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Boron-10 loaded BC523A liquid scintillator for neutron detection in the border monitoring
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2007 (English)In: 2007 IEEE Nuclear Science Symposium & Medical Imaging Conference, IEEE , 2007, 1389-1395 p.Conference paper (Refereed)
Abstract [en]

A BC523A liquid scintillator loaded with boron-10 was tested as a detector for both fast and thermal neutrons. Pulse shape discrimination (PSD) method based on a zero-crossing principle was applied to distinguish between neutron and gamma radiation. High quantum efficiency Photonis XP5500B photomultiplier was used to enhance light detection from the scintillator. This allowed a good registration of the energy spectrum of neutron capture events on boron-10, corresponding to about 60 keVee. The applied PSD method proved to be useful for n/γ discrimination. A good resolving power of the method was achieved even without gating on neutron capture events. A comparison with a standard BC501A liquid scintillator was done to evaluate thermal neutrons detection efficiency in BC523A.

Place, publisher, year, edition, pages
IEEE , 2007. 1389-1395 p.
, IEEE Nuclear Science Symposium Conference Record, ISSN 1095-7863 ; 2
Keyword [en]
Atoms, Boron, Boron compounds, Gamma rays, Light emission, Luminescence, Medical imaging, Nuclear reactors, Power spectral density, Pulse shaping circuits, Scintillation, Scintillation counters
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URN: urn:nbn:se:kth:diva-154918DOI: 10.1109/NSSMIC.2007.4437259ISI: 000257380401025ScopusID: 2-s2.0-48349122593ISBN: 1424409233ISBN: 978-142440923-5OAI: diva2:760235
2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC, 27 October 2007 through 3 November 2007, Honolulu, HI, United States

QC 20141103

Available from: 2014-11-03 Created: 2014-10-29 Last updated: 2014-11-03Bibliographically approved

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