Apr 15 – 16, 2019
University of Surrey
Europe/London timezone

NESSY – A prototype Neutron Energy Spectrometer for Security

Apr 15, 2019, 5:30 PM
University of Surrey

University of Surrey

Guildford, UK


Adam Maxfield (Sheffield Hallam University)


A liquid scintillator fast neutron detector has been built at Sheffield Hallam University, which can improve neutron spectrometry for homeland security. This ambitious project utilises an EJ-331 (gadolinium loaded liquid scintillator), which permits differentiation between neutron, gamma and charged particle radiation, and allows the energy of the incident radiation to be determined. The geometry of the detector and dual photomultiplier tube set-up has been designed such that the position of incident radiation can be determined using precision timing. The set-up will be used with a digital pulse processing unit to perform timing and pulse shape discrimination measurements.

Primary authors

Adam Maxfield (Sheffield Hallam University) Carl Wheldon (University of Birmingham) Robin Smith (Sheffield Hallam University) Tzany Kokalova (University of Birmingham)

Presentation materials