X-RAY CT APPARATUS, X-RAY CT APPARATUS COLLIMATOR, AND METHOD OF MANUFACTURING THE X-RAY CT APPARATUS COLLIMATOR

摘要

PROBLEM TO BE SOLVED: To provide an X-ray computed tomography photographing (CT) apparatus collimator by which suitable X-ray collimation is performed by maintaining flatness of each collimator plate without loosing the continuity of X-ray focal point, a method of manufacturing the X-ray CT apparatus, and the X-ray CT apparatus.;SOLUTION: The angle of each collimator plate with respect to an X-ray focal point is determined by fitting the collimator plate into grooves formed in upper and lower supports each having an integral structure. In addition, the warpage of each collimator plate is corrected and its flatness is maintained by fitting the periphery of the collimator plate which is on the X-ray detector side into a corresponding groove of an abutment plate provided on the X-ray detection surface side of the upper and lower supports. Furthermore, each collimator plate is supported by the corresponding grooves of the upper and lower supports and the corresponding groove of the abutment plate at at least three sides.;COPYRIGHT: (C)2007,JPO&INPIT