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Proceedings Paper

Spatial response characterization of He-4 scintillation detectors
Author(s): Ryan P. Kelley; Noah Steinberg; David Murer; Heather Ray; Kelly A. Jordan
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Paper Abstract

The spatial response of pressurized helium-4 fast neutron scintillation detectors is characterized using collimated neutron source measurements and MCNPX-PoliMi simulations. A method for localizing the position of each detected event is also demonstrated using the two-sided photomultiplier readout. Results show that the position of particle interaction along the axis of the active volume has a measurable effect on the scintillation light response of the detector. An algorithm is presented that uses the probability distribution of relative interaction positions to perform source localization, further demonstrating the applicability of these detectors as tools for the detector of hidden shielded nuclear material.

Paper Details

Date Published: 27 August 2015
PDF: 14 pages
Proc. SPIE 9595, Radiation Detectors: Systems and Applications XVI, 95950G (27 August 2015); doi: 10.1117/12.2188121
Show Author Affiliations
Ryan P. Kelley, Univ. of Florida (United States)
Noah Steinberg, Univ. of Florida (United States)
David Murer, Arktis Radiation Detectors Ltd. (Switzerland)
Heather Ray, Univ. of Florida (United States)
Kelly A. Jordan, Univ. of Florida (United States)

Published in SPIE Proceedings Vol. 9595:
Radiation Detectors: Systems and Applications XVI
Gary P. Grim; H. Bradford Barber, Editor(s)

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