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Comparison of {\hbox {LaBr}}_{3}:{\hbox {Ce}} and {\hbox {LaCl}}_{3}:{\hbox {Ce}} With NaI(Tl) and Cadmium Zinc Telluride (CZT) Detectors

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5 Author(s)
Alexiev, D. ; Australian Nucl. Sci. & Technol. Organ., Lucas Heights, NSW ; Mo, L. ; Prokopovich, D.A. ; Smith, M.L.
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Energy resolution and detection efficiency were compared between new scintillators, lanthanum bromide (LaBr3:Ce) and lanthanum chloride (LaCl3:Ce) with conventional detectors, sodium iodide NaI(Tl) and cadmium zinc telluride (CdZnTe or CZT). The study has shown that LaBr3:Ce and LaCl3:Ce scintillator detectors provided by Saint-Gobain offer better resolution than NaI(Tl) detector. LaBr3:Ce and LaCl3:Ce detectors could resolve some closely spaced peaks from 133Ba and 152Eu, which Na(I) could not. LaBr3:Ce has slightly better resolution and higher efficiency than LaCl3:Ce. An overall advantage of LaBr3:Ce and LaCl3:Ce detectors over NaI(Tl) and CZT has been discussed. The intrinsic activity of LaBr3:Ce is also demonstrated in this study.

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Nuclear Science, IEEE Transactions on  (Volume:55 ,  Issue: 3 )