DATA MESURING METHOD FOR POSITION COMPENSATION OF COMPUTED TOMOGRAPHY

摘要

PURPOSE: A method for measuring the position compensation data of a CT device and a position compensation method are provided to precisely do a scan by reconfiguring geometrical position compensation data by using an image reconfiguration module. CONSTITUTION: When an X ray penetrates a plurality of spherical targets, the targets are not overlapped. A measurement phantom is located at a scan region between an X ray generator and an X ray detector and is scanned. Data about a rotation track is obtained. Position compensation data is simply obtained by using the data about the rotation track.