Provided is an X-ray imaging system capable of performing X-ray imaging quickly. The X-ray imaging system is provided with: an X-ray tube device including a cathode and an anode, the X-ray tube device being capable of performing X-ray imaging by irradiating an imaging target with X-rays in a state of rotating the anode; a light irradiation device including a collimator defining an X-ray irradiation range of the X-rays with respect to the imaging target, a visible light irradiation unit for emitting visible light to the imaging target and a light irradiation operation unit for performing an operation for making the visible light irradiation unit in the light irradiation state; and a controller for controlling operations of the X-ray tube device and the light irradiation device. The controller rotates the anode at an imaging possible rotation speed capable of performing X-ray imaging when the light irradiation operation unit is operated.

Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.

The present invention relates to a rotor for an X-ray tube. In order to provide further possibilities for weight reduction in X-ray tubes for providing an increase of rotation frequency, a rotor (10) for an X-ray tube is provided, comprising a rotational structure (12) with a plurality of electrically conducting elements (14), the ends thereof connected to each other and provided such that an external stator magnetic field generated by a stator induces a current in the electrically conducting elements, which current generates a rotor magnetic field to interact with the stator magnetic field. At least the plurality of electrically conducting elements is made from carbon composite based material.

The embodiments relate to a rotary anode arrangement with a rotary anode, a rotor for driving the rotary anode and a stator, which exerts a torque on the rotor. The stator includes at least one coil for generating a first magnetic field and at least one permanent magnet for generating a second magnetic field. The embodiments also relate to an X-ray tube with the rotary anode arrangement. The embodiments offer the advantage that a high electromagnetic utilization is possible with a synchronous motor that is excited by permanent magnets.

Technology is described for a magnetic lift device for an x-ray tube. In one example, an anode assembly includes an anode, a bearing assembly, a ferromagnetic shaft, and a lift electromagnet. The anode is configured to receive electrons emitted by a cathode. The bearing assembly is configured to stabilize the anode during a rotation of the anode. The ferromagnetic shaft is coupled to the anode and has an axis of rotation that is substantially collinear with an axis of rotation of the anode. The lift electromagnet is configured to apply a magnetic force to the ferromagnetic shaft in a radial direction.

Provided is an X-ray imaging system capable of performing X-ray imaging quickly. The X-ray imaging system is provided with: an X-ray tube device including a cathode and an anode, the X-ray tube device being capable of performing X-ray imaging by irradiating an imaging target with X-rays in a state of rotating the anode; a light irradiation device including a collimator defining an X-ray irradiation range of the X-rays with respect to the imaging target, a visible light irradiation unit for emitting visible light to the imaging target and a light irradiation operation unit for performing an operation for making the visible light irradiation unit in the light irradiation state; and a controller for controlling operations of the X-ray tube device and the light irradiation device. The controller rotates the anode at an imaging possible rotation speed capable of performing X-ray imaging when the light irradiation operation unit is operated.

The disclosure relates to a rotating-anode bearing for an X-ray tube comprising a rotor shaft extending along a longitudinal axis from a first axial end to a second axial end and supported to be rotatable about the longitudinal axis; wherein the rotor shaft has an anode holder in the area of the first axial end; and the anode holder comprises a flange which has a larger diameter than at least an adjacent section of the rotor shaft. The rotating-anode bearing according to the disclosure wherein the rotor shaft together with the flange is made as an integrally forged part.

Various methods and systems are provided for an x-ray imaging system. In one example, a method for decelerating a rotor of an x-ray tube of an imaging system includes controlling and/or monitoring a speed and position of the rotor, passing the rotor through a first position where a force exerted on the rotor, is less than Earth's gravitational pull, the force due to a combination of gravity and radial acceleration, and initiating a predefined deceleration profile to decelerate the rotor to a halt when the x-ray tube passes through the first position.

Various methods and systems are provided for an x-ray imaging system. In one example, an x-ray tube of the imaging system includes a rotor with a core forming a continuous unit with at least one of a retention sleeve and a bearing assembly sleeve. The rotor further includes one or more magnets disposed in the core and maintained in place by the retention sleeve.

A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.