Time-of-Flight Spectroscopy of 252 Cf Spontaneous Fission Neutrons : Influences of Detector Voltage, Pulse-Shape Discrimination and Shielding

Grievson, Alex and Taylor, C. James and Roberts, Neil J. and Bunce, Mike and Joyce, Malcolm (2021) Time-of-Flight Spectroscopy of 252 Cf Spontaneous Fission Neutrons : Influences of Detector Voltage, Pulse-Shape Discrimination and Shielding. In: 2020 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) :. IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) . IEEE. ISBN 9781728176949

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Abstract

Experimental measurements to explore the effect of detector voltage, pulse-shape discrimination (PSD) threshold and detector shielding on time-of-flight measurements of the 252Cf neutron spectrum made with organic scintillation detectors are described. It is found that detector voltage has a major effect, whilst changing the PSD threshold and shielding the detectors to optimize sensitivity to the desired gamma-neutron correlation results in a small effect.