TES-Based Light Detectors for the CRESST Direct Dark Matter Search
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10909_2018_Article_1944.pdf
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Author(s)
Rothe, J.
Angloher, G.
Bauer, P.
Bento, A.
Bucci, C.
D’Addabbo, A.
Defay, X.
Erb, A.
Feilitzsch, F. v
Ferreiro Iachellini, N.
Date Issued
May 2018
Journal
Journal of Low Temperature Physics
Publisher
Springer-Verlag
Citation
Rothe, J. et al. “TES-Based Light Detectors for the CRESST Direct Dark Matter Search.” Journal of Low Temperature Physics (May 2018): 1-7 © 2018 The Author(s)
Version
Final published version
Abstract
The CRESST experiment uses cryogenic detectors based on transition-edge sensors to search for dark matter interactions. Each detector module consists of a scintillating CaWO₄ crystal and a silicon-on-sapphire (SOS) light detector which operate in coincidence (phonon-light technique). The 40-mm-diameter SOS disks (2 g mass) used in the data taking campaign of CRESST-II Phase 2 (2014–2016) reached absolute baseline resolutions of σ = 4–7 eV. This is the best performance reported for cryogenic light detectors of this size. Newly developed silicon beaker light detectors (4 cm height, 4 cm diameter, 6 g mass), which cover a large fraction of the target crystal surface, have achieved a baseline resolution of σ = 5.8 eV. First results of further improved light detectors developed for the ongoing low-threshold CRESST-III experiment are presented. Keywords:
Transition-edge sensor; Cryogenic light detector; Direct dark matter search
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/s10909-018-1944-x
