Design on readout circuit of CZT pixel nuclear radiation detector

PAN Yin-song; LIU Feng-lin; YANG Shuai-ju

doi:10.13873/j.1000-97872012.06.013

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Design on readout circuit of CZT pixel nuclear radiation detector

更新时间：2025-09-11

- Design on readout circuit of CZT pixel nuclear radiation detector
- Vol. 31, Issue 6, Pages: 125-127(2012)
- 作者机构：
  
  重庆大学光电技术及系统教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.06.013
  CLC： TL814
- Published：2012
- 稿件说明：
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[1]潘银松,刘凤琳,杨帅举.CZT像素核辐射探测器读出电路的设计[J].传感器与微系统,2012,31(06):125-127.

PAN Yin-song, LIU Feng-lin, YANG Shuai-ju. Design on readout circuit of CZT pixel nuclear radiation detector[J]. 2012, 31(6): 125-127.
[1]潘银松,刘凤琳,杨帅举.CZT像素核辐射探测器读出电路的设计[J].传感器与微系统,2012,31(06):125-127. DOI： 10.13873/j.1000-97872012.06.013.

PAN Yin-song, LIU Feng-lin, YANG Shuai-ju. Design on readout circuit of CZT pixel nuclear radiation detector[J]. 2012, 31(6): 125-127. DOI： 10.13873/j.1000-97872012.06.013.

摘要

CZT作为一种新型室温核辐射探测器材料

适用范围广泛

设计一种有效的CZT读出电路意义重大。采用CMOS技术设计了一种高分辨率、低功耗的CZT像素核辐射探测器读出电路。该读出电路包括电荷敏感型前置运放、整形滤波网络、放大级。运放采用PMOS输入折叠共源共栅结构

滤波网络采用简单的RC—CR结构。在GPDK 0.18μm CMOS工艺下进行的仿真

表明该读出电路的灵敏度为0.3mV/keV

探测能量范围为20～200 keV

单信道功耗为1 mW。

Abstract

As a new material for nuclear radiation detector in room temperature

CZT has wide application range.So

it’s important to design an effective readout circuit for CZT pixel nuclear radiation detector.CMOS technology is adopted to design a high resolution

low power consumption readout circuit for CZT pixel nuclear radiation detector.This readout circuit consists of charge sensing pre-amplifier

shaping filter network

amplified stage.The operational amplifier adopts PMOS input folded cascade structure and the filtering network uses simple RC—CR structure.The result simulated in the GPDK 0.18 μm CMOS technology show that the sensitivity of this circuit is 0.3 mV/keV

detected energy range is 20

00 keV

the power consumption for each channel is 1 mW.

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references

基于碲锌镉探测器的能谱放大器 [J]. 赵翠兰,浦世节. 核技术 . 2008(01)

CMOS模拟集成电路设计[M]. 电子工业出版社 , (美)PhillipE.Allen,（美）DouglasR.Holberg著, 2005

HEXITEC ASIC—a pixellated readout chip for CZT detectors [J] . Lawrence Jones,Paul Seller,Matthew Wilson,Alec Hardie. Nuclear Inst. and Methods in Physics Research, A . 2009 (1)

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