Growth of 1.5-In Eu : ${\rm SrI}_{2}$ Single Crystal and Scintillation Properties
Growth of 1.5-In Eu : ${\rm SrI}_{2}$ Single Crystal and Scintillation Properties
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1.5 In Eu 的生长：${ m SrI}_{2}$ 单晶和闪烁特性
DOI：
10.1109/tns.2016.2527745
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发表时间：
2016
影响因子：
1.8
通讯作者：
A. Yoshikawa
中科院分区：
文献类型：
--
作者：
Y. Yokota;Tomoki Ito;Shoji Yasuhiro;S. Kurosawa;Y. Ohashi;K. Kamada;A. Yoshikawa
我们通过改进的垂直布里奇曼 (VB) 方法，使用可拆卸室和高频感应加热，生长了 1.5 英寸 Eu 掺杂 SrI2 (Eu : SrI2) 块状单晶。生长的 1.5 英寸 Eu:SrI2 块状单晶在晶体中没有可见的裂纹和夹杂物。在透射率和α射线放射发光光谱中，分别观察到433 nm以下的大吸收和433 nm处的发射峰。每个抛光的 Eu : SrI2 样品均显示出 56 000 ~ 62 000 ph/MeV 的光输出和 3.3 ~ 3.9% 的能量分辨率。样品的衰减时间为0.61~0.67μs。
We grew 1.5-in Eu doped SrI2 (Eu : SrI2) bulk single crystal by a modified vertical Bridgman (VB) method using a removable chamber and high-frequency induction heating. Asgrown 1.5-in Eu : SrI2 bulk single crystal had no visible crack and inclusion in the crystal. In the transmittance and α-ray radioluminescence spectra, large absorption below 433 nm and emission peak at 433 nm were observed, respectively. Each polished Eu : SrI2 specimen indicated 56 000 ~ 62 000 ph/MeV light yield and 3.3 ~ 3.9% energy resolution. The decay times of the specimens were 0.61 ~ 0.67 μs.