A stationary anode for an X-ray generator, in particular of an X-ray imaging device or an X-ray therapy or spectroscopy device, includes a main anode body and an internal cooling duct, running in the axial direction, for conveying a cooling fluid to a heat exchange surface of the main anode body. A nozzle, disposed at the end of the cooling duct, is inventively positioned with respect to the heat exchange surface via stop elements such that, between the heat exchange surface and the nozzle, a gap is formed which extends over an angular range of 360 about the axial direction.

A stationary anode for an X-ray generator, in particular of an X-ray imaging device or an X-ray therapy or spectroscopy device, includes a main anode body and an internal cooling duct, running in the axial direction, for conveying a cooling fluid to a heat exchange surface of the main anode body. A nozzle, disposed at the end of the cooling duct, is inventively positioned with respect to the heat exchange surface via stop elements such that, between the heat exchange surface and the nozzle, a gap is formed which extends over an angular range of 360 about the axial direction.

A method and apparatus for preheating a bulb tube of medical equipment is provided. The method includes: selecting a scanning condition which satisfies an equipment calibration condition, as a preheating condition for the bulb tube, from scanning conditions used by the medical equipment; selecting a new preheating condition if an accumulated thermal capacity according to selected preheating conditions is smaller than a target thermal capacity, until the accumulated thermal capacity reaches the target thermal capacity, wherein the accumulated thermal capacity indicates a sum of a thermal capacity estimated to be generated when the bulb tube is preheated according to the selected preheating conditions, and the target thermal capacity indicates a thermal capacity required to complete the preheating of the bulb tube; preheating the bulb tube according to selected preheating conditions and executing an equipment calibration corresponding to each of the preheating conditions during the bulb tube preheating.

A method and apparatus for preheating a bulb tube of medical equipment is provided. The method includes: selecting a scanning condition which satisfies an equipment calibration condition, as a preheating condition for the bulb tube, from scanning conditions used by the medical equipment; selecting a new preheating condition if an accumulated thermal capacity according to selected preheating conditions is smaller than a target thermal capacity, until the accumulated thermal capacity reaches the target thermal capacity, wherein the accumulated thermal capacity indicates a sum of a thermal capacity estimated to be generated when the bulb tube is preheated according to the selected preheating conditions, and the target thermal capacity indicates a thermal capacity required to complete the preheating of the bulb tube; preheating the bulb tube according to selected preheating conditions and executing an equipment calibration corresponding to each of the preheating conditions during the bulb tube preheating.

An X-ray imaging apparatus operates by selecting an appropriate exposure sensitivity corresponding to the X-ray detector to be used. In the apparatus, an exposure sensitivity corresponding to the flat panel detectors used for an X-ray imaging is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit of the console, and the selected exposure sensitivity is displayed on the display unit of the high-voltage unit. An exposure control is executed based on the exposure sensitivity corresponding to the flat panel detectors used for the X-ray imaging, which is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit. The exposure control unit of the high-voltage unit suspends the X-ray irradiation from the X-ray tube when an integrated value of the X-ray detected by the X-ray dose sensor reaches to the setting-value set relative to the selected exposure sensitivity.

An X-ray imaging apparatus operates by selecting an appropriate exposure sensitivity corresponding to the X-ray detector to be used. In the apparatus, an exposure sensitivity corresponding to the flat panel detectors used for an X-ray imaging is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit of the console, and the selected exposure sensitivity is displayed on the display unit of the high-voltage unit. An exposure control is executed based on the exposure sensitivity corresponding to the flat panel detectors used for the X-ray imaging, which is selected from multiple exposure sensitivities stored in an exposure sensitivity memory unit. The exposure control unit of the high-voltage unit suspends the X-ray irradiation from the X-ray tube when an integrated value of the X-ray detected by the X-ray dose sensor reaches to the setting-value set relative to the selected exposure sensitivity.

Provided is a mobile X-ray apparatus including: an X-ray radiator configured to emit X-rays; a battery configured to supply power to the X-ray radiator; a charger configured to charge the battery; a battery management system (BMS) configured to receive power from the battery or the charger and output a first signal based on a state of the battery; and a first switch configured to be turned off according to the first signal to prevent power from being supplied to the BMS, wherein the first switch is further configured to be turned on by power supplied from the charger when the BMS is shut down.

Methods of reconstructing a CT image and CT devices are provided in examples of the present disclosure. In one aspect, scanning parameters for a CT device is obtained to perform a scan on a subject, a target reference detector is determined from the reference detectors according to the scanning parameters; the scan is performed on the subject according to the scanning parameters to obtain detection data outputted by the detector and reference detection data outputted by the target reference detector; energy data of the original X-rays emitted by the bulb tube with the scanning parameters is determined according to the reference detection data outputted by the target reference detector; the detection data outputted by the detector is corrected based on the energy data of the original X-rays to obtain scanning data; and the CT image of the subject is reconstructed by performing image reconstruction based on the scanning data.

Provided is a mobile X-ray apparatus including: an X-ray radiator configured to emit X-rays; a battery configured to supply power to the X-ray radiator; a charger configured to charge the battery; a battery management system (BMS) configured to receive power from the battery or the charger and output a first signal based on a state of the battery; and a first switch configured to be turned off according to the first signal to prevent power from being supplied to the battery management system (BMS), wherein the first switch is further configured to be turned on by power supplied from the charger when the battery management system (BMS) is shut down.

Provided is a mobile X-ray apparatus including: an X-ray radiator configured to emit X-rays; a battery configured to supply power to the X-ray radiator; a charger configured to charge the battery; a battery management system (BMS) configured to receive power from the battery or the charger and output a first signal based on a state of the battery; and a first switch configured to be turned off according to the first signal to prevent power from being supplied to the BMS, wherein the first switch is further configured to be turned on by power supplied from the charger when the BMS is shut down.