21-25 June 2021
Clarion Congress Hotel Prague
Europe/Prague timezone
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Regional variation in neutron/gamma pulse-shape discrimination in an organic scintillator

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3rd floor (Clarion Congress Hotel Prague)

3rd floor

Clarion Congress Hotel Prague

Freyova 945/33, 190 00 Prague 9 - Vysočany
Poster 11 Current Trends in Development of Radiation Detectors


COLLINS-PRICE, Patrick (Lancaster University)


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)


Prof. JOYCE , Malcolm (Lancaster university )

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