Browsing Physics, Engineering Physics and Astronomy, Department of by Author "Boulay, Mark Guy"
Now showing items 1-8 of 8
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Alpha backgrounds in the DEAP dark matter search experiment.
Pollmann, Tina (2012-08-10)One of the pressing concerns in Dark Matter detection experiments is ensuring that the potential signal from exceedingly rare Dark Matter interactions is not obscured by background from interactions with more common ... -
Characterization of Pulse–Shape Discrimination for Background Reduction in the DEAP-1 Detector
Pasuthip, Paradorn (2009-02-02)DEAP (Dark Matter Experiment with Argon and Pulse Shape Discrimination) is an experiment that aims to directly detect dark matter particles via nuclear recoils in liquid argon. The experiment uses the scintillation ... -
Identification and Reduction of the Alpha Background, From 238U and 232Th Decay Chains, in the DEAP-3600 Experiment.
Giampa, PietroDifferent cosmological and astronomical observations from the past century indicate that non-baryonic matter, commonly referred to as dark matter, dominates the composition of the universe. Discovering the nature and ... -
On the Development of the Wavelength Shifter Deposition System for the DEAP-3600 Dark Matter Search Experiment
Broerman, Benjamin (2015-11-03)The DEAP-3600 dark matter search experiment uses 3600 kilograms of liquid argon as a target medium contained in a spherical acrylic vessel. Particle interactions in liquid argon produce vacuum ultraviolet light at a peak ... -
Pulse shape discrimination studies in liquid argon for the DEAP-1 detector
Lidgard, Jeffrey Jack (2008-04-25)A detector with a target mass of 7 kg of liquid argon was designed, constructed and operated at Queen’s University. This detector is a scaled model for the DEAP project toward a tonne-scale argon detector to search for the ... -
Radiopurity measurement of acrylic for the DEAP-3600 dark matter experiment
Nantais, Corina (2014-01-16)The liquid argon target of the DEAP-3600 dark matter detector is contained by an extremely radiopure acrylic vessel. Alpha decays from the inner surface of the acrylic vessel are a source of background. If a fraction of ... -
Radioreduction and Radiopurity of Acrylic in the DEAP-3600 Dark Matter Experiment
Bonatt, JoshuaThe DEAP-3600 experiment is a single-phase liquid argon dark matter detector employing pulse discrimination to mitigate background-like events and isolate WIMP-like events. The vessel that holds 3600~kg of target, and the ... -
Radon Background Reduction in DEAP-1 and DEAP-3600
O'Dwyer, Eoin (2011-01-10)The Dark Matter Experiment with Liquid Argon Using Pulse Shape Discrim- ination (DEAP) is a dark matter experiment based in the SNOLAB facility in Sudbury, Ontario. Its aim is to detect WIMPs, Weakly Interacting Massive ...