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First results on light readout from the 1-ton ArDM liquid argon detector for dark matter searches


ArDM Collaboration; et al; Amsler, C; Badertscher, A; Boccone, V; Creus, W; Curioni, A; Degunda, U; Gendotti, A; Epprecht, L; Horikawa, S; Kaufmann, L; Knecht, L; Laffranchi, M; Lazzaro, C; Lussi, D; Marchionni, A; Natterer, G; Otyugova, P; Regenfus, C; Resnati, F; Rochet, J; Rubbia, A; Scotto-Lavina, L; Strauss, T; Ulbricht, J; Viant, T (2010). First results on light readout from the 1-ton ArDM liquid argon detector for dark matter searches. Journal of Instrumentation, 5(11):P11003.

Abstract

ArDM-1t is the prototype for a next generation WIMP detector measuring both the scintillation light and the ionization charge from nuclear recoils in a 1-ton liquid argon target. The goal is to reach a minimum recoil energy of 30 keVr to detect recoiling nuclei. In this paper we describe the experimental concept and present results on the light detection system, tested for the first time in ArDM on the surface at CERN. With a preliminary and incomplete set of PMTs, the light yield at zero electric field is found to be between 0.3-0.5 phe/keVee depending on the position within the detector volume, confirming our expectations based on smaller detector setups.

ArDM-1t is the prototype for a next generation WIMP detector measuring both the scintillation light and the ionization charge from nuclear recoils in a 1-ton liquid argon target. The goal is to reach a minimum recoil energy of 30 keVr to detect recoiling nuclei. In this paper we describe the experimental concept and present results on the light detection system, tested for the first time in ArDM on the surface at CERN. With a preliminary and incomplete set of PMTs, the light yield at zero electric field is found to be between 0.3-0.5 phe/keVee depending on the position within the detector volume, confirming our expectations based on smaller detector setups.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2010
Deposited On:14 Feb 2011 17:39
Last Modified:05 Apr 2016 14:46
Publisher:Institute of Physics Publishing
ISSN:1748-0221
Publisher DOI:https://doi.org/10.1088/1748-0221/5/11/P11003
Related URLs:http://arxiv.org/abs/1009.3641
Permanent URL: https://doi.org/10.5167/uzh-45442

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