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arXiv · 1110.2042

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

O. Guillaudin·J. Billard·G. Bosson·O. Bourrion·T. Lamy·F. Mayet·D. Santos·P. Sortais
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Abstract

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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O. Guillaudin, J. Billard, G. Bosson, O. Bourrion, T. Lamy, F. Mayet, D. Santos, P. Sortais. 2011-10-10. Quenching factor measurement in low pressure gas detector for directional dark matter search. https://doi.org/10.1051/eas%2F1253015

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