; if normalized to the energy resolution this is the lowest ever achieved in any 0 νβ β experiment. No signal is observed and a new 90% C.L. lower limit for the half-life of 8.0 ×1025 yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8 ×1025 yr .

  10. Performance and stability tests of bare high purity germanium detectors in liquid argon for the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Barnabe Heider, Marik

    2009-05-27

    GERDA will search for neutrinoless double beta decay of {sup 76}Ge by using a novel approach of bare germanium detectors in liquid argon (LAr). Enriched germanium detectors from the previous Heidelberg-Moscow and IGEX experiments have been reprocessed and will be deployed in GERDA Phase-I. At the center of this thesis project is the study of the performance of bare germanium detectors in cryogenic liquids. Identical detector performance as in vacuum cryostats (2.2 keV FWHM at 1.3 MeV) was achieved in cryogenic liquids with a new low-mass detector assembly and contacts. One major result is the discovery of a radiation induced leakage current (LC) increase when operating bare detectors with standard passivation layers in LAr. Charge collection and build-up on the passivation layer were identified as the origin of the LC increase. It was found that diodes without passivation do not exhibit this feature. Three month-long stable operation in LAr at {proportional_to} 5 pA LC under periodic gamma irradiation demonstrated the suitability of the modi ed detector design. Based on these results, all Phase-I detectors were reprocessed without passivation layer and subsequently successfully characterized in LAr in the GERDA underground Detector Laboratory. The mass loss during the reprocessing was {proportional_to}300 g out of 17.9 kg and the exposure above ground {proportional_to} 5 days. This results in a negligible cosmogenic background increase of {proportional_to} 5.10{sup -4} cts/(keV.kg.y) at {sup 76}Ge Q{sub {beta}}{sub {beta}} for {sup 60}Co and {sup 68}Ge. (orig.)

  11. Search for the neutrinoless double beta decay (0νββ) of {sup 76}Ge: GERDA Phase II commissioning

    Energy Technology Data Exchange (ETDEWEB)

    Bode, Tobias [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    After successful completion of Phase I the Gerda (Germanium Detector Array) experiment underwent a major upgrade of the experimental apparatus. These upgrades include additional 20 kg of custom-made detectors with improved background rejection capabilities, accompanied by improved front-end electronics and an active liquid argon scintillation light veto. A sensitivity on the neutrinoless double beta decay half-life (T{sub 1/2}{sup 0ν}) of 10{sup 26} yr should be reached after a few years of data taking (Phase II). First results of Phase II commissioning and latest results from Phase I analyses are presented in this talk.

  12. Limit on the radiative neutrinoless double electron capture of "3"6Ar from GERDA Phase I

    International Nuclear Information System (INIS)

    Agostini, M.; Balata, M.; D'Andrea, V.; Di Vacri, A.; Junker, M.; Laubenstein, M.; Allardt, M.; Domula, A.; Lehnert, B.; Schneider, B.; Wester, T.; Wilsenach, H.; Zuber, K.; Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V.; Barabanov, I.; Bezrukov, L.; Doroshkevich, E.; Fedorova, O.; Gurentsov, V.; Kazalov, V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Moseev, P.; Selivanenko, O.; Veresnikova, A.; Yanovich, E.; Barros, N.; Baudis, L.; Benato, G.; Kish, A.; Miloradovic, M.; Mingazheva, R.; Walter, M.; Bauer, C.; Hakenmueller, J.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Stepaniuk, M.; Wagner, V.; Wegmann, A.; Bellotti, E.; Belogurov, S.; Kornoukhov, V.N.; Bettini, A.; Brugnera, R.; Garfagnini, A.; Medinaceli, E.; Sada, C.; Sturm, K. von; Bode, T.; Csathy, J.J.; Lazzaro, A.; Schoenert, S.; Wiesinger, C.; Borowicz, D.; Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Zhitnikov, I.; Zinatulina, D.; Caldwell, A.; Gooch, C.; Kneissl, R.; Liao, H.Y.; Majorovits, B.; Palioselitis, D.; Schulz, O.; Vanhoefer, L.; Cattadori, C.; Salamida, F.; Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A.; Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C.; Schuetz, A.K.; Frodyma, N.; Misiaszek, M.; Panas, K.; Pelczar, K.; Wojcik, M.; Zuzel, G.; Gangapshev, A.; Gusev, K.; Hemmer, S.; Lippi, I.; Stanco, L.; Hult, M.; Lutter, G.; Inzhechik, L.V.; Klimenko, A.; Lubashevskiy, A.; Macolino, C.; Pandola, L.; Pullia, A.; Riboldi, S.; Shirchenko, M.

    2016-01-01

    Neutrinoless double electron capture is a process that, if detected, would give evidence of lepton number violation and the Majorana nature of neutrinos. A search for neutrinoless double electron capture of "3"6Ar has been performed with germanium detectors installed in liquid argon using data from Phase I of the GERmanium Detector Array (Gerda) experiment at the Gran Sasso Laboratory of INFN, Italy. No signal was observed and an experimental lower limit on the half-life of the radiative neutrinoless double electron capture of "3"6Ar was established: T_1_/_2 > 3.6 x 10"2"1 years at 90% CI. (orig.)

  13. Status of the GERDA Experiment at the Laboratori Nazionali del Gran Sasso

    Directory of Open Access Journals (Sweden)

    R. Brugnera

    2013-01-01

    Full Text Available The Germanium Detector Array (Gerda is a low background experiment at the Laboratori Nazionali del Gran Sasso (LNGS of the INFN designed to search for the rare neutrinoless double beta decay (0νββ of 76Ge. In its first phase, high purity germanium diodes inherited from the former Heidelberg-Moscow and Igex experiments are operated “bare” and immersed in liquid argon, with an overall background environment of 10−2 cts/(keV·kg·yr, a factor of ten better than its predecessors. Measurements on two-neutrino double beta decay (2νββ giving T1/22ν=(1.88±0.10×1021 yr and recently published background model and pulse shape performances of the detectors are discussed in the paper. A new result on 0νββ has been recently published with a half-life limit on 0νββ decay T1/20ν>2.1×1025 yr (90% C.L.. A second phase of the experiment is scheduled to start during the year 2014, after a major upgrade shutdown. Thanks to the increased detector mass with new designed diodes and to the introduction of liquid argon instrumentation techniques, the experiment aims to reduce further the expected background to about 10−3 cts/(keV·kg·yr and to improve the 0νββ sensitivity to about T1/20ν>1.5×1026 yr (90% C.L..

  14. The background in the 0νββ experiment GERDA

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Bode, T.; Budjas, D.; Csathy, J.J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Allardt, M.; Barros, N.; Domula, A.; Lehnert, B.; Wester, T.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Andreotti, E. [Institute for Reference Materials and Measurements, Geel (Belgium); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; Ioannucci, L.; Junker, M.; Laubenstein, M.; Macolino, C.; Nisi, S.; Pandola, L.; Zavarise, P. [INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Gurentsov, V.; Inzhechik, L.V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barnabe Heider, M. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Baudis, L.; Benato, G.; Ferella, A.; Guthikonda, K.K.; Tarka, M.; Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Bauer, C.; Hampel, W.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Lubashevskiy, A.; Machado, A.A.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Strecker, H.; Wagner, V.; Wegmann, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Becerici-Schmidt, N.; Caldwell, A.; Cossavella, F.; Liao, H.Y.; Liu, X.; Majorovits, B.; O' Shaughnessy, C.; Palioselitis, D.; Schulz, O.; Volynets, O. [Max-Planck-Institut fuer Physik, Muenchen (Germany); Bellotti, E.; Pessina, G. [Universita Milano Bicocca, Dipartimento di Fisica, Milan (Italy); INFN Milano Bicocca, Milan (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Sada, C. [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padua (Italy); INFN Padova, Padua (Italy); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Shevchik, E.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C.; Gotti, C. [INFN Milano Bicocca, Milan (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Cracow (Poland); Gangapshev, A. [Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Muenchen (Germany); Hult, M.; Lutter, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max Planck Institut fuer Kernphysik, Heidelberg (Germany); Lippi, I.; Stanco, L.; Ur, C.A. [INFN Padova, Padua (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano (IT); INFN Milano, Dipartimento di Fisica, Milan (IT); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (RU); National Research Centre ' ' Kurchatov Institute' ' , Moscow (RU); Sturm, K. von [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padua (IT); INFN Padova, Padua (IT); Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (DE)

    2014-04-15

    The GERmanium Detector Array (GERDA) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double beta (0νββ) decay of {sup 76}Ge. The signature of the signal is a monoenergetic peak at 2039 keV, the Q{sub ββ} value of the decay. To avoid bias in the signal search, the present analysis does not consider all those events, that fall in a 40 keV wide region centered around Q{sub ββ}. The main parameters needed for the 0νββ analysis are described. A background model was developed to describe the observed energy spectrum. The model contains several contributions, that are expected on the basis of material screening or that are established by the observation of characteristic structures in the energy spectrum. The model predicts a flat energy spectrum for the blinding window around Q{sub ββ} with a background index ranging from 17.6 to 23.8 x 10{sup -3} cts/(keV kg yr). A part of the data not considered before has been used to test if the predictions of the background model are consistent. The observed number of events in this energy region is consistent with the background model. The background at Q{sub ββ} is dominated by close sources,mainly due to {sup 42}K, {sup 214}Bi, {sup 228}Th, {sup 60}Co and α emitting isotopes from the {sup 226}Ra decay chain. The individual fractions depend on the assumed locations of the contaminants. It is shown, that after removal of the known γ peaks, the energy spectrum can be fitted in an energy range of 200 keV around Q{sub ββ} with a constant background. This gives a background index consistent with the full model and uncertainties of the same size. (orig.)

  15. The effects of pre-harvest napthalene acetic acid and aminoethoxyvinylglycine treatments on storage performance of ‘ Ak Sakı’ apple cultivar grown in Erzincan conditions

    Directory of Open Access Journals (Sweden)

    Burhan OZTÜRK

    2013-06-01

    Full Text Available This study was carried out to determine the effects of pre-harvest aminoethoxyvinylglycine (AVG, 150, 225 ve 300 mg/L and naphthaleneacetic acid (NAA, 20 mg/L treatments in different doses on storage performance of ‘Ak Sakı’ apple cultivar (Malus domestica Borkh. in 2012. The changes on some fruit quality parameters were measured at 2±1 oC temperature and with 90±5 % relative humidity at 45 days interval during storage. The lowest weight loss was obtained from 300 mg/L AVG treated fruits during the storage. In the all analysis date, the highest L* value was obtained from 300 mg/L AVG treated fruits, and the lowest hue angle value was reported from the fruits of control treatment. The flesh firmness was determined that the best kept in the 225 and 300 mg/L AVG treated fruits during the storage. The flesh firmness significantly reduced with NAA treatment at the end of storage. The highest soluble solids concentration (SSC was obtain from control fruit during the storage, whereas the lowest SSC was observed in fruit treated with 300 mg/L AVG. In the all analysis date, the highest titratable acidity was obtained in fruits treated with 225 and 300 mg/L AVG. The starch degradation was delayed with AVG treatments.

  16. Background reduction at low energies with BEGe detector operated in liquid argon using the GERDA-LArGe facility

    Energy Technology Data Exchange (ETDEWEB)

    Budjas, Dusan [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2014-07-01

    LArGe is a low background test facility used for proving innovative approaches to background reduction in support of the neutrinoless double beta decay experiment Gerda. These approaches include an anti-Compton veto using scintillation light detection from liquid argon, as well as a novel pulse shape discrimination method exploiting the characteristic electrical field distribution inside BEGe detectors. The latter technique can identify single-site events (typical for double beta decays) and efficiently reject multi-site events (typical for backgrounds from gamma-ray interactions), as well as different types of background events from detector surfaces. While the main focus of the LArGe facility is to assist with reaching the goal of Gerda - improving the sensitivity for {sup 76}Ge neutrinoless double beta decay search, reducing the background at low energies and lowering the energy threshold is also of interest. In particular such efforts can be potentially relevant for search of dark matter or low energy neutrino interactions. In this talk I present the experimental measurement of the low energy region with a BEGe detector operated in LArGe with the application of powerful background suppression methods. The performance will be compared to that of some dedicated dark matter detection experiments.

  17. Water physics and chemistry data from bottle casts from the GERDA as part of the Rosenstiel School of Marine and Atmospheric Science (RSMAS) project from 20 July 1955 to 29 May 1957 (NODC Accession 7000057)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Water physics and chemistry data were collected from bottle casts from the GERDA from 20 July 1955 to 29 May 1957. Data were collected as part of the Rosenstiel...

  18. Calibration of the precision high voltage dividers of the KATRIN experiment

    Energy Technology Data Exchange (ETDEWEB)

    Rest, Oliver [Institut fuer Kernphysik, Westfaelische Wilhelms-Universitaet Muenster (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    The KATRIN (KArlsruhe TRItium Neutrino) experiment will measure the endpoint region of the tritium β decay spectrum to determine the neutrino mass with a sensitivity of 200 meV/c{sup 2}. To achieve this sub-eV sensitivity the energy of the decay electrons will be analyzed using a MAC-E type spectrometer. The retarding potential of the MAC-E-filter (up to -35 kV) has to be monitored with a relative precision of 3 . 10{sup -6}. For this purpose the potential will be measured directly via two custom made precision high voltage dividers, which were developed and constructed in cooperation with the Physikalisch-Technische Bundesanstalt Braunschweig. In order to determine the absolute values and the stability of the scale factors of the voltage dividers, regular calibration measurements are essential. Such measurements have been performed during the last years using several different methods. The poster gives an overview of the methods and results of the calibration of the precision high voltage dividers.

  19. International conference "Cultural Plurality in Estonia : Policies and Solutions"

    Index Scriptorium Estoniae

    2000-01-01

    Ettekandjad: Katrin Saks, Mall Hellam, Mati Luik, Kirsti Häkkinen, Vello Pettai, Ivi Proos, Katri Raik, NiinaOrhimenko, Ib Ostergaard Rasmussen, Urve Läänemets, Jüri Valge, Aleksander Dusman, Raivo Juurak, Rein Ruutsoo

  20. Eduard Odinets : "Olen eestlane, kelle emakeel on vene keel" / Eduard Odinets ; interv. Erik Kalda

    Index Scriptorium Estoniae

    Odinets, Eduard, 1976-

    2006-01-01

    Ilmunud ka: Severnoje Poberezhje Ilmunud ka: Severnoje Poberezhje : Subbota 3. juuni lk. 3. Riigikogu sotsiaaldemokraatide fraktsiooni nõunik oma poliitikukarjäärist. Arvamust avaldab Katrin Saks ja Meelis Goldberg (Severnoje Pob.)

  1. Ettevõtte edu sisse osta ei saa / Katrin Bats, Janne Laik, Silver Vohu, Evelin Ojamets ; intervjueerinud Küllike Heide

    Index Scriptorium Estoniae

    2012-01-01

    Kommunikatsiooni- ja turundustegevuse korraldusest ettevõtetes, mille suur osa antud projektidest hõlmab kõiki Balti riike. Mõtteid jagavad Katrin Bats Rimi Eesti Food AS-ist, Janne Laik NP Foods Eesti OÜ-st, Silver Vohu SEB Pangast ja Evelin Ojamets Coca-Cola-st

  2. Ultra-stable implanted 83Rb/83mKr electron sources for the energy scale monitoring in the KATRIN experiment

    CERN Document Server

    Zboril, M.; Beck, M.; Bonn, J.; Dragoun, O.; Jakubek, J.; Johnston, K.; Kovalik, A.; Otten, E.W.; Schlösser, K.; Slezak, M.; Spalek, A.; Thümmler, T.; Venos, D.; Zemlicka, J.; Weinheimer, C.

    2013-01-01

    The KATRIN experiment aims at the direct model-independent determination of the average electron neutrino mass via the measurement of the endpoint region of the tritium beta decay spectrum. The electron spectrometer of the MAC-E filter type is used, requiring very high stability of the electric filtering potential. This work proves the feasibility of implanted 83Rb/83mKr calibration electron sources which will be utilised in the additional monitor spectrometer sharing the high voltage with the main spectrometer of KATRIN. The source employs conversion electrons of 83mKr which is continuously generated by 83Rb. The K-32 conversion line (kinetic energy of 17.8 keV, natural line width of 2.7 eV) is shown to fulfill the KATRIN requirement of the relative energy stability of +/-1.6 ppm/month. The sources will serve as a standard tool for continuous monitoring of KATRIN's energy scale stability with sub-ppm precision. They may also be used in other applications where the precise conversion lines can be separated fr...

  3. Requirements on read-out electronics for future keV-scale sterile neutrino search with KATRIN

    Energy Technology Data Exchange (ETDEWEB)

    Dolde, Kai [Karlsruhe Institute of Technology (KIT), Karlsruhe (Germany)

    2016-07-01

    Recent publications show the great potential of the KATRIN (KArlsruhe TRItium Neutrino) experiment in the search for sterile neutrinos in the mass range of a few keV down to active-to-sterile mixing angles at least one order of magnitude smaller than current laboratory limits of sin{sup 2}θ < 10{sup -3}. In order to be sensitive to the tiny kink-like signature of sterile neutrinos in tritium beta decay, KATRIN requires a novel sophisticated detector and read-out system. Several silicon prototype detectors are under construction at the moment to explore the most suitable detector design for this purpose. The selection of appropriate read-out electronics is strongly triggered by the requirements of allowing only very small systematic uncertainties due to ADC Non-Linearities to reach the expected sensitivity. This talk investigates the impact of ADC Non-Linearities on the tritium beta decay spectrum, depending on the digitization method of analogue signals of a multi-pixel silicon detector, peak sensing or waveform digitization. The simulations show a higher achievable sensitivity using waveform digitizers and moreover strongly favor additional variable post-acceleration of the electrons to smear out the periodic structure of the ADC Non-Linearities.

  4. Background suppression in Gerda Phase II and its study in the LArGe low background set-up

    Energy Technology Data Exchange (ETDEWEB)

    Budjas, Dusan [Physik-Department E15, Technische Universitaet Muenchen (Germany); Collaboration: GERDA-Collaboration

    2013-07-01

    In Phase II of the Gerda experiment additional ∝20 kg of BEGe-type germanium detectors, enriched in {sup 76}Ge, will be deployed in liquid argon (LAr) to further increase the sensitivity for the half-life of neutrinoless double beta (0νββ) decay of {sup 76}Ge to > 2 . 10{sup 26} yr. To reduce background by a factor of 10 to the required level of < 10{sup -3} cts/(keV.kg.yr), it is necessary to employ active background-suppression techniques, including anti-Compton veto using scintillation light detection from LAr and pulse shape discrimination exploiting the characteristic electrical field distribution inside BEGe detectors. The latter technique can identify single-site events (typical for 0νββ) and efficiently reject multi-site events (mainly from γ-rays), as well as different types of background events from detector surfaces. The combined power of these techniques was studied for {sup 42}K and other background sources at the low background facility LArGe. Together with extensive simulations, the information from tracking of the Phase II detector material exposure to cosmic rays and based on the background contributions observed in Phase I, the expected background level in Phase II in the region of interest at 2039 keV, the Q{sub ββ} energy of {sup 76}Ge, is estimated. The preliminary analysis shows that contributions from all expected background components after all cuts are in line with the goal of Gerda Phase II.

  5. Excited state transitions in 2νββ decays of {sup 76}Ge from phase I of the GERDA experiment

    Energy Technology Data Exchange (ETDEWEB)

    Wester, Thomas [IKTP, TU Dresden (Germany); Collaboration: GERDA-Collaboration

    2015-07-01

    The Germanium Detector Array GERDA is an experiment searching for the neutrinoless double beta decay in {sup 76}Ge. The observation of such a decay would prove the Majorana character of the neutrino and could provide a hint about the neutrino mass and possibly identify the mass hierarchy scheme. The half life of the neutrino accompanied double beta decay (2νββ) of {sup 76}Ge has been measured by GERDA Phase I with unprecedented precision. The observed spectrum comes mostly from the transition from the 0{sup +} ground state of {sup 76}Ge to the 0{sup +} ground state of {sup 76}Se. However, phase space suppressed 2νββ transitions to excited states of {sup 76}Se exist as well. At current state, the predicted half lives for such decays vary by several orders of magnitude, due to the large uncertainties in the nuclear matrix elements and the available nuclear models. An observation would therefore help to constrain model parameters and decrease those uncertainties. This study investigates the 2νββ decay of {sup 76}Ge into various excited states of {sup 76}Se using the data from GERDA Phase I. An event counting method is performed based on coincident events between two germanium detectors. Several analysis parameters are optimized with the help of Monte Carlo simulations to maximize the sensitivity. The presentation discusses the procedure and results of this analysis.

  6. Populaarsemad raamatud : [Sõnum] / Ita Saks

    Index Scriptorium Estoniae

    Saks, Ita, 1921-2003

    1996-01-01

    Aasta populaarseimad raamatud läti kirjanduses: Vizma Belshevica 'Bille', Regina Ezera 'Lohe Muna' ja Karlis Levinshi 'Muinasjutujärve ääres'; populaarseimad publitsistikaraamatud on Guntis Ulmanise 'Sinult ju palju ei nõuta' ja Dainis Ivansi 'Juhuslik sõdalane'

  7. Outbreak of contact sensitization to methylisothiazolinone: an analysis of French data from the REVIDAL-GERDA network.

    Science.gov (United States)

    Hosteing, Stéphanie; Meyer, Nicolas; Waton, Julie; Barbaud, Annick; Bourrain, Jean-Luc; Raison-Peyron, Nadia; Felix, Brigitte; Milpied-Homsi, Brigitte; Ferrier Le Bouedec, Marie-Christine; Castelain, Michel; Vital-Durand, Dominique; Debons, Michèle; Collet, Evelyne; Avenel-Audran, Martine; Mathelier-Fusade, Pascale; Vermeulen, Christophe; Assier, Haudrey; Gener, Gwendoline; Lartigau-Sezary, Isabelle; Catelain-Lamy, Amandine; Giordano-Labadie, Françoise

    2014-05-01

    The preservative methylisothiazolinone (MI) is used in combination with methylchloroisothiazolinone (MCI), but the MCI/MI mixture has been identified as highly allergenic. MI is considered to be less allergenic, and since the mid-2000s has been widely used alone, but is now clearly identified as a contact allergen. The French Vigilance Network for Dermatology and Allergy of the Study and Research Group on Contact Dermatitis (REVIDAL-GERDA) added MI to its baseline patch testing series in 2010. To evaluate the change in the proportion of MI-positive tests in France between 2010 and 2012. We conducted a nationwide, multicentre, retrospective study of all MI-tested patients between 2010 and 2012. Sixteen centres participated in the study (7874 patients were tested). Patch tests were performed mainly at a concentration of MI 200 ppm aq. We observed a significant increase in the proportion of MI-positive tests in 2012 and 2011 as compared with 2010 (5.6%, 3.3%, and 1.5%, respectively; p < 0.001). We report a significant increase in the number of MI-positive tests. MI is confirmed to be a rapidly emerging allergen, as also observed in other European countries. © 2014 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

  8. Results on neutrinoless double-β decay of 76Ge from phase I of the GERDA experiment.

    Science.gov (United States)

    Agostini, M; Allardt, M; Andreotti, E; Bakalyarov, A M; Balata, M; Barabanov, I; Barnabé Heider, M; Barros, N; Baudis, L; Bauer, C; Becerici-Schmidt, N; Bellotti, E; Belogurov, S; Belyaev, S T; Benato, G; Bettini, A; Bezrukov, L; Bode, T; Brudanin, V; Brugnera, R; Budjáš, D; Caldwell, A; Cattadori, C; Chernogorov, A; Cossavella, F; Demidova, E V; Domula, A; Egorov, V; Falkenstein, R; Ferella, A; Freund, K; Frodyma, N; Gangapshev, A; Garfagnini, A; Gotti, C; Grabmayr, P; Gurentsov, V; Gusev, K; Guthikonda, K K; Hampel, W; Hegai, A; Heisel, M; Hemmer, S; Heusser, G; Hofmann, W; Hult, M; Inzhechik, L V; Ioannucci, L; Janicskó Csáthy, J; Jochum, J; Junker, M; Kihm, T; Kirpichnikov, I V; Kirsch, A; Klimenko, A; Knöpfle, K T; Kochetov, O; Kornoukhov, V N; Kuzminov, V V; Laubenstein, M; Lazzaro, A; Lebedev, V I; Lehnert, B; Liao, H Y; Lindner, M; Lippi, I; Liu, X; Lubashevskiy, A; Lubsandorzhiev, B; Lutter, G; Macolino, C; Machado, A A; Majorovits, B; Maneschg, W; Misiaszek, M; Nemchenok, I; Nisi, S; O'Shaughnessy, C; Pandola, L; Pelczar, K; Pessina, G; Pullia, A; Riboldi, S; Rumyantseva, N; Sada, C; Salathe, M; Schmitt, C; Schreiner, J; Schulz, O; Schwingenheuer, B; Schönert, S; Shevchik, E; Shirchenko, M; Simgen, H; Smolnikov, A; Stanco, L; Strecker, H; Tarka, M; Ur, C A; Vasenko, A A; Volynets, O; von Sturm, K; Wagner, V; Walter, M; Wegmann, A; Wester, T; Wojcik, M; Yanovich, E; Zavarise, P; Zhitnikov, I; Zhukov, S V; Zinatulina, D; Zuber, K; Zuzel, G

    2013-09-20

    Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the standard model of particle physics. This Letter reports the results from phase I of the Germanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory (Italy) searching for neutrinoless double beta decay of the isotope (76)Ge. Data considered in the present analysis have been collected between November 2011 and May 2013 with a total exposure of 21.6 kg yr. A blind analysis is performed. The background index is about 1 × 10(-2) counts/(keV kg yr) after pulse shape discrimination. No signal is observed and a lower limit is derived for the half-life of neutrinoless double beta decay of (76)Ge, T(1/2)(0ν) >2.1 × 10(25) yr (90% C.L.). The combination with the results from the previous experiments with (76)Ge yields T(1/2)(0ν)>3.0 × 10(25) yr (90% C.L.).

