An inverter circuit of an embodiment includes a plurality of semiconductor switching elements constituting a bridge circuit; a transformer connected to the output end of the bridge circuit; an electric current detector that detects whether an electric current carried through at least one of the switching elements exceeds a predetermined value; a pulse generator circuit that transmits a periodic pulse signal; a flip-flop circuit connected to the detector and the pulse generator circuit; a field effect transistor (FET) turned on or off by a signal from the flip-flop circuit; and a gate signal generator circuit connected to the FET and the bridge circuit. The flip-flop circuit inverts an output signal by a detection signal of the detector and interrupts the output of the bridge circuit. The gate signal generator circuit switches the switching element at the diagonal position of the bridge circuit based on a signal from the FET.

Some embodiments include a system, comprising: an enclosure configured to enclose a vacuum; a cathode disposed within the enclosure; an anode disposed within the enclosure configured to receive a beam of electrons from the cathode; a motor disposed within the enclosure and configured to rotate the anode in response to a drive input; and a circuit electrically connected to the drive input, and configured to generate a phase signal based on a voltage of the drive input and a current of the drive input, the phase signal indicating a phase difference between the voltage of the drive input and the current of the drive input.

A management device (70) includes a degree-of-wear detection unit (72) for detecting a degree-of-wear of an emitter from a voltage, a current, or an energization time of the emitter, an adhesion amount estimation unit (73) for estimate an adhesion amount of a conductive material onto an envelope based on the degree-of-wear of the emitter and a relation between the degree-of-wear of the emitter and an adhesive amount of the conductive material onto the envelope stored in a storage unit (71), and a creeping discharge estimation unit (74) for estimating the probability of occurrence of a creeping discharge based on the degree-of-wear of the emitter, the relation between the degree-of-wear of the emitter and the adhesion amount of the conductive material onto the envelope stored in the storage unit (71), and a relation between the adhesion amount of the conductive material onto the envelope and the probability of occurrence of the creeping discharge onto the envelope stored in the storage unit (71).

The X-ray generator includes a booster for boosting a first DC voltage supplied from a voltage source to a second DC voltage higher than the first DC voltage, at least one capacitor for receiving the second DC voltage and generating a charging voltage on the basis of the second DC voltage, a converter for converting the charging voltage into a driving voltage, an X-ray source for receiving the driving voltage and emitting X-rays according to the driving voltage, and a controller for controlling the booster, the converter, and the X-ray source. The controller calculates a cooling time required for cooling the X-ray source to a predetermined temperature or lower, determines the magnitude of the second DC voltage according to the cooling time, and applies the second DC voltage to the capacitor for the cooling time.

Various methods and systems are provided for a radiation shielding component including a plurality of parts fused together by metal infiltrated through junctions between adjacent, interconnected parts. In one embodiment, members on a side of a panel may be interlocked with indentations on a side of another and then metal may be infiltrated through a junction between the two panels to fuse the adjacent panels.

Various methods and systems are provided for a radiation shielding component including a plurality of parts fused together by metal infiltrated through junctions between adjacent, interconnected parts. In one embodiment, members on a side of a panel may be interlocked with indentations on a side of another and then metal may be infiltrated through a junction between the two panels to fuse the adjacent panels.

Various methods and systems are provided for a radiation shielding component including a plurality of parts fused together by metal infiltrated through junctions between adjacent, interconnected parts. In one embodiment, members on a side of a panel may be interlocked with indentations on a side of another and then metal may be infiltrated through a junction between the two panels to fuse the adjacent panels.

Various methods and systems are provided for a radiation shielding component including a plurality of parts fused together by metal infiltrated through junctions between adjacent, interconnected parts. In one embodiment, members on a side of a panel may be interlocked with indentations on a side of another and then metal may be infiltrated through a junction between the two panels to fuse the adjacent panels.

The invention proposes an insulator within an X-ray tube having a vacuum side and an ambient side and a feedthrough substantially coinciding with an axis of symmetry at the vacuum side and an axis of symmetry at the ambient side. The axis of symmetry at the vacuum side and the axis of symmetry at the ambient side have an angle of at least 5°, preferably 90°, with respect to each other. An X-ray source comprising such an insulator is presented as well and the present invention also extends to a medical imaging apparatus for generating X-ray images of a patient thereby using an X-ray source with such an insulator. In an embodiment, an X-ray source is provided wherein the insulator is plugged to an electrical connector at the ambient surface.

The invention proposes an insulator within an X-ray tube having a vacuum side and an ambient side and a feedthrough substantially coinciding with an axis of symmetry at the vacuum side and an axis of symmetry at the ambient side. The axis of symmetry at the vacuum side and the axis of symmetry at the ambient side have an angle of at least 5°, preferably 90°, with respect to each other. An X-ray source comprising such an insulator is presented as well and the present invention also extends to a medical imaging apparatus for generating X-ray images of a patient thereby using an X-ray source with such an insulator. In an embodiment, an X-ray source is provided wherein the insulator is plugged to an electrical connector at the ambient surface.