A method for compensating the settings of a pulsed X-ray system. The method selects current, voltage, and intended pulse width settings for the X-ray pulses. The method then compensates the selected pulse width setting for the set voltage and tube current, in accordance with at least one stored normalized value at a predetermined temperature, taking into account the environmental temperature of the electric circuitry of an X-ray tank of the X-ray system. The at least one normalized value is obtained in a calibration step based on the actual pulse width and the difference thereof with the intended pulse width at a predetermined temperature, taking into account the internal temperature of the X-ray tank.

A method for compensating the settings of a pulsed X-ray system. The method selects current, voltage, and intended pulse width settings for the X-ray pulses. The method then compensates the selected pulse width setting for the set voltage and tube current, in accordance with at least one stored normalized value at a predetermined temperature, taking into account the environmental temperature of the electric circuitry of an X-ray tank of the X-ray system. The at least one normalized value is obtained in a calibration step based on the actual pulse width and the difference thereof with the intended pulse width at a predetermined temperature, taking into account the internal temperature of the X-ray tank.

A voltage-multiplier can be more compact by arrangement in a stack of separate voltage-multiplier-stages. Each of the voltage-multiplier-stages can include electronic-components on a planar-face of a circuit-board. The planar-face of each circuit-board can be parallel with respect to other circuit-boards in the stack. The electronic-components on each voltage-multiplier-stage can be configured to multiply an input-voltage to provide an output-voltage with a higher voltage than the input-voltage. Each voltage-multiplier-stage in the stack can be electrically coupled to two adjacent voltage-multiplier-stages, except that two outermost voltage-multiplier-stages of the stack can be electrically coupled to only one adjacent voltage-multiplier-stage of the stack.

A voltage-multiplier can be more compact by arrangement in a stack of separate voltage-multiplier-stages. Each of the voltage-multiplier-stages can include electronic-components on a planar-face of a circuit-board. The planar-face of each circuit-board can be parallel with respect to other circuit-boards in the stack. The electronic-components on each voltage-multiplier-stage can be configured to multiply an input-voltage to provide an output-voltage with a higher voltage than the input-voltage. Each voltage-multiplier-stage in the stack can be electrically coupled to two adjacent voltage-multiplier-stages, except that two outermost voltage-multiplier-stages of the stack can be electrically coupled to only one adjacent voltage-multiplier-stage of the stack.

A high voltage generator including a Cockcroft-Walton circuit structured to receive alternating-current power supplied from an alternating-current power source and apply a potential difference to a load includes: three or more circuit boards arranged at intervals in a thickness direction thereof; capacitors, each of which is shaped flat and mounted to a corresponding one of the circuit boards; and diodes, each of which is connected to corresponding ones of the circuit boards. Out of the three or more circuit boards, each circuit board other than two circuit boards disposed at both ends of the arrangement of the three or more circuit boards includes indentations. Each of the diodes is disposed in a corresponding one of the indentations.

An X-ray tube is provided with: a cathode and an anode sealed inside a vacuum envelope; and an ion-collecting conductor attached to the vacuum envelop so as to be in contact with an internal space of the vacuum envelope. A first current sensor measures a value of a first current flowing between the ion-collecting conductor and a node for supplying potential for attracting positive ions in the vacuum envelope. A second current sensor measures a value of a second current flowing between the anode and the cathode. A control circuit generates diagnostic information on the degree of vacuum of the X-ray tube based on a current ratio file of the first current value (Ii) measured by the first current sensor to the second current value (Ie) measured by the second current sensor.

An X-ray tube is provided with: a cathode and an anode sealed inside a vacuum envelope; and an ion-collecting conductor attached to the vacuum envelop so as to be in contact with an internal space of the vacuum envelope. A first current sensor measures a value of a first current flowing between the ion-collecting conductor and a node for supplying potential for attracting positive ions in the vacuum envelope. A second current sensor measures a value of a second current flowing between the anode and the cathode. A control circuit generates diagnostic information on the degree of vacuum of the X-ray tube based on a current ratio file of the first current value (Ii) measured by the first current sensor to the second current value (Ie) measured by the second current sensor.

There is provided voltage switching circuitry (100) for an X-ray tube (10). The voltage switching circuitry comprises a plurality of waveform generators (102) connectable to an output (14) of a voltage generator (12) for supplying an operating voltage to the X-ray tube. Each waveform generator is configured to generate a waveform. At least a first said waveform generator is configured to generate a first sinusoidal waveform having a first frequency and at least a second said waveform generator is configured to generate a second sinusoidal waveform having a second frequency. The second frequency differs from the first frequency by at least a factor of two. The voltage switching circuitry is configured to combine the waveforms at the output to switch the operating voltage between at least two different voltage levels. A plurality of the waveform generators (102) further comprise resonators (202, 204) and amplifiers (206) configured to excite resonance in the respective resonators, wherein the voltage switching circuitry (100) is further configured to switch at least one of the amplifiers which is not being used to excite resonance to generate harmonics for reducing over- or undervoltage when switching the opening voltage between the at least two different voltage levels. The voltage switching circuitry further comprises control circuitry configured to control the switching of the amplifiers.

There is provided voltage switching circuitry (100) for an X-ray tube (10). The voltage switching circuitry comprises a plurality of waveform generators (102) connectable to an output (14) of a voltage generator (12) for supplying an operating voltage to the X-ray tube. Each waveform generator is configured to generate a waveform. At least a first said waveform generator is configured to generate a first sinusoidal waveform having a first frequency and at least a second said waveform generator is configured to generate a second sinusoidal waveform having a second frequency. The second frequency differs from the first frequency by at least a factor of two. The voltage switching circuitry is configured to combine the waveforms at the output to switch the operating voltage between at least two different voltage levels. A plurality of the waveform generators (102) further comprise resonators (202, 204) and amplifiers (206) configured to excite resonance in the respective resonators, wherein the voltage switching circuitry (100) is further configured to switch at least one of the amplifiers which is not being used to excite resonance to generate harmonics for reducing over- or undervoltage when switching the opening voltage between the at least two different voltage levels. The voltage switching circuitry further comprises control circuitry configured to control the switching of the amplifiers.

The embodiments of the present disclosure provide a power management system of a mobile X-ray machine and a control method thereof. The power management system comprises a power module group; a main control module being connected with a upper machine, and configured to receive an action signal sent by the upper machine, acquire status information of the power module group, and output a control signal; a functional component power pack being connected with the power module group and the main control module, and configured to convert electrical energy of the power module group according to the control signal and output converted energy to a functional component of a high-voltage generator.