  9. Results on Neutrinoless Double-β Decay of Ge76 from Phase I of the GERDA Experiment

    Science.gov (United States)

    Agostini, M.; Allardt, M.; Andreotti, E.; Bakalyarov, A. M.; Balata, M.; Barabanov, I.; Barnabé Heider, M.; Barros, N.; Baudis, L.; Bauer, C.; Becerici-Schmidt, N.; Bellotti, E.; Belogurov, S.; Belyaev, S. T.; Benato, G.; Bettini, A.; Bezrukov, L.; Bode, T.; Brudanin, V.; Brugnera, R.; Budjáš, D.; Caldwell, A.; Cattadori, C.; Chernogorov, A.; Cossavella, F.; Demidova, E. V.; Domula, A.; Egorov, V.; Falkenstein, R.; Ferella, A.; Freund, K.; Frodyma, N.; Gangapshev, A.; Garfagnini, A.; Gotti, C.; Grabmayr, P.; Gurentsov, V.; Gusev, K.; Guthikonda, K. K.; Hampel, W.; Hegai, A.; Heisel, M.; Hemmer, S.; Heusser, G.; Hofmann, W.; Hult, M.; Inzhechik, L. V.; Ioannucci, L.; Janicskó Csáthy, J.; Jochum, J.; Junker, M.; Kihm, T.; Kirpichnikov, I. V.; Kirsch, A.; Klimenko, A.; Knöpfle, K. T.; Kochetov, O.; Kornoukhov, V. N.; Kuzminov, V. V.; Laubenstein, M.; Lazzaro, A.; Lebedev, V. I.; Lehnert, B.; Liao, H. Y.; Lindner, M.; Lippi, I.; Liu, X.; Lubashevskiy, A.; Lubsandorzhiev, B.; Lutter, G.; Macolino, C.; Machado, A. A.; Majorovits, B.; Maneschg, W.; Misiaszek, M.; Nemchenok, I.; Nisi, S.; O'Shaughnessy, C.; Pandola, L.; Pelczar, K.; Pessina, G.; Pullia, A.; Riboldi, S.; Rumyantseva, N.; Sada, C.; Salathe, M.; Schmitt, C.; Schreiner, J.; Schulz, O.; Schwingenheuer, B.; Schönert, S.; Shevchik, E.; Shirchenko, M.; Simgen, H.; Smolnikov, A.; Stanco, L.; Strecker, H.; Tarka, M.; Ur, C. A.; Vasenko, A. A.; Volynets, O.; von Sturm, K.; Wagner, V.; Walter, M.; Wegmann, A.; Wester, T.; Wojcik, M.; Yanovich, E.; Zavarise, P.; Zhitnikov, I.; Zhukov, S. V.; Zinatulina, D.; Zuber, K.; Zuzel, G.

    2013-09-01

    Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the standard model of particle physics. This Letter reports the results from phase I of the Germanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory (Italy) searching for neutrinoless double beta decay of the isotope Ge76. Data considered in the present analysis have been collected between November 2011 and May 2013 with a total exposure of 21.6 kg yr. A blind analysis is performed. The background index is about 1×10-2counts/(keVkgyr) after pulse shape discrimination. No signal is observed and a lower limit is derived for the half-life of neutrinoless double beta decay of Ge76, T1/20ν>2.1×1025yr (90% C.L.). The combination with the results from the previous experiments with Ge76 yields T1/20ν>3.0×1025yr (90% C.L.).

  10. Search for 2νββ excited state transitions and HPGe characterization for surface events in GERDA phase II

    Energy Technology Data Exchange (ETDEWEB)

    Lehnert, Bjoern

    2016-03-01

    The search for the neutrinoless double beta (0νββ) decay is one of the most active fields in modern particle physics. This process is not allowed within the Standard Model and its observation would imply lepton number violation and would lead to the Majorana nature of neutrinos. The experimentally observed quantity is the half-life of the decay, which can be connected to the effective Majorana neutrino mass via nuclear matrix elements. The latter can only be determined theoretically and are currently affected by large uncertainties. To reduce these uncertainties one can investigate the well established two-neutrino double beta (2νββ) decay into the ground and excited states of the daughter isotope. These similar processes are allowed within the Standard Model. In this dissertation, the search for 2νββ decays into excited states is performed in {sup 110}Pd, {sup 102}Pd and {sup 76}Ge. Three gamma spectroscopy setups at the Felsenkeller (Germany), HADES (Belgium) and LNGS (Italy) underground laboratories are used to search for the transitions in {sup 110}Pd and {sup 102}Pd. No signal is observed leading to lower half-live bounds (90% C.I.) of 2.9 . 10{sup 20} yr, 3.9 . 10{sup 20} yr and 2.9 . 10{sup 20} yr for the 0/2νββ 2{sup +}{sub 1}, 0{sup +}{sub 1} and 2{sup +}{sub 2} transitions in {sup 110}Pd and 7.9 . 10{sup 18} yr, 9.2 . 10{sup 18} yr and 1.5 . 10{sup 19} yr for the 0/2νββ 2{sup +}{sub 1}, 0{sup +}{sub 1} and 2{sup +}{sub 2} transitions in {sup 102}Pd, respectively. This is a factor of 1.3 to 3 improvement compared to previous limits. The data of Phase I (Nov 2011 - May 2013) of the 0νββ decay experiment GERDA at LNGS is used to search for excited state transitions in {sup 76}Ge. The analysis is based on coincidences between two detectors and finds no signal. Lower half-life limits (90 % C.L.) of 1.6.10{sup 23} yr, 3.7.10{sup 23} yr and 2.3.10{sup 23} yr are obtained for the 2νββ 2{sup +}{sub 1}, 0{sup +}{sub 1} and 2{sup +}{sub 2

  11. Search for the neutrinoless double β-decay in GERDA phase I using a pulse shape discrimination technique

    International Nuclear Information System (INIS)

    Kirsch, Andrea

    2014-01-01

    The Germanium Detector Array (Gerda) experiment, located underground at the INFN Laboratori Nazionali del Gran Sasso (LNGS) in Italy, deploys high-purity germanium detectors to search for the neutrinoless double β-decay (0νββ) of 76 Ge. An observation of this lepton number violating process, which is expected by many extensions of the Standard Model, would not only generate a fundamental shift in our understanding of particle physics, but also unambiguously prove the neutrino to have a non-vanishing Majorana mass component. A first phase of data recording lasted from November 2011 to May 2013 - resulting in a total exposure (defined as the product of detector mass and measurement time) of 21.6 kg.yr. Within this thesis a thorough study of this data with special emphasis on the development and scrutiny of an active background suppression technique by means of a signal shape analysis has been performed. Among several investigated multivariate approaches, particularly a selection algorithm based on an artificial neural network is found to yield the best performance; i.a. the background index close to the Q-value of the 0νββ-decay could be suppressed by 45% to 1.10 -2 cts/(keV.kg.yr), while still retaining a considerably high signal survival fraction of (83±3)% leading to a significant improvement of the experimental sensitivity. The efficiency is derived by a simulation and further validated by substantiated consistency checks availing themselves of measurements taken with different calibration sources and physics data. No signal is observed and a new lower limit of T 0ν 1/2 (90%C.L.)> 2.2. 10 25 yr for the half-life of neutrinoless double β-decay of 76 Ge is established.

  12. Search for the neutrinoless double β-decay in GERDA phase I using a pulse shape discrimination technique

    Energy Technology Data Exchange (ETDEWEB)

    Kirsch, Andrea

    2014-07-09

    The Germanium Detector Array (Gerda) experiment, located underground at the INFN Laboratori Nazionali del Gran Sasso (LNGS) in Italy, deploys high-purity germanium detectors to search for the neutrinoless double β-decay (0νββ) of {sup 76}Ge. An observation of this lepton number violating process, which is expected by many extensions of the Standard Model, would not only generate a fundamental shift in our understanding of particle physics, but also unambiguously prove the neutrino to have a non-vanishing Majorana mass component. A first phase of data recording lasted from November 2011 to May 2013 - resulting in a total exposure (defined as the product of detector mass and measurement time) of 21.6 kg.yr. Within this thesis a thorough study of this data with special emphasis on the development and scrutiny of an active background suppression technique by means of a signal shape analysis has been performed. Among several investigated multivariate approaches, particularly a selection algorithm based on an artificial neural network is found to yield the best performance; i.a. the background index close to the Q-value of the 0νββ-decay could be suppressed by 45% to 1.10{sup -2} cts/(keV.kg.yr), while still retaining a considerably high signal survival fraction of (83±3)% leading to a significant improvement of the experimental sensitivity. The efficiency is derived by a simulation and further validated by substantiated consistency checks availing themselves of measurements taken with different calibration sources and physics data. No signal is observed and a new lower limit of T{sup 0ν}{sub 1/2} (90%C.L.)> 2.2. 10{sup 25} yr for the half-life of neutrinoless double β-decay of {sup 76}Ge is established.

  13. Oceanographic and meteorological data measurements collected from CTD, bottle and other instruments from Gerda, J.E., Pillsbury and Calanus in the North Atlantic Ocean and Gulf of Mexico from 1967-02-24 to 1970-11-13 (NCEI Accession 7100821)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Oceanographic and meteorological data measurements collected from CTD, bottle and other instruments. Data were collected from Gerda, J.E., Pillsbury and Calanus in...

  14. Isotopes for fundamental research 83mKr for KATRIN and 101Rh and 109Cd for XRD studies on planets

    International Nuclear Information System (INIS)

    Rasulbaev, Makhsud

    2011-01-01

    The feasibility of production of 83 Rb from liquid, natural Br at the Bonn Cyclotron was shown. Production of 83 Rb/ 83m Kr generators for KATRIN Collaboration was optimized. 83m Kr release from RbBr residue after the evaporation of the excess Br was studied. A possibility of 83 Rb implantation with 38 % efficiency was shown in the example of non-radioactive 85 Rb implantation. Production optimization of X-ray sources, 101 Rh and 109 Cd, for implementation in XRD analysis set-up at Technical University of Dresden was experimentally investigated at the Bonn Cyclotron. (orig.)

  15. Isotopes for fundamental research {sup 83m}Kr for KATRIN and {sup 101}Rh and {sup 109}Cd for XRD studies on planets

    Energy Technology Data Exchange (ETDEWEB)

    Rasulbaev, Makhsud

    2011-12-16

    The feasibility of production of {sup 83}Rb from liquid, natural Br at the Bonn Cyclotron was shown. Production of {sup 83}Rb/{sup 83m}Kr generators for KATRIN Collaboration was optimized. {sup 83m}Kr release from RbBr residue after the evaporation of the excess Br was studied. A possibility of {sup 83}Rb implantation with 38 % efficiency was shown in the example of non-radioactive {sup 85}Rb implantation. Production optimization of X-ray sources, {sup 101}Rh and {sup 109}Cd, for implementation in XRD analysis set-up at Technical University of Dresden was experimentally investigated at the Bonn Cyclotron. (orig.)

  16. Pulse shape analysis for the GERDA experiment to set a new limit on the half-life of 0νββ decay of {sup 76}Ge

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, Victoria Elisabeth

    2017-01-25

    The GERDA experiment searches for neutrinoless double beta (0νββ) decay of {sup 76}Ge using high purity germanium (HPGe) detectors operated in liquid argon (LAr). The aim is to explore half-lives of the order of 10{sup 26} yr. Therefore, GERDA relies on improved active background reduction techniques such as pulse shape discrimination (PSD) in which the time structure of the germanium signals is analyzed to discriminate signal- from background-like events. Two types of HPGe detectors are operated: semi-coaxial detectors previously used in the Heidelberg-Moscow and IGEX experiments and new Broad Energy Germanium (BEGe) detectors which feature an improved energy resolution and enhanced PSD. In Phase I of the experiment, five enriched BEGe detectors were used for the first time in the search for 0νββ decay. A PSD based on a single parameter, the ratio of the maximum current amplitude over the energy A/E is applied. 83% of the background events in a 232 keV region around Q{sub ββ} are rejected with a high signal efficiency of (92.1 ± 1.9) %. The achieved background index (BI) is (5.4{sup +4.1}{sub -3.4}) . 10{sup -3} (counts)/(keV.kg.yr). This is an improvement by a factor of 10 compared to previous germanium based 0νββ experiments. Phase II of the experiment includes a major upgrade: for further background rejection, the LAr cryostat is instrumented to detect argon scintillation light. Additional 25 BEGe detectors are installed. After PSD and LAr veto a BI of (0.7{sup +1.3}{sub -0.5}) . 10{sup -3} (counts)/(keV.kg.yr) is achieved. This is the best BI achieved in 0νββ experiments so far. A frequentist statistical analysis is performed on the combined data collected in GERDA Phase I and the first Phase II release. A new limit on the half-life of 0νββ decay of {sup 76}Ge is set to T{sup 0ν}{sub 1/2}>5.3.10{sup 25} yr at 90% C.L., with a median sensitivity of T{sup 0ν}{sub 1/2}>4.0.10{sup 25} yr at 90% C.L.

  17. Results on ββ decay with emission of two neutrinos or Majorons in {sup 76}Ge from GERDA Phase I

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M.; Bode, T.; Budjas, D.; Csathy, J.J.; Lazzaro, A.; Schoenert, S. [Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Allardt, M.; Domula, A.; Lehnert, B.; Schneider, B.; Wester, T.; Wilsenach, H.; Zuber, K. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); Bakalyarov, A.M.; Belyaev, S.T.; Lebedev, V.I.; Zhukov, S.V. [National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Balata, M.; D' Andrea, V.; Di Vacri, A.; Junker, M.; Laubenstein, M.; Macolino, C.; Zavarise, P. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); Barabanov, I.; Bezrukov, L.; Doroshkevich, E.; Fedorova, O.; Gurentsov, V.; Kazalov, V.; Kuzminov, V.V.; Lubsandorzhiev, B.; Moseev, P.; Selivanenko, O.; Veresnikova, A.; Yanovich, E. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Barros, N. [Technische Universitaet Dresden, Institut fuer Kern- und Teilchenphysik, Dresden (Germany); University of Pennsylvania, Department of Physics and Astronomy, Philadelphia, PA (United States); Baudis, L.; Benato, G.; Walter, M. [Physik Institut der Universitaet Zuerich, Zurich (Switzerland); Bauer, C.; Heisel, M.; Heusser, G.; Hofmann, W.; Kihm, T.; Kirsch, A.; Knoepfle, K.T.; Lindner, M.; Maneschg, W.; Salathe, M.; Schreiner, J.; Schwingenheuer, B.; Simgen, H.; Smolnikov, A.; Stepaniuk, M.; Wagner, V.; Wegmann, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Becerici-Schmidt, N.; Caldwell, A.; Liao, H.Y.; Majorovits, B.; Palioselitis, D.; Schulz, O.; Vanhoefer, L. [Max-Planck-Institut fuer Physik, Munich (Germany); Bellotti, E. [Universita Milano Bicocca, Dipartimento di Fisica, Milan (Italy); INFN Milano Bicocca, Milan (Italy); Belogurov, S.; Kornoukhov, V.N. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Bettini, A.; Brugnera, R.; Garfagnini, A.; Hemmer, S.; Medinaceli, E.; Sada, C.; Sturm, K. von [Dipartimento di Fisica e Astronomia dell' Universita di Padova, Padua (Italy); INFN Padova, Padua (Italy); Borowicz, D. [Jagiellonian University, Institute of Physics, Cracow (Poland); Joint Institute for Nuclear Research, Dubna (Russian Federation); Brudanin, V.; Egorov, V.; Kochetov, O.; Nemchenok, I.; Rumyantseva, N.; Zhitnikov, I.; Zinatulina, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Cattadori, C. [INFN Milano Bicocca, Milan (Italy); Chernogorov, A.; Demidova, E.V.; Kirpichnikov, I.V.; Vasenko, A.A. [Institute for Theoretical and Experimental Physics, Moscow (Russian Federation); Falkenstein, R.; Freund, K.; Grabmayr, P.; Hegai, A.; Jochum, J.; Schmitt, C.; Schuetz, A.K. [Eberhard Karls Universitaet Tuebingen, Physikalisches Institut, Tuebingen (Germany); Frodyma, N.; Misiaszek, M.; Panas, K.; Pelczar, K.; Wojcik, M.; Zuzel, G. [Jagiellonian University, Institute of Physics, Cracow (Poland); Gangapshev, A. [Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Gusev, K. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Technische Universitaet Muenchen, Physik Department and Excellence Cluster Universe, Munich (Germany); Hult, M.; Lutter, G. [Institute for Reference Materials and Measurements, Geel (Belgium); Inzhechik, L.V. [Institute for Nuclear Research of the Russian Academy of Sciences, Moscow (Russian Federation); Moscow Institute of Physics and Technology, Moscow (Russian Federation); Klimenko, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); International University for Nature, Society and Man ' ' Dubna' ' , Dubna (Russian Federation); Lippi, I.; Stanco, L.; Ur, C.A. [INFN Padova, Padua (Italy); Lubashevskiy, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany); Pandola, L. [INFN Laboratori Nazionali del Sud, Catania (Italy); Pullia, A.; Riboldi, S. [Universita degli Studi di Milano, Dipartimento di Fisica, Milan (Italy); INFN, Milano (Italy); Shirchenko, M. [Joint Institute for Nuclear Research, Dubna (Russian Federation); National Research Centre ' ' Kurchatov Institute' ' , Moscow (Russian Federation); Collaboration: GERDA Collaboration

    2015-09-15

    A search for neutrinoless ββ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices n = 1, 2, 3, 7 were searched for. No signals were found and lower limits of the order of 10{sup 23} yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with {sup 76}Ge. A new result for the half-life of the neutrino-accompanied ββ decay of {sup 76}Ge with significantly reduced uncertainties is also given, resulting in T{sub 1/2}{sup 2ν} = (1.926 ± 0.094) @ x 10{sup 21} yr. (orig.)

  18. Results on ββ decay with emission of two neutrinos or Majorons in {sup 76}Ge from GERDA Phase I

    Energy Technology Data Exchange (ETDEWEB)

    Agostini, M. [Physik Department and Excellence Cluster Universe, Technische Universität München, Munich (Germany); Allardt, M. [Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden (Germany); Bakalyarov, A. M. [National Research Centre “Kurchatov Institute”, Moscow (Russian Federation); Balata, M. [INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi (Italy); Collaboration: GERDA Collaboration; and others

    2015-09-09

    A search for neutrinoless ββ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices n=1,2,3,7 were searched for. No signals were found and lower limits of the order of 10{sup 23} yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with {sup 76}Ge. A new result for the half-life of the neutrino-accompanied ββ decay of {sup 76}Ge with significantly reduced uncertainties is also given, resulting in T{sub 1/2}{sup 2ν}=(1.926±0.094)×10{sup 21} yr.

  19. Systolic blood pressure decline in very old individuals is explained by deteriorating health: Longitudinal changes from Umeå85+/GERDA.

    Science.gov (United States)

    Weidung, Bodil; Toots, Annika; Nordström, Peter; Carlberg, Bo; Gustafson, Yngve

    2017-12-01

    Declining systolic blood pressure (SBP) is common in very old age and is associated with adverse events, such as dementia. Knowledge of factors associated with SBP changes could explain the etiology of this decline in SBP. This study investigated longitudinal changes in socioeconomic factors, medical conditions, drug prescriptions, and assessments and their associations with SBP changes among very old followed individuals.The study was based on data from the Umeå85+/Gerontological Regional Database (GERDA) cohort study, which provided cross-sectional and longitudinal data on participants aged 85, 90, and ≥95 years from 2000 to 2015. Follow-up assessments were conducted after 5 years. The main outcome was a change in SBP. Factors associated with SBP changes were assessed using multivariate linear regression models.In the Umeå85+/GERDA study, 454 surviving individuals underwent follow-up assessment after 5 years. Of these, 297 had SBP measured at baseline and follow-up. The mean change ± standard deviation in SBP was -12 ± 25 mm Hg. SBP decline was associated independently with later investigation year (P = .009), higher baseline SBP (P < .001), baseline antidepressant prescription (P = .011), incident acute myocardial infarction during follow-up (P = .003), new diuretic prescription during follow-up (P = .044), and a decline in the Barthel Activities of Daily Living index at follow-up (P < .001).In conclusion, SBP declines among very old individuals. This decline seems to be associated with initial SBP level, investigation year, and health-related factors. Copyright © 2017 The Authors. Published by Wolters Kluwer Health, Inc. All rights reserved.

  20. Risk analysis and reliability of the GERDA Experiment extraction and ventilation plant at Gran Sasso mountain underground laboratory of Italian National Institute for Nuclear Physics

    International Nuclear Information System (INIS)

    Lombardi, Mara; Garzia, Fabio; Guarascio, Massimo; Giovannone, Enzo Paolo; Giampaoli, Antonio; Musti, Mafalda; Ranalli, Maria Teresa; Perruzza, Roberto; Tartaglia, Roberto

    2017-01-01

    The aim of this study is the risk analysis evaluation about argon release from the GERDA experiment in the Gran Sasso underground National Laboratories (LNGS) of the Italian National Institute for Nuclear Physics (INFN). The GERDA apparatus, located in Hall A of the LNGS, is a facility with germanium detectors located in a wide tank filled with about 70 m"3 of cold liquefied argon. This cryo-tank sits in another water-filled tank (700 m"3 ) at atmospheric pressure. In such cryogenic processes, the main cause of an accidental scenario is lacking insulation of the cryo-tank. A preliminary HazOp analysis has been carried out on the whole system. The risk assessment identified two possible top-events: explosion due to a Rapid Phase Transition - RPT and argon runaway evaporation. Risk analysis highlighted a higher probability of occurrence of the latter top event. To avoid emission in Hall A, the HazOp, Fault Tree and Event tree analyses of the cryogenic gas extraction and ventilation plant have been made. The failures related to the ventilation system are the main cause responsible for the occurrence. To improve the system reliability some corrective actions were proposed: the use of UPS and the upgrade of damper opening devices. Furthermore, the Human Reliability Analysis identified some operating and management improvements: action procedure optimization, alert warnings and staff training. The proposed model integrates the existing analysis techniques by applying the results to an atypical work environment and there are useful suggestions for improving the system reliability. (author)

  1. Risk analysis and reliability of the GERDA Experiment extraction and ventilation plant at Gran Sasso mountain underground laboratory of Italian National Institute for Nuclear Physics

    Directory of Open Access Journals (Sweden)

    Mara Lombardi

    Full Text Available Abstract The aim of this study is the risk analysis evaluation about argon release from the GERDA experiment in the Gran Sasso underground National Laboratories (LNGS of the Italian National Institute for Nuclear Physics (INFN. The GERDA apparatus, located in Hall A of the LNGS, is a facility with germanium detectors located in a wide tank filled with about 70 m3 of cold liquefied argon. This cryo-tank sits in another water-filled tank (700 m3 at atmospheric pressure. In such cryogenic processes, the main cause of an accidental scenario is lacking insulation of the cryo-tank. A preliminary HazOp analysis has been carried out on the whole system. The risk assessment identified two possible top-events: explosion due to a Rapid Phase Transition - RPT and argon runaway evaporation. Risk analysis highlighted a higher probability of occurrence of the latter top event. To avoid emission in Hall A, the HazOp, Fault Tree and Event tree analyses of the cryogenic gas extraction and ventilation plant have been made. The failures related to the ventilation system are the main cause responsible for the occurrence. To improve the system reliability some corrective actions were proposed: the use of UPS and the upgrade of damper opening devices. Furthermore, the Human Reliability Analysis identified some operating and management improvements: action procedure optimization, alert warnings and staff training. The proposed model integrates the existing analysis techniques by applying the results to an atypical work environment and there are useful suggestions for improving the system reliability.

