Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 654, Issue 1, Pages 225-232Publisher
ELSEVIER
DOI: 10.1016/j.nima.2011.05.070
Keywords
Silicon photo-multiplier; Anti-Compton veto; Liquid argon; Germanium detectors
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Funding
- DFG [SFB/Transregio 27]
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A proof of concept detector is presented for scintillation light detection in liquid argon using silicon photo-multipliers. The aim of the work is to build an anti-Compton veto for germanium detectors operated directly in liquid argon as in the GERDA experiment. Wavelength shifting fibers are used to collect the scintillation light and to guide it to Multi-Pixel Photon Counters (MPPC). Sufficient light yield was achieved to realize an effective anti-Compton veto. Properties of the MPPC were studied at cryogenic temperatures and are additionally reported. (C) 2011 Elsevier B.V. All rights reserved.
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