Active rise and fall time compensation algorithm
AssigneeKoninklijke Philips N.V.
InventorJeroen Van Brussel
Life of this patent
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Abstract
A method is provided for compensating the settings of a pulsed X-ray system. A current, voltage and intended pulse width settings are selected for the X-ray pulses to be provided. Then, the selected pulse width setting for the set voltage and tube current is compensated, in accordance with stored normalized value or values at a predetermined temperature, taking into account the environmental temperature of the electric circuitry of the X-ray tank. The normalized values are obtained in a calibration step from the actual or effective pulse width and the difference thereof with the intended width, normalizing said value with the temperature of the circuitry providing pulsed voltage and current to the source.
Claims20
A method of providing X-ray pulses, the method comprising:
- selecting a setting for each of voltage, current, and intended pulse width for providing the X-ray pulses by an X-ray system;
- compensating the intended pulse width setting for the voltage setting and the current setting based on internal temperature of an X-ray tank of the X-ray system and a normalized value related to the pulse width, wherein the normalized value is determined based on a deviation between (i) an intended pulse width for an applied current and an applied voltage and (ii) an actual pulse width measured for the applied current and the applied voltage at a predetermined temperature of the X-ray system;
- and
- applying the compensated pulse width setting to provide the X-ray pulses.
A system for providing X-ray pulses, the system comprising:
- a processor configured to:
- select a setting for each of voltage, current, and intended pulse width for providing the X-ray pulses by an X-ray system,
- compensate the intended pulse width setting for the voltage setting and the current setting based on internal temperature of an X-ray tank of the X-ray system and a normalized value related to the pulse width, wherein the normalized value is determined based on a deviation between (i) an intended pulse width for an applied current and an applied voltage and (ii) an actual pulse width measured for the applied current and the applied voltage at a predetermined temperature of the X-ray system, and
- apply the compensated pulse width setting to provide the X-ray pulses.
A non-transitory computer-readable storage medium having stored a computer program comprising instructions, which, when executed by a processor, cause the processor to:
- select a setting for each of voltage, current, and intended pulse width for providing the X -ray pulses by an X-ray system;
- compensate the intended pulse width setting for the voltage setting and the current setting based on internal temperature of an X-ray tank of the X-ray system and a normalized value related to the pulse width, wherein the normalized value is determined based on a deviation between (i) an intended pulse width setting for an applied current and an applied voltage and (ii) an actual pulse width measured for the applied current and the applied voltage at a predetermined temperature of the X-ray system;
- and
- apply the compensated pulse width setting to provide the X-ray pulses.
Dependencies are inferred from the claim text.