【摘要】 未来的中国散裂中子源(CSNS)快循环质子同步加速器(RCS)需要束流位置探测器(BPM)来计算和记录位置信息。文章介绍了BPM读出电子学功能样机的实现,其中包括系统总体结构,模拟前端(AFE)和数字前端(DFE)的设计,以及FPGA中的固件开发。不断变化的RCS束流参数使得系统中的模拟部分尤为重要且设计难度大,并且需要新型的前端处理电路,故文章详细描述了模拟前端的电路结构及其工作原理。最后,给出了在现有条件下针对此样机的初步评测结果。该样机满足了束流位置读出的基本要求并且为今后的RCS装置试运行中的质子束位置探测打下了基础。更多还原

【Abstract】 A Beam Position Monitors(BPM) system is needed for the Rapid Cycling Synchrotron(RCS) in China Spallation Neutron Source(CSNS) to calculate and record beam position.It introduces the realization of the functional prototype of the BPM readout electronic system,including the architecture of the electronic hardware,the Analog Front-end(AFE) design,the Digital Front-end(DFE) design,and the development of FPGA firmware.The AFE is the most important and the most difficult part because of the varying beam parameters.Therefore,it describes the realization of a new type of analog circuit in detail.The primary test results are also provided.The prototype meets the basic system demands and could contribute to the future co mmissioning of CSNS RCS.更多还原