LaCl3:Ce coincidence signatures to calibrate gamma-ray detectors
作者： Justin I. McIntyre , Brian T. Schrom , Mathew W. Cooper , Anthony Day , James C. Hayes
DOI: 10.1016/J.NIMA.2011.02.072
关键词: Cerium 、 Scintillator 、 Detector 、 Radiation 、 Nuclear physics 、 Physics 、 Gamma ray detectors 、 Coincidence 、 Calibration 、 Particle detector
摘要: Abstract Calibrating the gamma-ray detection efficiency of radiation detectors in a field environment is difficult under most circumstances. To counter this problem we have developed technique that uses Cerium doped Lanthanum-Tri-Chloride (LaCl 3 :Ce) scintillation detector to provide gated gammas (Guillot-Noel et al. (1999) [1] and van Loef (2001) [2] ). Exploiting inherent radioactivity LaCl :Ce due long-lived radioactive isotope 138 La ( t 1/2 =1.06×10 11 yr) allows use 788 1436 keV as measure efficiency. In paper, explore effectiveness using beta-gamma coincidences calibrate energy number detectors.
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