首页>
外国专利>
X-RAY DIFFERENTIAL PHASE CONTRAST IMAGING USING A TWO-DIMENSIONAL SOURCE GRATING WITH PINHOLE APERTURES AND TWO-DIMENSIONAL PHASE AND ABSORPTION GRATINGS
X-RAY DIFFERENTIAL PHASE CONTRAST IMAGING USING A TWO-DIMENSIONAL SOURCE GRATING WITH PINHOLE APERTURES AND TWO-DIMENSIONAL PHASE AND ABSORPTION GRATINGS
展开▼
机译：X射线微分相衬成像的二维源光栅与针孔和二维相和吸收光栅。
展开▼
页面导航
摘要
著录项
相似文献
摘要
An x-ray differential phase contrast imaging apparatus includes an x-ray source, a source grating, a diffraction grating diffracting x-rays from the x-ray source and source grating and a detector detecting x-rays from the diffraction grating, wherein the source grating includes first x-ray transmissive apertures transmitting x-rays to thereby form a first interference pattern by being diffracted at the diffraction grating, and second x-ray transmissive apertures transmitting x-rays to thereby form a second interference pattern by being diffracted at the diffraction grating, wherein the first and second x-ray transmissive apertures are pinhole apertures which are disposed so that at least part of the first and second interference pattern overlap and the positions of x-ray regions in the first interference pattern differ from the positions of x-ray regions in the second interference pattern, and wherein a combined pattern is formed by the first interference pattern and the second interference pattern.
展开▼
