This invention provides a charged corpuscle accelerator capable of reducing the amount of pattern data required for operating an acceleration cavity and electric-magnet according to a time clock to reduce the communication time of the pattern data. The charged corpuscle accelerator (54) has an accelerator control device (25) which contains: a timing generator (18) for producing an acceleration cavity clock, and an electric-magnet clock having a frequency synchronous with a acceleration cavity clock and lower than that of the acceleration cavity clock; a high frequency control unit (19) for controlling the acceleration cavity (11) according to the acceleration cavity pattern and the acceleration cavity clock stored in a first pattern memory (5); and a deflection electric-magnet controller (20) for controlling a deflection electric-magnet (15) according to the deflection electric-magnet's pattern and the electric-magnet clock stored in a second pattern memory (12).
Charged corpuscle accerator and corpuscular beam treatment device