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.
@article{arxiv.1110.2042,
title = {Quenching factor measurement in low pressure gas detector for directional dark matter search},
author = {O. Guillaudin and J. Billard and G. Bosson and O. Bourrion and T. Lamy and F. Mayet and D. Santos and P. Sortais},
journal= {arXiv preprint arXiv:1110.2042},
year = {2015}
}
Comments
Proceedings of the 3rd International conference on Directional Detection of Dark Matter (CYGNUS 2011), Aussois, France, 8-10 June 2011