Radiation phase image radiographing apparatus
AssigneeFUJIFILM Corporation
InventorKenji Takahashi
Life of this patent
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Abstract
A radiation phase image radiographing apparatus, including a radiation emission unit having multiple radiation sources for emitting radiation onto a subject, the radiation sources being distributed such that radiation emitted from each of the radiation sources and transmitted through the subject forms a part of a projected image of the subject, a first diffraction grating configured to be exposed to the radiation emitted from the multiple radiation sources of the radiation emission unit and to produce a Talbot effect by the exposure, a second diffraction grating for diffracting the radiation diffracted by the first diffraction grating, and a radiation image detector for detecting the radiation diffracted by the second diffraction grating.
Claims25
A radiation phase image radiographing apparatus, comprising:
- a radiation emission unit having multiple radiation sources for emitting radiation onto a subject, the radiation sources being distributed such that radiation emitted from each of the radiation sources and transmitted through the subject forms a part of a projected image of the subject;
- a first diffraction grating configured to be exposed to the radiation emitted from the multiple radiation sources of the radiation emission unit and to produce a Talbot effect by the exposure;
- a second diffraction grating for diffracting the radiation diffracted by the first diffraction grating;
- and
- a radiation image detector for detecting the radiation diffracted by the second diffraction grating,
- wherein a partial phase image is generated with respect to each detection area of the radiation image detector corresponding to an exposure area of the radiation emitted from each radiation source based on image signals corresponding to a plurality of phase components, each detected by each detection area, and a complete phase image is formed by combining the partial phase images.
A radiation phase image radiographing apparatus, comprising:
- a radiation emission unit having multiple radiation sources for emitting radiation onto a subject, the radiation sources being distributed such that radiation emitted from each of the radiation sources and transmitted through the subject forms a part of a projected image of the subject;
- a diffraction grating configured to be exposed to the radiation emitted from the multiple radiation sources of the radiation emission unit and to produce a Talbot effect by the exposure;
- and
- a periodic information imaging radiation image detector having an electrode structure that substantially functions as an amplitude type diffraction grating, for detecting periodic information of the radiation diffracted by the diffraction grating.
Dependencies are inferred from the claim text.