8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

Rejection of Backgrounds in the DMTPC Dark Matter Search Using Charge Signals

12 Aug 2011, 08:20
556 (Rhode Island Convention Center)


Rhode Island Convention Center

Parallel contribution Particle Astrophysics and Cosmology Particle Astrophysics and Cosmology


Mr Jeremy Lopez (MIT)


The Dark Matter Time Projection Chamber (DMTPC) experiment uses a time projection chamber filled with low pressure CF4 gas to detect the direction of WIMP-induced nuclear recoils. Recoils from WIMPs in the galactic dark matter halo are expected to have a directional signal distinct from all known backgrounds. Recent work has been done to develop instrumentation to read out both the scintillation and charge signals from the TPC. This talk will describe the charge readout systems of the DMTPC detector and will discuss their performance in identifying nuclear recoils and rejecting gamma and electron backgrounds.

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