Boron-10 Loaded BC523A Liquid Scintillator for Neutron Detection in the Border Monitoring
2008 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, E-ISSN 1558-1578, Vol. 55, no 6, 3710-3716 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2008. Vol. 55, no 6, 3710-3716 p.
Boron-10, liquid scintillators, neutron detection, zero-crossing method, n-gamma discrimination, rays, wall
IdentifiersURN: urn:nbn:se:kth:diva-18126DOI: 10.1109/tns.2008.2006172ISI: 000262714400022ScopusID: 2-s2.0-58849157302OAI: oai:DiVA.org:kth-18126DiVA: diva2:336172
QC 201005252010-08-052010-08-05Bibliographically approved