MIMAC low energy electron-recoil discrimination measured with fast neutrons

Abstract : MIMAC (MIcro-TPC MAtrix of Chambers) is a directional WIMP Dark Matter detector project. Direct dark matter experiments need a high level of electron/recoil discrimination to search for nuclear recoils produced by WIMP-nucleus elastic scattering. In this paper, we proposed an original method for electron event rejection based on a multivariate analysis applied to experimental data acquired using monochromatic neutron fields. This analysis shows that a $10^{5}$ rejection power is reachable for electron/recoil discrimination. Moreover, the efficiency was estimated by a Monte-Carlo simulation showing that a $10^{5}$ electron rejection power is reached with a 85.1\% nuclear recoil efficiency using the same detector gain that on the detectors running at Modane.
Type de document :
Article dans une revue
Journal of Instrumentation, IOP Publishing, 2016, 11 (08), pp.P08011. 〈10.1088/1748-0221/11/08/P08011〉
Liste complète des métadonnées

http://hal.in2p3.fr/in2p3-01269546
Contributeur : Emmanuelle Vernay <>
Soumis le : vendredi 5 février 2016 - 08:50:29
Dernière modification le : mardi 22 mai 2018 - 21:48:10

Lien texte intégral

Identifiants

Collections

Citation

Q. Riffard, D. Santos, O. Guillaudin, G. Bosson, O. Bourrion, et al.. MIMAC low energy electron-recoil discrimination measured with fast neutrons. Journal of Instrumentation, IOP Publishing, 2016, 11 (08), pp.P08011. 〈10.1088/1748-0221/11/08/P08011〉. 〈in2p3-01269546〉

Partager

Métriques

Consultations de la notice

215