脉冲幅度定时甄别电路的研究  

Study of Pulse-Height Timing Discriminators

作　　者：易立华[1] 曾云[1] 赵棣新[2] 刘振安[2] 过雅南[2] 

机构地区：[1]湖南大学应用物理系,长沙410082 [2]中国科学院高能物理研究所,北京100039

出　　处：《宇航计测技术》2004年第4期39-42,共4页Journal of Astronautic Metrology and Measurement

摘　　要：介绍了普通脉冲幅度定时甄别电路的原理及存在的定时误差。针对BESⅢ实际工程中输入脉冲幅度信号的特点设计了一个新型的过零定时甄别电路 ,与普通定时甄别电路相比 ,时间游动定时误差大大减小 ,满足BESⅢ工程后级判选电路的要求。The principle of general pulse-height discriminator circuit and its existing timing error were introduced. A new discriminator circuit based on the characteristic of preamplifiers input signal in the actual project of BESⅢ has been designed. Its time roving timing error is greately smaller than general discriminator circuit. Meeting it's the requirement of trigger decision circuit in the project of BESⅢ.

关 键 词：定时误差 电路 脉冲幅度 后级 信号 原理 输入 甄别 研究 要求 

分 类 号：R775.2[医药卫生—眼科] TN929[医药卫生—临床医学]