X-ray imaging apparatus
US8995613B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2011 |
| Grant date | Mar 31, 2015 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K2207/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An X-ray imaging apparatus which takes an image of an object to be detected, comprises: a first grating to form a periodic bright-dark pattern by a Talbot effect, based on an X-ray from an X-ray source; a second grating, disposed at a position where the bright-dark pattern is formed, to block a part of the bright-dark pattern; a detector to detect an X-ray intensity distribution of the X-ray which passed through the second grating; and a calculator to calculate phase information of the X-ray based on the detected X-ray intensity distribution, wherein the second grating includes a first region having a first blocking pattern and a second region having a second blocking pattern, and a direction in which the first blocking pattern blocks a bright section of the bright-dark pattern is different from a direction in which the second blocking pattern blocks the bright section of the bright-dark pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.