Micromegas中子探测器位置分辨特性的Monte-Carlo研究

原子核物理评论 , 2010, 27(3): 291-295.

Micromegas中子探测器位置分辨特性的Monte-Carlo研究

韦峥 ^1, , 李昊翔 ^2, , 张毅 ^3, , 汪珊珊 ^4, , 胡碧涛 ^5,

1.兰州大学核科学与技术学院,甘肃,兰州,730000

2.兰州大学核科学与技术学院,甘肃,兰州,730000

3.兰州大学核科学与技术学院,甘肃,兰州,730000

4.武警成都指挥学院,四川,成都,610213

5.兰州大学核科学与技术学院,甘肃,兰州,730000

基金项目: 国家大学生创新性试验计划基金

关键词： Micromegas , 中子探测器 , 位置分辨 , 计算机模拟

Monte Carlo Simulation of Spatial Resolution of Micromegas as a Neutron Detector

Keywords： Micromegas , neutron detector , spatial resolution , simulation

利用GEANT4和Garfield气体探测器模拟程序模拟了Micromegas中子探测器位置特性.在漂移极上加一层聚乙烯薄膜作为转换材料,通过反冲质子法测量中子的位置.提出了一套通过设定探测器上层结构的方案来得到探测器的位置分辨特性.通过对模拟结果的分析与比较,得到一种易于测定探测器位置分辨特性的方法.该工作不仅可以优化气体探测器结构设计,缩短实验周期,而且还能极大程度地节约经费.

.In the present work,the spatial resolution of Micromegas as a neutron detector was simulated with GEANT4 and Garfield program.The polyethylene foil was used as neutron converter.A new method based on structural setting on the top-layer of the detector was adopted to obtain spatial resolution.According to our simulation,it turned out to be a better spatial resolution,and this method was easily realized in experiment.

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