TITLE

High-energy-resolution scintillator: Ce[sup 3+] activated LaBr[sub 3]

AUTHOR(S)
van Loef, E. V. D.; Dorenbos, P.; van Eijk, C. W. E.; Kra¨mer, K.; Gu¨del, H. U.
PUB. DATE
September 2001
SOURCE
Applied Physics Letters;9/3/2001, Vol. 79 Issue 10
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The scintillation properties of LaBr[sub 3] doped with 0.5% Ce[sup 3+] are presented. Under optical and gamma ray excitation, Ce[sup 3+] emission is observed to peak at 356 and 387 nm. The scintillation light output is 61 000±5000 photons/MeV at 662 keV. More than 90% is emitted with a decay time of 35 ns. An energy resolution (full width at half maximum over the peak position) of 2.85%±0.05% was observed for the 662 keV full absorption peak. A time resolution of 385 ps was obtained using BaF[sub 2] as second scintillator and gamma rays of [sup 60]Co. © 2001 American Institute of Physics.
ACCESSION #
5072585

 

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