Boron-10 Loaded BC523A Liquid Scintillator for Neutron Detection in the Border Monitoring

A BC523A liquid scintillator loaded with boron-10 was tested as a detector for both fast and thermal neutrons. A 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 photomu...

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Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 55; no. 6; pp. 3710 - 3716
Main Authors Swiderski, L., Moszynski, M., Wolski, D., Batsch, T., Nassalski, A., Syntfeld-Kazuch, A., Szczesniak, T., Kniest, F., Kusner, M.R., Pausch, G., Stein, J., Klamra, W.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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Summary:A BC523A liquid scintillator loaded with boron-10 was tested as a detector for both fast and thermal neutrons. A 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 keV gamma-rays. The applied PSD method proved to be useful for n/gamma 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.
Bibliography:ObjectType-Article-1
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ISSN:0018-9499
1558-1578
1558-1578
DOI:10.1109/TNS.2008.2006172