COMPUTED TOMOGRAM FORMING METHOD BY COMPUTED TOMOGRAPHY SYSTEM AND COMPUTED TOMOGRAPHY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a computed tomogram forming method by a computed tomography system which has a jumping focal point.;SOLUTION: The computed tomogram forming method by the computed tomography system is constituted such that an X-ray tube (R) is circularly or spirally moved around a z-axis to scan an object (B) in combination with a detector (D), the X-ray tube (R) has one jumping focal point which has two or more relatively different jumping focal point positions (F₁-F₆) to the X-ray tube, two or more parallel data sets are formed from the obtained data of the detector, and a tomogram is reconstructed from the parallel data sets, wherein different relative positions (= the jumping focal point positions) of the current jumping focal point (F) in a radial direction to the X-ray tube is considered for each time of formation of the parallel data sets.;COPYRIGHT: (C)2006,JPO&NCIPI