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arXiv · 1906.03878

Fast neutron spectroscopy from 1 MeV up to 15 MeV with Mimac-FastN, a mobile and directional fast neutron spectrometer

Nadine Sauzet·Daniel Santos·Olivier Guillaudin·Germain Bosson·Joël Bouvier·Thierry Descombes·Marc Marton·Jean-François Muraz
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Abstract

In the frame of direct dark matter search, the fast neutrons producing elastic collisions are the ultimate background. The MIMAC (MIcro-tpc MAtrix Chambers) project has developed a directional detector providing the directional signature to discriminate them based on 3D nuclear tracks reconstruction. The MIMAC team of the LPSC has adapted one MIMAC chamber as a portable fast neutron spectrometer, the Mimac-FastN detector, having a very large neutron energy range (10 keV - 600 MeV) with different gas mixtures and pressures. The present paper shows its main features and functionality and demonstrates its potential in the energy range from 1 MeV to 15 MeV at the GENESIS neutron source facility of LPSC.

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Nadine Sauzet, Daniel Santos, Olivier Guillaudin, Germain Bosson, Joël Bouvier, Thierry Descombes, Marc Marton, Jean-François Muraz. 2020-03-12. Fast neutron spectroscopy from 1 MeV up to 15 MeV with Mimac-FastN, a mobile and directional fast neutron spectrometer. https://doi.org/10.1016/j.nima.2020.163799

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