Patent ID: 6674836
Filing Date: 2004-01-06
Classification: A61B,H05G

Abstract:
An X-ray computer tomography apparatus comprising:a static gantry section; a rotatable gantry section which is provided on said static gantry section in a rotatable manner and has an X-ray tube for generating X rays; a frequency converting circuit which is connected to an alternating-current power source and converts the output voltage from the alternating-current power source into a desired high-frequency voltage; a high-voltage transformer which transmits the output of said frequency converting circuit from said static gantry section to said rotatable gantry section and steps up the output to a desired high voltage; and a rectifier circuit which converts the alternating-current voltage outputted from said high-voltage transformer into a direct-current voltage and supplies the direct-current voltage to said X-ray tube, wherein said high-voltage transformer including: a primary-side which is provided on said static gantry section and to which the output of said frequency converting circuit is supplied, and a resonance circuit with a capacitor connected to a winding of a secondary-side, which is provided on said rotatable gantry section and generates said high voltage.