Jul 26 – 30, 2010
Montpellier 2 University
Europe/Paris timezone

DMTPC: a dark matter detector with directional sensitivity

Jul 27, 2010, 11:20 AM
20m
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE
Talk Dark Matter Direct Searches Parallel session : Direct Searches 2

Speaker

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.).

Primary author

Dr James Battat (MIT)

Co-author

Collaboration DMTPC (MIT, Boston University, Brandeis)

Presentation materials