zero-charge events

moriond.in2p3.fr

zero-charge events

Cryogenic Dark Matter Search

Search for WIMPS using Ge detectors operated at cryogenic

temperature. Simultaneous measurement of charge and

athermal phonons

SuperCDMS Soudan (15 detectors, 9 Kg, in operation)

• 76 mm x 25 mm, 8 phonon + 4 charge channels,

interleaved, use charge and phonon Z partition for

surface events discrimination

• Taking physics data since March 2012, dilution

refrigerator has been at base temperature

continuously

SuperCDMS SNOLAB (R&D, proposed 200kg)

• 100 mm x 33 mm, 12 phonon + 4 charge

channels, interleaved

• Aiming for construction start in 2014

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