  2. Risk analysis and reliability of the GERDA Experiment extraction and ventilation plant at Gran Sasso mountain underground laboratory of Italian National Institute for Nuclear Physics

    Energy Technology Data Exchange (ETDEWEB)

    Lombardi, Mara; Garzia, Fabio; Guarascio, Massimo; Giovannone, Enzo Paolo; Giampaoli, Antonio; Musti, Mafalda; Ranalli, Maria Teresa; Perruzza, Roberto; Tartaglia, Roberto, E-mail: mara.lombardi@uniroma1.it, E-mail: fabio.garzia@uniroma1.it, E-mail: massimo.guarascio@uniroma1.it [Universita degli Studi di Roma La Sapienza-Engineering Roma (Italy); Corpo Nazionale Vigili del Fuoco L' Aquila (CNVF) (Italy); Istituto Nazionale di Fisica Nucleare - Laboratori del Gran Sasso L' Aquila, Abruzzo (Italy)

    2017-07-15

    The aim of this study is the risk analysis evaluation about argon release from the GERDA experiment in the Gran Sasso underground National Laboratories (LNGS) of the Italian National Institute for Nuclear Physics (INFN). The GERDA apparatus, located in Hall A of the LNGS, is a facility with germanium detectors located in a wide tank filled with about 70 m{sup 3} of cold liquefied argon. This cryo-tank sits in another water-filled tank (700 m{sup 3} ) at atmospheric pressure. In such cryogenic processes, the main cause of an accidental scenario is lacking insulation of the cryo-tank. A preliminary HazOp analysis has been carried out on the whole system. The risk assessment identified two possible top-events: explosion due to a Rapid Phase Transition - RPT and argon runaway evaporation. Risk analysis highlighted a higher probability of occurrence of the latter top event. To avoid emission in Hall A, the HazOp, Fault Tree and Event tree analyses of the cryogenic gas extraction and ventilation plant have been made. The failures related to the ventilation system are the main cause responsible for the occurrence. To improve the system reliability some corrective actions were proposed: the use of UPS and the upgrade of damper opening devices. Furthermore, the Human Reliability Analysis identified some operating and management improvements: action procedure optimization, alert warnings and staff training. The proposed model integrates the existing analysis techniques by applying the results to an atypical work environment and there are useful suggestions for improving the system reliability. (author)

  3. Monitoring the energy scale of KATRIN with conversion electrons of a solid {sup 83m}Kr source as nuclear standard

    Energy Technology Data Exchange (ETDEWEB)

    Schloesser, Klaus [IKP, Karlsruher Institut fuer Technologie (Germany); Collaboration: KATRIN-Collaboration

    2016-07-01

    For KATRIN to be able to achieve the desired sensitivity of 200 meV/c{sup 2} for the effective electron neutrino mass, it is of crucial importance that the energy scale of the main spectrometer (18.6 keV) is under control within +/-60 mV at any given time over the planned measurement time of approximately 5 years. Besides conventional high voltage dividers and high precision volt meters, a nuclear standard will be deployed additionally in a separate spectrometer of MAC-E filter type. The filter electrodes of both spectrometers are connected galvanically. For permanent and continuous monitoring an easy to use ion implanted source containing the noble gas {sup 83m}Kr was developed and qualified for HV monitoring at the ppm level in the 30 kV regime. This talk presents the methods applied and the achievements made.

  4. Constituents in oil field produced waters discharged into the Loch Katrine wetland complex, Park County, Wyoming, and their bioconcentration in the aquatic bird food chain

    International Nuclear Information System (INIS)

    Ramirez, P. Jr.

    1993-01-01

    Trace elements, hydrocarbons and radium-226 concentrations were analyzed in water, sediment and biota from the Loch Katrine wetlands at Park County, WY in 1992. This study was designed to determine if produced waters pose a risk to aquatic birds inhabiting the wetlands. The radium-226 concentration recorded at the Sidney Battery Discharge in July, 93.7 pCi/l, exceeded WY DEQ's 60 pCi/l standard for the protection of aquatic life. Water quality acute criteria were exceeded for arsenic, Custer Lake, July, and for zinc, Sidney Battery discharge, April. Radium-226 concentrations in sediments from Custer Lake and Sidney Battery Discharge exceeded the 3 pCi/g background for Oregon Basin soils. The radium-226 concentration in aquatic vegetation, Custer Lake, 29.5 pCi/g, greatly exceeded the 2.9 pCi/g average concentration found in plants growing in uranium mill tailings in South Dakota. Radium-226 in aquatic vegetation may be available to aquatic birds. Oil and grease concentrations, Sidney Battery Discharge, exceeded the 10 mg/l standard of WY DEQ. Sediment hydrocarbon concentrations were highest at Sidney Battery Discharge, 6.376 μg/g, followed by Custer Lake, 1.104 μg/g. Benzo(a)pyrene was not detected in gadwalls from Loch Katrine but was detected in northern shovelers from Custer Lake. Benzo(a)pyrene concentrations in northern shoveler bile ranged from 500 to 960 ng/g (ppb) wet weight. Benzo(a)pyrene concentrations in shovelers is indicative of exposure to petroleum hydrocarbons

  5. [Gerda Alexander eutonia].

    Science.gov (United States)

    Murcia, R

    1991-01-01

    One of the most important objectives of euronia is to find the adequate tonus in situations of total rest or of maximum dynamism. The dimension of tonic mastery together with relaxation make eutonia an extremely useful method in phoniatrics and orthophony.

  6. Characterization of the liquid argon veto of the GERDA experiment and its application for the measurement of the "7"6Ge half-life

    International Nuclear Information System (INIS)

    Wegmann, Anne Christin

    2017-01-01

    The search for neutrinoless double-beta decay (0νββ) is one of the most active fields in modern particle physics as the observation of this process would prove lepton number violation and imply new physics beyond the Standard Model of particle physics. The GERDA experiment searches for this decay by operating bare Germanium detectors, enriched in the ββ isotope "7"6Ge, in liquid argon. For the first time, a ββ-experiment combines the excellent properties of semiconductor Germanium detectors with an active background suppression technique based on the simultaneous detection of liquid argon scintillation light by photomultiplier tubes and silicon photomultipliers coupled to scintillating fibers (LAr veto). The LAr veto has been successfully operated during the first six months of Phase II of the experiment and yielded - in combination with a Germanium detector pulse shape discrimination technique - a background index of (0.7"+"1"."1_-_0_._5).10"-"3 ((cts)/(kg.keV.yr)). With an ultimate exposure of 100 kg.yr this will allow for a 0νββ-decay half-life sensitivity of the Gerda Phase II experiment of 10"2"6 yr. Double-beta decay under the emission of two neutrinos (2νββ) is a second-order process but which is allowed by the Standard Model. The excellent background reduction of the LAr veto results in an unprecedented signal-to-background ratio of 30:1 in the energy region dominated by 2νββ-decay of "7"6Ge. The remaining background after LAr veto is estimated using the suppression factor from calibration source measurements and results in a measurement of T"2"ν_1_/_2=(1.98±0.02(stat)±0.05(syst)).10"2"1 yr and T_1_/_2"2"ν=(1.92 ±0.02(stat)±0.11(syst)).10"2"1 yr based on two different detector designs and give uncertainties on the detector parameters but both with improved systematic uncertainties in comparison to earlier measurements.

  7. Liquid argon as active shielding and coolant for bare germanium detectors. A novel background suppression method for the GERDA 0νββ experiment

    International Nuclear Information System (INIS)

    Peiffer, J.P.

    2007-01-01

    Two of the most important open questions in particle physics are whether neutrinos are their own anti-particles (Majorana particles) as required by most extensions of the StandardModel and the absolute values of the neutrino masses. The neutrinoless double beta (0νββ) decay, which can be investigated using 76 Ge (a double beta isotope), is the most sensitive probe for these properties. There is a claim for an evidence for the 0νββ decay in the Heidelberg-Moscow (HdM) 76 Ge experiment by a part of the HdM collaboration. The new 76 Ge experiment Gerda aims to check this claim within one year with 15 kg.y of statistics in Phase I at a background level of ≤10 -2 events/(kg.keV.y) and to go to higher sensitivity with 100 kg.y of statistics in Phase II at a background level of ≤10 -3 events/(kg.keV.y). In Gerda bare germanium semiconductor detectors (enriched in 76 Ge) will be operated in liquid argon (LAr). LAr serves as cryogenic coolant and as high purity shielding against external background. To reach the background level for Phase II, new methods are required to suppress the cosmogenic background of the diodes. The background from cosmogenically produced 60 Co is expected to be ∝2.5.10 -3 events/(kg.keV.y). LAr scintillates in UV (λ=128 nm) and a novel concept is to use this scintillation light as anti-coincidence signal for background suppression. In this work the efficiency of such a LAr scintillation veto was investigated for the first time. In a setup with 19 kg active LAr mass a suppression of a factor 3 has been achieved for 60 Co and a factor 17 for 232 Th around Q ββ = 2039 keV. This suppression will further increase for a one ton active volume (factor O(100) for 232 Th and 60 Co). LAr scintillation can also be used as a powerful tool for background diagnostics. For this purpose a new, very stable and robust wavelength shifter/reflector combination for the light detection has been developed, leading to a photo electron (pe) yield of as much as

  8. Characterization of the liquid argon veto of the GERDA experiment and its application for the measurement of the {sup 76}Ge half-life

    Energy Technology Data Exchange (ETDEWEB)

    Wegmann, Anne Christin

    2017-01-18

    The search for neutrinoless double-beta decay (0νββ) is one of the most active fields in modern particle physics as the observation of this process would prove lepton number violation and imply new physics beyond the Standard Model of particle physics. The GERDA experiment searches for this decay by operating bare Germanium detectors, enriched in the ββ isotope {sup 76}Ge, in liquid argon. For the first time, a ββ-experiment combines the excellent properties of semiconductor Germanium detectors with an active background suppression technique based on the simultaneous detection of liquid argon scintillation light by photomultiplier tubes and silicon photomultipliers coupled to scintillating fibers (LAr veto). The LAr veto has been successfully operated during the first six months of Phase II of the experiment and yielded - in combination with a Germanium detector pulse shape discrimination technique - a background index of (0.7{sup +1.1}{sub -0.5}).10{sup -3} ((cts)/(kg.keV.yr)). With an ultimate exposure of 100 kg.yr this will allow for a 0νββ-decay half-life sensitivity of the Gerda Phase II experiment of 10{sup 26} yr. Double-beta decay under the emission of two neutrinos (2νββ) is a second-order process but which is allowed by the Standard Model. The excellent background reduction of the LAr veto results in an unprecedented signal-to-background ratio of 30:1 in the energy region dominated by 2νββ-decay of {sup 76}Ge. The remaining background after LAr veto is estimated using the suppression factor from calibration source measurements and results in a measurement of T{sup 2ν}{sub 1/2}=(1.98±0.02(stat)±0.05(syst)).10{sup 21} yr and T{sub 1/2}{sup 2ν}=(1.92 ±0.02(stat)±0.11(syst)).10{sup 21} yr based on two different detector designs and give uncertainties on the detector parameters but both with improved systematic uncertainties in comparison to earlier measurements.

  9. Liquid argon as active shielding and coolant for bare germanium detectors. A novel background suppression method for the GERDA 0{nu}{beta}{beta} experiment

    Energy Technology Data Exchange (ETDEWEB)

    Peiffer, J.P.

    2007-07-25

    Two of the most important open questions in particle physics are whether neutrinos are their own anti-particles (Majorana particles) as required by most extensions of the StandardModel and the absolute values of the neutrino masses. The neutrinoless double beta (0{nu}{beta}{beta}) decay, which can be investigated using {sup 76}Ge (a double beta isotope), is the most sensitive probe for these properties. There is a claim for an evidence for the 0{nu}{beta}{beta} decay in the Heidelberg-Moscow (HdM) {sup 76}Ge experiment by a part of the HdM collaboration. The new {sup 76}Ge experiment Gerda aims to check this claim within one year with 15 kg.y of statistics in Phase I at a background level of {<=}10{sup -2} events/(kg.keV.y) and to go to higher sensitivity with 100 kg.y of statistics in Phase II at a background level of {<=}10{sup -3} events/(kg.keV.y). In Gerda bare germanium semiconductor detectors (enriched in {sup 76}Ge) will be operated in liquid argon (LAr). LAr serves as cryogenic coolant and as high purity shielding against external background. To reach the background level for Phase II, new methods are required to suppress the cosmogenic background of the diodes. The background from cosmogenically produced {sup 60}Co is expected to be {proportional_to}2.5.10{sup -3} events/(kg.keV.y). LAr scintillates in UV ({lambda}=128 nm) and a novel concept is to use this scintillation light as anti-coincidence signal for background suppression. In this work the efficiency of such a LAr scintillation veto was investigated for the first time. In a setup with 19 kg active LAr mass a suppression of a factor 3 has been achieved for {sup 60}Co and a factor 17 for {sup 232}Th around Q{sub {beta}}{sub {beta}} = 2039 keV. This suppression will further increase for a one ton active volume (factor O(100) for {sup 232}Th and {sup 60}Co). LAr scintillation can also be used as a powerful tool for background diagnostics. For this purpose a new, very stable and robust wavelength

  10. Background reduction of the KATRIN spectrometers. Transmission function of the pre-spectrometer and systematic tests of the main-spectrometer wire electrode

    Energy Technology Data Exchange (ETDEWEB)

    Prall, Matthias

    2011-07-04

    The KArlsruhe TRItium Neutrino experiment, KATRIN will determine the mass of the anti {nu}{sub e} with a sensitivity of 0.2 eV (90% C.L.) via a measurement of the {beta}-spectrum of tritium decaying in a windowless gaseous molecular tritium source near its endpoint of 18.57 keV. This approach relies exclusively on the relativistic kinematics of the decay products rendering the experiment model independent and reducing the systematic uncertainty. An ultra-low background of a few mHz and an energy resolution of 0.93 eV are among the requirements to reach the sensitivity. These demands are fulfilled with the main spectrometer (MS). While the {beta}-decay electrons are guided by a magnetic field through the experiment, the MS acts as a high-pass filter for the {beta}-decay electrons. Only those above an energy barrier, the retarding potential, are transmitted to the detector. The last about 30 eV of the T{sub 2} {beta}-spectrum will be scanned in this way. The MS is equipped with a 650 m{sup 2}, two-layered, UHV compatible and quasi-massless wire electrode suppressing secondary electron background originating at the main-spectrometer walls and caused by residual radioactivity and cosmic muons. Its energy resolution of 0.93 eV is only achieved, if a large part of the 248 wire electrode modules, which determine the electric field inside the MS, has a mechanical precision of 0.2 mm. Not a single of the about 28.000 wires of the electrode must break during the lifetime of KATRIN. A 2-dimensional laser sensor for contact-less position (precision about 0.01 mm) and tension (precision about 0.04 N) measurements was developed and applied, to firstly, verify the mechanical precision of the electrode modules and secondly, to examine their reliability. A 3-dimensional coordinate measurement table was automated to perform these measurements in a clean room. This table was also used to verify the precision of components using a camera system and image recognition methods (0.05 mm

  11. Rock kinoekraanil / Katrin Rajasaare

    Index Scriptorium Estoniae

    Rajasaare, Katrin

    2008-01-01

    7.-11. juulini kinos Sõprus toimuval filminädalal "Rock On Screen" ekraanile jõudvatest rockmuusikuid portreteerivatest filmidest "Lou Reed's Berlin", "The Future Is Unwritten: Joe Strummer", "Control: Joy Division", "Hurriganes", "Shlaager"

  12. Biennaalitsirkus, biennaalileib / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2007-01-01

    52. Veneetsia biennaalist. Eesti paviljonis esineb Marko Mäetamm näitusega "I love my family". Lähemalt prantsuse kunstniku Sophie Calle ja inglise kunstniku Tracey Emini töödest. Hiina kunstnike Yang Fudongi filmist "Seitse intellektuaali bambusmetsas" ja Yang Zhenzhongi videoinstallatsioonist "I Will Die"

  13. Katrin Denev pokazala harakter

    Index Scriptorium Estoniae

    2006-01-01

    Veneetsia 63. filmifestivali auhinnatutest, kellest vaid Stephen Frears'i filmis "Kuninganna" ("The Queen") peaosa kehastanud Helen Mirren oli üks favoriitidest. Parima filmi peaauhind Kuldlõvi läks üllatuslikult Hiina režissööri Jia Zhang-Ke filmile "Vaikelu" ("Dong"). Ka teistest Veneetsia 63. filmifestivali võitjatest. Festivali žüriid juhatas Catherine Deneuve

  14. Naiste maailm / Katrin Rajasaare

    Index Scriptorium Estoniae

    Rajasaare, Katrin

    2001-01-01

    Pimedate Ööde V filmifestivalil näidatavast kolmest mängufilmist : Stefan Jägeri "Sünnipäev", Saksamaa 2001; Catherine Corsini "Proov", Prantsusmaa 2001; Rakhsan Bani Etemad "Linna kesta all", Iraan 2001

  15. Teistmoodi pulmafotod / Katrin Ruus

    Index Scriptorium Estoniae

    Ruus, Katrin

    2009-01-01

    Traditsioonilistest ja ebatraditsioonilistest tähtpäevafotodest. Dmitri Kotjuhi pildistatud pulmafotodest, kus on katsetatud erinevate keskkondadega. Tema fotosid on eksponeeritud näitusel "Argipäeva hetked"

  16. EITSA teatab / Katrin Pink

    Index Scriptorium Estoniae

    Pink, Katrin

    2005-01-01

    Eesti Infotehnoloogia Sihtasutuse konkursist "Mobiilsustoetused - ITK erialade doktorantide mobiilsus", mille eesmärgiks on toetada Eesti avalik-õiguslike ülikoolide info- ja kommunikatsioonitehnoloogia erialade doktorantide osavõttu erialastest konverentsidest, täienduskursustest, suve- ja talvekoolidest välisriikides

  17. Kas meediatsirkus? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2006-01-01

    Turner Prize'i 2006. a. kunstipreemia näitusest Londonis Tate-Britainis. Nominente oli neli: Tomma Abts, Mark Titchner, Phil Collins ja Rebecca Warren. Preemia pälvis saksa-inglise maalikunstnik Tomma Abts. Pikemalt Phil Collinsi videost "Reaalse naasmine"

  18. Barcelona Biennaalid / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2006-01-01

    Euroopa maastikuarhitektuuri biennaalist teemal "Landscape: a product - a production". 2003. a. Rosa Barba eripreemia pälvis laviinitõke Islandil (Reynir Vilhjalmsson), 2006. a. võidutööd: Pedra Tosca park Gironas (RCR Arhitektid), tööstusmaastikule loodud park-märgala (David Verport). Euroopa avaliku linnaruumi preemia konkursist võtsid esmakordselt osa eestlased nelja tööga (Rakvere keskväljak, Tubina mälestusmärk Tartus, trepp Rakvere Vallimäele, KUMU kompleks). Võitsid Horvaatia töö Morske Orgulje (Zadar), arhitekt Nikola Basic ja Hollandi töö A8ernA (Zaanstad), autor NL Architects

  19. Harmonisasi SAK dan Aturan Pajak: Mungkinkah?

    Directory of Open Access Journals (Sweden)

    Heri Sukendar Sukendar

    2014-11-01

    Full Text Available This paper is intended to illustrate the fact that the case today, especially in Indonesia's commitment to convergency of IFRS, where the decision was certainly not out of global importance that in order to improve the information from the financial statements of companies in Indonesia. In addition, the IFRS Convergence is one of the Indonesian government agreements as a member of the G20 forum, the results of the meeting of G20 leaders in Washington DC forum, 15 November 2008. On the other hand, the tax rules that apply are still using the old accounting standards and do not follow the development of increasingly different. Previous differences between GAAP and tax rules are limited to the "deductible and non-deductible" which is resolved through fiscal reconciliation mechanism with positive correction and correction negatipnya. The widening gap today would be a separate issue for IAI as the organization of the accounting profession. Tax Accountant compartment formation in March 2014 is a serious evidence of the organization as an anticipation, particularly in an effort to bridge the gap widening

  20. keV-Scale sterile neutrino sensitivity estimation with time-of-flight spectroscopy in KATRIN using self-consistent approximate Monte Carlo

    Science.gov (United States)

    Steinbrink, Nicholas M. N.; Behrens, Jan D.; Mertens, Susanne; Ranitzsch, Philipp C.-O.; Weinheimer, Christian

    2018-03-01

    We investigate the sensitivity of the Karlsruhe Tritium Neutrino Experiment (KATRIN) to keV-scale sterile neutrinos, which are promising dark matter candidates. Since the active-sterile mixing would lead to a second component in the tritium β-spectrum with a weak relative intensity of order sin ^2θ ≲ 10^{-6}, additional experimental strategies are required to extract this small signature and to eliminate systematics. A possible strategy is to run the experiment in an alternative time-of-flight (TOF) mode, yielding differential TOF spectra in contrast to the integrating standard mode. In order to estimate the sensitivity from a reduced sample size, a new analysis method, called self-consistent approximate Monte Carlo (SCAMC), has been developed. The simulations show that an ideal TOF mode would be able to achieve a statistical sensitivity of sin ^2θ ˜ 5 × 10^{-9} at one σ , improving the standard mode by approximately a factor two. This relative benefit grows significantly if additional exemplary systematics are considered. A possible implementation of the TOF mode with existing hardware, called gated filtering, is investigated, which, however, comes at the price of a reduced average signal rate.

  1. Ähvardus : olümpiamängude teleülekanne jääb ära / Kai Kalamees

    Index Scriptorium Estoniae

    Kalamees, Kai

    2005-01-01

    Riigikogu liige Jaak Allik peab vajalikuks leida ETV-le lisamiljoneid olümpiamängude ja jalgpalli MM-i teleülekanneteks. Riigikogu liikmed Olav Aarna ja Katrin Saks kritiseerisid valitsust, et rahvusringhäälingu arengukava suhtes pole võetud seisukohta. Kultuuriminister Raivo Palmaru arvamusi. Lisa: Ringhäälingureform tulekul

  2. Katrin Schütz: Geschlechterentwürfe im literarischen Werk von Lou Andreas-Salomé unter Berücksichtigung ihrer Geschlechtertheorie. Würzburg: Verlag Königshausen & Neumann 2008

    Directory of Open Access Journals (Sweden)

    Romana Weiershausen

    2009-03-01

    Full Text Available Katrin Schütz hat eine Studie zu Geschlechterkonzeptionen in Lou Andreas-Salomés Frühwerk vorgelegt, in der auch die bislang wenig berücksichtigten literarischen Texte der Autorin ausgewertet werden. Die Anlage zielt auf eine Überblicksdarstellung, hinter der die differenzierende Reflexion der einzelnen Thesen zurück steht: Schütz geht es um die Konturierung einer Typologie. Durch die erweiterte Textgrundlage wird dabei Neues erschlossen, woraus sich anregende Impulse für die Jahrhundertwende-Forschung ergeben.Katrin Schütz’s study of gender conceptions in Lou Andreas-Salomé’s early work considers those literary texts often ignored by scholarship. The study is constructed as an overview, in light of which a differentiated reflection on the individual theses falls short: Schütz intends to formulate a typology. The expanded textual basis allows for the creation of something new, which will in turn provide inspirational impulses for turn-of-the-century research.

  3. Positive effects, side effects, and adverse events of clinical holistic medicine. A review of Gerda Boyesen's nonpharmaceutical mind-body medicine (biodynamic body-psychotherapy) at two centers in the United Kingdom and Germany.

    Science.gov (United States)

    Allmer, Charlotte; Ventegodt, Søren; Kandel, Isack; Merrick, Joav

    2009-01-01

    To review adverse events of intensive, clinical holistic medicine (CHM) as it is practiced in holistic body-psychotherapy in England and Germany. Gerda Boyesen's "biodynamic body-psychotherapy" (BBP) is an intensive type of holistic mind-body medicine used by Boyesen at two centers. About 13,500 patients were treated during 1985-2005 period and studied for side effects and adverse events. The first author worked closely with Boyesen 1995-2005 with full insight in all aspects of the therapy and provided the data on side-effects. Therapy helped chronic patients with physical, psychological, sexual, psychiatric and existential problems to improve health, ability, and quality of life (NNT (number needed to treat) = 1-3). Effective in the treatment of mentally ill patients (schizophrenia, anxiety, poor mental health, low general ability). For retraumatization, brief reactive psychosis, depression, depersonalization and derealization, implanted memories, side effects from manipulations of the body, suicide/suicide attempts, hospitalization for physical and mental health problem during or 90 days after treatment, NNH (number needed to harm) > 13,500. Intensive, holistic non-drug medicine is helpful for physical, sexual, psychological, psychiatric and existential problems and is completely safe for the patient. The therapeutic value TV = NNH/NNT > 5,000. Altogether about 18,000 patients treated with different subtypes of CHM in four different countries have now been evaluated for effects, side effects and adverse events, with similar results.

