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| 确定单光子计数系统中最佳甄别电压的实验研究 | |
| 引用本文： | 陈凯,杨振萍. 确定单光子计数系统中最佳甄别电压的实验研究[J]. 物理实验, 2007, 27(11): 7-11 |
| 作者姓名： | 陈凯 杨振萍 |
| 作者单位： | 西南科技大学,理学院,四川,绵阳,621010 |
| 基金项目： | 西南科技大学校级教改项目 |
| 摘 要： | 在光电倍增管相关理论的基础上从改变功率、积分时间、减光片、阴极电子加速电压等方面,通过实验利用Matlab软件对曲线进行拟合,通过该方法得到了光子计数率与功率、信噪比与功率、信噪比与积分时间之间的关系以及光电倍增管的相关特性.最后确定了单光子计数系统中最佳甄别电压的具体方法. |
| 关 键 词： | 甄别电压 光电倍增管 光功率 光子计数 信噪比 |
| 文章编号： | 1005-4642（2007）11-0007-05 |
| 修稿时间： | 2007-07-112007-09-17 |
Estimating the best discrimination voltage in single-photon counting system |
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| CHEN Kai,YANG Zhen-ping. Estimating the best discrimination voltage in single-photon counting system[J]. Physics Experimentation, 2007, 27(11): 7-11 | |
| Authors: | CHEN Kai YANG Zhen-ping |
| Affiliation: | School of Science, Southwest University of Science and Technology, Mianyang 621010, China |
| Abstract: | Based on the photomultiplier theory,experimental data corresponding to different power,integral time,number of cut-ray slice,high voltage,etc.,are gained,and the curve are fitted using Matlab software.The relationships between photon counting rate and power,signal-to-noise ratio and power,signal-to-noise ratio and integral time are given.At the same time,many features related to photomultiplier are summed up.Finally,a detailed way to estimate the best discrimination voltage is presented. |
| Keywords: | discrimination voltage photomultiplier luminous power photon counting signal-to-noise ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |