Neutron/gamma pulse shape discrimination in EJ-299-34 at high flux
- Resource Type
- Conference
- Authors
- Payne, Christopher; Sellin, Paul J.; Ellis, Mark; Duroe, Kirk; Jones, Ashley; Joyce, Malcolm; Randall, George; Speller, Robert
- Source
- 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2015 IEEE. :1-5 Oct, 2015
- Subject
- Bioengineering
Components, Circuits, Devices and Systems
Nuclear Engineering
Signal Processing and Analysis
Detectors
Shape
Geometry
Photonics
Neutrons
Logic gates
- Language
The effect of scintillator geometry on the quality of neutron/γ pulse shape discrimination (PSD) in EJ-299 plastic scintillator, using a digital charge integration PSD algorithm has been studied. It is shown that the PSD Figure of Merit (FOM) reduces as the geometry of the scintillator moves from a cube-like shape towards a flat panel shape. The PSD performance in this material at high flux irradiation is investigated with performance deteriorating at rates of ∼10 7 photons/s. The use of EJ-299 for security applications, with a focus on active interrogation environments is explored in conjunction with a system capable of neutron/γ separation and localisation.