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Development of MMC-based lithium molybdate cryogenic calorimeters for AMoRE-II

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The AMoRE collaboration searches for neutrinoless double beta decay of $$^{100}$$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, th...

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Hauptverfasser: Agrawal, Aman (VerfasserIn) , Enss, Christian (VerfasserIn) , Fleischmann, Andreas (VerfasserIn) , Gastaldo, Loredana (VerfasserIn) , Kempf, Sebastian (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 11 February 2025
In: The European physical journal. C, Particles and fields
Year: 2025, Jahrgang: 85, Heft: 2, Pages: 1-13
ISSN:1434-6052
DOI:10.1140/epjc/s10052-024-13498-8
Online-Zugang:Verlag, kostenfrei, Volltext: https://doi.org/10.1140/epjc/s10052-024-13498-8
Volltext
Verfasserangaben:AMoRE Collaboration*
Beschreibung
Zusammenfassung:The AMoRE collaboration searches for neutrinoless double beta decay of $$^{100}$$Mo using molybdate scintillating crystals via low temperature thermal calorimetric detection. The early phases of the experiment, AMoRE-pilot and AMoRE-I, have demonstrated competitive discovery potential. Presently, the AMoRE-II experiment, featuring a large detector array with about 90 kg of $$^{100}$$Mo isotope, is under construction. This paper discusses the baseline design and characterization of the lithium molybdate cryogenic calorimeters to be used in the AMoRE-II detector modules. The results from prototype setups that incorporate new housing structures and two different crystal masses (316 g and 517-521 g), operated at 10 mK temperature, show energy resolutions (FWHM) of 7.55-8.82 keV at the 2.615 MeV $$^{208}$$Tl $$\gamma $$line and effective light detection of 0.79-0.96 keV/MeV. The simultaneous heat and light detection enables clear separation of alpha particles with a discrimination power of 12.37-19.50 at the energy region around $$^{6}$$Li$$(n,\alpha )^3
Beschreibung:Veröffentlicht: 11. Februar 2025
*AMoRE Collaboration: A. Agrawal, C. Enss, A. Fleischmann, L. Gastaldo, S. Kempf [und 103 weitere Personen]
Gesehen am 08.10.2025
Beschreibung:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-024-13498-8

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