Systems and methods for X-ray imaging
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorsXi Zhang, Patrick Kling, Yun Zou, Alexander Zamyatin
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Abstract
A system and method for generating X-rays are disclosed. The method may include emitting an electron beam from a cathode to a focal track of a rotating target. The method may further include deflecting the electron beam onto a first region of the focal track at a first time, and deflecting the electron beam onto a second region of the focal track at a second time. The first region of the focal track may be separated from the second region of the focal track. The method may further include generating X-rays in response to the electron beam deflected onto the first region of the focal track or onto the second region of the focal track.
Claims20
An imaging device, comprising:
- a cathode configured to generate an electron beam;
- an anode including a rotating target, the rotating target having a focal track and configured to rotate around an axis along a direction, the anode configured to generate X-rays in response to the electron beam impinging on the focal track of the rotating target;
- and
- a deflection device configured to deflect the electron beam onto different regions of the focal track in a periodical manner, wherein the different regions includes a first region and a second region, a distance between the first region and the second region along the direction is a half integer multiple of and larger than a dimension of a detector cell that is configured to detect the X-rays.
A method, comprising:
- emitting an electron beam from a cathode to a focal track of a rotating target, the rotating target configured to rotate around an axis along a direction;
- and
- deflecting the electron beam onto different regions of the focal track in a periodical manner, wherein the different regions includes a first region and a second region, a distance between the first region and the second region along the direction is a half integer multiple of and larger than a dimension of a detector cell that is configured to detect the X-rays.
An imaging system, comprising:
- a gantry having a scanning hole extending along a direction;
- and
- an X-ray tube located on the gantry, the X-ray tube including:
- a cathode configured to generate an electron beam;
- an anode including a rotating target, the rotating target having a focal track and configured to rotate around an axis along the direction, the anode configured to generate X-rays in response to the electron beam impinging on the focal track of the rotating target;
- and
- a deflection device configured to deflect the electron beam onto different regions of the focal track in a periodical manner, wherein the different regions includes a first region and a second region, a distance between the first region and the second region along the direction is a half integer multiple of and larger than a dimension of a detector cell that is configured to detect the X-rays.
Dependencies are inferred from the claim text.