Title :
A Study on Correlations Between the Initial Optical and Scintillation Properties and Their Radiation Damage for Lead Tungstate Crystals
Author :
Chen, Jianming ; Mao, Rihua ; Zhang, Liyuan ; Zhu, Ren-Yuan
Author_Institution :
California Inst. of Technol., Pasadena, CA
fDate :
4/1/2007 12:00:00 AM
Abstract :
This paper presents a study of correlations between the initial optical and scintillation properties and their radiation damage for mass produced lead tungstate crystals. A correlation was observed between crystal´s initial light outputs and the values of its initial longitudinal transmittance at 360 nm. A strong correlation was found between the emission weighted radiation induced absorption coefficients and the relative losses of the longitudinal transmittance at 440 nm. Correlations were also observed between the relative losses of crystal´s light output and the relative losses of its longitudinal transmittance at 440 nm, or the emission weighted radiation induced absorption coefficients. No correlations were observed between crystal´s radiation hardness and its initial longitudinal transmittance or the slope of the initial longitudinal transmittance across the band edge
Keywords :
absorption coefficients; gamma-ray effects; luminescence; radiation hardening; scintillation; solid scintillation detectors; band edge; crystal radiation hardness; emission weighted radiation induced absorption coefficients; gamma-ray irradiations; light outputs; longitudinal transmittance loss; mass produced lead tungstate crystals; optical property; radiation damage; scintillation property; Absorption; Annealing; Collision mitigation; Crystals; Optical losses; Propagation losses; Shape; Silicon carbide; Stimulated emission; Yttrium; Lead tungstate; light output; radiation damage; transmittance;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2007.891673
