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Published April 1, 2007 | public
Journal Article Open

A Study on Correlations Between the Initial Optical and Scintillation Properties and Their Radiation Damage for Lead Tungstate Crystals


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.

Additional Information

© Copyright 2007 IEEE. Reprinted with permission. Manuscript received October 13, 2006; revised January 9, 2007. [Posted online: 2007-04-16] This work was supported in part by the U.S. Department of Energy Grant DE-FG03-92-ER40701. The authors would like to thank the CMS ECAL Collaboration for providing all BTCP samples and 11 SIC samples used in this work. They would also like to thank Prof. J.Y. Liao, D.Z. Shen, and Z.W. Yin for providing 20 samples from SIC. Useful discussions with CMS and SIC colleagues are also acknowledged.


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