Abstract
This paper presents an in depth study on radiation damage and recovery in lead tungstate crystals produced at BTCP and SIC. Correlations were observed between initial light output and initial longitudinal transmittance at 360 nm, between the loss of longitudinal transmittance at 440 nm and the amplitude of radiation damage, and between radiation damage levels at different dose rates. Excellent linearity was observed between the variations of crystal's light output and its longitudinal transmittance at 440 nm in repeated cycles of irradiation at a dose rate up to 400 rad/h followed by recovery, indicating these PWO crystals can be monitored in situ at LHC.
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