Patent ID: 8183800

Claim:
An induced voltage control device for controlling the generation timing of an induced voltage for acceleration in a synchrotron making use of induction cells, characterized by comprising: a variable delay time pattern calculator for storing a required variable delay time pattern corresponding to an ideal variable delay time pattern calculated according to a magnetic excitation pattern and generating a variable delay time signal according to said required variable delay time pattern; a variable delay time generator for generating a pulse corresponding to said variable delay time in response to the passage signal of a bunch from a bunch monitor placed on a design orbit for a charged particle beam to circulate in and to said variable delay time signal from said variable delay time calculator; an trigger on/off selector for storing an equivalent acceleration voltage amplitude pattern corresponding to an ideal acceleration voltage amplitude pattern calculated according to said magnetic excitation pattern and generating a trigger pulse for on/off-selecting an induced voltage for acceleration in response to a pulse corresponding to said variable delay time from said variable delay time generator; a digital signal processor including a master gate signal output module for generating a master gate signal which is a pulse suited for a pattern generator and outputting said master gate signal after the elapse of said variable delay time in response to said pulse from said on/off selector; and said pattern generator for converting said master gate signal to the gate signal pattern of a switching electric power supply, which drives an induction cell for acceleration.