X-ray phase, absorption and scatter retrieval using two or more phase contrast images

Author(s)
Kitchen, Marcus J
Paganin, David M
Uesugi, Kentaro
Allison, Beth J
Lewis, Robert A
Hooper, Stuart B
Pavlov, Konstantin M
Publication Date
2010
Abstract
We have developed two phase-retrieval techniques for analyser-based phase contrast imaging that provide information about an object's X-ray absorption, refraction and scattering properties. The first requires rocking curves to be measured with and without the sample and improves upon existing techniques by accurately fitting the curves with Pearson type VII functions. The second employs an iterative approach using two simultaneously recorded images by exploiting the Laue crystal geometry. This technique provides a substantial reduction in X-ray dose and enables quantitative phase retrieval to be performed on images of moving objects.
Citation
Optics Express, 18(19), p. 19994-20012
ISSN
1094-4087
Link
Publisher
Optical Society of America
Title
X-ray phase, absorption and scatter retrieval using two or more phase contrast images
Type of document
Journal Article
Entity Type
Publication

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