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The fast light of CsI(Na) crystals

By Xilei Sun, Junguang Lu, Tao Hu, Li Zhou, Jun Cao, Yifang Wang, Liang Zhan, Boxiang Yu, Xiao Cai, Jian Fang, Yuguang Xie, Zhenghua An, Zhigang Wang, Zhen Xue, Aiwu Zhang, Qiwen Lu, Feipeng Ning, Yongshuai Ge and Yingbiao Liu

Abstract

The responds of different common alkali halide crystals to alpha-rays and gamma-rays are tested in our research. It is found that only CsI(Na) crystals have significantly different waveforms between alpha and gamma scintillations, while others have not this phenomena. 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.Comment: 5 pages, 11 figures Submit to Chinese Physics

Topics: Physics - Instrumentation and Detectors
Year: 2011
DOI identifier: 10.1088/1674-1137/35/12/009
OAI identifier: oai:arXiv.org:1103.6105
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