X-RAY DATA COLLECTOR AND X-RAY CT APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve S/N of a signal when collecting X-ray signals obtained by converting fan beam data to parallel beam data with an X-ray detector having a plurality of X-ray detection element strings and correcting this signal with a reference X-ray signal. SOLUTION: A first integration means (904) periodically performs successive integration of the detection signals of a plurality of X-ray detection elements respectively constituting a measurement channels in the X-ray detector with a fixed time difference through a fixed period longer than this. A second integration means (906) periodically performs successive integration of the detection signals of the plurality of X-ray detection elements respectively constituting a reference channels in the plurality of detection element strings in the X-ray detector with the same time difference as the time difference and through the same period as the fixed period. A correction means (910) performs X-ray dose correction by a signal of the same integration timing among the signals integrated by the first integration means and integrated by the second integration means. COPYRIGHT: (C)2004,JPO&NCIPI