Demonstrates improved neutron detection in cerium bromide, suggesting practical applications in radiation monitoring.
Cerium bromide (CeBr 3 ) is an inorganic scintillator offering high scintillation yield, fast decay time, and high energy resolution for γ -ray detection. Unlike similar lanthanide halide materials, CeBr 3 exhibits no particle separation via charge-integral pulse shape discrimination. In this work, we demonstrate the implementation of an advanced waveform-analysis method on scintillation signals from CeBr 3 arising from internal α -particle contamination and 15.2 MeV monoenergetic neutrons. This method successfully separates the γ -ray, proton, and α -particle contributions, achieving a figure of merit up to 1.36. These results show that proton and α signals from fast neutron interactions can be removed from CeBr 3 γ -ray spectra, and that CeBr 3 could have utility for the detection of fast neutrons.
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O’Neill et al. (2026) studied this question.
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