  4. Pilk piiri taha / Katrin Talts

    Index Scriptorium Estoniae

    Talts, Katrin

    2004-01-01

    Lasteteatrite festivalist "Bravo", Sankt-Peterburgi Teatriakadeemia 225. aastapäeva pidustustest, XXVIII "Humana" festivalist, XVIII rahvusvahelisest koreograafiakonkursist Hannoveris, IX rahvusvahelisest tantsufestivalist "Steps" ja Rootsi tantsubiennaalist 2004

  5. "Private Views" Ungaris / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1999-01-01

    Inglise ja eesti kunstnike ühisprojekt 8. augustini Dunaujvarosi Kaasaegse Kunsti Instituudis Ungaris. Kuraatorid Pam Skelton, Mare Tralla. "Private Views" ülesandeks on keskenduda ruumi mõistele naiskunstniku pilgu läbi

  6. 'Private Views' Ungaris / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1999-01-01

    Inglise js eesti kunstnike ühisprojekt 8. augustini Dunaujvarosi Kaasaegse Kunsti Instituudis Ungaris. Kuraatorid Pam Skelton, Mare Tralla. 'Private Views' ülesandeks on keskenduda ruumi mõistele naiskunstniku pilgu läbi.

  7. Lapsed ja digikultuur / Katrin Kuusik

    Index Scriptorium Estoniae

    Kuusik, Katrin

    2015-01-01

    Vestlusest TLÜ BFMi koolitusjuhi ja laste filmikooli juhendajaga tema poolt laste ja õpetajatega läbi viidud hariduslikest projektidest, mille eesmärgiks on tutvustada ja rakendada erinevaid filmi ja animatsiooni nippe koolitöös

  8. Raamatu teekond Euroopas / Katrin Kaugver

    Index Scriptorium Estoniae

    Kaugver, Katrin, 1950-

    2006-01-01

    Esimese Eesti raamatukoguna sai TLÜ AR Euroopa Teadusraamatukogude Konsortsiumi (CERL) täisliikmeks. CERL kogub, haldab ja levitab informatsiooni Euroopa varajase trükitud kultuuripärandi kohta. Täisliikme staatus annab raamatukogule lugejatele juurdepääsu andmebaasile HPB (Hand Press Book Database)

  9. Teatrimaailm / Mari Kolle, Katrin Talts

    Index Scriptorium Estoniae

    Kolle, Mari

    2005-01-01

    23. märtsil avatakse unikaalne interneti-projekt "Cultu.Ru!" ; Londoni Criterion Theatre'is etendub "Amajuba. Me tõuseme lendu nagu tuvid", mida esitavad Lõuna-Aafrika viis näitlejat, kes räägivad oma elust ; ITI on tänavu ülemaailmse teatripäeva pühendanud naistele, korraldades rahvusvahelise kübernäituse "Naised teatris", mis esitleb eri maade teatripraktikuid : naislavastajaid, näitekirjanikke ja näitlejannasid XX sajandi II poolel ; Pariisis tegutsevast Päikeseteatrist ning teatri asutajast ja juhist A. Mnouchkine'ist

  10. Näitused / Katrin Kurik

    Index Scriptorium Estoniae

    Kurik, Katrin

    1998-01-01

    Linnagalerii Tallinnas: Anna Pauli tekstiilid ja Andras Huberi skulptuurid (Ungari); Kullo lastegalerii: Heli Männi ja Tondiraba keskkooli kunstiklasside õpilaste "Veneetsia maskid"; Tammsaare majamuuseum: Kersti Karu keraamika

  11. Parimate teenindusraamatute otsinguil / Katrin Aedma

    Index Scriptorium Estoniae

    Aedma, Katrin

    2007-01-01

    Klienditeenindus ning kuidas seda arendada. Tabel: Johari aken. Teenindusraamatute tutvustus: Lars-Olof NΜssén "Parem teenindamine. Kuidas enesearenduse kaudu saavutada klientide rahulolu"; Malle Karjatse "Miks klient rahul ei ole? Kuidas meeldida eesti kliendile"

  12. "Puuduvate ajalugude" kirjutamisest / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2008-01-01

    Arvustus: Baigell, Renee. Baigell, Matthew. Peeling potatoes, painting pictures : women artists in post-Soviet Russia, Estonia, and Latvia : the first decade. New Brunswick : Rutgers University Press, 2001

  13. Vaikne torm Barcelonas / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2009-01-01

    2008. a. sügisel Barcelonas toimunud 5. Euroopa maastikuarhitektuuri biennaalist "Torm ja tung", sümpoosionist. Rosa Barba nimelise võistluse peaauhinna võitis Kristine Jenseni büroo Taanist projektiga "Nicolai". Auhinnavõistlusel ja valitud tööde näitusel esindas Eestit Tallinna Harju tänava park

  14. Bioenergia tootmise majandusmudelid / Katrin Heinsoo

    Index Scriptorium Estoniae

    Heinsoo, Katrin, 1962-

    2012-01-01

    Euroopa Liidus algatatud projekti "Bioenergia talu arendusplaan" eesmärk on anda talunikele ja väikeettevõtjatele struktuurset ja erapooletut informatsiooni bioenergia ja biokütuste tootmisest ja kasutamisest

  15. Pilk piiri taha / Katrin Talts

    Index Scriptorium Estoniae

    Talts, Katrin

    2004-01-01

    Rahvusvahelistest teatri- ja tantsufestivalidest - Hollandi tantsufestivalist "Springdance", Doonau festivalist Austrias, Taani lasteteatrite festivalist, kaunite kunstide festivalist "Kunstenfestival des Arts" Brüsselis, Vilniuse rahvusvahelisest tantsufestivalist "New Baltic Dance", teatrifestivalist "Theatertreffen Berlin", Vilniuse teatrifestivalist "New Drama in Action" ja poola teatrifestivalist "Kontakt"

  16. Pilk piiri taha / Katrin Talts

    Index Scriptorium Estoniae

    Talts, Katrin

    2004-01-01

    Rahvusvahelistest festivalidest - Londoni rahvusvaheline miimifestival, IV rahvusvaheline naiste teatrifestival ja -kohtumine, tantsufestival "British Dance Edition 2004", Euroopa lasteteatrite festival "Panoptikum", kus Eestit on kutsutud esindama VAT Teater lavastusega " Lend üle ookeani" -, Belgia tantsukooli PARTS eelvoorust Tallinnas, "Latvian Showcase"'ist, kus tutvustatakse paremaid läti uuslavastusi ja Helsingis toimuvast ekspeditsioonist tundmatusse (loominguline retk Põhja- ja Baltimaade teatrirahvale)

  17. Armastus keha vastu / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1999-01-01

    Peamiselt New Yorgis tegutseva ungari-ameerika kunstniku Orshi Drozdiku (s. 1946) töödest "Medical Erotica" (1984) ja "Manufacturing the Self, Body Self" (1984-93), mida eksponeeritakse ühtse installatsioonina ja kuuluvad Budapesti kaasaegse kunsti muuseumi ehk Ludwigi muuseumi püsiekspositsiooni

  18. Riskikapital vajab riigi kehtestatud mängureegleid / Peeter Saks

    Index Scriptorium Estoniae

    Saks, Peeter

    2004-01-01

    AS-i Suprema Securities juhatuse esimehe sõnul on Euroopa riskikapitali turul selge nõudlus sobiva seadusliku raamistiku ja hea mainega riigi või piirkonna järele, Eestil on praegu võimalus kujuneda Euroopa üheks riskikapitali keskuseks. Autori arvates peaks esimeseks sammuks olema eraldi riskikapitali seaduse loomine. Vt. samas: Andrus Ansip, Taavi Veskimägi ja Linnar Viik vastavad küsimusele, kas Eesti vajab riiklikku riskikapitali fondi

  19. Kas holokaust võib korduda? / Elhonen Saks

    Index Scriptorium Estoniae

    Saks, Elhonen, 1927-

    2000-01-01

    Eestit külastas USA Kongressi Esindajatekoja välissuhete komisjoni liige Tom Lantos. Dokumentaalfilm "Viimased päevad" ("The Last Days") Eesti välisministeeriumi pressikeskuses. režissöör James Moll : Ameerika Ühendriigid 1998. Survivors of the Shoah Visual History Foundation algatus. Filmi esitusel osalesid ka L. Meri ja T. H. Ilves.

  20. KUALITAS LAPORAN KEUANGAN UMKM SERTA PROSPEK IMPLEMENTASI SAK ETAP

    Directory of Open Access Journals (Sweden)

    Rizki Rudiantoro

    2012-06-01

    Full Text Available This study examines the effect of quality of the SMEs’ financial statements on level of credit received by SMEs, as well as prospect of financial accounting standard for entity without public accountability (FAS EWPA implementation in 2011 to improve the quality of the financial statements of SMEs. The data of this study is obtained from the questionnaires returned by 50 SME entrepreneurs in the area of Jakarta, Bogor, Depok, and other parts of Java. The results of this study show that the quality of SME financial statements do not affect the amount of credit received by SMEs. This may be due to the low quality of financial statements of SMEs so that banks are still in doubt with the relevancy and reliability of financial reporting. Prospect of FAS EWPA implementation to improve the quality of financial report may have been constrained due to the low understanding of the SME entrepreneurs over the FAS EWPA.

  1. Necip Fazıl Kısakürek’in “Kaldırımlar” Şiiri Üzerine Dil Bilimsel Bir Çözümleme A Linguistic Analysis On Necip Fazıl Kısakurek’s Poem Called As ‘Kaldırımlar’

    Directory of Open Access Journals (Sweden)

    Yusuf TEPELİ

    2013-03-01

    önüyle şiirin başarısında ve kalıcılığında büyük paya sahiptir. Şiir dilden ayrı düşünülemeyeceği için şiir eleştirisi de dilden bağımsız gerçekleştirilemez. Şiirin yansıttığı duyguları, okuyucuya yaşattığı atmosferi birtakım öznel değerlendirmelerle aktarmak yerine tamamen metnin kendi söz varlığına dayanan, bilimsel bir yöntemle açıklamak ihtiyacı bu çalışmanın yapılmasında etkili olmuştur. Bu çalışma için Necip Fazıl Kısakürek’in şiirinin tercih edilmesinde şairin sapmalar ve aktarmalarla özgün imgeler yaratması, ses ögelerinden bolca yararlanması, konuşulan dilin verdiği rahat söyleyişi yakalaması etkili olmuştur. Şair kişinin yoğun iç hesaplaşmalarının, ruh çalkantılarının yansımalarını dış dünyanın gerçekliğiyle aktardığı mistik şiirler kaleme almıştır. “Kaldırımlar” şiiri tüm bu nitelikleri içermesi bakımından bizlere ideal bir dil malzemesi sağlamaktadır.Bu çalışmada, Necip Fazıl Kısakürek’in Kaldırımlar adlı şiiri dilbilimsel bakışla çözümlenmeye çalışılmıştır. Bunun için Doğan Aksan'ın "Şiir Dili ve Türk Şiir Dili" adlı eseri temel alınarak, Aksan’ın değişik şiir örnekleri üzerinde gösterdiği şiir inceleme yöntemi bir Kaldırımlar şiiri üzerinde uygulanmıştır.İki bölümden oluşan çalışmanın ilk bölümünde kısaca sözcük türleri üzerinde durulmuş, ikinci bölümde ise metnin söz varlığını oluşturan sözcüklerin dil bilimsel/ anlam bilimsel/ gösterge bilimsel incelemesi yapılmış, bulgular tablolaştırılarak aktarılmıştır. Metinde geçen sözcükler tür, anlam yönü, ses ögeleri bakımından incelenmiş, bunların duygu değerleri, geçiş sıklıkları ve birbirleriyle ilişkileri tespit edilerek çözümlemeye gidilmiştir.

  2. Jutud / Jerome K Jerome ; tlk. Gerda Kroom

    Index Scriptorium Estoniae

    Jerome, Jerome K., 1859-1927

    1997-01-01

    Järjejutt. Lõpp: 26. juuni 1997. Sisu : Onu Podger töötamas; Joostes rongile; Kaks tüdrukut sisseoste tegemas; Tandem; Mees, kes ei uskunud õnne; Hajameelne mees; Telefoni esimesed sammud; Üks hea nõuanne; Vestlussõnastikud; Kas parandada või sõita?

  3. Kes joonistab uue kunstilaine kaardi? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2008-01-01

    Anders Härmi ja Hanno Soansi kureeritud näitusest "Uus laine. 21. sajandi eesti kunstnikud" Tallinna Kunstihoones ja Kunstihoone galeriis ning Non Grata kollektiivnäitusest "Uus laine. 20. sajandi kunst" Kultuuritehases Polymer

  4. Uus teater tuleb Aasiast / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    2007-01-01

    Soulius toimunud Aasia lasteteatrite festivalist "AssiFE 2007". Mõningatest lavastustest: Tõkyõ teater Kakashiza "Saabastega kass", Sadari teatri "Kui ta kell seisma jäi", Tuida teatri "Haruki lugu", Souli Joyful Theatre'i vendade Grimmide lugu konn-printsist, Shiny Shoes Theatre'i "Maagiline hõljuv laud", Ulgul Gwa Ulgul "Laul lameda näoga Kong-List"

  5. Inimene ja tema raamat / Katrin Kaugver

    Index Scriptorium Estoniae

    Kaugver, Katrin, 1950-

    2008-01-01

    Rets. rmt.: Omanikumärgid vanaraamatus : artiklite kogumik = Ownership marks in old books : collection of articles = Владельческий знак на старинной книге : сборник статей / Eesti Rahvusraamatukogu ; koostaja ja toimetaja Larissa Petina. Tallinn : Eesti Rahvusraamatukogu, 2008

  6. Pidulikult Kaiu vallast / Katrin Helend-Aaviku

    Index Scriptorium Estoniae

    Helend-Aaviku, Katrin

    2009-01-01

    20. veebruaril Kuimetsa rahvamajas pidulikul Eesti Vabariigi 91. aastapäevale pühendatud austamis- ja õnnitlemisõhtul jagati tänu Kaiu valla aasta tegijatele tänukirjade, preemiate ja aunimetustega. Elutöö preemia pälvis Elju Praats, aasta kultuuriedendajaks tunnistai Siiri Sisask, preemia "Kaunis kodu 2008" sai Kaari Küün

  7. Metsaserva funktsionalistlik saunamaja / Jaan Port, Katrin Kaevats

    Index Scriptorium Estoniae

    Port, Jaan

    2006-01-01

    Autorid tutvustavad 2006. a. valminud Pintsonite perekonna saunsuvilat Lohusalus. Projekteerimisest, ruumiprogrammist, materjalidest. Ill.: joon.: I ja II korruse plaan, 4 vaadet, 6 värv. fotot: 3 välis- ja 3 sisevaadet

  8. Euroopa Liidu IT-agentuur / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2015-01-01

    Arhitektuurivõistluse eesmärk oli leida Euroopa Liidu IT-agentuuri peahoone rajamiseks Vesilennuki tänavale Tallinnas parim arhitektuuriline lahendus. Esitati 15 ideekavandit, millest kvalfitseerusid 14. Esimese koha sai töö märgusõnaga "Turing" (autorid: Jaan Kuusemets, Üllar Ambos, Pille Noole, Ioannis Lykouras, Erko Luhaaru, DAGOpen ja LÜNK Arhitektid). Teisele kohale tuli töö märgusõnaga "Platoo" (autor Karli Luik, AB Kontekst). Kolmandale kohale tuli töö märgusõnaga "Bastion" (autorid: Ralf Lõoke, Maarja Kask, Martin McLean, Salto AB).

  9. Traditsioonist ja uuendusest korea modernkunstis / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2005-01-01

    Souli galeriides ja muuseumides valitseb eeldatud kõrgtehnoloogilise kunsti asemel maalikunst. Pikemalt naiskunstnik Wook-kyung Choi (1940-1985) ja Jong-gu Lee näitustest ning soo- ja naisuuringute kongressist "Women's World 2005"

  10. USA suursaadikuga Tallinna lahel / Katrin Kruss

    Index Scriptorium Estoniae

    Kruss, Katrin

    2007-01-01

    USA suursaadik Stanley Davis Phillips oma haridusteest, perekonnast, armastusest mere vastu, panusest isa Earl Phillipsi mööbliäri laiendamisse, golfiharrastusest, suursaadikute ettevalmistusest USA-s, suursaadiku residentsist Pirital ning uue saatkonnahoone otsingutest Tallinnas. Lisa: Stanley Davis Phillips

  11. Vene teatri mitu palet / Katrin Talts

    Index Scriptorium Estoniae

    Talts, Katrin

    2003-01-01

    27. märtsist 14. aprillini toimus Sankt-Peterburgis iga-aastane teatrifestival "Kuldne mask". Festivali parimaks lavastuseks tunnistati L. Petrushevskaja "Moskva koor" I. Konjajevi lavastuses, lavastajapreemia pälvis K. Ginkas lavastusega "Daam koerakesega"

  12. Vali õige elukutse tundes iseennast / Katrin Kaurit

    Index Scriptorium Estoniae

    Kaurit, Katrin

    2002-01-01

    Kutsevalik ja õigete eesmärkide saavutamine eeldab oma võimete, tugevuste ja arendamist vajavate külgede analüüsimist. Abivahendiks sel puhul on DiSC (Personal Profile System) analüüsimetoodika, mille kaudu selgitatakse välja inimese peamised käitumisavaldused ja arendamist vajavad küljed

  13. Inglise keele õppekomplekt lastele / Katrin Tariq

    Index Scriptorium Estoniae

    Tariq, Katrin

    2001-01-01

    4-10-aastaste laste inglise keele õppekomplekti kuuluvad : piltsõnastik, töövihik, sõnakaardid, plakatid, lauamäng, mänguasjad. Rets. : Müürsepp, Mare. My home, family and friends. - Tallinn : TEA Kirjastus, 2001

  14. Lojaalsed kliendid ja suhete loomine / Katrin Aedma

    Index Scriptorium Estoniae

    Aedma, Katrin

    2007-01-01

    Teenindust käsitlevate raamatute tutvustus. Seth Godini "Nõusolekuturundus: kuidas muuta võõraid sõpradeks ja sõpru klientideks", Kaj Storbacka ja Jarmo R. Lehtineni "Klientsuse reeglid või tants klientide pilli järgi" ja Frederick F. Reichheldi "Lojaalsuse reeglid. Kuidas edukad juhid loovad kestvaid töö- ja kliendisuhteid". Lisad: Eksimused ja surmapatud teeninduses!; Sellest, mida sa tead, pole kasu, kui sa seda ei kasuta!

  15. Uurimist toimetavad Wolfe ja Goodwin / Katrin Mõttus

    Index Scriptorium Estoniae

    Mõttus, Katrin

    2003-01-01

    Sari filme - Rex Stout'i detektiivromaanide ekraniseeringud, kus peategelaseks eradetektiiv Nero Wolfe (Maury Chaykin) koos oma noore abilise Archie Goodwiniga (Timothy Hutton) : Ameerika Ühendriigid 2001-2002

  16. Hea teater lastele ja noortele / Katrin Ruus

    Index Scriptorium Estoniae

    Ruus, Katrin

    2006-01-01

    22.-27. maini Tallinnas, Tartus, Pärnus, Narvas toimunud laste- ja noortetatrite festivalist "Draamake 2006". Nimetatud auhinnasaajad : lastelavastuse auhinna sai Vanemuise "Suur kuri hunt" (lavastaja Taago Tubin), noorsooteatri auhind määrati Vene Teatri lavastusele "Veerevad kivid ei sammaldu" (lavastaja Nikita Grinshpun), näitlejaauhinnaga pärjati Marika Vaarikut osatäitmise eest VAT Teatri lavastuses "Klammi sõda", publikupuudutuse auhinna sai ZUGA ühendatud tantsijate "ZUGA lastekas" ja sõnajõuauhind läks NO99 teatri lavastusele "Kaks päikest" (lavastaja Andres Noormets)

  17. Plaadid / Katrin Malt, Virko Pirrus, Mart Kalvet

    Index Scriptorium Estoniae

    Malt, Katrin

    2008-01-01

    Uutest heliplaatidest Atrocity "Werk 80 II", Benighted "Icon", Brain Drill "Apocalyptic Feasting", BrainStorm "Downburst", Diablo Swing Orchestra "The Butcher's Ballroom", Floodstain "Dreams Make Monters", Foxy Shazam "Introducting Foxy Shazam"

  18. Kaameraga taldrikusse ja kaugemale / Katrin Press

    Index Scriptorium Estoniae

    Press, Katrin

    2016-01-01

    Taani väikelinnas Vejles 2015. aasta sügisel toimunud rahvusvahelisest toidufotofestivalist, mis ühendas fotokonkursi, seminarid, töötoad, näitused ja võimaluse kolleegide seltsis aega veeta ning omavahel tuttavaks saada

  19. Viisakus ja selle tajumine tekstiliigiti / Katrin Rikberg

    Index Scriptorium Estoniae

    Rikberg, Katrin

    2009-01-01

    Artikkel tutvustab keelesuhtluse viisakuse kultuuriomaseid mõisteid ja nende seoseid asjakohasusega ning keskendub ametlikule viisakusele ja vestluskäitumisele. Küsimustiku abil läbi viidud taju-uuringust, mille eesmärk oli võrrelda tekstide vastuvõtu erinevaid külgi, et saada teada, mida ja miks peetakse eesti kultuuriruumis viisakaks ja asjakohaseks

  20. Tänavast. Sotsiaalselt / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2010-01-01

    22.-23. septembril 2010 toimunud Eesti Kunstiakadeemia 7. urbanistika ja linnamaastiku päevade 2. osast, rahvusvahelisest konverentsist "Sotsiaalne tänav". Peaesinejad: Lars Gemzøe (Taani), Dago Antov, Sabine Knierbein (Austria), Zane Bērziņa (Läti/Saksamaa). Lisaprogrammis näidati arhitektuuriüliõpilaste poolt rahvusvahelise workshop'i CinemArchitecture raames tehtud linnateemalisi lühifilme

  1. Naised, kes teevad suurt raha / Katrin Kapara

    Index Scriptorium Estoniae

    Kapara, Katrin

    2008-01-01

    Maailma rikkaimate inimeste edetabelit koostava ajakirja Forbes nimestikus oli tänavu 99 naist. Liliane Bettencourt - kosmeetikaimpeeriumi LþOreal pärija, Zhang Xin - firma SOHO China omanik, Cristina Green - jaekaubanduskettide omanik, Jelena Baturina - Vene ärinaine, Meg Whitman - eBay käivitaja, Oprah Winfrey - Ameerika telesaatejuht

  2. Gaseous Kr-83m generator for KATRIN

    Czech Academy of Sciences Publication Activity Database

    Sentkerestiová, Jana; Dragoun, Otokar; Lebeda, Ondřej; Ryšavý, Miloš; Sturm, M.; Vénos, Drahoslav

    2018-01-01

    Roč. 13, č. 4 (2018), č. článku P04018. ISSN 1748-0221 R&D Projects: GA MŠk LTT18021; GA MŠk LM2015056 Institutional support: RVO:61389005 Keywords : detector alignment and calibration methods * instrument optimisation * spectrometers Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders OBOR OECD: Nuclear physics Impact factor: 1.220, year: 2016

  3. Globaliseerumine ja uued piirid / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1999-01-01

    Viinis jaanuaris toimunud konverentsist "Translocation ئ (new) media/art", millega kaasnes meediakunsti näitus Viinis General Foundationi ruumides. Kaasaegse kunsti ajakirjade "Springerin" (Viin), "Detail" (Praha) ja "Magazin Sztuki" (Gdansk) pikem koostööprojekt translocation keskendub küsimusele, kuidas toimib uus meedia (kunst) "uues Euroopas". Eestit puudutava ettekandega esines K. Kivimaa.

