Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 574, Issue 3, Pages 493-499Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2007.01.090
Keywords
two-phase avalanche detectors; gas electron multipliers; liquid argon; single electron counting; coherent neutrino scattering; dark matter
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The performance of a two-phase Ar avalanche detector in a single electron counting mode was studied, with regard to potential application in coherent neutrino-nucleus scattering and dark matter search experiments. The detector comprised a 1 cm thick liquid Ar layer and a triple-GEM multiplier operated in the saturated vapour above the liquid phase. Successful operation of the detector in single electron Counting mode, in the gain range from 6000 to 40,000, has for the first time been demonstrated. (C) 2007 Elsevier B.V. All rights reserved.
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