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First results of the experiment to search for double beta decay of 106Cd with 106CdWO4 crystal scintillator in coincidence with four crystals HPGe detector
V. I. Tretyak, P. Belli, R. Bernabei +14
An experiment to search for double beta processes in 106Cd by using cadmium tungstate crystal scintillator enriched in 106Cd (106CdWO4) in coincidence with the four crystals HPGe d…
Radioactive contamination of BaF2 crystal scintillator
O. G. Polischuk, P. Belli, R. Bernabei +8
Barium fluoride (BaF) crystal scintillators are promising detectors to search for double beta decay processes in Ba ( = 2619(3) keV) and Ba ( =…
Purification of molybdenum oxide, growth and characterization of medium size zinc molybdate crystals for the LUMINEU program
V. N. Shlegel, L. Berge, R. S. Boiko +45
The LUMINEU program aims at performing a pilot experiment on neutrinoless double beta decay of 100Mo using radiopure ZnMoO4 crystals operated as scintillating bolometers. Growth of…
Search for 2β decay of 116Cd with the help of enriched 116CdWO4 crystal scintillators
D. V. Poda, A. S. Barabash, P. Belli +18
Cadmium tungstate crystal scintillators enriched in Cd to 82% (CdWO, total mass of 1.2 kg) are used to search for 2 decay of Cd deep undergr…
Rejection of randomly coinciding 2ν2β events in ZnMoO4 scintillating bolometers
D. M. Chernyak, F. A. Danevich, A. Giuliani +5
Random coincidence of 2ν2β decay events could be one of the main sources of background for 0ν2β decay in cryogenic bolometers due to their poor time resolution. Pulse-shape discrim…
Search for Rare Nuclear Decays with HPGe Detectors at the STELLA Facility of the LNGS
P. Belli, R. Bernabei, F. Cappella +20
Results on the search for rare nuclear decays with the ultra low background facility STELLA at the LNGS using gamma ray spectrometry are presented. In particular, the best T1/2 lim…
Development of a Li2MoO4 scintillating bolometer for low background physics
L. Cardani, N. Casali, S. Nagorny +16
We present the performance of a 33 g Li2MoO4 crystal working as a scintillating bolometer. The crystal was tested for more than 400 h in a dilution refrigerator installed in the un…
Search for 2β decays of 96Ru and 104Ru by ultra-low background HPGe gamma spectrometry at LNGS: final results
P. Belli, R. Bernabei, F. Cappella +13
An experiment to search for double beta decay processes in 96Ru and 104Ru, which are accompanied by gamma rays, has been realized in the underground Gran Sasso National Laboratorie…
CdWO4 crystal scintillators from enriched isotopes for double beta decay experiments
D. V. Poda, A. S. Barabash, P. Belli +32
Cadmium tungstate crystal scintillators enriched in 106Cd and 116Cd were developed. The produced scintillators exhibit good optical and scintillation properties, and a low level of…
Random coincidence of decay events as a background source in bolometric decay experiments
D. M. Chernyak, F. A. Danevich, A. Giuliani +3
Two neutrino double decay can create irremovable background even in high energy resolution detectors searching for neutrinoless double decay due to random coincidence of $2…
First search for double-beta decay of 184Os and 192Os
P. Belli, R. Bernabei, F. Cappella +12
A search for double-beta decay of osmium has been realized for the first time with the help of an ultra-low background HPGe gamma detector at the underground Gran Sasso National La…