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Quenching factor measurement in low pressure gas detector for directional dark matter search

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 نشر من قبل Olivier Guillaudin
 تاريخ النشر 2011
  مجال البحث فيزياء
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 تأليف O. Guillaudin




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There is considerable experimental effort dedicated to the directional detection of particle dark matter. Gaseous mu-TPC detectors present the privileged features of being able to reconstruct the track and the energy of the recoil nucleus following the interaction. A precise measurement of the recoil energy is a key point for the directional search strategy. Quenching has to be taken into account, i.e. only a certain fraction of the recoil energy is deposited in the ionization channel. Measurements of the ionization quenching factor for different gas mixture at room temperature have been made with a dedicated ion beam facility at the LPSC of Grenoble.



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