RADIATION TOMOGRAPHY APPARATUS, RADIATION DETECTION DEVICE, AND SPATIAL RESOLUTION CHANGEOVER METHOD IN RADIATION TOMOGRAPHY

摘要

PROBLEM TO BE SOLVED: To change over spatial resolution with a simple configuration, in radiation tomography.;SOLUTION: This radiation detection device 28 includes: a plurality of radiation detection elements 56i disposed opposite to a radiation source 21; and a plurality of collimator plates 55 partitioning the plurality of radiation detection elements 56i in a channel direction (a CH direction) of the radiation detection elements, erected such that the plate face of each of the plurality of collimator plates 55 extends along a radiation direction from the radiation source 21. By moving a plurality of radiation absorption rods 57 extending along the end side of each end part close to the radiation source 21 in the plurality of collimator plates 55 to first positions covering the end parts and second positions opening the end parts along the end sides of the end parts, the radiation detection device 28 changes the width of each opening formed by each of the plurality of collimator plates 55.;COPYRIGHT: (C)2013,JPO&INPIT