加速器电子枪控制器的设计及其远程光纤通讯的实现
Design and remote fiber communication of NSRL electron gun controller
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摘要: 介绍了合肥国家同步辐射实验室200 MeV电子直线加速器新型脉冲电子枪控制器的工作原理，以及I2C总线和嵌入式微控制器在电子枪控制器中的应用，详细分析了加热灯丝的数控电流源、引出电子束的数控电压源和脉冲电压源等模块的硬件实现，并给出了光纤通讯和后端微机控制软件的设计过程。该电子枪已成功应用于加速器的实际运行中，性能稳定，工作可靠，完全替代了以前的机械控制方式。Abstract: A new kind of pulse electron gun controller for 200 MeV LINAC at National Synchrotron Radiation Laboratory was introduced in this paper, including the working principle of the pulse electron gun, the applications of I2C serial bus and embedded microcontroller in controlling system. The emphasis is on the hardware design of digital controlled current regulator, digital controlled switch voltage source and high voltage pulse power supply. The software design of fiber communication and PC controlling is also presented. The electron gun controller has successfully been used in NSRL. The result shows that it is quite reliable and the performance is good. This electronic digital system has completely replaced the old mechanical control system．
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