DocumentCode :
757925
Title :
Study of LaBr 
Crystals Coupled to Photomultipliers and Avalanche Photodiodes
Author :
Moszynski, M. ; Swiderski, L. ; Szczesniak, T. ; Nassalski, A. ; Kazuch, A. Syntfeld ; Czarnacki, W. ; Pausch, G. ; Stein, J. ; Lavoute, P. ; Lherbert, F. ; Kniest, F.
Author_Institution :
Soltan Inst. for Nucl. Studies, Swierk-Otwock
Volume :
55
Issue :
3
fYear :
2008
fDate :
6/1/2008 12:00:00 AM
Firstpage :
1774
Lastpage :
1780
Abstract :
The performance of several BrilLanCe LaBr3 crystals that range in size from Oslash 6 times 6 mm2 up to Oslash 38 times 38 mm2 coupled to XP5212 and R6231MOD photomultipliers were studied, and in the case of the small crystals, the crystals were also coupled to large area avalanche photodiodes (LAAPD) of Advanced Photonix, Inc. First, the performance of several photomultipliers from Photonis and Hamamatsu with LaBr3 were compared to select the best one, not affecting energy resolution, besides the photoelectron statistics. The light output and energy resolution for 662 keV gamma rays from137 Cs source were measured for all crystals. Moreover, for some crystals, the non-proportionality of the light yield and energy resolution versus gamma ray energy were measured and the intrinsic resolution of the crystals was calculated. For the smallest crystals of Oslash 6 times 6 mm2 further comparative tests with LAAPD were carried out.
Keywords :
avalanche photodiodes; gamma-ray spectrometers; photomultipliers; solid scintillation detectors; 137Cs source; LAAPD; LaBr3 scintillator detector; advanced photonix; energy resolution; gamma ray spectrometry; large area avalanche photodiodes; photoelectron statistics; photomultipliers; Avalanche photodiodes; Energy measurement; Energy resolution; Gamma rays; Photodetectors; Photomultipliers; Photonic crystals; Pulse measurements; Spectroscopy; Statistics; Avalanche photodiodes; LaBr$_{3}$
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2008.920259
Filename :
4545172
Link To Document :
