Preprint
Innovating Bolometers' Mounting: A Gravity-Based Approach
06 Mar 2025
Abstract
Cryogenic calorimeters, also known as bolometers, 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 $^{100}$Mo. The CUPID collaboration proposed an innovative
approach to assembling bolometers in a stacked configuration, held in position
solely by gravity. This gravity-based assembly method is unprecedented in the
field of bolometers 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 Li$_2$MoO$_4$ crystals and
30 Ge light detectors, both operated as cryogenic calorimeters at the
Laboratori Nazionali 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 $\pm$0.5 mK at 10 mK, (ii) a good energy resolution of
Li$_2$MoO$_4$ bolometers, (6.6 $\pm$ 2.2) keV FWHM at 2615 keV, and (iii) a
Li$_2$MoO$_4$ light yield measured by the closest light detector of 0.36
keV/MeV, sufficient to guarantee the particle identification requested by
CUPID.
Metrics
4 Record Views
Details
- Title
- Innovating Bolometers' Mounting: A Gravity-Based Approach
- Creators
- The CUPID CollaborationK AlfonsoA ArmatolC AugierF. T AvignoneIIIO AzzoliniA. S BarabashG BariA BarresiD BaudinF BelliniG BenatoL BenussiV BerestM BerettaM BettelliM BiassoniJ BillardF BoffelliV BoldriniE. D BrandaniC BrofferioC BucciM BuchynskaJ CamilleriA CampaniJ CaoC CapelliS CapelliV CaraccioloL CardaniP CarnitiN CasaliE CeliC ChangM ChapellierH ChenD ChiesaD CintasM ClemenzaI ColantoniS CopelloO CremonesiR. J CreswickA D'AddabboI DafineiF. A DanevichF De DominicisM De JesusP de MarcillacS Dell'OroS Di DomizioS Di LorenzoV DompèA DrobizhevL DumoulinG FantiniM. El IdrissiM FaverzaniE FerriF FerriF FerroniE Figueroa-FelicianoJ FormaggioA FranceschiS FuB. K FujikawaJ GasconS GhislandiA GiacheroM GirolaL GironiA GiulianiP GorlaC GottiC GrantP GrasP. V GuillaumonT. D GutierrezK HanE. V HansenK. M HeegerD. L HelisH. Z HuangM. T HurstL ImbertA JuillardG KarapetrovG KeppelH KhalifeV. V KobychevYu. G KolomenskyR KowalskiH LattaudM LefevreM LisovenkoR LiuY LiuP LoaizaL MaF MancarellaN ManentiA MarianiL MariniS MarnierosM MartinezR. H MaruyamaPh MasD MayerG MazzitelliE MazzolaY MeiM. N MooreS MorgantiT NapolitanoM NastasiJ NikkelC NonesE. B NormanV NovosadI NutiniT O'DonnellE OlivieriM OlmiB. T OreguiS PaganM PageotL PagnaniniD PasciutoL PattavinaM PavanÒ PenekH PengG PessinaV PettinacciC PiraS PirroO PochonD. V PodaT PolakovicO. G PolischukE. G PottebaumS PozziE PrevitaliA PuiuS PuranamS QuitadamoA RappoldiG. L RaselliA RessaR RizzoliC RosenfeldP RosierM RossellaJ. A ScarpaciB SchmidtR SerinoA ShaikinaK ShangV SharmaV. N ShlegelV SinghM SistiP SlocumD SpellerP. T SurukuchiL TaffarelloS TomassiniC TomeiA TorresJ. A TorresD TozziV. I TretyakD TrottaM VelazquezK. J VetterS. L WagaarachchiG WangL WangR WangB WelliverJ WilsonK WilsonL. A WinslowF XieM XueJ YangV YefremenkoV. I UmatovM. M ZarytskyyT ZhuA ZolotarovaS Zucchelli
- Resource Type
- Preprint
- Language
- English
- Academic Unit
- Accelerated Career Entry Bachelor of Science in Nursing (BSN); Physics
- Other Identifier
- 991022040298604721