MIMAC: A Micro-TPC Matrix of Chambers for direct detection of Wimps

The project of a micro-TPC matrix of chambers of 3He and CF4 for direct detection of non-baryonic dark matter is outlined. The privileged properties of 3He are highlighted. The double detection (ionization - projection of tracks) will assure the electron-recoil discrimination. The complementarity of...

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Bibliographic Details
Published in:Journal of physics. Conference series 2007-04, Vol.65 (1), p.012012
Main Authors: Santos, D, Guillaudin, O, Lamy, Th, Mayet, F, Moulin, E
Format: Article
Language:English
Subjects:
Chambers
Dark matter
Ionization
Low pressure
Physics
Pressure dependence
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Summary:The project of a micro-TPC matrix of chambers of 3He and CF4 for direct detection of non-baryonic dark matter is outlined. The privileged properties of 3He are highlighted. The double detection (ionization - projection of tracks) will assure the electron-recoil discrimination. The complementarity of MIMAC for supersymmetric dark matter search with respect to other experiments is illustrated. The modular character of the detector allows to have different gases to get A-dependence. The pressure degreee of freedom gives the possibility to work at high and low pressures. The low pressure regime gives the possibility to get the directionality of the tracks. The first measurements of ionization at very few keVs for 3He in 4He gas are described.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/65/1/012012