  4. [Mati Erelt. Estonian Language] / Katrin Hiietamm

    Index Scriptorium Estoniae

    Hiietamm, Katrin

    2004-01-01

    Arvustus: Estonian language / [Estonian Academy of Sciences] ; edited by Mati Erelt.Tallinn : Teaduste Akadeemia Kirjastus, 2003. 412, [1] lk. : ill., kaart. (Linguistica Uralica. Supplementary series, 0868-4731 ; vol. 1)

  5. President viidi erilennukiga lennukikandjat uudistama / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    President Toomas Hendrik Ilves lendas ameeriklaste organiseeritud lennuga Sitsiiliasse, et sealt sõita erilennuki pardal USA lennukikandjale USS Enterprise. Koos presidendiga käisid lennukikandjat uurimas Riigikogu esimees Ene Ergma ja Riigikogu liige Mati Raidma

  6. Linn - sajandi suur armastus / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2001-01-01

    Tate Modern'is avatud näitusest "Sajandi linn : kunst ja kultuur modernses metropolis". Pariisi, Viini, Moskva, Lagose, Rio de Janeiro, Tokyo, New Yorgi, Londoni ja Bombay väljapanekutest. Järgneb 20. apr. 2002, lk. 8

  7. Valgussähvatused saalipimedusest / Katrin Rajasaare

    Index Scriptorium Estoniae

    Rajasaare, Katrin

    2002-01-01

    6. Pimedate Ööde Festivali filmidest : "Puur" ("La Cage"), režissöör Alain Raoust : Prantsusmaa 2002, "Kuuvalgel" ("Kuutamolla"), režissöör Aku Louhimies : Soome 2001, "Kaunis Martha" ("Bella Martha"), režissöör Sandra Nettelbeck : Saksamaa 2001

  8. Mis isiklik? Mis poliitiline? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2010-01-01

    Saksa kunstniku Hannah Höchi näitus "Isiklik on poliitiline. Hannah Höch ja tema kunsti tõlgendus" Tallinna Kunstihoones 17. oktoobrini 2010, kuraator Reet Varblane. Ka näitusel eksponeeritud Martha Rosleri (USA), Guerrilla Girlsi (USA), Anna-Stina Treumundi (Eesti) töödest

  9. Kes joonistab uue kunstilaine kaardi? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2007-01-01

    Eesti noorema kunsti näitus "Uus laine. 21. sajandi eesti kunstnikud" (kuraatorid Anders Härm, Hanno Soans) Tallinna Kunstihoones ja Kunstihoone galeriis. Non Grata kollektiivnäitus "Uus laine. 20. sajandi kunst" Kultuuritehases Polymer

  10. Aspects of vibrio parahaemolyticus(SAK) in fish preservation by irradiation 1. The presence of vibrio parahaemolyticus(SAK) in coastal areas of Sumatra and Java

    International Nuclear Information System (INIS)

    Suhadi, F.

    1984-01-01

    A study was carried out on the presence of vibrio parahaemolyticus in samples of sediment and seafoods originating from the eastern coast of Sumatra and the north coastal areas of Java. In a total of 2.434 samples of sediment and seafoods, 79 (3,3%) were found to contain vibrio parahaemolyticus. Among the 467 sediment samples, 1.650 fish, 133 shellfish, 123 shrimps, and 61 crab samples, 22 (4.7%), 41 (2.5%), 12 (9.0%), 2 (1,6%) and 2 (3.3%) were positive for vibrio parahaemolyticus, respectively. Based on the sampling areas, the high incidence of vibrio parahaemolyticus was found in samples collected from Riau (5.4%), while the samples from East Java was only about 0.4%. The contamination level of vibrio parahaemolyticus in samples collected from coastal areas of Sumatra and Java is relatively lower compared with the data obtained from some other coastal areas in the United States and Japan. (author)

  11. Kirjandus- ja kultuuritegelased Pärnu Alevi kalmistul / Gerda Kuum

    Index Scriptorium Estoniae

    Kuum, Gerda

    2007-01-01

    Jutukirjanik Suve Jaan, kodanikunimega Sommer Johann Friedrich (1777-1851); baltisaksa kirjamees ja pastor Johann Heinrich Rosenplänter (1782-1846); kirjamees ja köster Caspar Franz Lorenzsonn (1811-1880); köster Heinrich Gottlieb Lorenzsonn (1803-1847); trükkal ja kirjastaja Friedrich Wilhelm Bonn (1812-1881); linnapead Oskar Alexander Brackmann (1841-1927) ja Jaan Leesment (1870-1941)

  12. Kelder. Gerda Taljaard. Kaapstad: Tafelberg, 2012. 224 pp. ISBN ...

    African Journals Online (AJOL)

    There are. Benjamin's girlfriends—Elzette, the evil blonde skinny lawyer, and Martine, the goth with porcelain skin who plays jazz saxophone in her soundproof bathroom whilst standing on the toilet seat. One of Esmeralda's boyfriends is a butcher with massive sideburns. Another boyfriend is a professional big game hunter,.

  13. Kotler : edukate firmade juhid ei ole karismaatilised / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Ilmunud ka: Delovõje Vedomosti 6. juuni lk. 8. Turundusguru Philip Kotler rääkis Tallinnas konverentsil uutest müügi- ja turundusstrateegiatest. Vt. samas: Sirje Rank. Kotler tõstis esile turunduse väärtuse

  14. Tavaline turundus hääbub / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Tallinnas esinenud Philip Kotler ennustab, et traditsiooniline turundus on asendumas turundusega, mis eelistab suust suhu marketingi ja kuulujututurundust. Vt. samas: USA-s on kuulujututurundusest saanud elukutse; Kuulujututurunduseks sobivad tooted

  15. The model of Internet-based marketing communication / Katrin Kull

    Index Scriptorium Estoniae

    Kull, Katrin

    2004-01-01

    Turunduskommunikatsioon Interneti teel erineb traditsioonilisest turunduskommunikatsioonist, võimaldades sõnumite ja tagasiside liikumise protsessi kahesuunalisust ning muutes seega kogu turunduskommunikatsiooni õppimis-(või tundmaõppimis-)protsessiks. Skeemid. Tabelid

  16. Kes kardab poeete? / Giuseppe Provenzano ; tõlk. Katrin Tombak

    Index Scriptorium Estoniae

    Provenzano, Giuseppe

    2008-01-01

    Tallinna Harjumäele rajatavast Vabaduse monumendist, ummiku äärele jõudnud avalikust diskussioonist, monumendi tähendusest. Õnnestunud monument peab esmajoones puudutama meie hinge ja tal ei tohiks puududa ilu

  17. Alkoholitööstus : [2003 Eestis] / Katrin Karolin

    Index Scriptorium Estoniae

    Karolin, Katrin

    2004-01-01

    Ilmunud ka: Agriculture and rural development : overview 2003/2004. - Tallinn, 2004, lk. 104-118. Kangete alkohoolsete jookide tootmine suurenes 2003. a. Statistikaameti andmeil 16,4%, õlut toodeti 2003. a. 1% rohkem kui 2002. a. Tabelid. Diagrammid

  18. Prantsuse maastikuarhitektid Berliinist = French Landscape Architects from Berlin / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2003-01-01

    Berliinis töötavad prantsuse maastikuarhitektid Veronique Faucheur, Marc Pouzol ja Laurent Dugua büroost le balto kujundavad Tallinnasse "Heliose" kino hoovi valgusaia. Valminud on projekti I etapp, aed valmib 2004. a. kevadeks. Arhitektide loomingust (projekt "Ajutised Aiad" ja Kunst-Werke aed Berliinis, Palais de Tokyo aed Pariisis, Padula kloostri aed Itaalias)

  19. Eesti film 101. Organiseerumine versus loomingulisus? / Katrin Maimik

    Index Scriptorium Estoniae

    Maimik, Katrin, 1982-

    2012-01-01

    Tallinnas Maarjamäe lossis 7. juunil toimunud konverentsist "Eesti film 101, filmitööstuse tulevikuvisioonid" ja sellelel järgnenud ümarlauast teemal "Eesti filmivaldkonna organisatoorne kultuur"

  20. Lusikas nomaadidele / Riho Tiivel ; interv. Inna-Katrin Hein

    Index Scriptorium Estoniae

    Tiivel, Riho

    2005-01-01

    Eesti Kunstiakadeemia tootedisaini eriala üliõpilane Riho Tiivel võitis Itaalias toimunud disainikonkursi ReAL 13 "Eating Anywhere" peapreemia oma alumiiniumist lusikaga "Spoon Container". Riho Tiivel on lõpetanud Tartu Kunstikooli mööblirestaureerijana

  1. Projekti Min-E-Max kohtumine Saksamaal / Katrin Arge

    Index Scriptorium Estoniae

    Arge, Katrin

    2005-01-01

    Oktoobri keskel toimus Lõuna-Saksamaa väikelinnas Oberderdingenis Hispaania, Portugali, Ungari, Leedu, Eesti ja Saksamaa õpetajate kohtumine seoses Euroopa Liidu poolt rahastatava Comenius1 projektiga Min-E-Max (minimum energy input maximum output)

  2. ISEA näitused Tallinnas / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2004-01-01

    ISEA kunstiprojekte Tallinna eri näitusepaikades: Kunsthoone ja lähikond (M. Fairskye, N. Urboniene, G. Urbonas jt.), Tarbekunsti- ja disainimuuseum (K. Dobson, A. Rewakowicz), Rotermanni soolaladu (eestlaste duo I.D, L. Petrovich, S. Rigon jt.), teised kohad. Eestlasi esindab ISEA-l I. Kivi ja D. Kase (I.D.) installatsioon ning U. Puhkani ja L. Kiluski performance. Kunstihoone galeriis eesti meediakunsti retrospektiiv

  3. An angular-selective electron source for the KATRIN experiment

    Czech Academy of Sciences Publication Activity Database

    Beck, M.; Bokeloh, K.; Hein, H.; Bauer, S.; Baumeister, H.; Bonn, J.; Ortjohann, H.W.; Ostrick, B.; Rosendahl, S.; Streubel, S.; Valerius, K.; Zbořil, Miroslav; Weinheimer, C.

    2014-01-01

    Roč. 9, č. 11 (2014), č. článku 11020. ISSN 1748-0221 R&D Projects: GA ČR(CZ) GAP203/12/1896 Institutional support: RVO:61389005 Keywords : spectrometers * photoemission * detector alignment and calibration methods Subject RIV: BF - Elementary Particles and High Energy Physics OBOR OECD: Particles and field physics Impact factor: 1.399, year: 2014

  4. Kodumaiselt rahvusvaheline filmifestival. 6. Sleepwalkers' tudengifilmide festival / Katrin Rajasaare

    Index Scriptorium Estoniae

    Rajasaare, Katrin

    2006-01-01

    IX Pimedate Ööde Filmifestivali alafestivali Sleepwalkers' Student Film Festivali tudengifilmidest : eesti filmid ja auhinnatud filmid - peaauhind rootslase Axel Danielsoni "Suvepilved" ("Sommarlek"), eriauhinnad eestlase Ekke Vasli "Nagu ikka", Saksamaa austraallase Jack Rothi "Olli", korealase Chansoo Kimi "Vaudeville"

  5. "Salatoimikud" Indiana Jonesi moodi / Inna-Katrin Hein

    Index Scriptorium Estoniae

    Hein, Inna-Katrin

    2008-01-01

    Steven Spielbergi neljas Indiana Jones'i film Harrison Fordiga nimiosas "Indiana Jones ja kristallpealuu kuningriik" ("Indiana Jones and the Kingdom of the Crystal Skull") : Ameerika Ühendriigid 2008

  6. Mis on see meie oma meediaruum? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1999-01-01

    Meediakunsti festivali 'Interstanding 3' raames toimunud konverents 'Ülalpool piire'. Kuraator Eric Kluitenbergi, peaesineja sotsioloogiaprofessor Saskia Sasseni, bulgaaria kunstniku Luchezar Boyadjievi esinemisest. Eesti ja internet

  7. "Siin me oleme" staarid paljastasid Muhumaal saladusi / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2002-01-01

    Sulev Nõmmiku populaarse komöödiafilmi "Siin me oleme" (Eesti Telefilm 1978) osatäitjad Lia Laats, Kadri Jäätma, Väino Puura ja Imre Sooäär meenutasid Pädaste mõisas kokku tulles filmimise rõõme ja muresid

  8. Sundosaõigus ja tagasivõitmine / Katrin Sepp

    Index Scriptorium Estoniae

    Sepp, Katrin

    2017-01-01

    Sundosa mõistest ja sundosa saajatest. Sihtasutusse paigutatud vara arvesse võtmisest sundosa suuruse määramisel, sundosaõigusest tulenevatest nõudetest sihtasutuse vastu ja rahvusvahelistest pärimisasjadest

  9. First transmission of electrons and ions through the KATRIN beamline

    Czech Academy of Sciences Publication Activity Database

    Arenz, M.; Dragoun, Otokar; Kovalík, Alojz; Lebeda, Ondřej; Ryšavý, Miloš; Sentkerestiová, Jana; Suchopár, Martin; Vénos, Drahoslav

    2018-01-01

    Roč. 13, č. 4 (2018), č. článku P04020. ISSN 1748-0221 R&D Projects: GA MŠk LM2015056; GA MŠk LTT18021 Institutional support: RVO:61389005 Keywords : ion sources * electron beam * detector control systems * beam-line instrumentation * spectrometers Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders OBOR OECD: Nuclear physics Impact factor: 1.220, year: 2016

  10. Vandenõu Läänemerel / Katrin Laur

    Index Scriptorium Estoniae

    Laur, Katrin

    2003-01-01

    Saksamaal esilinastus poliitiline põnevusfilm "Balti torm" ("Baltic Storm"), mis kujutab parvlaev "Estonia" hukku venelaste vandenõu tulemusena. Produtsendid on Jutta Rabe, Kaj Holmberg ja Birgit Stein, režissöör ja üks stsenariste Reuben Leder, peaosades Greta Scacchi ja Jürgen Prochnow. Filmi vaieldavast konteptsioonist ja vastukajadest

  11. Varakambri lahtine värav / Katrin Kaugver

    Index Scriptorium Estoniae

    Kaugver, Katrin, 1950-

    2008-01-01

    Uppsalas toimunud CERL-i (Consortium of European Research Libraries) vanaraamatu seminar "Käsikiri, trükis ja internet", kus TLÜ professor Tiiu Reimo andis ülevaate meie raamatukogude ja arhiivide vanatrükiste kogudest

  12. Rünnak vaatemängu ajastule / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2000-01-01

    Rahvusvaheline videokunsti ja uue meedia festival "Video Positive 2000" Liverpoolis üldteemal "The Other Side of Zero". Kontseptsiooni autor Steven Bode. Pikemalt sotsiaalsetest projektidest Internetis ja Iliyana Nedkova kureeritud näitusest "Spacecraft", kus oli väljas ka Mare Tralla töö "silm-vaatlusõhupall"

  13. Europa Cinemas auhindas Sõpruse kino / Katrin Rajasaare ; interv. Annika Koppel

    Index Scriptorium Estoniae

    Rajasaare, Katrin

    2005-01-01

    Euroopa ja Vahemere regiooni kinopidajaid ühendav organisatsioon Europa Cinemas kuulutas Sõpruse kino aasta parimaks noorsooürituste korraldamise kategoorias. Oma tööst räägib Sõpruse juht, kes käis ka 18. nov. Budapestis auhinda vastu võtmas

  14. Dialoogid kohatusest / Justin Ions ; tõlkinud Katrin Kivimaa

    Index Scriptorium Estoniae

    Ions, Justin

    2009-01-01

    Rahvusvaheline näitus "thisPLACEd" ("Kohatute koht") Tallinna Linnagaleriis 1. märtsini. Kuraatorid Silvina Der-Meguerditchian ja Reet Varblane. Suur osa näitusel osalevatest kunstnikest on armeenia päritolu. Koostöösse on kaasatud Eestiga seotud kunstnikud Olga Jürgenson (elab Londonis) ja Eléonore de Montesquiou

  15. Naised, kes toovad naeratuse näole / Katrin Oja

    Index Scriptorium Estoniae

    Oja, Katrin

    2006-01-01

    Heast teenindusest räägivad Eesti Gaasi juhatuse esimehe assistent, Aasta Sekretär 2005 Tiivi Lind, lounge 8 baaridaam Kadri Kask ja Sampo Panga koolitusspetsialist, Aasta Teenindaja 2006 Aires Rühka. Kommenteerivad nende ülemused - Sampo Panga koolitusosakonna juhataja Külli Meier, Eesti Gaasi juhatuse esimees Aarne Saar ja lounge 8 mänedžer Heinar Õispuu

  16. Corporate reputation : intangible assets, tangible benefits / Katrin Rahu, Evelin Ojamets

    Index Scriptorium Estoniae

    Rahu, Katrin, 1978-

    2004-01-01

    Hill & Knowlton'i Eesti ning Läti büroode poolt tipp- ja keskastme juhtide seas 2004. a. sügisel läbiviidud uuringust korporatiivse imago kohta, mis on osa 1997. a. alustatud rahvusvahelisest uuringuprojektist Corporate Reputation Watch. Tabel. Diagrammid

  17. Kas sa kuuled mind? / Anete Elken, Katrin Kivirand

    Index Scriptorium Estoniae

    Elken, Anete

    2005-01-01

    Organisatsiooni EuroChild AISBL eestvedamisel Brüsselis toimunud noorte ürituse raames "Can you hear me?" arutasid Euroopa Liidu liikmesriikide esindajad noortega seotud probleeme ning kohtusid Euroopa Parlamendi liikmetega

  18. Tulevikuideed pärinevad loodusest / Katrin Kurss

    Index Scriptorium Estoniae

    Kurss, Katrin

    2010-01-01

    KUMU kunstimuuseumi auditooriumis 14. jaanuaril 2010 toimunud Eesti Kulinaaria Instituudi poolt korraldatud I rahvusvaheline Eesti köögi arendamisele pühendatud Food For Future / Tulevikutoidu konverentsist, kus esinesid ettekannetega toidumaailma uuendajad Albert Adriá, Fergus Henderson, Põhjala köögi liikumise üks algataja Claus Meyer ning reklaamibüroo Division loovjuht Rain Pikand

  19. Alkoholi tootmine ja turg : [2002-2004] / Katrin Karolin

    Index Scriptorium Estoniae

    Karolin, Katrin

    2005-01-01

    Ilmunud ka: Agriculture and the development of rural life : overview 2004/2005. - Tallinn, 2005, lk. 45-47. 2004. a. 9 kuu alkoholi jaekäive ulatus 2,2 mld kroonini, mis on 13% suurem kui eelmise aasta samal perioodil. Tabelid: Alkohoolsete jookide tootmine Eestis (9 kuud 2002-2004); Alkoholi tarbimine elanike hinnangute alusel

  20. Laste joonistatud perepiltidel seisavad kõrvutud vanemad / Katrin Johanson

    Index Scriptorium Estoniae

    Johanson, Katrin

    2008-01-01

    Psühholoog Toivo Niiberg põhjustest, miks tekitab Karksi-Nuia noorteteatri dokumentaalne lavalugu "Kallid vanemad" äratundmist. Loo seadis Viljandimaa põhikooliõpilaste kirjanditest kokku teatri juht ja lavastaja Silvia Soro

  1. 100 + 100 paremat raamatut / Katrin Männi

    Index Scriptorium Estoniae

    Männi, Katrin

    2002-01-01

    Eesti Raamatu Aasta 1935-1936: Paremate eesti raamatute soovitusnimestik; "Ideaalraamatukogu". Eesti Raamatu Aasta 2000-2001: 100 Eesti elu enim mõjutanud raamatut ; "Kuldraamatukogu"; Õpetatud Nõukogu valik

  2. "Tallinna vabastamist tuleks tähistada puhkpilliorkestriga!" / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Esmakordselt tähistati vastupanuvõitluse päeva, meenutades Eesti seadusliku valitsuse kukutamist 1944. aasta 22. septembril. Tallinna vabastamise päeva tähistajad Tõnismäel ja sõjaväekalmistul. Vt. samas: Gräzin: Hitleri ja Klenski metoodika on samad

  3. Põhja-Euroopa vägevaim kokk / Katrin Kurss

    Index Scriptorium Estoniae

    Kurss, Katrin

    2007-01-01

    Rahvusvahelisest kokkade võistlusest "Global Chef Challenge" ning seal osalenud kokkadest: Tom Victor Gausdal Norrast ; Carina Brydling Rootsist ; Thorsten Schmidt Taanist ; Simon Hulstone Suurbritanniast

  4. Kes kardab punast, kollast ja sinist? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2002-01-01

    Ameerika kunstniku Barnett Newmani (1905-1970) tööde näitus Londonis Tate Modernis 5. jaanuarini 2003. 13. XI avati saksa päritolu ameerika kunstniku Eva Hesse (1936-1970) retrospektiivnäitus, mis sisaldab üle 130 skulptuuri, maali ja joonistuse

  5. Eesti põllumajandusest 1999. aastal / Katrin Noorkõiv

    Index Scriptorium Estoniae

    Noorkõiv, Katrin, 1973-

    2000-01-01

    Põllumajandusministeeriumi ülevaade koostamisel Eesti põllumajandusest aastal 1999 on rakendatud ühtse põllumajandussektori majandusliku arvestuse metoodikat (EAA - Economic accounts for agriculture). Tabelid, diagrammid

  6. Plaadid / Urmas Piht, Katrin Malt, Virko Pirrus...[jt.

    Index Scriptorium Estoniae

    2008-01-01

    Uutest heliplaatidest Destruction "D.E.V.O.L. U.T.I.O.N.", Ihsahn "angL", Neuraxis "The Thin Line Between", Kamphar "Heimgang", Satyricon """My Skin Is Cold", Venom "Hell", Bloodbath "The Waken Carnage"

  7. Kõrvemaa Karikas 2011 / Katrin Liiv, Õnne Halliko

    Index Scriptorium Estoniae

    Liiv, Katrin

    2011-01-01

    MTÜ Estonian Endurance Riding poolt Kõrvemaa Matka- ja Suusakeskuses korraldatud kestvusratsutamise võistlusest Kõrvemaa Karikas 2011, kus selgitati ka poniklassi Eesti meistrid kestvusratsutamises

  8. Klaaspärlimäng peletab klassikahirmu / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    2003-01-01

    Eri stiile-ajastuid ühendavast Peeter Vähi kujandatud muusikafestivalist "Klaaspärlimäng" 22. juulist-24. augustini. Kontsertidest Pärnu kontserdimajas: gamelaniansambli Gamelan Son of Lion kontserdist 22. juulil, Vardo Rumesseni kontserdist ja CD esitlusest 28. juulil, tütarlastekoori "Ellerhein" kontserdist 30. juulil

  9. Commissioning of the vacuum system of the KATRIN Main Spectrometer

    Czech Academy of Sciences Publication Activity Database

    Arenz, M.; Dragoun, Otokar; Kovalík, Alojz; Lebeda, Ondřej; Ryšavý, Miloš; Sentkerestiová, Jana; Slezák, Martin; Špalek, Antonín; Vénos, Drahoslav; Zbořil, Miroslav

    2016-01-01

    Roč. 11, APR (2016), P04011 ISSN 1748-0221 R&D Projects: GA ČR(CZ) GAP203/12/1896; GA MŠk LG14004 Institutional support: RVO:61389005 Keywords : gas systems and purification * neutriono detectors * spectrometers Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.220, year: 2016

  10. Väikeste naiste oma ruum / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1998-01-01

    Näitus "(Meta)Dialoog" A. H. Tammsaare muuseumis ja Kastellaanimaja galeriis. Kuraator Reet Varblane. Osalejad : Kiwa, Mari Laanemets, Helen ? (Helena) Lehtmets, Ele Praks, Piia Ruber, Liina Siib, Helena Palm, Kadi Soosalu, Killu Sukmit. Kõik tööd näitusel käsitlevad naist.

