TES-Based Light Detectors for the CRESST Direct Dark Matter Search

J. Rothe, G. Angloher, P. Bauer, A. Bento, C. Bucci, L. Canonica, A. D’Addabbo, X. Defay, A. Erb, F. v. Feilitzsch, N. Ferreiro Iachellini, P. Gorla, A. Gütlein, D. Hauff, J. Jochum, M. Kiefer, H. Kluck, H. Kraus, J. C. Lanfranchi, A. LangenkämperJ. Loebell, M. Mancuso, E. Mondragon, A. Münster, C. Pagliarone, F. Petricca, W. Potzel, F. Pröbst, R. Puig, F. Reindl, K. Schäffner, J. Schieck, V. Schipperges, S. Schönert, W. Seidel, M. Stahlberg, L. Stodolsky, C. Strandhagen, R. Strauss, A. Tanzke, H. H. Trinh Thi, C. Türkoğlu, A. Ulrich, I. Usherov, S. Wawoczny, M. Willers, M. Wüstrich

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

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=5.8eV. First results of further improved light detectors developed for the ongoing low-threshold CRESST-III experiment are presented.

Original languageEnglish
Pages (from-to)1160-1166
Number of pages7
JournalJournal of Low Temperature Physics
Volume193
Issue number5-6
DOIs
StatePublished - 1 Dec 2018

Keywords

  • Cryogenic light detector
  • Direct dark matter search
  • Transition-edge sensor

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