Gamma-Ray Induced Radiation Damage Up to 340 Mrad in Various Scintillation Crystals

被引：33
|
作者：
Yang, Fan [1 ]
Zhang, Liyuan [1 ]
Zhu, Ren-Yuan [1 ]
机构：
[1] CALTECH, Pasadena, CA 91125 USA
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2016年 / 63卷 / 02期
关键词：
Emission; light output; longitudinal transmittance; radiation damage; scintillation crystal; LARGE-SIZE LSO; BGO; QUALITY;
D O I：
10.1109/TNS.2015.2505721
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 gamma-ray induced radiation damage in various crystal scintillators of large size, including, BaF2, 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. BaF2, 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.
引用
收藏
页码：612 / 619
页数：8
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