  11. Kuidas NOMA maailma muudab / Taani Toiduorganisatsioon ; refereerinud Katrin Press

    Index Scriptorium Estoniae

    2012-01-01

    Uue Põhjala köögi kontseptsiooni välja töötanud Claus Meyeri ja Rene Redzepi restorani Noma, mis on kolmel korral maailma parimaks restoraniks tunnistatud, juurde loodud eksperimentaalgastronoomia laborist Nordic Food Labist, kus Põhjala maitseid kaardistab ameeriklane Lars Williams

  12. Venelastele kulub kümnendik rahast / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Venekeelse meedia osakaal eelmise aasta meediareklaamiturul oli vaid umbes 170 miljonit ehk 12,5% koguturust. Vt. samas: Mitte-eestlaste reklaamides on otstarbekas kombineerida võimalikult erinevaid kanaleid. Kommenteerivad Kristjan Seema ja Toomas Pärna

  13. Miteelustamise otsus Eestis / Eva Antsov, Saara Sadrak, Katrin Elmet ...[jt.

    Index Scriptorium Estoniae

    Antsov, Eva

    2017-01-01

    Ravitahtest ja mitteelustamise otsuse (ingl do not resuscitate, do not attempt resuscitation order) ajaloost, praktikast Eestis ja näiteid teistest riikidest ning arutletud mitteelustamise eetilise tagamaa, sotsiaalse tähenduse ja Eesti õigusloome puudujääkide üle ravipiirangute kontekstis

  14. Tere tulemast, Schengen : lillad õhupallid ja rokkivad poliitikud! / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Tallinna sadamas tähistati Eesti astumist Schengeni õigusruumi. Kohal viibisid ka president Toomas Hendrik Ilves, Portugali peaminister Jose Socrates, Euroopa Komisjoni president Jose Manuel Barroso ja komisjoni volinik Franco Frattini

  15. Kunst ja feminism EKMi [Eesti Kunsti Maailm] kontekstis / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1998-01-01

    Uurimistööga seoses küsitles K. Kivimaa kahtekümmet kolme eesti kunstnikku (nimed toodud), uurides nende suhet kaasaegse kunstiga ja suhtumist eesti kaasaegse kunsti feministlikesse ja soolistesse tendentsidesse. Kas kunstnikul on sugu? Suhtumine feminismi ja feministlikku kunsti. Feministist kunstnik, kunstnikust feminist. Soov osaleda feministlikel näitustel. Feministlik kriitika. Feministlike ja sookriitiliste teemadega tegeleva kunsti ja kunstnike endi koht laiemas kunstikontekstis. Eeskuju ja genereerija tähtsus. Järgneb 6. nov. lk. 10 ja 20. nov. lk. 12-13, 1998

  16. Plaadid / Katrin Malt, Mart Virkus, Virko Pirrus...[jt.

    Index Scriptorium Estoniae

    2008-01-01

    Uutest heliplaatidest Avantasia "The Scarecrow", Crematory "Pray", Black Comedy "Instigator", Behexen "My Soul For His Glory", Draconian "Turning Season Within", Earth "The Bees Made Honey in the Lion's Skull", Devotus Regnum "Centuries Conversely"

  17. Millest sõltub teatrikeele mõistetavus ? / Katrin Ruus

    Index Scriptorium Estoniae

    Ruus, Katrin

    2006-01-01

    2.-8. aug. Fääri saartel T̤rshavnis toimunud IV Põhjamaade amatöörteatrite festivalist (North European Amateur Theatre Alliance). Pikemalt Fääri harrastustrupi lavastusest "H̤rpurima" (lav. Hans T̤rgard), rootsi lavastaja ja draamakirjaniku "Õnnelikult igavesti", Islandi trupi "Memento mori" (lav. Augusta Skټlad̤ttir). Eestit esindas festivalil Tarmo Tagametsa lavastus "Hing?" Võru Teatriateljee esituses

  18. Saared meis ja meie ümber / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    1998-01-01

    Chaplini kunstikeskuses 17. detsembrini avatud fotonäitusest 'Põhjala saared', kus oma töid eksponeerisid: Absalon Hansen - Fääri saartest, Göte Ask - Gotlandist, Andy Horner - Ahvenamaalt, ning Tartu kunstikooli fotoeriala tudengid oma pilte Naissaarest, Piirissaarest, Abrukast, Manijast, Vormsist ja Vilsandist.

  19. Ons surm väljatõugatute paradiis? / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2004-01-01

    Mängufilm "Koletis" ("Monster") : režissöör Patty Jenkins : Ameerika Ühendriigid 2003. Filmi prototüübi, sarmõrvar Aileen Wuornosi (1956-2002) vägivaldsuse kujunemise põhjustest, naistele suunatud vägivallast ka Eestis

  20. Eestvedamine / Jüri Krusealle, Katrin Kreegimäe

    Index Scriptorium Estoniae

    Krusealle, Jüri

    2002-01-01

    Bibliogr. lk. 80. - Kokkuvõte ingl. k. lk. 80. Eesti juhtidel on veel palju õppida eestvedamise olemusest, et olla just selline liider, keda organisatsioonile tänapäeva kiiresti muutuvas maailmas vaja. Tabel liidrite tüüpidest

  1. Loeme veel! / Kristi Pärn-Valdoja, Katrin Pauts

    Index Scriptorium Estoniae

    Pärn-Valdoja, Kristi, 1970-

    2006-01-01

    TNS Emor väärtushinnangute uuringu RISC 2006 andmetel on igapäevane lugemisharjumus 29 protsendil Eesti naistest ja 20 protsendil meestest. Tallinna abilinnapea Kaia Jäppinen, investeerimistoodete turundusjuht Piret Reinson, KUMU direktor Sirje Helme, laulja Maarja-Liis Ilus ning näitleja Riina Maide kõige enam nende elu ja tegevust mõjutanud raamatutest. Lisa: Millised on Hollywoodi naiste lemmikraamatud?

  2. Taarausuliste haigla jääb personalita / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2001-01-01

    Taarausuliste liider Rootsi eestlane Addold Mossin soovib Valgamaale rajada erihaigla, kus arstide kõrval hakkavad inimesi ravima ka nõiad. Professor Aili Paju ei kavatse taarausuliste haiglasse tööle minna

  3. Feministlikul mõttel on koht meie kunstiajalugudes : intervjuu kunstiakadeemia dotsendi Katrin Kivimaaga : feminism / Katrin Kivimaa ; interv. Reet Varblane

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2004-01-01

    Feministlikust kunstist ja kunstimõttest Eestis, feminismi mõistmisest Ungaris ja Inglismaal, muutustest eesti ühiskonnas võrdõiguslikkuse mõttes, uue feministliku kunstimõtte kogumiku ilmumise vajalikkusest jm.

  4. Flora Livonica : kalender 2008 = Calendar 2008 / Tallinna Ülikool, Akadeemiline Raamatukogu ; tekst Katrin Kaugver ; tõlkinud Kristi Rae, Katrin Kaugver

    Index Scriptorium Estoniae

    2007-01-01

    Kalendri illustratsioonid pärinevad raamatust: Drümpelmann, Ernst Wilhelm. Flora Livonica, oder: Abbildung und Beschreibung der in Livland wildwachsenden Pflanzen, bearbeitet in Verbindung mit einigen Freunden der vaterländischen Naturkunde. Riga, 1810

  5. Postkommunistlik kultuur ja kunst - kas müürid on lõhutud ? / Katrin Käärik ; foto: Katrin Käärik

    Index Scriptorium Estoniae

    Käärik, Katrin, 1950-

    1999-01-01

    Stockholmi Moodsa Kunsti Muuseumis avati 16. oktoobril 1999 rahvusvaheline näitus "Pärast müüri : kunst ja kultuur postkommunistlikus Euroopas", näitusest võtavad osa Jaan Toomik, Liina Siib, Kai Kaljo ja Inessa Josing

  6. 20 aastat tagasi talletatud Siberi elulugudest valmib telesari / Gerda Kulli-Kordemets ; intervjueerinud Erika Klaats

    Index Scriptorium Estoniae

    Kulli-Kordemets, Gerda

    2010-01-01

    Uuest telesarjast tööpealkirjaga "Siber", mis räägib 14. 06. 1941 Virumaalt küüditatud politseinike lastest, kes viidi Tomski oblastisse Vasjuganje piirkonda. Stsenarist Merle Karusoo, kunstnik Eugen Tamberg, tegevprodutsent Mart Saar. Dokumentaalfilm tööpealkirjaga "Memento" tutvustab telesarja tegelaste prototüüpe ja reaalseid tegevuskohti. ETV võttegrupi käigust Tomski oblastisse

  7. Vaatamise viisid ja ühisväli = Perspectives and common field : [juhtkiri] / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2016-01-01

    Peatoimetaja mõtteid erinevatest kultuuridest, nende segunemisest ja sellest kuidas inimesed läbi aegade eri kohtades on elanud ning kuidas seda on tõlgentatud. Juhtkirjas on ka ajakirja sisu lühitutvustus

  8. Raha lastele! Ühe kodanikualgatuse lugu / Katrin Väljataga

    Index Scriptorium Estoniae

    Väljataga, Katrin

    2011-01-01

    Üks Tallinnas elav ema nõudis sotsiaalvõrgustikus Facebook Tallinna TV raha andmist lasteaedadele, kuna oli linna 2011. aasta esimese lisaeelarve investeeringute tabelit vaadates avastanud, et Tallinna TV saab 2011. aastal rohkem raha kui Tallinna lasteaiad (vastavalt 1,9 miljonit ja 127 823 eurot). Lasteaiade olukorrast. MTÜ Kodaniku Hääl esindajad on kohtunud mitmete ametnikega

  9. Katrin Pudersell kaitses farmaatsiadoktori väitekirja / Ain Raal, Elmar Arak

    Index Scriptorium Estoniae

    Raal, Ain, 1961-

    2006-01-01

    3. mail 2006 kaitses farmaatsiamagister Tartu Ülikooli arstiteaduskonna nõukogu ees doktoriväitekirja "Tropaanalkaloidide ja riboflaviini produktsioon koera-pöörirohu (Hyoscyamus niger L.) põllu- ja koekultuurides

  10. Kolm pilku uuele majale = Three Looks at a New House / Katrin Paadam

    Index Scriptorium Estoniae

    Paadam, Katrin, 1954-

    2005-01-01

    Neljakorruseline siseõuega korterelamu Tallinnas Lillekülas. Projekteerija: QP Arhitektid. Arhitekt Tõnu Laigu. Konstruktor: M.S.I. Grupp. Projekt 2002, valmis 2003. Ill.: I ja II korruse plaan, lõige, 6 värv. välisvaadet. Bibliograafia lk. 44

  11. Maastikuarhitektuuri koolitusest Eesti Kunstiakadeemias = Schooling in Landscape Architecture at the Estonian Academy of Art / Katrin Koov

    Index Scriptorium Estoniae

    Koov, Katrin, 1973-

    2003-01-01

    Maastikukool tegutseb EKA arhitektuuriosakonna juures neljandat hooaega. Seni oli tegemist valikkursusega, 2003/2004. õppeaastast on see lülitatud arhitektuuriüliõpilaste põhiõppesse. Maastikukooli eesmärgist ja plaanidest, ülevaade aastatel 2000-2003 toimunud maastikukoolidest. 6 ill

  12. Koda = Koda / Ülar Mark, Kariina Kristiina Kaufmann, Kadri Tonto ; kommenteerinud Katrin Koov

    Index Scriptorium Estoniae

    Mark, Ülar, 1968-

    2016-01-01

    Minimalistliku vormiga eramu KODA Tallinnas, Järvekalda tee 33. Autorid Ülar Mark, Taavi Jakobson, Hannes Tamjärv, Kalev Ramjalg, Marek Strandberg. Arhitektid Ülar Mark, Kariina Kristiina Kaufmann, Kadri Tonto, Hannes Praks

  13. XI Põhjamaade kunsti ja kirjanduse festival "Les Boréales" / Katrin Talts

    Index Scriptorium Estoniae

    Talts, Katrin

    2002-01-01

    Festival toimub 22.-30. nov. Prantsusmaal Caenis. Kirjanduslikel debattidel tutvustatakse Tõnu Õnnepalu, Jaan Kaplinski, Mati Undi, Eva Koffi ja Arvo Valtoni loomingut. Festivali teemaks on "Territoorium ja identiteet"

  14. Tallinna Pedagoogikaülikooli magistreid 2004 / Katrin Aava, Toomas Liiv, Helle Metslang

    Index Scriptorium Estoniae

    Aava, Katrin, 1963-

    2005-01-01

    Eesti keele, soome keele ja kommunikatsiooni eriala magistritöödest. Ka viis kirjandusteaduslikku tööd: Kerli Linnati "The vision of history of E. L. Doctorow in English and in Estonian: a comarative study of "Ragtime" and "Look Lake" and their translations", Anneli Niitsoo "Postmodern play with power and masculinity in Jeanette Winterson's Novels", Pille Riismaa "Gümnaasiumi kirjandusõpik "Eelmise sajandi eesti kirjandus"", Anneli Kõvamehe "Baltisakslased Jaan Krossi "Kolmandates mägedes", "Keisri hullus" ja Rakvere romaanis"", Jaak Urmeti "Kultuuri eest ja religiooni vastu. Max Laossoni usuvastasest paljastustööst ajakirjas "Ratsionalist" (1932-1933)"

  15. Feministlik poliitika ja institutsioonikriitika / Angela Dimitrakaki ; tõlkinud Katrin Kivimaa

    Index Scriptorium Estoniae

    Dimitrakaki, Angela

    2011-01-01

    Ettekanne sümpoosionil "Common Differences: Issues for Feminist Curating in Post-Socialist Europe" Eesti Kunstiakadeemias 27. mail 2011. Kuratoorse ühisvara idee nõuab kahekordset distantseerumisakti - eemaldumist kapitali huvides töötavatest (kunsti)institutsioonidest ning kunsti ja kunstiajaloo teenistusest

  16. Jõhkrad mängud - meelelahutus või mitte? / Katrin Nigul

    Index Scriptorium Estoniae

    Nigul, Katrin

    2008-01-01

    Austria režissööri Michael Haneke 1997. aastal valminud psühhodraama "Jõhkrad mängud" ("Funny Games") Ameerikas sama lavastaja käe all valminud uusversioon ("Funny Games U.S") : Ameerika Ühendriigid 2007

  17. Müüte tervishoiu rahast ja arstide-õdede palkadest / Katrin Rehemaa

    Index Scriptorium Estoniae

    Rehemaa, Katrin

    2007-01-01

    Ilmunud ka: Põhjarannik, 13. jaan. 2007, lk. 2; Severnoje Poberezhje, 13. jaan. 2007, lk. 2; Oma Saar, 16. jaan. 2007, lk. 4; Koit, 16. jaan. 2007, lk. 6; Võrumaa Teataja, 16. jaan. 2007, lk. 2; Lääne Elu, 16. jaan. 2007, lk. 2; Vali Uudised, 17. jaan. 2007, lk. 2; Vooremaa, 18. jaan. 2007, lk. 2. Eesti Arstide Liidu peasekretär selgitab kriisiolukorraga sündinud müüte, mis on tekkinud tervishoiu rahastamisega seoses

  18. Sotsiaalne kapital ja jätkusuutlik majandusareng / Helje Kaldaru, Katrin Tamm

    Index Scriptorium Estoniae

    Kaldaru, Helje, 1950-

    2003-01-01

    Ülevaade sotsiaalse kapitali mõistest ja peamistest suundumustest selle käsitlemisel, sotsiaalse kapitali mõõtmise võimalustest. Sotsiaalse kapitali analüüs Eestis võrrelduna Euroopa Liidu liikmesmaade, teiste kanditaat- ja siirderiikidega, sotsiaalse kapitali kujunemine maakondade lõikes. Tabelid

  19. Kiirus 2 ehk kunsti võimalustest ajupesu ühiskonnas / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    1998-01-01

    Maanteenäitus 'Kiirus 2'. Kuraator Mari Sobolev. Osalejad loetletud. K. Putki, P. Alliku, J. Zoova, M. Laimre, M. Mäetamme, Sütevaka Andrese, P. Pajose, E. Müürsepa, T. Laamannni töödest. Pikemalt Andrus Joonase tööst 'Artist Kills the Beast' 1997. a. näituselt 'Kõike korraga ja palju'.

  20. Muljeid Stockholmi mööblimessilt (6.-10. veebruarini 2007) / Katrin Kask

    Index Scriptorium Estoniae

    Kask, Katrin

    2007-01-01

    Eesti firmadest osalesid messil Softrend, Wallenium ja Thulema. Messihoone vestibüüli kujundas saksa disainer Konstantin Grcic, tema loomingust. Rootsi disaineri Damian Williamsoni installatsioonist "The Silent Supper"

  1. Aasta jagu filme linastus pealinnas ühe matsuga / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    2001-01-01

    Pimedate Ööde Filmifestivali huvitavamaid filme : Jan Hrebejk'i "Lahus olles me kaotame" (Tšehhi Vabariik 2000), Oliver Hirschbiegeli "Eksperiment" (Saksamaa 2001) ja Bille Augusti "Laul Martinile" (Rootsi - Taani 2001)

  2. "Mida mina ei julge, teeb Homer filmis ära!" / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2007-01-01

    21. juulil on joonisfilmi "Simpsonite film" ("The Simpsons Movie") maailmaesilinastus. Seriaali suur fänn, saatejuht Kristjan Jõekalda sellest, miks talle Simpsonid meeldivad. Lisaks "Marge'i juuksed on inspireeritud Frankenteini pruudist"

  3. Näitleja teeb vahekokkuvõtte ehk Kuidas lavastatakse aega / Katrin Ruus

    Index Scriptorium Estoniae

    Ruus, Katrin

    2006-01-01

    Von Krahli Teatri kolmest lavastusest: "Erki ja Tiina" (lavastaja Mart Kangro, tantsivad Erki Laur ja Tiina Tauraite), "Faust" (J. W. Goethe ainetel tekst ja lavastus Taavi Eelmaa, muusika ja laulud Chalice, osades Jarek Kasar ja Rein Pakk), "Hamletid" (William Shakespeare'i ainetel kontseptsiooni, lavastuse, koreograafia, kujunduse, valguse autor Sasha Pepeljajev, video- ja helikunstnik Taavet Jansen. Esitaja Juhan Ulfsak)

  4. Kolm küsimust Rait Pärgile / Rait Pärg ; interv. Katrin Nielsen

    Index Scriptorium Estoniae

    Pärg, Rait

    2001-01-01

    Skulptor Rait Pärg Pärnu skulptuurikaardi ja selle põhjal skulptuurikontseptsiooni koostamisest (osalevad ka Omar Volmer ja Mark Soosaar), 2.-11. juunini korraldatavatest skulptuuripäevadest "Pärnu - positiivse märgiga linn"

  5. Agar pronkssõduriga võitleja sai kanepisuitsetamise eest trahvi / Katrin Rohtla, Siim Randla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2006-01-01

    Aktiivse pronkssõduri vastasena tuntust kogunud Isamaaliidu liige Kalev Rebane sai Läänemaal Peraküla rannas kanepi suitsetamise eest politseilt 9000 krooni trahvi. Isamaa ja Res Publica Liidu liikmed on teinud ettepaneku noormees erakonnast välja arvata. Lisa: Mille eest koostati protokoll?

  6. Järeltuuril Moravias, Sloveenias ja Ungaris / Krista, Ruth ja Katrin

    Index Scriptorium Estoniae

    Jürisoo, Krista

    2010-01-01

    24.-26. jaanuaril 2010 toimunud Austria ja Kesk-Euroopa turismimessil actb 2010 korraldatud konverentsist Actb Vienna osavõtjatele pakutud võimalusest tutvuda Tšehhi, Ungari või Sloveenia turismisihtkohtadega 3-päevasel õppereisil

  7. Euroopa uue draama festival "A Est" Napolis / Mari Kolle, Katrin Talts

    Index Scriptorium Estoniae

    Kolle, Mari

    2005-01-01

    Festival toimub 9.-11. veebr. Napolis. Eesti näitekirjandusest tõlgiti selleks puhuks itaalia keelde kolm näidendit : J. Tätte "Sild", A. Kivirähki "Eesti matus" ja U. Lennuki "Rongid siin enam ei ..." Sel korral neid avalikult ette ei loeta, kuid nad on kättesaadavad kõigile huvilistele

  8. Tulevikuteatri nimel, nüri järjekindlusega - edasi ! / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    2001-01-01

    2001. a. 20. märts oli esimene aasta, mil ülemaailmsesse organisatsiooni ASSITEJ kuuluvad laste- ja noorteteatrid tähistasid lasteteatrite päeva. Eesti ASSITEJsse (asutatud 1992. a.) kuuluvad VAT Teater, Narva Teater Ilmarine, Jõhvi teatrid Tuuleveski ja Lepatriinu, Tartu Minerva, Tallinna Reel, Viljandi Nukuteater ning rida üksikliikmeid. Eesti keskuse tulevikuplaanidest

  9. Mosaiigitükid vajavad uut moodi kokkupanekut / Martin Klöker ; intervjueerinud Katrin Kaugver

    Index Scriptorium Estoniae

    Klöker, Martin, 1966-

    2012-01-01

    Intervjuu kirjandus- ja kultuuriloolase Martin Klökeriga, kes viibis TLÜAR-i kutsel 2012. a märtsis Tallinnas ning pidas avaliku loengu "Ebatäielik pilt: trükitud raamat ja käsikiri kultuuride uurimises" ning kokkuvõte loengust

  10. CSR - fashion word or strategic approach? / Katrin Vernik, Fred Nahkur ; interv. Evelyn Ojamets

    Index Scriptorium Estoniae

    Vernik, Katrin, 1975-

    2006-01-01

    A. Le Coq Tartu Õlletehase turundusjuht ja Procter & Gamble'i Balti regiooni avalike ja välissuhete juht selgitavad, kuidas on ettevõtte sotsiaalse vastutuse kontseptsioon leidnud rakendust nende organisatsioonides

  11. Evelin Ilves asus Šveitsi suurfirma ausaadikuks. Meeleheaks 52 000 krooni maksev kell / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2008-01-01

    17. mail 2008 oli Estonia teatris "Tristani ja Isolde" esietendus, kus proua Evelin Ilves nimetati Šveitsi luksuskellade meistri Raymond Weili ausaadikuks. Tiitliga kaasnes kingitusena teemantidega käekell. Kommenteerivad Aktsiaseltsi Balti Kell juhataja Toivo Aalja ja proua E. Ilvese erasekretär Piia Vann. Vt. samas: Kadri Simson: ausaadik on peen nimetus reklaamnäole. Riigikogu korruptsioonivastase seaduse kohaldamise erikomisjoni liikme Kadri Simsoni kommentaar. Vt. ka juhtkiri lk. 8: Reklaampost. SL Õhtulehe arvates on sobimatu, et presidendiproua seotakse ühe äriettevõtte huvidega

  12. Üks suund, kaks vaadet / Tiit Land, Argo Ralja ; intervjueerinud Katrin Reimann

    Index Scriptorium Estoniae

    Land, Tiit, 1964-

    2012-01-01

    Intervjuu Tallinna Ülikooli rektori Tiit Landi ja Üliõpilaskonna juhatuse esimehe Argo Raljaga Tallinna Ülikooli iseloomustavatest märksõnadest möödunud aastal, positsioonist Eesti hariduses, ülikooli koostööst instituutide ja kolledžitega

  13. How the complete brand was created? / Katrin Vernik ; interv. Oksana Kostina

    Index Scriptorium Estoniae

    Vernik, Katrin, 1975-

    2005-01-01

    Kuigi kodumaise limonaadi Limpa reklaamikampaaniaks kulus aastatel 2001-2004 kaheksa miljonit krooni, on A. Le Coq marketingijuhi sõnul investeeringud end igati õigustanud. Praeguseks on Limpa saanud kõige tuntumaks lastebrändiks Eestis ning müügiedu on kasvanud oodatust suuremaks

  14. Arafati nõunik : "Yasser on kuningas, kes elab vangis" / Walid Abu Zalaf ; interv. Katrin Lust

    Index Scriptorium Estoniae

    Abu Zalaf, Walid

    2004-01-01

    Yasser Arafati meedianõunik, Palestiina ja Araabia suurima lehe al-Quds tegevjuht vastab küsimustele oma töö, juutide-palestiinlaste vahelise viha, Arafati ning tema perekonna asupaiga kohta. Lisa: Nõunikud: Arafati elu pole ohus

  15. Maid mööda hargnenud pered / Katrin Uuspõld

    Index Scriptorium Estoniae

    Uuspõld, Katrin

    2017-01-01

    TLÜ Rakvere kolledž osaleb Eesti-Soome koostööprojektis REGI, mille eesmärk on toetada kahe riigi vahel hargnenud peresid. Mullu toimusid Rakvere kolledžis neljal korral teemaõhtud "Armastan sind kaugelt". Selgitusi jagavad TLÜ Rakvere kolledži lektor, pereterapeut ning Gordoni perekooli ja PREP-paarisuhte koolitaja Pille Murrik, TLÜ Rakvere kolledži arendusjuht ja REGI projekti Eesti koordinaator Kristel Mänd ning TLÜ Rakvere kolledži õppejuht Marje Lepanen

  16. Kuulujututurunduse abil Eestis veel müüa ei õnnestu / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Maailmas on üha enam levimas kuulujututurundus (buzzmarketing), kus ettevõtted annavad trenditeadlikele arvamusliidritele testimiseks tooteid lootuses, et nood tooteid oma tutvusringkonnale edasi tutvustaksid. Kommenteerivad Merit Raju ja Meelis Vill

  17. Linn kui maastik / Eva Castro ; intervjueerinud Katrin Koov ; toimetanud Carl-Dag Lige

    Index Scriptorium Estoniae

    Castro, Eva

    2011-01-01

    Intervjuus Tallinna arhitektuuribiennaali ühe peaesineja Eva Castroga, kes on AB Groundlab arhitekt ja juhib Londoni Arhitektuuriühingu arhitektuurikoolis maastikuurbanismi magistriprogrammi, maastikuurbanismist ja selle õppekavast, Groundlabi projektide ja Londoni Arhitektuuriühingu arhitektuurikooli tudengite tööde näitusest Eesti Arhitektuurimuuseumis, visioonivõistlusest "Street 2020"

  18. Lühim tee iseendani läheb ümber maailma / Katrin Kaugver

    Index Scriptorium Estoniae

    Kaugver, Katrin, 1950-

    2007-01-01

    Euroopa Teadusraamatukogude Konsortsiumi (CERL) vanaraamatu seminarist Budapestis "Trükised ja omanikud : kirjeldades Euroopa kultuuri geograafiat" 2006. a. novembris. Esimest korda käis Eesti sel kokkusaamisel konsortsiumi täisliikme staatuses, TLÜ Akadeemiline Raamatukogu sai CERL-i täisliikmeks 2006. a.

