Patent · US Active

X-ray imaging apparatus

US9066704B2 · kind B2 · utility

3Cited by

4References

12Claims

0Family size

Assignee

Canon Kabushiki Kaisha · JP

Inventors

Toru Den · Tokyo, JP
Kimiaki Yamaguchi · Ikoma, JP
Chidane Ouchi · Utsunomiya, JP

Key dates

Filing date	Mar 9, 2012
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Jan 5, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG21K2207/005
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An X-ray imaging apparatus comprises a grating configured to form an interference pattern by diffracting X-rays from an X-ray source, a amplitude grating configured to partly shield X-rays forming the interference pattern, and an X-ray detector configured to detect an intensity distribution of X-rays from the amplitude grating. The amplitude grating is comprised of a central area and a peripheral area and the peripheral area shows an X-ray transmittance higher than the central area relative to X-rays perpendicularly entering the amplitude grating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.