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

DMTPC: a dark matter detector with directional sensitivity

Jul 27, 2010, 11:20 AM
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


Dr James Battat (MIT)


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)


Collaboration DMTPC (MIT, Boston University, Brandeis)

Presentation materials