A gravity-based mounting approach for large-scale cryogenic calorimeter arrays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90263%2F25%3A00390802" target="_blank" >RIV/68407700:90263/25:00390802 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1140/epjc/s10052-025-14613-z" target="_blank" >https://doi.org/10.1140/epjc/s10052-025-14613-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjc/s10052-025-14613-z" target="_blank" >10.1140/epjc/s10052-025-14613-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A gravity-based mounting approach for large-scale cryogenic calorimeter arrays

Popis výsledku v původním jazyce

Cryogenic calorimeters are among the leading technologies for searching for rare events. The CUPID experiment is exploiting this technology to deploy a tonne-scale detector to search for neutrinoless double-beta decay of Mo-100. The CUPID collaboration proposed an innovative approach to assembling cryogenic calorimeters in a stacked configuration, held in position solely by gravity. This gravity-based assembly method is unprecedented in the field of cryogenic calorimeters and offers several advantages, including relaxed mechanical tolerances and simplified construction. To assess and optimize its performance, we constructed a medium-scale prototype hosting 28 Li2MoO4 crystals and 30 Ge light detectors, both operated as cryogenic calorimeters at the LaboratoriNazionali del Gran Sasso (Italy). Despite an unexpected excess of noise in the light detectors, the results of this test proved (i) a thermal stability better than +/- 0.5mK at 10 mK, (ii) a good energy resolution of Li2MoO4 cryogenic calorimeters, (6.6 +/- 2.2) keV FWHM at 2615 keV, and (iii) a Li2MoO4 light yield measured by the closest light detector of 0.36 keV/MeV, sufficient to guarantee the particle identification requested by CUPID.

Název v anglickém jazyce

A gravity-based mounting approach for large-scale cryogenic calorimeter arrays

Popis výsledku anglicky

Cryogenic calorimeters are among the leading technologies for searching for rare events. The CUPID experiment is exploiting this technology to deploy a tonne-scale detector to search for neutrinoless double-beta decay of Mo-100. The CUPID collaboration proposed an innovative approach to assembling cryogenic calorimeters in a stacked configuration, held in position solely by gravity. This gravity-based assembly method is unprecedented in the field of cryogenic calorimeters and offers several advantages, including relaxed mechanical tolerances and simplified construction. To assess and optimize its performance, we constructed a medium-scale prototype hosting 28 Li2MoO4 crystals and 30 Ge light detectors, both operated as cryogenic calorimeters at the LaboratoriNazionali del Gran Sasso (Italy). Despite an unexpected excess of noise in the light detectors, the results of this test proved (i) a thermal stability better than +/- 0.5mK at 10 mK, (ii) a good energy resolution of Li2MoO4 cryogenic calorimeters, (6.6 +/- 2.2) keV FWHM at 2615 keV, and (iii) a Li2MoO4 light yield measured by the closest light detector of 0.36 keV/MeV, sufficient to guarantee the particle identification requested by CUPID.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Physical Journal C

ISSN

1434-6044

e-ISSN

1434-6052

Svazek periodika

85

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

001574131000001

EID výsledku v databázi Scopus

2-s2.0-105017115781