公开(公告)号：EP2975431A2

公开(公告)日：2016-01-20

申请号：EP15176890.0

申请日：2015-07-15

申请人： Tsinghua University ,  Nuctech Company Limited

发明人： Li, Yulan ,  Li, Yuangjing ,  Fu, Jianqiang ,  Zhang, Lan ,  Du, Yigshuai ,  Zhang, Wei ,  Ma, Xuming ,  Li, Jun

IPC分类号： G01T1/24

CPC分类号： G01T1/247 ,  G01T1/241 ,  H04N5/32

摘要： The present invention provides a method and apparatus for processing signals of a semiconductor detector, including: acquiring a relationship of a time difference between anode and cathode signals of the semiconductor detector with an anode signal amplitude; obtaining an optimal data screening interval according to the relationship of the time difference between anode and cathode signals of the semiconductor detector with the anode signal amplitude, wherein the optimal data screening interval is an interval where the time difference between the anode and cathode signals is greater than 50 ns; and screening and processing the collected data according to the optimal data screening interval when the semiconductor detector collects data. The present invention better overcomes the inherent crystal defects of the detector, reduces the effect of background noise, increases the energy resolution of the cadmium zinc telluride detector under room temperature, and improves the peak-to-compton ratio.

摘要翻译： 本发明提供了一种处理半导体探测器信号的方法和装置，包括：获取半导体探测器的阳极信号和阴极信号之间的时间差与阳极信号幅度的关系; 根据所述半导体探测器的阳极信号与阴极信号的时间差与所述阳极信号幅度的关系，得到最佳的数据筛选间隔，其中，所述最佳的数据筛选间隔为阳极信号与阴极信号的时间差较大的区间 超过50纳秒; 并根据半导体探测器收集数据时的最佳数据筛选间隔对收集到的数据进行筛选和处理。 本发明更好地克服了探测器固有的晶体缺陷，减少了背景噪声的影响，提高了室温下碲化镉探测器的能量分辨率，提高了峰 - 康比率。