Rotating-anode X-ray tube assembly with cooling system
AssigneeToshiba Electron Tubes & Devices Co., Ltd.
InventorsHidero Anno, Masaji Kanagami
Life of this patent
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Abstract
According to one embodiment, a rotating-anode X-ray tube assembly includes a rotating-anode X-ray tube, a housing, a coolant, a first shell, an X-ray shielding member, a second shell and an air introduction unit. The first shell is provided apart from the housing and an envelope of the rotating-anode X-ray tube, and surrounds the envelope. The X-ray shielding member is provided between the first shell and the housing and apart from the housing. The second shell is provided apart from the housing to cause an airway to be formed between the second shell and the housing. The air introduction unit produces a flow of air in the airway.
Claims17
A rotating-anode X-ray tube assembly comprising:
- a rotating-anode X-ray tube comprising a cathode configured to emit electrons, an anode target configured to emit X rays, a supporting mechanism which supports the anode target in such a way as to allow the anode target to be rotated, and an envelope which accommodates the cathode, the anode target and the supporting mechanism;
- a housing which accommodates the rotating-anode X-ray tube;
- a coolant filled in space between the rotating-anode X-ray tube and the housing;
- a first shell provided between the envelope and the housing and apart from the envelope and the housing, extending along an axis of the anode target, and surrounding the envelope;
- an X-ray shielding member fixed to the first shell, provided between the first shell and the housing and apart from the housing, and including a through hole through which the X rays are made to pass;
- a second shell provided apart from the housing, surrounding the housing in a direction perpendicular to the axis, and forming an airway between the second shell and the housing;
- and
- an air induction unit configured to introduce air into the airway to produce a flow of air.
Dependencies are inferred from the claim text.