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