Single crystal growth and scintillation properties of Ca(Cl, Br, I)2 single crystal
Single crystal growth and scintillation properties of Ca(Cl, Br, I)2 single crystal
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Ca(Cl,Br,I)2单晶的单晶生长和闪烁特性
DOI：
10.1016/j.ceramint.2017.05.249
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发表时间：
2017
影响因子：
5.2
通讯作者：
Akira Yoshikawa
中科院分区：
文献类型：
--
作者：
Kei Kamada;Takashi Iida;Takaki Ohata;Masao Yoshino;Shoki Hayasaka;Yasuhiro Shoji;Shiro Sakuragi;Shunsuke Kurosawa;Yuui Yokota;Yuji Ohashi;Akira Yoshikawa
采用Bridgman-Stockbarger（BS）法生长了未掺杂的CaCl 2、CaBr 2和CaI 2单晶。研究了它们的晶相、发光和闪烁特性，如光产额、能量分辨率、衰减时间等。此外，还对32-1275 keV范围内γ射线响应的线性度进行了评价。在662 keV能量下，光输出为106，000光子/MeV，能量分辨率为3.2%，闪烁衰减时间为834 ns（84%）~ 1460 ns（16%）。首次报道了CaBr_2的发光性质。
Single crystal growth of undope CaCl2, CaBr2and CaI2was performed by Bridgman–Stockbarger (BS) method. Investigations of their crystal phases, luminescence and scintillation properties such light yield, energy resolution decay time were performed. In addition, linearity of gamma-ray response in 32–1275 keV range were also evaluated. The light output of 106,000 photon/MeV, energy resolution of 3.2%@662 keV, and scintillation decay time of 834 ns (84%) 1460 ns (16%) were observed. Luminescence properties of CaBr2also firstly reported.