| 摘要 |
An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction electromagnetic field for rotating the anode target, a housing which accommodates and holds at least the rotation-anode type X-ray tube, a circulation path which is provided near at least a part of the rotation-anode type X-ray tube, and through which a water-based coolant is circulated, and a cooling unit including a circulation pump, which is provided at a position along the circulation path and forcibly feeds the water-based coolant, and a radiator which radiates heat of the water-based coolant, wherein at least a part of a surface of a metallic component is coated with a coating member to prevent contacting with the water-based coolant.
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