A damage and recovery study for lead tungstate crystal samples from BTCP and SIC

Author

Chen, Jianming ; Mao, Rihua ; Zhang, Liyuan ; Zhu, Ren-Yuan

Volume

1

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

249

Lastpage

253

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.

Keywords

lead compounds; particle calorimetry; scintillation counters; semiconductor counters; ultraviolet radiation effects; BTCP; LHC; PWO crystals; PWO₄; SIC; initial light output; initial longitudinal transmittance; irradiation cycles; lead tungstate crystals; radiation damage; Absorption; Collision mitigation; Large Hadron Collider; Lead; Linearity; Mesons; Monitoring; Photonic crystals; Propagation losses; Silicon carbide;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596247

Filename

1596247