双维位置灵敏探测器性能测试  

Test of two-dimensional position sensitive detector

作　　者：王宏伟[1] 肖志刚[1] 柳永英[1] 吴和宇[1] 魏志勇[1] 段利敏[1] 李祖玉[1] 张保国[1] 靳根明[1] 卢朝晖[1] 王素芳[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《核技术》2001年第4期259-263,共5页Nuclear Techniques

基　　金：国家自然科学基金! (195 75 0 5 0 ;196 75 0 5 3);"百人计划"基金资助

摘　　要：对用于放射性次级束测量的大面积双维位置灵敏探测器 (PSD)的性能进行了测试。通过选择实验中电子线路的脉冲成形时间 ,并改进数据处理方法 ,即主放大器的成形时间常数要大于6 μs,而位置路的时间常数约为 0 .5— 1μs ,且在位置公式中使用能量信号作为分母 ,测试得到了较好的位置分辨和能量分辨及线性。结果表明 。A two-dimensional position sensitive detector (PSD) which will be used in the measurement of the radioactive ion beam has been tested. By carefully selecting the pulse shaping time contants in the electronics and improving the method of data analysis; i.e. as the main amplifier's shaping time was more than 6μs and position signal's shaping time was 0.5—1μs, and used the energy signal as the denominator in the formula of position, better position resolution, energy resolution and position linearity have been obtained. The result shows that these type detectors can be used in the measurement of low energy radioactive ion beam.

关 键 词：双维位置灵敏探测器 位置分辨 能量分辨 性能测试 低能放射性束流测量 

分 类 号：TL816.5[核科学技术—核技术及应用]