  19. Teadmiste lõikepunkt : intervjuu Elmar Mittleriga / Elmar Mittler ; küsitlenud Katrin Kaugver

    Index Scriptorium Estoniae

    Mittler, Elmar

    2008-01-01

    Intervjuu Euroopa Teadusraamatukogude Konsortsiumi (CERL) esimehe ning Göttingeni Riigi- ja Ülikooliraamatukogu endise direktori Elmar Mittleriga, kes oli TLÜAR-i külaline ning pidas Tallinnas loengu "Libraries as worldwide infrastructures for open access"

  20. Kroonika esitleb : Justin Timberlake ja Rod Stewart / Justin Timberlake ; interv. Katrin Lust-Buchanan

    Index Scriptorium Estoniae

    Timberlake, Justin

    2006-01-01

    Meesteajakirja GQ auhindade jagamise tseremoonial Londonis sai ajakirja Kroonika reporter jutule aasta rahvusvahelisima mehe tiitli pälvinud Justin Timberlake'i ja elutööpreemia saanud Rod Stewartiga

  1. High-voltage monitoring with a solenoid retarding spectrometer at the KATRIN experiment

    Czech Academy of Sciences Publication Activity Database

    Erhard, M.; Bauer, S.; Beglarian, A.; Bergmann, T.; Bonn, J.; Drexlin, G.; Goullon, J.; Groh, S.; Gluck, F.; Kleesiek, M.; Haussmann, N.; Höhn, T.; Johnston, K.; Kraus, M.; Reich, J.; Rest, O.; Schlosser, K.; Schupp, M.; Slezák, Martin; Thummler, T.; Vénos, Drahoslav; Weinheimer, C.; Wüstling, S.; Zbořil, M.

    2014-01-01

    Roč. 9, JUN (2014), P06022 ISSN 1748-0221 R&D Projects: GA ČR(CZ) GAP203/12/1896 Institutional support: RVO:61389005 Keywords : real-time monitoring * spectrometers * control systems Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.399, year: 2014

  2. Essenson tuleb välja soolotükiga / Katrin Essenson ; interv. Tiit Tuumalu

    Index Scriptorium Estoniae

    Essenson, Katrin, 1973-

    2005-01-01

    14. sept. esietendub Kanuti gildi saalis koreograafi, tantsija ja performance'i kunstniku K. Essensoni soololavastus "Manusega mõtted : Designed to make difference". Lavastusele on dramaturgina kaasa aidanud Von Krahli teatri näitleja T. Eelmaa

  3. Ajaloolise ja isikliku mälu arheoloogiast tulevikuvisioonideni / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2005-01-01

    Kuni 15. I 2006 Victoria ja Alberti muuseumis avatud näitusest "Mineviku ja tuleviku vahel", mis annab ülevaate hiina kaasaegse foto- ja videokunsti ning dokumentatsioonide kaudu ka performance'i hiljutisest arengust ja hetkeseisust ning toob nähtavale praegust hiina kultuuri mõjutavate traditsioonide ja uuenduste keerulise sasipuntra

  4. Kirjanduse ajalugu ja ühiskonna murrang / Pertti Lassila ; tlk. Katrin Raid

    Index Scriptorium Estoniae

    Lassila, Pertti

    1998-01-01

    Bibl. lk. 276. Kokkuvõte inglise k. lk. 317. Talve- ja Jätkusõja põhjustatud kriisist Soome ühiskonnas, mis lõpetas rahvusromantismi saja-aastase valitsusaja soome kirjanduses ja tõi kaasa 1950. a.-te modernismi.

  5. Pikiuuring õpetajaks õppijate professionaalse identiteedi kujunemisest / Katrin Poom-Valickis, Erika Löfström

    Index Scriptorium Estoniae

    Poom-Valickis, Katrin, 1969-

    2014-01-01

    Uurimusest, mille eesmärgiks oli analüüsida õpetajakoolituse üliõpilaste õpetajaidentiteedi aluseks olevaid tähendusi ja uskumusi, mis on loodud interaktsioonis keskkonnaga, sh ülikooli õpingute käigus kogetuga

  6. Vana vimm lõi Maltal välja / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2003-01-01

    President Arnold Rüütli Malta riigivisiidi ajal ütles presidendi protokolliülem Andrei Birov välisministeeriumi protokolliosakonna juhatajale Tiina Nirgile "Fuck you!". Riigivisiit Malta Vabariiki 1.-3.10.2003

  7. Elizabeth II tervitas Briti ja Eesti sõjaväelasi / Allar Viivik, Katrin Rohtla

    Index Scriptorium Estoniae

    Viivik, Allar

    2006-01-01

    Kuninganna Elizabeth II avas Eesti uue miinijahtija Admiral Cowani vapi ning kohtus Briti sõjalaeva Liverpool pardal Afganistanis võidelnud kaitseväelastega. Kuningannat saatis Eesti presidendipaar

  8. Balletistuudio tuli Itaaliast tagasi väärt kogemusega / Katrin Hommik

    Index Scriptorium Estoniae

    Hommik, Katrin

    2009-01-01

    Viljandi Jakobsoni gümnaasiumi balletistuudio saavutas Itaalias Spoletos rahvusvahelistel võistlustel finaalikoha. Balletistuudio osalemisest Põhja-Itaalias toimunud tantsufestivalil "Festival Internazionale della danza di Contemporanea"

  9. Kolm raamistikku Mäetamme unenäole / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2008-01-01

    Kunstniku unenäo materialiseerimisest ja aktualiseerimisest. Marko Mäetamme tekstilisest videoteosest "Pealkirjata" (2007), mis olevat ilmunud kunstnikule unenäos. Inglise kunstiajaloolane Fred Orton ameerika kunstniku Jasper Johnsi tööst "Lipp". S. Freudi teosest "Unenägude tõlgendamine"

  10. Kolm raamistikku Mäetamme unenäole / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2007-01-01

    Marko Mäetamme teosest "Kaotaja paradiis" Veneetsia biennaalil 2007. aastal. Kuraator Mika Hannula. S. Freudi unenägude käsitlusest. Inglise kunstiajaloolane Fred Orton ameerika kunstniku Jasper Johnsi tööst "Lipp"

  11. Properties of Kr-83m conversion electrons and their use in the KATRIN experiment

    Czech Academy of Sciences Publication Activity Database

    Vénos, Drahoslav; Sentkerestiová, Jana; Dragoun, Otokar; Slezák, M.; Ryšavý, Miloš; Špalek, Antonín

    2018-01-01

    Roč. 13, č. 2 (2018), č. článku T02012. ISSN 1748-0221 R&D Projects: GA MŠk LM2015056; GA MŠk LG14004 Institutional support: RVO:61389005 Keywords : detector alignment and calibration methods * neutrino detectors * spectrometers Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders OBOR OECD: Nuclear physics Impact factor: 1.220, year: 2016

  12. Eesti saatus - "ajude äravool" või "ajude ringlus"? / Katrin Oja

    Index Scriptorium Estoniae

    Oja, Katrin

    2005-01-01

    Kõrge kvalifikatsiooniga tööjõu liikumisest ja sellealastest uuringutest maailmas. Luule Sakkeuse ja Eesti Kõrgkoolidevahelise Demouuringute Keskuse korraldatud uuringust "Scientific Personnel in Estonia during the Transition Period" aastate 1989-1994 kohta ning 2003. aastal artikli autori poolt tehtud kvalitatiivsest uuringust Ameerika Ühendriikides elavate eestlaste seas. Skeem

  13. 10 aastat kostüümidraamat / Kaire Raave, Katrin Pauts, Kaja Roomets

    Index Scriptorium Estoniae

    Raave, Kaire

    2007-01-01

    Oma rõivastusest vabariigi aastapäeva presidendi vastuvõttudel räägivad Eesti Kunstiakadeemia rektor Signe Kivi, dirigent Eri Klasi abikaasa Ariel, Riigikogu liige Evelyn Sepp, tippärimehe Urmas Sõõrumaa kaasa Kätlin Maran ja Võru linnapea Ivi Eenmaa. Lisatud valik fotosid presidendi vastuvõttudest aastatel 1999-2006. Vt. samas: President Toomas Hendrik Ilves 9 aastat presidendi vastuvõtul. Pikemalt Signe Kivi kleitidest ja näitusest "24. veebruar" Disaini- ja Arhitektuurigaleriis, kus on eksponeeritud tema kõiki vastuvõttudel kantud kleite

  14. Teadmuspõhise ühiskonna ja elukestva õppe diskursuste rekontekstualiseerimine Eestis / Katrin Aava

    Index Scriptorium Estoniae

    Aava, Katrin, 1963-

    2011-01-01

    Uuritakse, kuidas Euroopa Liiduga ühinemisel rekontekstualiseeritakse Eesti hariduspoliitikas erinevate strateegiadokumentide vahendusel uued diskursused. Uurimuse objektiks on meediatekstid, mille põhjal selgitatakse välja, millal on kasutusele võetud uued võtmesõnad "teadmus" ja "elukestev"

  15. Riigikogu aseesimeeste valimine tekitas paksu verd : Res Publical riigikogu juhatuses kaks kohta / Katrin Pauts

    Index Scriptorium Estoniae

    Pauts, Katrin, 1977-

    2005-01-01

    Riigikogu aseesimeesteks valiti Res Publica liige Taavi Veskimägi ja Keskerakonna liige Toomas Varek. Opositsiooniparteil Res Publica on nüüd juhatuses kaks kohta. Erakondade juhtpoliitikute kommentaare

  16. Kunstnikumüüt ja hullumeelsus : Outsider-kunst / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2003-01-01

    Kuidas kunstnikumüüdid või -identiteedid võimaldavad või soodustavad autori kogemuste, sh. "hullumeelsuse" tõlkimist kunsti keelde. Marko Laimre sümboolsest samastumisest grafitilooja Ülo Kiplega ja M. Laimre fotoinstallatsioonist "Psycho" (2000). Vincent van Goghi geniaalsuse seotusest vaimuhaigusega, "hullu" kunstniku müüdist kunstiajaloos

  17. Gaseous source of 83mKr conversion electrons for the neutrino experiment KATRIN

    Czech Academy of Sciences Publication Activity Database

    Vénos, Drahoslav; Slezák, Martin; Dragoun, Otokar; Inoyatov, A.; Lebeda, Ondřej; Pulec, Zdeněk; Sentkerestiová, Jana; Špalek, Antonín

    2014-01-01

    Roč. 9, č. 12 (2014), s. 1-12 ISSN 1748-0221 R&D Projects: GA ČR(CZ) GAP203/12/1896 Institutional support: RVO:61389005 Keywords : detector alignment and calibration methods * spectrometers * neutrino detectors * dark matter detectors Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.399, year: 2014

  18. Milleks põllumajandusmaastiku elurikkus? / Eneli Viik, Iiri Raa, Ere Ploomipuu, Katrin Vask

    Index Scriptorium Estoniae

    2012-01-01

    Elurikkus on meie maakeral leiduva kogu elusa looduse mitmekesisus, mida võib eristada kolmel tasandil: geneetiline tasand, liikide tasand, koosluste mitmekesisuse tasand. Kuidas säilitada elurikkust põllumajandusmaastikul

  19. Kas madonnale disainitud dress lõpetas prügikastis? / Kais Allkivi, Katrin Pauts

    Index Scriptorium Estoniae

    Allkivi, Kais

    2009-01-01

    Viru keskuse Bastioni poes tulevad müügile 25 rahvusmustriga dressi, mis on peaaegu identsed esileedi Evelin Ilvese palvel Bastioni moedisaineri Merike Pääro poolt Madonnale disainitud spordirõivastega

  20. Eesti teater välismaal : gastrollid ja saavutused aastal 2004 / Mari Kolle, Katrin Talts

    Index Scriptorium Estoniae

    Kolle, Mari

    2004-01-01

    Veebruaris andis Londoni Teatriühing balletipaarile A. Oks-T. Edur Briti teatripreemia, Laurence Olivier teatriauhinna; VAT Teatri lavastus "Kivid" hinnati Peterburi rahvusvahelisel noorsooteatrite festivalil "Vikerkaar" preemiaga "Parim lavastus väikesel laval"; Vanemuise lavastus "Roberto Zucco" võitis Poolas teatrifestivalil "Kontakt" II peaauhinna ja nimiosatäitja T. Tuisk parima noore näitleja auhinna; Von Krahli Teater võitis lavastusega "Luikede järv" New Yorgi Bessie-auhinna ; Jaapani rahvusvahelisel teatrifestivalil pälvis lavastaja J. Urvet parima meesnäitleja preemia osatäitmise eest "Niagaaras"; rahvusvaheliselt äratas tähelepanu eesti-soome ühistööna kirjutatud näidend "Taksojuhid", mille autorid on M. Ulman ja J. Niilekselä. Kaasaegse tantsu vallas olid rahvusvaheliste festivalide favoriidid M. Kangro, K. Essenson ja R. Keerd

  1. Muutuv ruum : meediakunst eesti kultuuris = Changing spaces : new media art in Estonian culture / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2004-01-01

    1990-ndate aastate Eesti kaasaegse kunsti arengust, selle medialiseerumisest, mida iseloomustab fotograafia, video ja arvutipõhise meedia tungimisest "kõrgesse kunsti", Mall Nukke, Tiia Johannsoni, Raivo Kelomehe ja Nelli Rohtvee netiprojektidest ning Ando Keskküla kureeritud rahvusvahelistest kunsti- ja meediaüritustest "Interstanding"1-3, ka Prantsuse-Balti videofestivalidest, uue meedia festivalist "Offline@online". Eestikeelne lühem variant ilmunud ajakirjas "Kunst.ee", 2001, nr.4, inglisekeelne - ajakirjas "Mare Articum", 2000, nr. 2(7)?

  2. Aeg ei küsi, kelle hinges laulab lind / Katrin Nielsen

    Index Scriptorium Estoniae

    Nielsen, Katrin

    2000-01-01

    Pärnu Mudaravilas avatud nongratalase Asta Isaku maalinäitusest "Looduses ja lootuses" ning Chaplini kunstikeskuses avatud Tammiste hooldekodu elaniku Aivar Kurvitsa maalinäitusest "Ära reosta loodust"

  3. KATRIN :a New Beta-Spectroscopic Experiment to Determine the Neutrino Mass

    Czech Academy of Sciences Publication Activity Database

    Dragoun, Otokar

    2007-01-01

    Roč. 958, - (2007), s. 193-196. ISBN 978-0-7354-0472-4. ISSN N R&D Projects: GA MŠk LC07050 Institutional research plan: CEZ:AV0Z10480505 Keywords : neutrino mass * beta ray spectroscopy Subject RIV: BE - Theoretical Physics

  4. Prototype of an angular-selective photoelectron calibration source for the KATRIN experiment

    Czech Academy of Sciences Publication Activity Database

    Valerius, K.; Hein, H.; Baumeister, H.; Beck, M.; Bokeloh, K.; Bonn, J.; Gluck, F.; Ortjohann, H.W.; Ostrick, B.; Zbořil, Miroslav; Weinheimer, Ch.

    2011-01-01

    Roč. 6, - (2011), P01002/1-P01002/11 ISSN 1748-0221 R&D Projects: GA MŠk LA318; GA MŠk LC07050 Institutional research plan: CEZ:AV0Z10480505 Keywords : Spectrometers * Photoemission * Detector alignment and calibration methods (lasers, sources, particle-beams) Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.869, year: 2011

  5. Good corporate reputation - a key to a client's heart / Katrin Rahu, Evelin Ojamets ; interv. Oksana Kostina

    Index Scriptorium Estoniae

    Rahu, Katrin, 1978-

    2005-01-01

    Hill & Knowlton Estonia poolt läbi viidud uurimusest selgus, et inimesed nii Eestis, Lätis kui ka Leedus peavad organisatsiooni tööle asumisel tähtsaks ettevõtte, eriti selle mikrokliima, head mainet. Eesti puhul ilmnes üllatuslikult, et karjäärivõimalused töökoha valikul tähtsaks motiveerivaks faktoriks ei ole. Diagrammid. Skeemid

  6. Indigolapsed - teistmoodi lapsed või lihtsalt lapsed? / Katrin Helend-Aaviku

    Index Scriptorium Estoniae

    Helend-Aaviku, Katrin

    2009-01-01

    Juuru rahvamajas näidati filmiõhtul James Twymani indigolastest rääkivat dokumentaalfilmi "Indigo evolutsioon" (USA, 2005). Filmi ning Lee Carrolli ja Jan Toberi raamatu "Indigolapsed: uus põlvkond on saabunud" põhjal järgnenud arutelust indigolastest koos psühholoog Pille Kuldkepi ja Kalev Veskimäega, kellel on soov luua Paidesse vabakool

  7. IP Tallinn 2003 - ühendab teadmised ja meelelahutuse / Karen Veidik, Katrin Tedder

    Index Scriptorium Estoniae

    Veidik, Karen

    2003-01-01

    EBSi eestvedamisel toimuvast rahvusvahelisest intensiivprogrammist, mille raames jagatakse üheksa ülikooli tudengitele teadmisi turundusest, läbirääkimise meetoditest ja kultuurieripäradest suhtlemises

  8. Ümberkujundava juhtimise karismaatiline aspekt ja selle tõhusus / Kulno Türk, Gerda Mihhailova

    Index Scriptorium Estoniae

    Türk, Kulno, 1954-

    2004-01-01

    Autorite arvates ei tohi vastandada klassikalist juhtimist eestvedamisele ning juhi ja liidri rollid on mõlemad olulised organisatsiooni edukuse eeldused. Edukas juht peab kasutama tasakaalustatult erinevaid juhtimisstiile. Skeem

  9. Subjectivity Matters: Using Gerda Lerner's Writing and Rhetoric to Claim an Alternative Epistemology for the Feminist Writing Classroom

    Science.gov (United States)

    Ryan, Kathleen J.

    2006-01-01

    In this article, the author argues the common assumption among teachers that the traditional academic essay is the most appropriate sustained writing activity for students. As a feminist, the author believes that the traditional academic essay considers a positivist, patriarchal epistemology that governs beliefs about knowledge and teaching…

  10. Pronksiööl küpsenud valus tõde / Gerda Kordemets ; intervjueeris Jüri Aarma

    Index Scriptorium Estoniae

    Kordemets, Gerda, 1960-

    2009-01-01

    ETV lavastuslike saadete toimetuse juhataja meenutab Tallinna Linnateatri lavastuse "Karin ja Indrek. Tõde ja õigus" Eesti Televisioonile lindistamist aprillis 2007. Lavastaja Elmo Nüganen, aluseks Tammsaare "Tõe ja õiguse" IV osa

  11. Kuriteoohvrite abistamisest Eestis : [bakalaureusetöö] / Gerda Sepp ; Tartu Ülikool, õigusteaduskond ; juhendaja: Silvia Kaugia

    Index Scriptorium Estoniae

    Sepp, Gerda

    2009-01-01

    Viktimoloogia mõistest ja olemusest, kuritegevusest Eestis viimasel viiel aastal, kuriteo negatiivsest mõjust selle ohvrile, ohvrite reaalsetest võimalustest abisaamiseks praeguses Eestis, hinnangust ohvriabi süsteemile Eestis

  12. Charismatic aspect of transformational leadership and its role in creating organizational culture / Gerda Mihhailova, Kulno Türk

    Index Scriptorium Estoniae

    Mihhailova, Gerda

    2006-01-01

    Ettevõtte kasvu- ja küpsusfaasis vajatakse autorite hinnangul enam nn. klassikalisi juhte, karismaatilised juhid sobivad pigem radikaalseid muutusi nõudvatesse situatsioonidesse, nagu näiteks ettevõtte rajamine või selle langusfaasist välja toomine. Skeemid. Tabel. Lisa lk. 194

  13. Evaluating the use of a customer resource management system in selected South African business schools / Gerda Schilling

    OpenAIRE

    Schilling, Gerda

    2014-01-01

    The management and implementation of unique resources contribute to the creation of a sustainable competitive advantage that has a positive impact on the owner of the resource’s profits. Customer relationship management becomes very important because customers with their own personal devices and options such as cloud computing, social media and mobility have converged into a renewed driving force expecting organisations to remember their experiences. These experiences should not been stored i...

  14. "Ega need loteriivõidud meile taevast alla ei kuku" : Eesti Kooli jõulupidu pole enem mägede taga / Katrin Käärik ; foto: Katrin Käärik

    Index Scriptorium Estoniae

    Käärik, Katrin, 1950-

    2006-01-01

    lapsevanemad Tiina Baugus-Hörnstam, Aime Mölder ja Mart Klaar on need, kes on võtnud Stockholmi Eesti Kooli jõululoterii korraldamise töö ja rõõmu endi kanda. Annetamise võimalustest ja tähtaegadest

  15. Peidetud mõte : Euroopa portselanfiguuride tähendusest / Kersti Kuldna-Türkson ; tõlk. Katrin Kivimaa

    Index Scriptorium Estoniae

    Kuldna-Türkson, Kersti

    2005-01-01

    Esemete funktsioonide ja sümboolsete tähenduste teisenemisest sõltuvalt elulaadist ja keskkonnast. 18.-20. saj. portselanfiguuridest Kadrioru Kunstimuuseumi ja Mikkeli muuseumi kogude põhjal - figuraalsed lauakaunistused, realistlikud kompositsioonid, sari "Venemaa rahvad", 20. saj. vene agitportselan. Portselanitööstus Euroopas

  16. "Jonas, derefter Katrine og Sebastian": En enkel metode til at lære alle de studerendes navne

    DEFF Research Database (Denmark)

    Jørgensen, Anker Helms

    2012-01-01

    Denne artikel præsenterer en enkel, systematisk metode til at lære alle de studerendes navne i universitetsundervisning. Metoden er ret effektiv: I sidste semester lærte jeg 30 studerendes navne på 1.5 time; det svarer til 3 minutter pr. studerende og 6 minutter pr. uge. Min erfaring viser, at de...

  17. "Jonas, derefter Katrine og Sebastian": En enkel metode til at lære alle de studerendes navne

    DEFF Research Database (Denmark)

    Jørgensen, Anker Helms

    2013-01-01

    Denne artikel præsenterer en enkel, systematisk metode til at lære alle de studerendes navne i universitetsundervisning. Metoden er ret effektiv: I sidste semester lærte jeg 30 studerendes navne på 1.5 time; det svarer til 3 minutter pr. studerende og 6 minutter pr. uge. En empirisk undersøgelse ...

  18. Kohtuasjad in puncto libertatis: isiku staatuse tuvastamise lähtekohad asehaldusaja Eestimaal / Katrin Kello, Hesi Siimets-Gross

    Index Scriptorium Estoniae

    Kello, Katrin

    2017-01-01

    Isiku staatuse (vaba versus pärisori) käsitlemisest Eestimaa provintsi kohtutes 18. sajandi viimasel veerandil. Pärisorjuse tuvastamisest ja päruskuuluvust puudutanud õigusallikatest, asehaldusaegsest (1783-1796) kohtusüsteemist

  19. Hinnatõusuralli. Lõppu ei paista : keskküttesoe 12, elekter koguni 23% kallimaks / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Kallinev maagaas kergitab veel tänavu keskküttesoojuse hinda 12% võrra ja elektrienergia kallineb 23%. Eestit ähvardavast inflatsioonist ja hinnatõusudest. Vt. samas: Gaas kallineb etteaimamatult

  20. Metsikuse jõud ja ilu = The power & beauty of the wild / Mariliis Lilover ; intervjueerinud Katrin Koov

    Index Scriptorium Estoniae

    Lilover, Mariliis

    2015-01-01

    Mariliis Lilover on maailmakodanikust eesti arhitekt, kes praegu elab Lundis ja teeb koostööd sealse teaduspargiga oma loodud iliilil arcitecture nimelises büroos. Intervjuus avab ta oma mõtteid kaasaja ahitektuurist ja disainist. Tehnoloogia annab suure võimaluse minna sinna, kuhu inimteadvus seni pole küündinud. Palju võimsamalt saab rakendada moodsat ehitustehnoloogiat ja sotsiaalvõrgustikke. Kaasaegses arhitektuuris tuleb liikuda tehnoloogia pakutavast esteetilisest sfäärist edasi eetilisse sfääri ning tegelda tõsiste väljakutsetega ühiskonnas. Lähemalt on vaatluse all Mexico City sülem-sild ja Helsingi Länsisatamanpuisto park.

