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A compact scintillator-based detector for high energy neutron spectrometry.

Authors :
Buffler, Andy
Hutton, Tanya
Jarvie, Erin
Babut, Richard
Source :
Radiation Physics & Chemistry. Jul2024, Vol. 220, pN.PAG-N.PAG. 1p.
Publication Year :
2024

Abstract

A compact neutron spectrometer consisting of a 6 mm × 6 mm × 120 mm prism of EJ-276 plastic scintillator capable of pulse shape discrimination coupled to a single silicon photomultiplier is described. In principle this device will be capable of spectroscopic measurements exceeding 100 MeV using unfolding analyses with detector response functions measured at neutron time-of-flight facilities. A characterisation of the device is described and illustrated with measurements of the detector response made at three fast neutron facilities with energies between 5.0 MeV and 63.5 MeV. Nearly mono-energetic detector response functions were used to produce neutron energy spectra by unfolding light output distributions measured with the detector in the energy range of interest. • A compact high energy neutron detector was developed featuring EJ-276 scintillator and a single silicon photomultiplier. • The device features excellent pulse shape discrimination to select neutron events from gamma ray events. • The device was characterised in a cyclotron facility with high energy neutrons, selected by time-of-flight. • Excellent spectrometry is achieved through unfolding using measured response functions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0969806X
Volume :
220
Database :
Academic Search Index
Journal :
Radiation Physics & Chemistry
Publication Type :
Academic Journal
Accession number :
176500468
Full Text :
https://doi.org/10.1016/j.radphyschem.2024.111698