Patent ID: 7856086

Claim:
An X-ray generator, comprising: a power source outputting high energy pulses; an electron source radiating high energy electron beams from the high energy pulses; a microwave source supplying a high voltage microwave to the electron source; an X-ray source comprising a bundle of a plurality of X-ray tubes radiating X-rays by a collision of the high-energy electron beams, arranged to form a continuous radiation field of the plurality of X-ray tubes; a deflection means deflecting the direction of the high energy electron beams so that the high energy electron beams are incident in parallel to the medial axis of the X-ray tubes, and are incident on the X-ray tubes sequentially; a data setting unit that sets the radiation intensity of the X-ray tubes so that a predetermined dose distribution is obtained in the field of the X-ray tubes; and a control means setting the high energy pulse width according to the radiation intensity data, synchronizing a timing to output the high energy pulse and a timing to radiate the electron beams and a timing to excite the deflection means, the control means selectively setting the high energy pulse width separately for each X-ray tube of the plurality of X-ray tubes.