PET符合通道时间偏差测试与校正  

Testing and Correction of the Coincidence Channel Time Deviation in PET

作　　者：曹雪彦 张斌[1] 刘小平 赵书俊[1] 宿东祥 李景涛 李小青 CAO Xue-yan;ZHANG Bin;LIU Xiao-ping;ZHAO Shu-jun;SU Dong-xiang;LI Jing-tao;LI Xiao-qing(School of Physics and Engineering,Zhengzhou University,Zhengzhou 450001,China;Beijing Daji Kangming Medical Equipment Co,Ltd,Beijing 100176,China)

机构地区：[1]郑州大学物理工程学院,郑州450001 [2]北京大基康明医疗设备有限公司,北京100176

出　　处：《核电子学与探测技术》2019年第5期647-651,共5页Nuclear Electronics & Detection Technology

摘　　要：通过测量时钟通信控制板符合通道的时钟信号,发现时钟信号存在固有时间偏差,根据时间偏差值调整时钟线的长度降低符合通道的时间偏差完成时间校正.实验数据显示此方法一方面可以得到理想的符合时间谱,另一方面可以快速、有效地测试出PET符合探测系统的时间偏差.By measuring the clock signal of the coincidence channel of the clock communication control panel,According to the measured time deviation value,time correction can be achieved by adjusting the length of the clock line to reduce the time deviation of the coincidence channel.The results show that by utilizing this method,one can obtain ideal coincidence time spectrum,and detect the deviation of PET coincidence detection system rapidly and effectively at the same time.

关 键 词：PET 符合探测 时间校正 时钟同步信号 

分 类 号：TH776[机械工程—仪器科学与技术]