Patent ID: 9295437
Filing Date: 2016-03-29
CPC Classification: A61B,G21K

Claim Text:
1. An X-ray imaging apparatus comprising: an X-ray tube configured to generate an X-ray that is transmitted through an examinee; a photon counting detector configured to detect the X-ray generated from the X-ray tube and transmitted through the examine; wherein the photon counting detector detects an X-ray photon of the X-ray; a support mechanism configured to support the X-ray tube and the photon counting detector; a data acquisition unit configured to acquire a dataset relating to a count of the X-ray photon for each of a plurality of energy bands included in an energy spectrum of the X-ray generated from the X-ray tube; a wedge filter unit arranged between the X-ray tube and the examinee, the wedge filter unit configured to attenuate a dose according to an X-ray from the X-ray tube and include a plurality of filter modules having a configuration capable of individually changing an X-ray transmission path length in an X-ray shielding material; and a controller configured to individually operate the plurality of filter modules such that a dose; according to an X-ray incident to the photon counting detector from the X-ray tube via the examinee, is set based on a photon detection rate of the photon counting detector and the dose is distributed substantially uniformly in spatial.