Readout and Signal Processing Electronics for 2×2 CZT Detectors in Parallel

摘要：

In this paper,the readout system for 2×2 CdZnTe (CZT) detectors in parallel was designed and fabricated with analog electronics. The equivalent noise with this readout system was in the range of 223 electrons RMS for Cd=0pF to 1785 electrons RMS for Cd=330pF. The output signal of the preamplifier was about 130mV,the signal duration was about 0.2ms and the signal rise time was about 900ns,when the CZT detector biased at -1250V was exposed to the radiation source 137Cs (662keV)with the shaping time of 2.2us. The ratio of signal to noise (SNR) is about 27:1,after the signal through summing circuit.

作者: Zhubin Shi Wenbin Sang Yongbiao Qian Jianyong Teng Jiahua Min Jianrong Fan

作者单位: School of Materials Science and Engineering,Shanghai University,Shanghai,200072,P.R.China School of Materials Science and Engineering,Shanghai University,Shanghai,200072,P.R.China RAE Engine

会议类型: 国际会议

会议名称: 9th International Conference on Solid-State and Integrated-Circuit Technology(第9届固态和集成电路国际会议)

会议地点: 北京

会议语种:英文

页码: 992-995

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）