Abstract

The CLYC-7 scintillators (Cs2LiYCl6) are being studied for their capability to detect and discriminate both γ-ray radiation and neutrons in a wide energy range. Different Pulse-Shape Analysis (PSA) techniques were developed to perform this distinction, with excellent results. An intrinsic problem resides in the neutron detection mechanism, which occurs mainly via two nuclear reactions on the chlorine nucleus: 35Cl(n,p)35S and 35Cl(n,α)32P. In the latter, the neutron energy reconstruction turns out to be more difficult, due to the large variety of excited states (and therefore reaction Q values) of 32P. A particular PSA algorithm was investigated to perform this α background rejection, with interesting results in different energy ranges.

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