X-RAY COMPUTED TOMOGRAPHIC DEVICE, HIGH VOLTAGE GENERATION DEVICE, AND RADIATION IMAGE DIAGNOSTIC DEVICE

PROBLEM TO BE SOLVED: To provide an X-ray computed tomographic device capable of reducing partial damage to an anode.SOLUTION: A cathode 132 generates a thermal electron. An anode 134 receives the thermal electron generated from the cathode 132 and generates X-ray. A support mechanism 137 supports the anode 134 rotatably around a rotation axis RA. A rotor control power generation part 27 supplies the power to the support mechanism 134. Switching parts 23, 25 are configured so as to switch the intensity of X-ray generated from the anode 134. An X-ray control part 29 controls the switching parts 23, 25 to switch the intensity of the X-ray generated from the anode 134, and controls the rotor control power generation part 27 to rotate the anode 134. In the case that a substantially integral multiple of an X-ray intensity switching frequency designated by a user coincides with a rotor rotation period at that time, the X-ray control part 29 controls the rotor control power generation part 27 so as to shift a thermal electron collision range during first circuiting period of the anode 134 and a thermal electron collision range in a second circuiting period.