大亚湾中微子实验光电倍增管输出振铃脉冲的分析研究  

Study on PMT Ringing Signal of The Daya Bay Neutrino Experiment

作　　者：蒋文奇[1,2] 王铮[2] 李秋菊[2] 常劲帆[2] 严雄波[2] 魏微[2] 陆卫国[2] 吕继方[2] 

机构地区：[1]中国科学技术大学,安徽合肥230026 [2]中国科学院高能物理研究所,北京100049

出　　处：《核电子学与探测技术》2012年第4期442-445,共4页Nuclear Electronics & Detection Technology

摘　　要：大亚湾反应堆中微子实验是一个研究中微子振荡的实验[1],主要目标是利用核反应堆产生的电子反中微子来测定一个具有重大物理意义的参数—中微子混合角θ13。大亚湾中微子实验的目标是将sin22θ13测量到0.01或更高的精度,为实现对大亚湾中微子信号的准确测量,必须要求光电倍增管输出干净脉冲信号到前端电子学(FEE),但在测试实验中,发现光电倍增管输出脉冲含有振铃。针对振铃进行了详尽分析,找到了振铃产生的根源,也确认了电容在高压下的压电效应。The Daya Bay Neutrino Experiment is a neutrino - oscillation experiment designed to measure the mixing angle θ3 using anti - neutrinos produced by the reaetom of the DayaBay Nuclear Power Plant （NPP） and the Ling Ao NPP. The readout signals of the PMTs which are reacted by the Neutrino need to be accurately measured for the goal of the Daya Bay experiment which needs a measurement of sin^22θ3 to 0.01 or better. But ringing was found in the PMT test. It describes the ringing in the readout signals of the PMTs, and analyses the cause of the ringing.

关 键 词：光电倍增管 前端电子学 振铃 电容 压电效应 

分 类 号：TN4[电子电信—微电子学与固体电子学] TL8[核科学技术—核技术及应用]