Neutron assay in mixed radiation fields with a 6Li-loaded plastic scintillator

Balmer, Matthew and Gamage, Kelum and Taylor, Graeme (2015) Neutron assay in mixed radiation fields with a 6Li-loaded plastic scintillator. Journal of Instrumentation, 10 (8): P08012. ISSN 1748-0221

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A novel technique for assay of thermal and fast neutrons in a 6Li-loaded plastic scintillator is presented. Existing capture-gated thermal neutron detection techniques were evaluated with the 6Li-loaded plastic scintillator studied in this work. Using simulations and experimental work, shortcomings in its performance were highlighted. As a result, it was proposed that by separating the combined fast and thermal neutron events from gamma events, using established pulse shape discrimination techniques, the thermal neutron events could then be assayed. Experiments were conducted at the National Physical Laboratory, Teddington, performing neutron assays with seven different neutron fields using the proposed technique. For each field, thermal and fast neutron content was estimated and were shown to corroborate with the seven synthesised fields.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Instrumentation
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This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Instrumentation. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/1748-0221/10/08/P08012
Uncontrolled Keywords:
?? scintillators and scintillating fibres and light guides pattern recognition, cluster finding, calibration and fitting methods instrumentation for neutron sources neutron detectors (cold, thermal, fast neutrons) instrumentationmathematical physics ??
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Deposited On:
09 Sep 2015 06:32
Last Modified:
20 Apr 2024 01:36