A CUPID (Li2MoO4)-Mo-100 scintillating bolometer tested in the CROSS underground facility
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F21%3A00357722" target="_blank" >RIV/68407700:90107/21:00357722 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1748-0221/16/02/P02037" target="_blank" >https://doi.org/10.1088/1748-0221/16/02/P02037</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/16/02/P02037" target="_blank" >10.1088/1748-0221/16/02/P02037</a>
Alternative languages
Result language
angličtina
Original language name
A CUPID (Li2MoO4)-Mo-100 scintillating bolometer tested in the CROSS underground facility
Original language description
A scintillating bolometer based on a large cubic (Li2MoO4)-Mo-100 crystal (45 mm side) and a Ge wafer (scintillation detector) has been operated in the CROSS cryogenic facility at the Canfranc underground laboratory in Spain. The dual-readout detector is a prototype of the technology that will be used in the next-generation 0 nu 2 beta experiment CUPID. The measurements were performed at 18 and 12 mK temperature in a pulse tube dilution refrigerator. This setup utilizes the same technology as the CUORE cryostat that will host CUPID and so represents an accurate estimation of the expected performance. The (Li2MoO4)-Mo-100 bolometer shows a high energy resolution of 6 keV FWHM at the 2615 keV gamma line. The detection of scintillation light for each event triggered by the (Li2MoO4)-Mo-100 bolometer allowed for a full separation (similar to 8 sigma) between gamma(beta) and alpha events above 2 MeV. The (Li2MoO4)-Mo-100 crystal also shows a high internal radiopurity with Th-228 and Ra-226 activities of less than 3 and 8 mu Bq/kg, respectively. Taking also into account the advantage of a more compact and massive detector array, which can be made of cubic-shaped crystals (compared to the cylindrical ones), this test demonstrates the great potential of cubic (Li2MoO4)-Mo-100 scintillating bolometers for high-sensitivity searches for the Mo-100 0 nu 2 beta decay in CROSS and CUPID projects.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
—
Continuities
—
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Instrumentation
ISSN
1748-0221
e-ISSN
1748-0221
Volume of the periodical
16
Issue of the periodical within the volume
2
Country of publishing house
IT - ITALY
Number of pages
19
Pages from-to
1-19
UT code for WoS article
000625188800033
EID of the result in the Scopus database
—