| BGO晶体的性能研究 |
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| 引用本文： | 吕海江,蔡康松,焦铮,程和平,李铮.BGO晶体的性能研究[J].吉首大学学报(自然科学版),2006,27(2):58-60. |
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| 作者姓名： | 吕海江 蔡康松 焦铮 程和平 李铮 |
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| 作者单位： | 中国科学技术大学近代物理系,安徽,合肥,230026;黄山学院物理系,安徽,黄山,245021;黄山学院物理系,安徽,黄山,245021 |
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| 基金项目： | 面向21世纪教育振兴行动计划(985计划) |
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| 摘 要： | 利用蒙特卡罗方法,模拟不同能量的γ射线在BGO晶体中的闪烁过程及不同厚度不同包装下闪烁光的空间分布,发现点光源模型对于晶体出光平面上闪烁光强分布是适用的.模拟表明：BGO与包装之间的界面粗糙时比光滑时空间分辨更好；闪烁中心离出光面越近位置分布越窄,且晶体厚度为4 mm时光产额最大.
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| 关 键 词： | 蒙特卡罗 光产额 闪烁 γ成像 |
| 文章编号： | 1007-2985（2006）02-0058-03 |
| 收稿时间： | 2005-10-30 |
| 修稿时间： | 2005年10月30 |
Performance of BGO Crystal |
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| L Hai-jiang,CAI Kang-song,JIAO Zheng,CHENG He-ping,LIU Zheng.Performance of BGO Crystal[J].Journal of Jishou University(Natural Science Edition),2006,27(2):58-60. |
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| Authors: | L Hai-jiang CAI Kang-song JIAO Zheng CHENG He-ping LIU Zheng |
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| Institution: | (1.Department of Modern Physics，University of Science and Technology,Hefei 230026，Anhui China;2.Department of Physics，Huangshan University,Huangshan 245021,Anhui China) |
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| Abstract: | By using Monte Carlo method,the authors simulated the scintillation of γ ray with different energy into the BGO crystal and the position distribution of scintillation photons with different thickness and package.The results show that the model of point light source is suitable to the distribution of scintillation photons on production interface of the crystal.Furthermore,the position resolution of photons for rough interface between BGO and seal is much better than for polished interface.The nearer the distance of scintillation center from light-out plane is,the narrower spatial resolution of optical photon is.Finally,the author obtained the most number of output photons when the thickness of BGO is 4 mm. |
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| Keywords: | Monte Carlo photon production scintillation γimaging |
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