| Fast light of CsI（Na） crystals |
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| 引用本文： | 孙希磊,吕军光,胡涛,周莉,曹俊,王贻芳,占亮,俞伯祥,蔡啸,方建,谢宇广,安正华,王志刚,薛镇,章爱武,吕绮雯,宁飞鹏,葛永帅,刘颖彪.Fast light of CsI（Na） crystals[J].中国物理 C,2011,35(12):1130-1133. |
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| 作者姓名： | 孙希磊 吕军光 胡涛 周莉 曹俊 王贻芳 占亮 俞伯祥 蔡啸 方建 谢宇广 安正华 王志刚 薛镇 章爱武 吕绮雯 宁飞鹏 葛永帅 刘颖彪 |
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| 作者单位： | 1. Institute of High Energy Physics, CAS, Beijing 100049, China;;2. Shanxi University, Taiyuan 030006, China |
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| 基金项目： | Supported by Technological Innovation Project of Institute of High Energy Physics |
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| 摘 要： | The responses of different common alkali halide crystals to alpha-rays and gamma-rays are tested in this research. It is found that only CsI(Na) crystals have significantly different waveforms between alpha and gamma scintillations, while others do not exhibit this phenomena. The rise time of the fast light is about 5 ns and the decay time is 17±12 ns. It is suggested that the fast light of CsI(Na) crystals arises from the recombination of free electrons with self-trapped holes of the host crystal CsI. Self-absorption limits the emission of fast light of CsI(Tl) and NaI(Tl) crystals.
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| 关 键 词： | 碱卤晶体 NA 伽玛射线 上升时间 衰减时间 自由电子 CsI CSI |
| 收稿时间： | 2011-3-14 |
| 修稿时间： | 2011-4-27 |
Fast light of CsI(Na) crystals |
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| SUN Xi-Lei LU Jun-Guang HU Tao,ZHOU Li,CAO Jun,WANG Yi-Fang ZHAN Liang,YU Bo-Xiang CAI Xiao,FANG Jian,XIE Yu-Guang AN Zheng-Hua WANG Zhi-Gang XUE Zhen,ZHANG Ai-Wu LV Qi-Wen NING Fei-Peng GE Yong-Shuai LIU Ying-Biao.Fast light of CsI(Na) crystals[J].High Energy Physics and Nuclear Physics,2011,35(12):1130-1133. |
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| Authors: | SUN Xi-Lei LU Jun-Guang HU Tao ZHOU Li CAO Jun WANG Yi-Fang ZHAN Liang YU Bo-Xiang CAI Xiao FANG Jian XIE Yu-Guang AN Zheng-Hua WANG Zhi-Gang XUE Zhen ZHANG Ai-Wu LV Qi-Wen NING Fei-Peng GE Yong-Shuai LIU Ying-Biao |
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| Institution: | 1 Institute of High Energy Physics, CAS, Beijing 100049, China 2 Shanxi University, Taiyuan 030006, China) |
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| Abstract: | |
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| Keywords: | CsI(Na) waveform ionization scintillation exciton self-absorption |
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