Experimental evaluation demonstrates effective pulse shape discrimination in an EJ276 scintillator, indicating viable neutron spectrometry in mixed radiation fields.
In this study, research on a series of characteristics was conducted using an EJ276 plastic scintillation detector. Good pulse shape discrimination has been obtained using a 241 Am–Be radioactive source, and the figure of merit is 1.27. The Birks function was determined through gamma-ray energy calibration, neutron energy calibration, light output resolution function calibration, and GEANT4 Monte Carlo simulation. Finally, the Unfolding based on Genetic Algorithm software was used to solve the neutron spectrum of the 241 Am–Be source, and the measurement error of the neutron fluence rate was calculated to be −22.0%.
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Qin et al. (2026) studied this question.
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