Title:
An x-ray high-voltage generator and an X-ray CT scanner
Document Type and Number:
Japanese Patent JP6173700
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an X-ray high voltage apparatus and an X-ray CT apparatus capable of providing stabilized tube voltage waveforms even when characteristics of the X-ray tube change.SOLUTION: An inverter control circuit in an X-ray high voltage apparatus according to the embodiment changes the voltage value of the voltage output to an X-ray tube in synchronization with the rotation of a cradle. An output voltage detection divided-voltage resistor in the X-ray high voltage apparatus detects the voltage whose voltage value was changed by the inverter control circuit. A sample-and-hold circuit acquires the voltage value of the voltage detected by the output voltage detection divided-voltage resistor. An error amplifier for correction corrects filament current control in the X-ray tube according to the voltage value of the voltage acquired by the sample-and-hold circuit.
More Like This:
Inventors:
Fumio Ishiyama
Application Number:
JP2013011183A
Publication Date:
August 02, 2017
Filing Date:
January 24, 2013
Export Citation:
Assignee:
Toshiba Medical Systems Corporation
International Classes:
H05G1/34; A61B6/03
Domestic Patent References:
| JP2012100913A | ||||
| JP62064100A | ||||
| JP1197998A | ||||
| JP58189998A | ||||
| JP2012187232A | ||||
| JP63203137A | ||||
| JP54122992A |
Foreign References:
| US20100183117 |
Attorney, Agent or Firm:
Toranomon Intellectual Property Office