Phase grating used to take X-ray phase contrast image, imaging system using the phase grating, and X-ray computer tomography system
US8351570B2 · kind B2 · utility
43Cited by
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7Claims
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Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Apr 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2207/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
To provide a phase grating capable of acquiring, in photographing of an X-ray phase contrast image by use of X-ray with two wavelengths, an X-ray phase contrast image by a phase grating in the same size as when a single wavelength is used, provided is a phase grating used when an X-ray is directed to take an X-ray phase contrast image, the phase grating including a periodic structure for generating a phase difference between an X-ray transmitted through the structure and an X-ray not transmitted through the structure. The periodic structure has different periods in a plurality of directions in a same surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.