Title :
Gamma ray induced radiation damage in PWO and LSO/LYSO crystals
Author :
Mao, Rihua ; Zhang, Liyuan ; Zhu, Ren-Yuan
Author_Institution :
California Inst. of Technol., Pasadena, CA, USA
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
This paper compares ¿-ray induced radiation damage effect in two kinds of heavy crystal scintillators: PWO and LSO/LYSO. Scintillation emission, optical transmission, light output, decay kinetics and light response uniformity were measured for PWO and LSO/LYSO crystal samples of large size before and after ¿-ray irradiations. ¿-ray induced phosphorescence was also measured, and the corresponding readout noise was determined.
Keywords :
gamma-ray effects; phosphorescence; solid scintillation detectors; LYSO crystal; PWO crystal; decay kinetics; gamma-ray induced phosphorescence; gamma-ray induced radiation damage effect; heavy crystal scintillators; light output; light response uniformity; optical transmission; readout noise; scintillation emission; Collimators; Crystals; Electromagnetic radiation; Electromagnetic wave absorption; Kinetic theory; Noise measurement; Optical noise; Phosphorescence; Photoluminescence; Size measurement;
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.2009.5402126
