The DEAP/CLEAN experiment will search for dark matter particle interactions on
liquid argon at SNOLAB. The
first
generation detector (DEAP-1) with a 7-kg liquid argon target mass is currently
operating underground at SNOLAB
and an overview of that experiment, including pulse-shape discrimination (PSD)
results for reducing β/γ
backgrounds, and the status of data collection at SNOLAB, will be presented. A
larger detector (DEAP/CLEAN-
3600)
containing a total of 3600 kg of liquid argon is currently being designed, with a
target sensitivity to spin-
independent scattering on nucleons of
10-46 cm2, several hundred times more sensitive than current dark matter
experiments. Initial construction
activities are planned for SNOLAB beginning in 2008. The design and
construction status of DEAP/CLEAN-3600
will
be presented. |