Investigations of 2β decay of {sup 106}Cd and {sup 58}Ni with HPGe spectrometer OBELIX

Journal Article · Mon Aug 17 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4928015· OSTI ID:22488729

Rukhadze, E.; Fajt, L.; Hodák, R.; Špavorová, M.; Štekl, I. ^[1]; Brudanin, V.; Klimenko, A.; Kochetov, O.; Rozov, S.; Rukhadze, N.; Shitov, Yu.; Yakushev, E. ^[2]; Loaiza, P. ^[3]; Piquemal, F.; Zampaolo, M. ^[3]

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1. Institute of Experimental and Applied Physics, CTU in Prague, Horska 3a/22, 128 00 Prague 2 (Czech Republic)
2. Joint Institute of Nuclear Research, 141980 Dubna (Russian Federation)
3. Laboratoire Souterrain de Modane, 73500 Modane (France)

Investigations of double beta decay processes to excited states of daughter nuclei were performed at the Modane underground laboratory (LSM, France, 4800 m w.e.) using the high sensitivity spectrometer OBELIX [1], which is a common activity of JINR Dubna, IEAP CTU in Prague and LSM. The spectrometer is based on the HPGe detector with the sensitive volume of 600 cm{sup 3} and relative efficiency of 160%. Investigation of resonant neutrino-less double electron capture of {sup 106}Cd was performed with ∼23.2 g of {sup 106}Cd (enrichment of 99.57%) during ∼17 days. The experiment with natural Ni (∼21.7 kg of mass) was also carried out during ∼47 days. The preliminary experimental limits for 0νEC/EC resonant decay to the excited states of {sup 106}Pd and different modes of β β decay {sup 58}Ni are presented.

• OSTI ID: 22488729
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1672; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CADMIUM 106
DOUBLE BETA DECAY
ELECTRON CAPTURE
EXCITED STATES
FRANCE
HIGH-PURITY GE DETECTORS
JINR
MULTIPARTICLE SPECTROMETERS
NEUTRINOS
NICKEL 58
PALLADIUM 106
SENSITIVITY
UNDERGROUND