Jun 13 – 19, 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

DEAP-3600 trigger - the needle in the haystack

Jun 16, 2015, 2:15 PM
CCIS 1-140 (University of Alberta)

CCIS 1-140

University of Alberta

Oral (Non-Student) / orale (non-étudiant) Particle Physics / Physique des particules (PPD) T2-8 Cosmic frontier: Dark matter II (PPD) / Frontière cosmique: matière sombre II (PPD)


Ben Smith (TRIUMF)


DEAP-3600 is a dark matter experiment based at SNOLAB. It uses 3600kg of liquid argon as a target, and searches for scintillation light from argon nuclei struck by weakly interacting massive particles (WIMPs). Argon-39 atoms also undergo beta decay, and the recoiling electrons also produce scintillation light. Beta decays are expected to occur at least $10^8$ times as frequently as WIMP interactions, and the DEAP-3600 trigger is critical in filtering out the vast majority of background events, while keeping 100% of signal events. This talk will explain the very flexible trigger scheme that was developed, and will detail the commissioning and optimisation of the system.

Primary author

Ben Smith (TRIUMF)

Presentation materials