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Low-background Multi-HPGe Spectrometer TGV II used for the study of double electron capture of Cd-106
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SYSNO ASEP 0339539 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Low-background Multi-HPGe Spectrometer TGV II used for the study of double electron capture of Cd-106 Author(s) Štekl, I. (CZ)
Bocarov, V. (CZ)
Briancon, Ch. (FR)
Brudanin, V. B. (RU)
Čermák, P. (CZ)
Egorov, V. G. (RU)
Klimenko, A. A. (RU)
Kovalík, Alojz (UJF-V) RID, ORCID, SAI
Mamedov, F. (RU)
Rukhadze, N. I. (RU)
Sandukovski, V. G. (RU)
Shitov, Yu. A. (RU)
Simkovic, F. (SK)
Timkin, V. V. (RU)
Vylov, Ts. (RU)
Zinatulina, D. R. (RU)Number of authors 16 Source Title 2008 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (2008 NSS/MIC), VOLS 1-9. - NEW YORK : IEEE, 2009 - ISSN 1082-3654 - ISBN 978-1-4244-2714-7 Pages s. 1074-1076 Number of pages 3 s. Action IEEE Nuclear Science Symposium/Medical Imaging Conference Event date 19.10.2008-25.10.2008 VEvent location Dresden Country DE - Germany Event type WRD Language eng - English Country US - United States Keywords DOUBLE-BETA-DECAY ; DOUBLE-ELECTRON-CAPTURE ; Cd-106 Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders R&D Projects LA08002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LC07050 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000268656000228 Annotation The TGV II (Telescope Germanium Vertical) facility is a low background spectrometer operated in Modane Underground Laboratory (France). It aims at the study of double beta electron capture of Cd-106. The spectrometer is composed of 32 HPGe planar detectors (total mass of Ge similar to 3 kg) interleaved with thin-foil samples made of enriched Cd-106. In 2007 the Phase I of the experiment (1 year measurement) was finished and the new limit on half-life for two-neutrino double electron capture (g.s. -> g.s.) of Cd-106 was obtained as 3.2 x 10(20) years. This limit is significantly higher (by almost three orders of magnitude) than those already published. From December 2007 the Phase II of the experiment continues with more enriched material (13.6 grams instead of 8 grams) and with significantly suppressed background of the cryostat. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2010
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