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Improvements to the resolution and efficiency of the DEAP-3600 dark matter detector and their effects on background studies Open Access


Other title
dark matter, scintillation, pmt, liquid argon
Type of item
Degree grantor
University of Alberta
Author or creator
Olsen, Kevin Sutherland
Supervisor and department
Hallin, Aksel (Physics)
Examining committee member and department
Heinke, Craig (Physics)
Krauss, Carsten (Physics)
McQuarrie, Steve (Oncology)
Department of Physics

Date accepted
Graduation date
Master of Science
Degree level
The Dark matter Experiment using Argon Pulse-shape discrimination will be a tonne scale liquid argon experiment to detect scintillation light produced by interactions with weakly interacting massive particles, leading dark matter candidates. The detector will be constructed out of acrylic and use a spherical array of 266 photo-multiplier tubes (PMTs) to count photons produced by an event and will use properties of liquid argon to discriminate signals from background events. There is currently a smaller prototype in operation underground at SNOLAB an underground laboratory in eastern Canada. The goal of the prototype detector is to understand the sources of background signals in a detector of our design and to validate our method of distinguishing different types of background radiation. The work presented herein is a series of studies with the common goal of understanding the source of background signals, and improving the resolution and efficiency of the detector.
License granted by Kevin Olsen ( on 2010-09-27T18:25:15Z (GMT): Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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