粒子辐射探测器专用电荷灵敏前置放大器扩量程技术研究  

Research on Range Expansion Technology of Charge Sensitive Preamplifier for Particle Radiation Detector

作　　者：王游龙 于向前[1] 王玲华[1] 陈鸿飞[1] 施伟红[1] 陈傲 王永福[1] 杨芯 宗秋刚[1] 邹鸿[1] WANG Youlong;YU Xiangqian;WANG Linghua;CHEN Hongfei;SHI Weihong;CHEN Ao;WANG Yongfu;YANG Xin;ZONG Qiugang;ZOU Hong(School of Earth and Space Sciences,Peking University,Beijing 100871)

机构地区：[1]北京大学地球与空间科学学院,北京100871

出　　处：《北京大学学报（自然科学版）》2024年第6期973-978,共6页Acta Scientiarum Naturalium Universitatis Pekinensis

基　　金：家自然科学基金(42127803, 42225404)资助。

摘　　要：专用集成前置放大器RENA3因噪声低而广泛用做粒子辐射探测器的前置放大器,但RENA3的最大输入电荷量限制了其量程。针对这一问题,提出一种通过在RENA3的输入端并联电容的方法来扩展量程,并对该扩量程技术方案进行理论分析、PSpice仿真分析和实验验证。实验结果与理论分析和数值模拟结果相吻合,由此验证了所提出方法的可行性。该方法可适用于其他专用集成前置放大器的量程扩展。The particle radiation detector readout ASIC RENA3(Readout Electronics for Nuclear Applications)is widely used as preamplifier for its low-noise,but the maximum input charge of RENA3 limits its range.This paper proposes a method to realize the range expansion by paralleling the capacitor at the input of RENA3.Theoretical analysis,PSpice simulation analysis and experimental verification were carried out.The experimental results are consistent with the theoretical analysis and numerical simulation results,which verify the feasibility of the method.This method can also be used to expand the range of other ASIC.

关 键 词：专用集成前置放大器 量程扩展 RENA3 

分 类 号：TN722[电子电信—电路与系统] TL816[核科学技术—核技术及应用]