Development of Mo-100-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90072%2F17%3A00344148" target="_blank" >RIV/68407700:90072/17:00344148 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-017-5343-2" target="_blank" >https://doi.org/10.1140/epjc/s10052-017-5343-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-017-5343-2" target="_blank" >10.1140/epjc/s10052-017-5343-2</a>
Alternative languages
Result language
angličtina
Original language name
Development of Mo-100-containing scintillating bolometers for a high-sensitivity neutrinoless double-beta decay search
Original language description
This paper reports on the development of a technology involving Mo-100-enriched scintillating bolometers, compatible with the goals of CUPID, a proposed next-generation bolometric experiment to search for neutrinoless double-beta decay. Large mass (similar to 1 kg), high optical quality, radiopure Mo-100-containing zinc and lithium molybdate crystals have been produced and used to develop high performance single detector modules based on 0.2-0.4 kg scintillating bolometers. In particular, the energy resolution of the lithium molybdate detectors near the Q-value of the double-beta transition of Mo-100 (3034 keV) is 4-6 keV FWHM. The rejection of the a-induced dominant background above 2.6 MeV is better than 8 sigma. Less than 10 mu Bq/kg activity of Th-232 (Th-228) and Ra-226 in the crystals is ensured by boule recrystallization. The potential of Mo-100-enriched scintillating bolometers to perform high sensitivity double-beta decay-searches has been demonstrated with only 10 kg x d exposure: the two neutrino double-beta decay half-life of Mo-100 has been measured with the up-to-date highest accuracy as T-1/2 = [6.90 +/- 0.15(stat.) +/- 0.37(syst.)] x 10(18) years. Both crystallization and detector technologies favor lithium molybdate, which has been selected for the ongoing construction of the CUPID-0/Mo demonstrator, containing several kg of Mo-100.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
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Continuities
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Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
77
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
25
Pages from-to
1-25
UT code for WoS article
000416366100002
EID of the result in the Scopus database
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