000145042 001__ 145042
000145042 005__ 20240926122721.0
000145042 0247_ $$2doi$$a10.1088/1748-0221/19/09/P09013
000145042 0248_ $$2sideral$$a139882
000145042 037__ $$aART-2024-139882
000145042 041__ $$aeng
000145042 100__ $$aAvignone, F. T.
000145042 245__ $$aDevelopment of large-volume 130TeO2 bolometers for the CROSS 2ß decay search experiment
000145042 260__ $$c2024
000145042 5203_ $$aWe report on the development of thermal detectors based on large-size tellurium dioxide crystals (45 × 45 × 45 mm), containing tellurium enriched in 130Te to about 91%, for the CROSS double-beta decay experiment. A powder used for the crystals growth was additionally purified by the directional solidification method, resulting in the reduction of the concentration of impurities by a factor 10, to a few ppm of the total concentration of residual elements (the main impurity is Fe). The purest part of the ingot (the first ∼ 200 mm, about 80% of the total length of the cylindrical part of the ingot) was determined by scanning segregation profiles of impurities and used for the 130TeO2 powder production with no evidence of re-contamination. The crystal growth was verified with precursors produced from a powder with natural Te isotopic composition, and two small-size (20 × 20 × 10 mm) samples were tested at a sea-level laboratory showing high bolometric and spectrometric performance together with acceptable 210Po content (below 10 mBq/kg). This growth method was then applied for the production of six large cubic 130TeO2 crystals and 4 of them were taken randomly to be characterized at the Canfranc underground laboratory, in the CROSS-dedicated low-background cryogenic facility. Two 130TeO2 samples were coated with a thin, Script O(100 nm), metal film in form of Al layer (on 4 sides) or AlPd grid (on a single side) to investigate the possibility to tag surface events by pulse-shape discrimination. Similarly to the small natural precursors, large-volume 130TeO2 bolometers show high performance and even better internal purity (210Po activity ∼ 1 mBq/kg, while activities of 228Th and 226Ra are below 0.01 mBq/kg), satisfying requirements for the CROSS and, potentially, next-generation experiments.
000145042 536__ $$9info:eu-repo/grantAgreement/EC/H2020/742345/EU/Cryogenic Rare-event Observatory with Surface Sensitivity/CROSS$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 742345-CROSS
000145042 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000145042 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000145042 700__ $$aBarabash, A. S.
000145042 700__ $$aBerest, V.
000145042 700__ $$aBergé, L.
000145042 700__ $$aCalvo-Mozota, J. M.
000145042 700__ $$aCarniti, P.
000145042 700__ $$aChapellier, M.
000145042 700__ $$aDafinei, I.
000145042 700__ $$aDanevich, F. A.
000145042 700__ $$aDumoulin, L.
000145042 700__ $$aFerella, F.
000145042 700__ $$aFerri, F.
000145042 700__ $$aGallas, A.
000145042 700__ $$aGiuliani, A.
000145042 700__ $$aGotti, C.
000145042 700__ $$aGras, P.
000145042 700__ $$aIanni, A.
000145042 700__ $$aImbert, L.
000145042 700__ $$aKhalife, H.
000145042 700__ $$aKobychev, V. V.
000145042 700__ $$aKonovalov, S. I.
000145042 700__ $$aLoaiza, P.
000145042 700__ $$ade Marcillac, P.
000145042 700__ $$aMarnieros, S.
000145042 700__ $$aMarrache-Kikuchi, C. A.
000145042 700__ $$0(orcid)0000-0002-9043-4691$$aMartinez, M.$$uUniversidad de Zaragoza
000145042 700__ $$aNisi, S.
000145042 700__ $$aNones, C.
000145042 700__ $$aOlivieri, E.
000145042 700__ $$0(orcid)0000-0001-8278-6032$$aOrtiz de Solórzano, A.$$uUniversidad de Zaragoza
000145042 700__ $$aPeinaud, Y.
000145042 700__ $$aPessina, G.
000145042 700__ $$aPoda, D. V.
000145042 700__ $$aRosier, Ph.
000145042 700__ $$aScarpaci, J. A.
000145042 700__ $$aTretyak, V. I.
000145042 700__ $$aUmatov, V. I.
000145042 700__ $$aZarytskyy, M. M.
000145042 700__ $$aZolotarova, A.
000145042 7102_ $$12004$$2X$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Técnica. Lab. y Talleres
000145042 7102_ $$12004$$2390$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Atóm.Molec.y Nucl.
000145042 773__ $$g19, 09 (2024), P09013 [23 pp.]$$pJournal of Instrumentation$$tJournal of Instrumentation$$x1748-0221
000145042 8564_ $$s5061479$$uhttps://zaguan.unizar.es/record/145042/files/texto_completo.pdf$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2025-09-09
000145042 8564_ $$s1673094$$uhttps://zaguan.unizar.es/record/145042/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada$$zinfo:eu-repo/date/embargoEnd/2025-09-09
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000145042 951__ $$a2024-09-26-10:58:17
000145042 980__ $$aARTICLE