  1. Eluasemeruum ja linnapoliitika : sotsiaalsest eristumisest ja planeerimisest Sampo Ruoppila Tallinna-teemalises väitekirjas (2006) / Katrin Paadam

    Index Scriptorium Estoniae

    Paadam, Katrin

    2006-01-01

    Doktoritööst: Ruoppila, Sampo. Residential differentiation, housing policy and urban planning in the transformation from state socialism to a market economy : the case of Tallinn. Espoo : Helsinki University of Technology, 2006

  2. Development of a rear wall for the KATRIN rear section and investigation of tritium compatibility of rear section components

    Energy Technology Data Exchange (ETDEWEB)

    Schoenung, Kerstin

    2016-01-15

    The aim of the KArlsruhe TRItium Neutrino experiment is to improve the current neutrino mass sensitivity limit to 0.2 eV/c{sup 2} (90%C.L.). For that, the required proof of suitability of several components for a low pressure tritium atmosphere is furnished. In addition, an optical design for an e-gun is developed and the resulting electron rate is calculated. Also, a final Rear Wall with temporally stable and homogeneous work function is developed and characterized within the scope of this thesis.

  3. Development of a Rear Wall for the KATRIN Rear Section and investigation of tritium compatibility of Rear Section components

    OpenAIRE

    Schönung, Kerstin

    2016-01-01

    The aim of the KArlsruhe TRItium Neutrino experiment is to improve the current neutrino mass sensitivity limit to 0.2 eV/c2 (90%C.L.). For that, the required proof of suitability of several components for a low pressure tritium atmosphere is furnished. In addition, an optical design for an e-gun is developed and the resulting electron rate is calculated. Also, a final Rear Wall with temporally stable and homogeneous work function is developed and characterized within the scope of this thesis.

  4. Lasteaiaõpetaja roll laste agressiivse käitumise vähendamisel / Katrin Taurus, Lii Lilleoja

    Index Scriptorium Estoniae

    Taurus, Katrin

    2015-01-01

    Tallinna lasteaiaõpetajate seas läbi viidud uurimusest selgitamaks välja 2-7-aastaste laste agressiivse käitumise tekkepõhjused ning õpetajate poolt kasutatavad abistamismeetodid selle vähendamiseks

  5. Uuriv arhitektuur : intervjuu arhitekt Sten Gromarkiga = Exploring Architecture : Interview with architect Sten Gromark / Sten Gromark ; interv. Katrin Paadam

    Index Scriptorium Estoniae

    Gromark, Sten

    2007-01-01

    Üks toimetajatest ja autoritest 2006. a. Stockholmis ilmunud arhitektuurikogumikust "Utforskande Arkitektur" ("Uuriv arhitektuur"), mille kandev idee on uuriv suhtumine arhitektuuri sotsiaalsetesse ja kultuurilistesse võimalustesse ja võimalikkusesse

  6. Eesti tööjõuturg: paindlik või turvaline ? / Mikk Salu ; kommenteerinud Katrin Jaaksoo

    Index Scriptorium Estoniae

    Salu, Mikk, 1975-

    2010-01-01

    Tartu Ülikooli sotsiaalteaduslike rakendusuuringute keskuse RAKE (töögrupi juht Raul Eamets) ja Poliitikauuringute Keskuse Praxis (töögrupi juht Andres Võrk) poolt läbi viidud tööjõu turvalise paindlikkuse (ingl. k. flexicurity) uuringust. Taani mudel

  7. Alaealine - kuriteo toimepanija : [bakalaureusetöö] / Katrin Sarv ; Akadeemia Nord, õigusteaduskond ; juhendaja: Helve Särgava

    Index Scriptorium Estoniae

    Sarv, Katrin

    2001-01-01

    Alaealiste poolt sooritatud kuritegude üldiseloomustus, võrdlus Läti, Soome ja Rootsiga, alaealiste kuritegevuse põhjused, kuritegevuse vastu võitlemise alused - kriminaalpreventsioon, kuritegevuse profülaktika

  8. Juuremädanike levik on arvatust ulatuslikum / Tiia Drenkhan, Elisabeth Rähn, Katrin Jürimaa ... [jt.

    Index Scriptorium Estoniae

    2014-01-01

    Maaülikooli metsapatoloogia töörühm uuris aastatel 2012-2014, mil määral on viljakad metsakasvukohatüübid juuremädanike poolt kahjustatud. Projekti "Olulisimate juuremädanike tekitajate leviku ja kahjustuse uuring Eestis" läbiviimist toetas KIK

  9. Õpetajate professionaalse arengu uurimine : kuidas muuta eelarvamuslikud tõekspidamised arengupotentsiaaliks / Katrin Poom-Valickis

    Index Scriptorium Estoniae

    Poom-Valickis, Katrin

    2003-01-01

    Õpetajate veendumuste ja tõekspidamiste roll pedagoogilises teadmises. Kutsetõekspidamiste kujunemine ja kujundamine. Täiendkoolitusel osalenud õpetajate seas läbi viidud uuringust metafooride kasutamisest õpetajate eelarvamuslike tõekspidamiste selgitamisel. Uuringus õpetajate arusaamadest ja veendumustest õpetamisel paluti õpetajatel leida metafoor, mis iseloomustaks õpetamist ja õpetaja rolli õpetamisel. Takistavate eelarvamuste muutmine arengupotentsiaaliks

  10. Visionäärid ning disaini hälli kiigutajad Charles ja Ray Eames / Katrin Kask

    Index Scriptorium Estoniae

    Kask, Katrin

    2007-01-01

    Ameerika disainiklassikute Charles (1907-1978) ja Ray Eamesi (1912-1988) disainitud toolidest. Nende oma majast Californias, mis koosneb tehases valmistatud teras-, vineer- ja klaasdetailidest. Filmidest "Ülevaade Metropolitanist" ja "Powers of Ten"

  11. [Kätlin Kätlin. Üks pole ühtegi = One is none] / Katrin Väli

    Index Scriptorium Estoniae

    Väli, Katrin, 1956-

    2008-01-01

    Tutvustus: Kätlin, Kätlin, pseud. Üks pole ühtegi = One is none / Kätlin Kätlin ; [tõlkijad Mika Keränen ja Marina Tervonen ; illustratsioonid: Hanneleele Kaldmaa. Tallinn : Positive Projects], 2008

  12. Mees, kes näinud kõige rohkem moodsaid aedu / Marc Treib ; interv. Triin Ojari, Katrin Koov

    Index Scriptorium Estoniae

    Treib, Marc

    2008-01-01

    Berkeley ülikooli (California) professor Marc Treib räägib maastikuarhitektuurist, maastiku urbanismist, mõistest "kujundatud maastik", moodsa maastikukujunduse uurimisest, uutest suundadest maastiku kujundamisel. Portreefoto intervjueeritavast

  13. Naisekuju nõukogude ja eesti identiteedi kandjana sotsrealistliku maalikunsti ja graafika näitel / Katrin Kivimaa

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2007-01-01

    Sotsialistliku realismi kaanoni rakendamisega seotud muutustest II maailmasõja järgses eesti kujutavas kunstis - käsitletakse naise kujutamist, tollase ametliku visuaalpropaganda teenistuses olevana, varasemast eesti kunstist laenatud naisekuvandite kaudu edastatud rahvuslikku ja isegi nõukogudevastast kuvandit

  14. Ultra-stable implanted Rb-83/Kr-83m electron sources for the energy scale monitoring in the KATRIN experiment

    Czech Academy of Sciences Publication Activity Database

    Zbořil, Miroslav; Bauer, S.; Beck, M.; Bonn, J.; Dragoun, Otokar; Jakoubek, J.; Johnston, K.; Kovalík, Alojz; Otten, E. W.; Schlosser, K.; Slezák, Martin; Špalek, Antonín; Thummler, T.; Vénos, Drahoslav; Žemlička, J.; Weinheimer, C.

    2013-01-01

    Roč. 8, č. 3 (2013), P03009 ISSN 1748-0221 R&D Projects: GA ČR(CZ) GAP203/12/1896 Institutional support: RVO:61389005 Keywords : lasers * sources * particle-beams * spectrometers Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.526, year: 2013 http://iopscience.iop.org/1748-0221/8/03/P03009/pdf/1748-0221_8_03_P03009.pdf

  15. Krahv Hermann Keyserlingi konflikt eestimaalastest rahvuskaaslastega 1917-1918 / Henning von Wistinghausen ; tõlk. Katrin Kaugver

    Index Scriptorium Estoniae

    Wistinghausen, Henning von

    2004-01-01

    H. Keyserlingi artiklite "Sõja mõttest" ja "Mõningaid vaatepunkte päevaküsimusele" seisukohtadest ja teesidest, mis käsitlesid kultuurifilosoofilisi vaateid Esimesele maailmasõja ja tuleviku olukorra kohta ning Saksamaa rolli antud ajalooetapil. Eestimaa baltisakslaste etteheidetele vastuseks kirjutatud H. Keyserlingi kirjast Eduard Dellingshausenile, kus on ära toodud artiklite kirjutamise motiivid. Vt. ka: Undusk, Jaan. "Viimane baltlane Hermann Keyserling." (Tuna 2003/2). Järg. nr. 4, lk. 66-81

  16. Luksuslik ruum kõigile : vestlus arhitekt Anne Lacatoniga = Luxury space for everyone : interview with Anne Lacaton / intervjueerinud Katrin Paadam

    Index Scriptorium Estoniae

    Lacaton, Anne, 1955-

    2013-01-01

    Prantsuse arhitekt Anne Lacaton oma büroo (Lacaton & Vassal, Frédéric Druot, 2011) linnaehituslikult uuendusliku projekti järgi ümber ehitatud 1960. aastate korterelamust Tour du Bois-le-Prêtre Pariisis, sotsiaalelamute ehitusest Prantsusmaal, 1960.-1970. aastatel ehitatud elamute taaskasutusega seotud probleemidest, rekonstrueerimise kasulikkusest võrreldes elamu lammutamise ja uuesti ehitamisega, linnas elavatele inimestele paremate elamistingimuste loomisest, linnaplaneerimisest

  17. "Rudi" polutshil glavnõi priz

    Index Scriptorium Estoniae

    2006-01-01

    Lastefilm "Ruudi" (stsenaristid Katrin Laur, Aare Toikka, Aarne Mägi : režissöör Katrin Laur : nimiosas lapsnäitleja Paul Oskar Soe) sai Tokyo 14. lastefilmide festivalil Kodomotachino parima mängufilmi auhinna

  18. Grand prix / J. U.

    Index Scriptorium Estoniae

    J. U.

    2006-01-01

    Lastefilm "Ruudi" (stsenaristid Katrin Laur, Aare Toikka, Aarne Mägi : režissöör Katrin Laur : nimiosas lapsnäitleja Paul Oskar Soe) sai Tokyo 14. lastefilmide festivalil Kodomotachino parima mängufilmi auhinna

  19. "Ruudi" võitis Tokyos

    Index Scriptorium Estoniae

    2006-01-01

    Lastefilm "Ruudi" (stsenaristid Katrin Laur, Aare Toikka, Aarne Mägi : režissöör Katrin Laur : nimiosas lapsnäitleja Paul Oskar Soe) sai Tokyo 14. lastefilmide festivalil Kodomotachino parima mängufilmi auhinna

  20. Vormiriietus teeb koolilapse shikiks ja paneb väärikalt käituma / Sandra Maasalu

    Index Scriptorium Estoniae

    Maasalu, Sandra

    2008-01-01

    Eesti koolides kantavatest koolivormidest. Pikemalt Katrin Kivi disainitud Tallinna Saksa gümnaasiumi koolivormist ja Tallinna Arte gümnaasiumi koolivormist. Katrin Kivi ja Peeter Kreitzbergi kommentaarid. 8 ill.

  1. Mis on peidus hariduse ajaloos? : haridus on seotud võimuga ja kuskil ei tule see esile nii selgelt kui Baltikumis / intervjueerinud Liina Lukas ; saksa keelest tõlkinud Reet Bender, Liina Uudelt ja Triinu Saks

    Index Scriptorium Estoniae

    2016-01-01

    Vestlusringis osalejad Heinrich Bosse, Jürgen Joachimsthaler, Gert von Pistohlkors, Silke Pasewalck, Kaspar Renner ja Marju Luts-Sootak selgitavad Tartu ja Marburgi ülikooli koostöös toimuva rahvusvahelise konverentsi "Baltimaised haridusteed" ("Baltische Bildungsgescichte(n)") 20.-22.09.2016 eesmärke ja teemat

  2. Vene kirjanduse õpik lõhestab kirjanikud headeks ja pahadeks / Vaapo Vaher

    Index Scriptorium Estoniae

    Vaher, Vaapo, 1945-

    2003-01-01

    Arvustus: XX sajandi vene kirjandus. I, Luule / [koostanud Katrin Kalamees ja Maritsa Lens. Tallinn] : Avita, 2002; XX sajandi vene kirjandus. II, Proosa / [koostanud Katrin Kalamees ja Maritsa Lens. Tallinn] : Avita, 2002. Vastukajad: Tuch, Boris. Dva toma oshibok // Estonija (2003) 28. apr., lk. 9 ; Kalamees, Katrin ; Lens, Maritsa. Vastuseid Vaapo Vaheri küsimistele // Eesti Päevaleht (2003) 2. mai, lk. 17

  3. The determination of multiple resistance, inheritance and cytochrome P450 activity in bifenthrinresistant Tetranychus urticae Koch (Acari: Tetranychidae)

    OpenAIRE

    AY, Recep; YORULMAZ, Sibel

    2010-01-01

    In this study, multiple resistance, inheritance and cytochrome P450 enzyme activity were determined in Tetranychus urticae Koch (SAK) population after 20 selections for bifenthrin resistance. Selection study and LC50, 60 levels of SAK population of T. urticae were determined by dry film method. LC50 level of the SAK population selected twenty times with bifenthrin was increased from 984.49 to 11914.40 µl l-1 distiled water. Selected population showing 21.84 fold resistances was named ...

  4. Patch test reactions to mite antigens: a GERDA multicentre study. Groupe d'Etudes et de Recherches en Dermato-Allergie.

    Science.gov (United States)

    Castelain, M; Birnbaum, J; Castelain, P Y; Ducombs, G; Grosshans, E; Jelen, G; Lacroix, M; Meynadier, J; Mougeolle, J M; Lachapelle, J M

    1993-11-01

    We performed patch tests with Dermatophagoides pteronyssinus (Dp) antigens from 2 different sources in 355 non-randomly selected patients with atopic dermatitis (AD) and 398 subjects of a control group. The study demonstrated that contact sensitization to mites occurred in an appreciable % of AD cases (20.8%), using commonly available assay products. The differences recorded between the 2 materials tested were related to the concentration of P1 antigen. Non-atopic patients rarely showed positive reactions to Dp (0.75%), when strict criteria for readings were applied and if 2 readings were performed. Patients with positive patch tests did not necessarily show positive immediate skin tests. It would be useful to carry out tests systematically in atopic patients, even if it is not yet known what modern treatment would be best for the patient. Laboratories still do not provide standardized house dust mite preparations--measuring and codifying their biological activity--for use in patch tests. It is to be hoped that the extension of this type of test will lead to the production of better test materials, in syringes with homogeneous dispersion and concentration.

  5. Kelle nimel NO99 seekord kõneleb ja kelle poole pöördub? / Valle-Sten Maiste, Gerda Kordemets, Madli Pesti...[jt.

    Index Scriptorium Estoniae

    2011-01-01

    23. märtsil esietendub Nokia kontserdimajas NO99 lavastus"The Rise and Fall of Estonia", mis saab olema Eesti-teemaliste lavastuste tsükli lõpp. Lavastajad Ene-Liis Semper ja Tiit Ojasoo. Eesti teatrikriitikute ühendus tegi eksperimendi ja otsustas oma teatrimuljed kohe jäädvustada: esietendusjärgsel hilisõhtul vestlesid lavastusest erinevad eesti teatrikriitikud

  6. Staphylokinase has distinct modes of interaction with antimicrobial peptides, modulating its plasminogen-activation properties

    Science.gov (United States)

    Nguyen, Leonard T.; Vogel, Hans J.

    2016-01-01

    Staphylokinase (Sak) is a plasminogen activator protein that is secreted by many Staphylococcus aureus strains. Sak also offers protection by binding and inhibiting specific antimicrobial peptides (AMPs). Here, we evaluate Sak as a more general interaction partner for AMPs. Studies with melittin, mCRAMP, tritrpticin and bovine lactoferricin indicate that the truncation of the first ten residues of Sak (SakΔN10), which occurs in vivo and uncovers important residues in a bulge region, improves its affinity for AMPs. Melittin and mCRAMP have a lower affinity for SakΔN10, and in docking studies, they bind to the N-terminal segment and bulge region of SakΔN10. By comparison, lactoferricin and tritrpticin form moderately high affinity 1:1 complexes with SakΔN10 and their cationic residues form several electrostatic interactions with the protein’s α-helix. Overall, our work identifies two distinct AMP binding surfaces on SakΔN10 whose occupation would lead to either inhibition or promotion of its plasminogen activating properties. PMID:27554435

  7. Traumaatilise sündmuse mõju fotograafi loomingule : Margaret Bourke-White'i ja Lee Milleri näitel / Katrin Sarapuu

    Index Scriptorium Estoniae

    Sarapuu, Katrin

    2010-01-01

    Uuritakse kas ja kuidas kajastuvad traumaatilised sündmused ja nende tunnistamine fotograafi loomingus. Selleks analüüsitakse ja võrreldakse mõlema fotograafi sõjaeelseid ja -aegseid töid ning sõjajärgsetele koonduslaagrite külastustele eelnenud ja järgnevat loomingut

  8. Mitteresidendi tulu maksustamine kehtivas õiguses : [bakalaureusetöö] / Katrin Rehemägi ; Akadeemia Nord, õigusteaduskond ; juhendaja: Liia Kubja, konsultant: Rainer Osanik

    Index Scriptorium Estoniae

    Rehemägi, Katrin

    2001-01-01

    Maksuõiguse teoreetilised alused, mitteresidendi tulu maksustamine tulumaksuseaduse järgi, rahvusvahelise topeltmaksustamise vältimise võimalused, Eesti seadusandluse vajalikud muudatused ühinemisel Euroopa Liiduga

  9. Professional preparation of teachers - problems and possibilities. The Estonian case / Katrin Poom-Valickis, Ülle Saarits, Helle Sikka... [jt.

    Index Scriptorium Estoniae

    2008-01-01

    Artikkel kirjeldab õpetajakoolituse olukorda Eestis aastal 2003. Aineõpetajate, klassiõpetajate ja koolieelsete lasteasutuste õpetajate ettevalmistusest Tallinna Ülikoolis ning nende karjääriperspektiive tööturul

  10. Üleminek riigikeelsele gümnaasiumiõppele : vilistlaste seisukohtade Q-metodoloogiline diskursusanalüüs / Anu Masso, Katrin Kello, Valeria Jakobson

    Index Scriptorium Estoniae

    Masso, Anu, 1977-

    2013-01-01

    Keskendutakse diskursustele, mis on seotud riigikeelsele gümnaasiumiõppele üleminekuga senistes vene õppekeelega koolides. Uuring põhineb Tallinnas, Tartus, Ida-Virumaal ja Lätis läbi viidud Q-metodoloogilistel intervjuudel

  11. Järgmise nädala lõpul peetakse Tallinnas... / Katrin Kivimaa ; intervjueerinud R[eet] V[arblane

    Index Scriptorium Estoniae

    Kivimaa, Katrin, 1969-

    2011-01-01

    27. ja 28. mail Tallinnas Eesti Kunstiakadeemia Rüütelkonna hoones toimuvast rahvusvahelisest sümpoosionist "Common Differences: Issues for Feminist Curating in Post-Socialist Europe" ("Ühised erinevused: feministlik kuraatoripraktika postsotsialistlikus Euroopas")

  12. Everything should be made as simple as possible, but not simpler ehk kuidas protsesside lihtsustamine võib maksimeerida ettevõtja kasu / Katrin Avloi

    Index Scriptorium Estoniae

    Avloi, Katrin

    2013-01-01

    Uuest ettevõtete elektroonilisest andmevahetuskanalist Danske LiveGate. Näiteid, milliste pangateenuste kasutamist Danske LiveGate võimaldab ning kuidas protsesside automatiseerimine integreeritud lahenduse kaudu ettevõttele kasu toob

  13. Turistlik eskapism ja sümfoonilised variatsioonid : Tallinna vanalinn vaatefilmides 1960.-1970. aastail / Eva Näripea ; tõlk. Katrin Kivimaa

    Index Scriptorium Estoniae

    Näripea, Eva

    2005-01-01

    Filmid "Toompea" (režissöör Valeri Blinov, Eesti Telefilm, 1977), "Tallinna mosaiik" (režissöör Andrei Dobrovolski, Tallinnfilm, 1967), "Pikk tänav" (režissöör Hans Roosipuu, Tallinnfilm, 1966) ning "Tallinna saladused" (režissöör Ülo Tambek, Tallinnfilm, 1967)

  14. Maarjamäe tallihoone äratamine = Waking of the Maarjamäe stables / Jaak Huimerind, Tarmo Piirmets ; intervjueerinud Katrin Koov

    Index Scriptorium Estoniae

    Huimerind, Jaak, 1957-

    2015-01-01

    Intervjuu arhitekt Jaak Huimerinnaga ja sisearhitekt Tarmo Piirmetsaga Maarjamäe suvemõisa tallihoone restaureerimisest, millest sai Eesti Ajaloomuuseumi näitusteruum. Arhitektuur: Jaak Huimerind, Kadri Viltrop, Stuudio Paralleel. Sisearhitektuur: Tarmo Piirmets, PINK. Valmimisaasta: 2014

  15. Õpetaja professionaalse rolli internaliseerimise hindamine õpetajakoolituse esmaõppe üliõpilaste hulgas / Äli Leijen, Katrin Kullasepp, Aivar Ots

    Index Scriptorium Estoniae

    Leijen, Äli, 1979-

    2013-01-01

    Aineõpetaja magistriõppe üliõpilaste seas läbi viidud uurimusest, milles vaadeldakse, kuidas üliõpilased koordineerivad personaalset ja professionaalset mina-positsiooni erialaste ambivalentsete olukordade kontekstis

  16. Surmanuhtlus kõrgeima võimaliku karistusmäärana : [bakalaureusetöö] / Katrin Roosmaa ; Tartu Ülikool, õigusteaduskond ; juhendaja: Silvia Kaugia

    Index Scriptorium Estoniae

    Roosmaa, Katrin, 1984-

    2007-01-01

    Surmanuhtluse olemus ja selle karistusliigiga sanktsioneeritud teod Eestis lähiminevikus, surmanuhtluse määramine ja täideviimine kuni 1998. a.-ni, surmanuhtluse kaotamise direktiiv ning seda toetavad ja mittetoetavad riigid, levinumad poolt- ja vastuargumendid, Eesti elanikkonna suhtumine

  17. Novice teachers`professional development across their induction year = Algajate õpetajate professionaalne areng kutseaastal : parim doktoritöö sotsiaalteaduste valdkonnas / Katrin Poom-Valickis

    Index Scriptorium Estoniae

    Poom-Valickis, Katrin, 1969-

    2009-01-01

    Doktoritöö eesmärk oli analüüsida algaja õpetaja professionaalset arengut kutseaastal. Uurimuse ülesanne oli kirjeldada ja analüüsida algaja õpetaja hinnanguid oma kutsealasele arengule ning õpetama õppimise kogemustele esimesel tööaastal

  18. Ettevõtte ühiskondlik vastutus ja huvigruppide kaasamine - ettevõtetes loodava sotsiaalkapitali alus / Katrin Tamm, Triin Noorkõiv

    Index Scriptorium Estoniae

    Tamm, Katrin

    2006-01-01

    Ettevõtte ühiskondlikust vastutusest ja rollist ühiskonnas, sotsiaalkapitali käsitlusest ettevõtete kontekstis, ettevõtte ühiskondliku vastutuse ning huvigruppide kaasamise panusest sotsiaalkapitali suurendamisse. Skeemid. Tabelid

  19. Kartulisortide pikaajaline säilitamine in vitro ja säilikute kasutamise võimalused nišitoodeteks / Viive Rosenberg, Katrin Kotkas

    Index Scriptorium Estoniae

    Rosenberg, Viive, 1943-

    2015-01-01

    In vitro säilitamine võimaldab koguda sorte ja rahvaaretisi, neid pikaajaliselt säilitada väliskeskonna mõjutuste eest kaitstuna ning tagab võimaluse säilikuid paljundada ja kasvatada gurmeesortidena turustamiseks

  20. Näitleja Anti Reinthal : "Kui sa just surnud ei ole, siis mängid lõpuni!" / Katrin Rohtla

    Index Scriptorium Estoniae

    Rohtla, Katrin, 1966-

    2007-01-01

    Viinistu kunstimuuseumis etenduva Eesti Draamateatri suvelavastuse "Sürrealistid" 30. juuni etenduses vigastas näitleja raskelt oma reielihast kuid mängis lõpuni. Lisaks Mait Malmsteni kommentaar "Malmsten : "Esimene vaatus mängiti fantaasia abil" ja vaataja arvamus : "Publiku pettis ära"