Patent ID: 9014340
Filing Date: 2015-04-21
Classification: A61B,G21K

Abstract:
1. A radiation tomography system, comprising: a radiation source configured to rotate around a subject to be imaged and apply radiation to the subject; a plurality of radiation detecting elements disposed opposite the radiation source; a plurality of collimator plates partitioning the plurality of radiation detecting elements in a channel direction of the radiation detecting elements, the plurality of collimator plates erected such that plate surfaces of each of the plurality of collimator plates extend along a direction of radiation from the radiation source; and an aperture-width changing unit configured to change a width of each aperture formed by the plurality of collimator plates by moving a plurality of radiation absorbing members along respective end sides of the collimator plates close to the radiation source, the plurality of radiation absorbing members moveable between a first position at which the end sides are covered and a second position at which the end sides are exposed.