A prototype of a directional detector for non-baryonic dark matter search: MIMAC (Micro-TPC Matrix of Chambers)

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Authors
Grignon, C.
Bernard, G.
Billard, J.
Bosson, G.
Bourrion, O.
Guillaudin, O.
Koumeir, C.
Mayet, F.
Santos, D.
Colas, P.
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Abstract
Description
We have developed a micro-tpc using a pixelized bulk micromegas coupled to dedicated acquisition electronics as a read-out allowing to reconstruct the three dimensional track of a few keV recoils. The prototype has been tested with the Amande facility at the IRSN-Cadarache providing monochromatic neutrons. The first results concerning discrimination of a few keV electrons and proton recoils are presented.
Comment: 5 pages, proc. of the 1st International Conference on Micro Pattern Gaseous Detectors MPGD 2009, 12-15 June 2009, Kolympari, Crete, Greece
Keywords
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
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