Close - loop control system of the optical klystron magnetic gap of chg - fel 光学速调管磁极间隙全闭环控制系统
2.
Delay function can be implement by connect a capacitor between chg and vss . the time of delay is decided by the value of capacitor 延迟功能可在chg和vss之间加一电容达成，电容之大小决定延迟时间长短。
3.
Delay function can be implement by connect a capacitor between chg and vss . the time of delay is decided by the value of capacitor 延迟功能可在chg和vss之间加一电容达成，电容之大小决定延迟时间长短。
