X-RAY COMPUTER TOMOGRAPHY DEVICE, HIGH VOLTAGE GENERATION DEVICE, AND RADIOGRAPHIC IMAGE DIAGNOSIS DEVICE

摘要

The present invention reduces partial damage to an anode. A cathode (132) generates thermoelectrons. An anode (134) generates X-rays upon receiving the thermoelectrons generated from the cathode (132). A supporting mechanism (137) rotatably supports the anode (134) about an axis of rotation (RA). A rotor control power generation unit (27) supplies electric power to the supporting mechanism (137). A switching section (23, 25) is configured so as to switch the intensity of the X-rays generated from the anode (134). An X-ray control unit (29) controls the switching section (23, 25) to perform the switching of the intensity of the X-rays generated from the anode (134) and controls a rotor control power generation unit (27) to rotate the anode (134). At this time, if a substantially integral multiple of an X-ray intensity switching cycle specified by a user matches the rotation cycle of the rotor, the X-ray control unit (29) controls the rotor control power generation unit (27) such that a thermoelectron impingement region during the first revolution of the anode (134) and a thermoelectron impingement region during the second revolution are shifted from each other.