IDM2010

DMTPC: a dark matter detector with directional sensitivity

27 juil. 2010, 11:20

20m

Amphithéatre Dumontet (Montpellier 2 University)

Talk Dark Matter Direct Searches Parallel session : Direct Searches 2

Orateur

Dr James Battat (MIT)

Description

A WIMP detector with directional sensitivity could correlate signal events with astrophysical sources, thereby providing a definitive observable signature of dark matter. Our Dark Matter Time Projection Chamber (DMTPC) collaboration uses a gas-based detector with optical and charge readout to achieve directional sensitivity. We have built a 10-liter prototype detector and operated it in a surface laboratory. The detector consists of two back-to-back time projection chambers enclosed within a vacuum vessel which is filled with CF${}_4$ gas at 75 Torr. I will report on the results from this run, including the first DMTPC limit on the spin-dependent cross-section. In addition, I will describe our next-generation detector, currently under construction, which we will deploy underground at the WIPP facility in New Mexico (1600 m.w.e.).

Documents de présentation

Slides

battat_DMTPC_IDM_2010_online.pdf