X-RAY COMPUTED TOMOGRAPHY APPARATUS, X-RAY DETECTION APPARATUS, AND X-RAY DETECTION MODULE

摘要

An X-ray computed tomography apparatus includes an X-ray generation circuit generating X-rays, X-ray detection circuit including X-ray detection modules detecting the X-rays for respective energy widths, counting circuit counting a photon originating from the X-rays for the respective energy widths based on an output from the X-ray detection circuit, and reconstruction circuit reconstructing a medical image based on an output from the counting circuit. Each of the X-ray detection modules includes a collimator collimating the X-rays, diffraction cell arranged on a rear surface side of the collimator and diffracting the X-ray at an angle corresponding to an energy of the X-ray, and X-ray detector cells arranged in a predetermined distance away from a rear surface of the collimator, and detecting the diffracted X-ray.

主权项

1. An X-ray computed tomography apparatus comprising:
an X-ray generation circuit configured to generate X-rays; an X-ray detection circuit including a plurality of X-ray detection modules configured to detect X-rays generated by the X-ray generation circuit for respective energy widths; a counting circuit configured to count a photon originating from the X-rays for the respective energy widths based on an output from the X-ray detection circuit; and a reconstruction circuit configured to reconstruct a medical image based on an output from the counting circuit, wherein each of the X-ray detection modules includes: a collimator configured to collimate the X-rays; a diffraction cell arranged on a rear surface side of the collimator and configured to diffract the X-ray at an angle corresponding to an energy of the X-ray; and a plurality of X-ray detector cells arranged in a predetermined distance away from a rear surface of the collimator, and detecting the diffracted X-ray.