Title :
Fano factor of scintillation detectors from photoelectron correlations
Author :
Bousselham, Abdelkader ; Barrett, Harrison H. ; Bora, Vaibhav ; Shah, Kanai
Author_Institution :
Dept. of Radiol., Univ. of Arizona, Tucson, AZ, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
In this work we propose a new experimental approach to studying the statistics of the scintillation light from scintillation detectors. Two photodetectors are used for detecting the light output from the two faces of a thin scintillator crystal. From the correlation of the signals from the two photodetectors, the Fano factor Fopt of the scintillation light is determined. Data on several inorganic crystalline scintillators (CsI:Na, LaBr3:Ce, and CdWO4) are presented, and in LaBr3:Ce it is observed that the correlations are negative and Fopt << 1 (sub-Poisson statistics).
Keywords :
photodetectors; photoelectron spectra; photoemission; radiation detection; scintillation counters; CdWO4; CsI:Na; Fano factor; LaBr3:Ce; inorganic crystalline scintillators; light output; photodetectors; photoelectron correlations; scintillation detectors; scintillation light; sub-Poisson statistics; thin scintillator crystal; Crystallization; Energy measurement; Energy resolution; Face detection; Nuclear imaging; Photodetectors; Radiology; Scintillation counters; Solid scintillation detectors; Statistics; Fano factor; Photoelectron anticorrelation; sub-Poisson statistics;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402210
