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US 2019/0293577 A1Published application
X-ray Phase Imaging Apparatus
AssigneeShimadzu Corporation
InventorsAkira HORIBA, Taro SHIRAI, Takahiro DOKI, Satoshi SANO
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Abstract
This X-ray phase imaging apparatus (100) includes a controller (5) that generates a dark field image (Iv) with respect to each of a plurality of relative positions between a subject (S) and an imaging grating (G1) changed by an adjustment mechanism (3) to acquire a contrast of a region of interest (ROI) in the dark field image (Iv), and controls the adjustment mechanism (3) to adjust a relative position between the subject (S) and the imaging grating (G1) based on the acquired contrast.
Claims9
An X-ray phase imaging apparatus comprising:
- an X-ray source that radiates X-rays to a subject;
- an imaging grating that generates a grating image by transmitting the X-rays radiated to the subject from the X-ray source;
- a detector that detects the X-rays that have been transmitted through the imaging grating;
- an adjustment mechanism that changes and adjusts a relative position between the subject and the imaging grating;
- and
- a controller that generates a dark field image representing a change in X-ray sharpness between a case in which the subject is present and a case in which the subject is not present based on signals of the X-rays detected by the detector with respect to each of a plurality of relative positions between the subject and the imaging grating changed by the adjustment mechanism to acquire a contrast of a region of interest in the dark field image, and controls the adjustment mechanism to adjust the relative position between the subject and the imaging grating based on the acquired contrast.
3 more elements
Dependencies are inferred from the claim text.