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US 2022/0199348 A1Published application
X-ray tube device
AssigneeCanon Electron Tubes & Devices Co., Ltd.
InventorsToshimi WATANABE, Hirobumi YOSHIZAWA, Junki SONE
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Abstract
According to one embodiment, an X-ray tube device includes a cathode which emits electrons, an anode target which generates X-rays when the electrons emitted from the cathode collide therewith, a first tube portion, a second tube portion which forms a flow path of a coolant together with the first tube portion, and a protective film. The protective film covers an inner surface of the first tube portion, and is formed of hard gold.
Claims4
An X-ray tube device comprising:
- a cathode which emits electrons;
- an anode target which generates X-rays when the electrons emitted from the cathode collide therewith;
- a first tube portion having one end portion and another end portion including a bottom portion which is closed and joined to the anode target;
- a second tube portion located inside the first tube portion, having a first end portion where an inlet for taking in a coolant is formed and a second end portion which is opposed to the bottom portion and where an outlet for discharging the coolant to the bottom portion is formed, and forming a flow path of the coolant together with the first tube portion;
- and
- a protective film covering an inner surface of the first tube portion and formed of hard gold.
3 more elements
Dependencies are inferred from the claim text.