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US 10,614,996 B2Granted
X-ray system and method of inspecting X-ray tube
AssigneeCanon Electron Tubes & Devices Co., Ltd.
InventorTetsuya Yonezawa
Life of this patent
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Abstract
According to one embodiment, an X-ray system includes an X-ray tube including a filament in which a filament current according to a tube current flows, a filament current monitoring unit monitoring the filament current, a tube current monitoring unit monitoring the tube current, and an inspection unit determining whether the tube current falls within a predetermined set range in X-ray emission.
Claims3
An X-ray system comprising:
- an X-ray tube comprising a filament in which a filament current according to a tube current flows;
- a filament current monitoring unit monitoring the filament current;
- a tube current monitoring unit monitoring the tube current;
- an inspection unit determining whether the tube current falls within a predetermined set range in X-ray emission;
- a filament current varying unit varying the filament current;
- and
- a filament current controller,
- wherein
- the filament current controller includes the filament current monitoring unit, the tube current monitoring unit, the inspection unit, and the filament current varying unit,
- if a result of the inspection of the tube current executed by the inspection unit falls outside the predetermined set range, the filament current varying unit varies the filament current such that the tube current falls within the predetermined set range, and
- if the filament current is varied by the filament current varying unit, the time of replacement of the X-ray tube is presumed by the filament current controller based on the degree of the variation.
8 more elements
An X-ray system comprising:
- an X-ray tube comprising a filament in which a filament current according to a tube current flows;
- a filament current monitoring unit monitoring the filament current;
- a tube current monitoring unit monitoring the tube current;
- an inspection unit determining whether the tube current falls within a predetermined set range in X-ray emission;
- and
- a filament current controller,
- wherein
- the filament current controller includes the filament current monitoring unit, the tube current monitoring unit, and the inspection unit,
- if the filament of the X-ray tube comprises a plurality of filaments, the filament current monitoring unit is configured to monitor the filament current of at least one of the filaments,
- the X-ray system further comprises a filament current varying unit varying the filament current of at least one of the filaments,
- if a result of the inspection of the tube current executed by the inspection unit falls outside the predetermined set range, the filament current varying unit varies the filament current of at least one of the filaments such that the result of the inspection of the tube current falls within the predetermined set range, and
- if the filament current is varied by the filament current varying unit, the time of replacement of the X-ray tube is presumed by the filament current controller based on the degree of the variation.
9 more elements
Dependencies are inferred from the claim text.