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The first tests of a large-area light detector equipped with metallic magnetic calorimeters for scintillating bolometers for the LUMINEU neutrinoless double beta decay search

Future rare-event searches using scintillating crystals need very low background levels for high sensitivity; however, unresolved pile-up can limit this. We present the design and fabrication of large-area photon detectors based on metallic magnetic calorimeters (MMCs), optimized for fast rise times...

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Bibliographic Details
Main Authors: Gray, David (Author) , Enss, Christian (Author) , Fleischmann, Andreas (Author) , Gastaldo, Loredana (Author) , Velte, Clemens (Author) , Hengstler, Daniel (Author) , Kempf, Sebastian (Author) , Loidl, M. (Author) , Navick, X. F. (Author) , Rodrigues, M. (Author)
Format: Article (Journal)
Language:English
Published: 18 February 2016
In: Journal of low temperature physics
Year: 2016, Volume: 184, Issue: 3, Pages: 904-909
ISSN:1573-7357
DOI:10.1007/s10909-016-1535-7
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10909-016-1535-7
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Author Notes:D. Gray, C. Enss, A. Fleischmann, L. Gastaldo, C. Hassel, D. Hengstler, S. Kempf, M. Loidl, X.F. Navick, M. Rodrigues
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Summary:Future rare-event searches using scintillating crystals need very low background levels for high sensitivity; however, unresolved pile-up can limit this. We present the design and fabrication of large-area photon detectors based on metallic magnetic calorimeters (MMCs), optimized for fast rise times to resolve close pile-up. The first prototypes have been characterized using Fe-55 X-rays and ZnMoO$$_{4}$$4crystal scintillation light. A fast intrinsic rise time of 25-30 $$\upmu $$μs has been measured and has been compared to the 250 $$\upmu $$μs scintillation light pulse rise time constant. The difference indicates that the scintillation process limits the light pulse rise time. The fast rise time allows for a reduction of background due to close pile-up events as well as the study of the inherent crystal scintillation process. MMC-based photon detectors are shown to be a promising tool for scintillating crystal based rare event searches.
Item Description:Gesehen am 31.07.2020
Physical Description:Online Resource
ISSN:1573-7357
DOI:10.1007/s10909-016-1535-7

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