时间数字转换模块读出接口设计  

Design of Readout Interface for Time to Digital Converter Modules

作　　者：宋海声[1] 魏煜秦 孔洁[2] 杨海波[2] 苏弘[2] 

机构地区：[1]西北师范大学,兰州730070 [2]中国科学院近代物理研究所,兰州730000

出　　处：《核电子学与探测技术》2017年第6期636-640,共5页Nuclear Electronics & Detection Technology

基　　金：甘肃省自然基金(1606RJZA065);国家自然科学基金(11605265)资助

摘　　要：为解决时间数字转换TDC模块数据传输中遇到的连续性和可靠性问题,以用户数据包协议(UDP)作为通信协议,采用Cyclone III FPGA为控制芯片,针对重离子治癌项目中对时间间隔测量的要求,设计了基于FPGA的数据传输接口。测试结果表明:该系统能稳定地与主机进行通信,可用于Inbeam PET影像装置中飞行时间的测量。To resolve the problem of reliability and stability of data transmission in a time to digital converter（TDC）,the User Datagram Protocol（UDP） is adopted as the communication protocol and a Cyclone Ⅲ FPGA is used as main control chip in this data transmission interface. According to the requirements of time interval measurement for heavy ion therapy program,a design of data transmission interface based on FPGA is proposed in this paper. Experimental results show that the interface has the features of high efficient and stability,the quick and reliable communication between FPGA and the host computer can be implemented through the interface. The TDC will be used for time-of-flight measurement in In-beam Position Emission Tomography equipment.

关 键 词：时间数字转换 以太网 UDP PET 

分 类 号：TL8[核科学技术—核技术及应用]