Patent ID: 9351694
Filing Date: 2016-05-31
CPC Classification: A61B,H01J,H05G,Y10T

Claim Text:
1. An X-ray computed tomography apparatus comprising: an X-ray tube device comprising a housing, and an X-ray tube housed in the housing, the X-ray tube including a cathode configured to discharge an electron beam, an anode target configured to discharge an X-ray by receiving the electron beam, and a vacuum envelope which stores the cathode and the anode target; a coolant where at least a part of heat generated in the X-ray tube is transferred; a circulation path where the coolant is circulated; a circulation pump installed in the circulation path to circulate the coolant; a radiator unit installed in the circulation path to externally discharge the heat of the coolant; a fan unit configured to generate an air flow passing through the radiator unit; an X-ray detector configured to detect the X-ray; a rotary gantry frame including a ring-shaped frame portion rotating with respect to a rotation axis, the X-ray tube device, the circulation pump, the radiator unit, the fan unit, and the X-ray detector being installed in the rotary gantry frame; and an expansion mechanism installed in the circulation path to absorb a volume change caused by a temperature change of the coolant, wherein a windward side of the radiator unit is exposed in an inner wall side space of the frame portion.