21-25 June 2021
Clarion Congress Hotel Prague
Europe/Prague timezone
Proceedings of the ANIMMA 2021 conference are now available online in open access: https://www.epj-conferences.org/animma-2021

#11-231 Regional variation in neutron/gamma pulse-shape discrimination in an organic scintillator

23 Jun 2021, 16:25
5m
MERIDIAN (Clarion Congress Hotel Prague)

MERIDIAN

Clarion Congress Hotel Prague

Poster 11 Current Trends in Development of Radiation Detectors 11 Current Trends in Development of Radiation Detectors

Speaker

COLLINS-PRICE, Patrick (Lancaster University)

Description

This paper describes the use of a Hamamatsu H13700 1616 multi-anode photomultiplier tube (MAPMT) to quantify regional variations in the confidence of neutron/gamma discrimination across the volume of a continuous, organic scintillator. The MAPMT outputs are multiplexed to a single analogue input channel on a mixed-field analyser performing pulse-shape discrimination (PSD) by pulse-gradient analysis (PGA). Accuracy of the PSD response is compared for events occurring within different regions of the scintillator volume by varying the centre of interaction using an aperture collimator. Width and uniformity of the light pulse dispersion is inferred by varying the number of readout anodes used and comparing the change in analogue output to supplied crosstalk data. Although this study is ongoing, these findings could inform future PSD developments to increase certainty in particle identification and position-sensitive neutron counting methods for nuclear safeguarding and materials assay.

Primary author

COLLINS-PRICE, Patrick (Lancaster University)

Co-author

Prof. JOYCE , Malcolm (Lancaster university )

Presentation Materials