X-ray or gamma ray systems or devices – Specific application – Holography or interferometry
Reexamination Certificate
2011-08-30
2011-08-30
Thomas, Courtney (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Holography or interferometry
C378S062000
Reexamination Certificate
active
08009797
ABSTRACT:
An X-ray imaging apparatus includes a phase grating, an absorption grating, a detector, and an arithmetic unit. The arithmetic unit executes a Fourier transform step of performing Fourier transform for an intensity distribution of a Moiré acquired by the detector, and acquiring a spatial frequency spectrum. Also, the arithmetic unit executes a phase retrieval step of separating a spectrum corresponding to a carrier frequency from a spatial frequency spectrum acquired in the Fourier transform step, performing inverse Fourier transform for the separated spectrum, and acquiring a differential phase image.
REFERENCES:
patent: 7180979 (2007-02-01), Momose
patent: 2005/0117699 (2005-06-01), Yoneyama
patent: 2005/0286680 (2005-12-01), Momose
patent: 2008/0019482 (2008-01-01), Yoneyama et al.
patent: 2003-090807 (2003-03-01), None
patent: 2005-152500 (2005-06-01), None
patent: 2008-026098 (2008-02-01), None
patent: 2008-200359 (2008-09-01), None
patent: 2008-200360 (2008-09-01), None
patent: 2009-244260 (2009-10-01), None
patent: 2004-058070 (2004-07-01), None
patent: 2009113726 (2009-09-01), None
Takeda et al., “Fourier-transform Method of Fringe-Pattern Analysis for Computer-Based Topography and Interferometry,” University of Electrocommunications, Jan. 1982, vol. 72, pp. 156-160.
Takeda et al., “Lateral Aberration Measurements with a Digital Talbot Interferometer,” Jun. 1984, vol. 23, pp. 1760-1764.
International Search Report for International Application PCT/JP2009/068434.
Written Opinion (and translation thereof) of the International Searching Authority for International Application PCT/JP2009/068434.
Den Toru
Itoh Hidenosuke
Nagai Kentaro
Ouchi Chidane
Canon Kabushiki Kaisha
Canon U.S.A. Inc. I.P. Division
Thomas Courtney
LandOfFree
X-ray imaging apparatus, X-ray imaging method, and X-ray... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with X-ray imaging apparatus, X-ray imaging method, and X-ray..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray imaging apparatus, X-ray imaging method, and X-ray... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2768560