X-RAY CT APPARATUS, X-RAY DETECTION METHOD USING X-RAY CT APPARATUS, X-RAY SENSOR SIGNAL PROCESSING SYSTEM, AND X-RAY SENSOR SIGNAL PROCESSING METHOD

摘要

PPROBLEM TO BE SOLVED: To provide an X-ray CT apparatus capable of preventing quality deterioration of a CT image and enhancing quality of an image photographed by the X-ray CT apparatus by suppressing output variation of X-ray sensors while enhancing measuring sensitivity in detection of X-rays. PSOLUTION: The X-ray CT apparatus includes an X-ray emission means for emitting an X-ray to an object to be tested, a plurality of X-ray sensors for detecting X-rays transmitted through the object to be tested, and a signal processing device for processing output signals of the X-ray sensors. The signal processing device includes a bias current supply means for supplying a bias current of a forward direction to the X-ray sensor and supplying a bias current equal to the respective X-ray sensors. Quality degradation of the CT image is prevented and quality of the photographed image by the X-ray CT apparatus can be improved by improving the measuring sensitivity in the detection of X-rays, and suppressing the output variation of the X-ray sensors. PCOPYRIGHT: (C)2009,JPO&INPIT