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Neutron hardness of EJ-276 scintillation material

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arxiv 2010.07981 v1 pith:FVTO2VTE submitted 2020-10-15 physics.ins-det hep-exnucl-ex

Neutron hardness of EJ-276 scintillation material

classification physics.ins-det hep-exnucl-ex
keywords neutrontimesdifferentdiscriminationej-276gammaintegrationirradiation
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This paper presents the results of the fast neutron irradiation (E$_n$ > 0.5MeV) of an EJ-276 scintillator performed in the MARIA research reactor with fluence up to 5.3$\times$10$^{15}$ particles/cm$^2$. In our work, four samples with size $\phi$25.4~mm$\times$5~mm were tested. The changes in the light yield, emission and absorption spectrum and neutron/gamma discrimination using PuBe source before and after irradiation are presented. The figure of merit in neutron/gamma discrimination based on the charge integration method for different neutron fluences and different short gate integration times are determined.

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