Development of the ultra-low background HPGe spectrometer OBELIX at Modane underground laboratory
- NázevTitle
- Development of the ultra-low background HPGe spectrometer OBELIX at Modane underground laboratoryDevelopment of the ultra-low background HPGe spectrometer OBELIX at Modane underground laboratory
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- V.B. Brudanin, V.G. Egorov, R. Hodák, F. Mamedov, E. Rukhadze, I. Štekl
- Klíčová slovaKeywords
- Double-beta decay detectors, spectrometer, Gamma detectors, HPG
- DOIDOI
- 10.1088/1748-0221/12/02/P02004
- Časopis / citaceJournal / citation
- Journal of Instrumentation 12(02), P02004-P02004 (2017) · ISSN 1748-0221
- RokYear
- 2017
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Podzemní laboratoř LSM (Laboratoire Souterrain de Modane, Francie) - český příspěvek do výzkumné infrastruktury evropského významuUnderground laboratory LSM (Laboratoire Souterrain de Modane, Francie) - Czech contribution to research infrastructure of European level
- CitovánoCited by
- 19 (INSPIRE-HEP)
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
A new ultra low-background spectrometer based on a HPGe detector with a sensitive volume of 600 cm3 was developed to investigate rare nuclear processes, such as resonant neutrino-less double electron capture (0νEC/EC) and double beta decay processes (2ν2β−, 2νβ+EC, 2νEC/EC) to the excited states of daughter nuclei. The spectrometer was installed at the Modane underground laboratory (LSM, France, 4800 m w.e.). Sensitivity of the spectrometer and its background were tested. A new method for the efficiency calibration in measurements of low-active samples was developed. The spectrometer was used for the measurements of low active materials and samples. Results obtained in 395 h investigation of resonant 0νEC/EC decay of 106Cd to the 2718 keV and 2741 keV excited states of 106Pd with ~23.2 g of enriched 106Cd and 2ν2β− decay of 100Mo sample with a mass of 2588 g to the 0+, 1130 keV and 2+, 539.5 keV excited states of 100Ru are presented.
A new ultra low-background spectrometer based on a HPGe detector with a sensitive volume of 600 cm3 was developed to investigate rare nuclear processes, such as resonant neutrino-less double electron capture (0νEC/EC) and double beta decay processes (2ν2β−, 2νβ+EC, 2νEC/EC) to the excited states of daughter nuclei. The spectrometer was installed at the Modane underground laboratory (LSM, France, 4800 m w.e.). Sensitivity of the spectrometer and its background were tested. A new method for the efficiency calibration in measurements of low-active samples was developed. The spectrometer was used for the measurements of low active materials and samples. Results obtained in 395 h investigation of resonant 0νEC/EC decay of 106Cd to the 2718 keV and 2741 keV excited states of 106Pd with ~23.2 g of enriched 106Cd and 2ν2β− decay of 100Mo sample with a mass of 2588 g to the 0+, 1130 keV and 2+, 539.5 keV excited states of 100Ru are presented.