【作者】 文向阳； 魏义祥； 张智；

【Author】 Wen Xiangyang, Wei Tixiang, Zhang Zhi (Department of Engineering Physics, Tsinghua University, Beijing, 100084)

【机构】 清华大学工程物理系；

【摘要】 设计了一个基于DSP的高速数字波形甄别系统,该系统采用触发采集方式逐个处理输入脉冲,利用双FIFO缓冲的方法得到完整的输入脉冲波形。本文详细讨论了系统的软硬件设计,并给出了测试结果。结果表明数字波形甄别器较传统方法有更好的甄别能力,能够满足硬X射线调制望远镜的甄别要求。更多还原

【Abstract】 A DSP based high-speed digital pulse shape discrimination system was developed for phoswich detector, in which the input pulse is processed one by one by digital triggering, double-FIFO buffer technique is used to acquire the whole pulse shape. The hardware and software design of this system is fully discussed, and the testing results are given. It has been shown that the digital discriminator has better discrimination capability than the traditional method, and can satisfy the requirements of Hard X-ray Modulation Telescope.更多还原