摘要
中国科学技术大学的核固体物理实验室设计了一套正电子谱仪装置,此装置要求其脉冲调制系统能够给出一路边沿小于2ns、宽度约7ns、幅度大于5V的50MHz脉冲信号和两路频率分别为50MHz、200MHz的正弦信号。本文给出了为此装置设计的高精度脉冲调制系统,并给出了该系统各项指标的测试结果。
The Laboratory of Nuclear Solid State Physics in the University of Science and Technology of China designs a apparatus of Positron Spectroscopy , which needs it＇s beam pulsing system to generate a edge time〈2ns,width-7ns ,amplitude〉5V, 50MHz pulse signal, a 50MHz sine signal and a 200MHz sine signal. This paper presents the design of high precision beam pulsing system for the Positron Spectroscopy, and also presents the result of the test.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第2期219-222,共4页
Nuclear Electronics & Detection Technology
关键词
快边沿
大幅度
精确相位调节
低相位差晃动
时间间隔测量法
PLL
FPGA
fast edge-time, high amplitude, high precision changing phase, low phase jitter, time interval measurement, PLL, FPGA
