Gamma-Ray Induced Radiation Damage Up to 340 Mrad in Various Scintillation Crystals
- Creators
- Yang, Fan
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Zhang, Liyuan
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Zhu, Ren-Yuan
Abstract
Because of their superb energy resolution and detection efficiency scintillation crystals are widely used in high energy and nuclear physics experiments. A crucial issue is radiation damage in crystals. We report an investigation on γ-ray induced radiation damage in various crystal scintillators of large size, including BaF_2, BGO, CeF_3, pure CsI, LSO/LYSO/LFS and PWO, with an integrated dose up to 340 Mrad and a dose rate up to 1 Mrad/h. Optical and scintillation properties of these crystal samples were measured before and after irradiations. The results show that pure CsI has good radiation hardness below 100 krad. BaF_2, BGO and LYSO have good radiation hardness beyond 1 Mrad. In terms of light output degradation LYSO is clearly the best among all scintillation crystals.
Additional Information
© 2015 IEEE. Manuscript received July 20, 2015; revised November 16, 2015; accepted December 01, 2015. Date of publication March 09, 2016; date of current version April 15, 2016. This work was supported in part by the U.S. Department of Energy Grant DE-SC0011925.Additional details
- Eprint ID
- 67541
- Resolver ID
- CaltechAUTHORS:20160601-110925910
- Department of Energy (DOE)
- DE-SC0011925
- Created
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2016-06-01Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field