| Literature DB >> 18843383 |
Martin D de Jonge1, Stefan Vogt, Daniel Legnini, Ian McNulty, Christoph Rau, David Paterson, Benjamin Hornberger, Christian Holzner, Chris Jacobsen.
Abstract
We developed a technique for performing quantitative phase reconstructions from differential phase contrast images obtained using a configured detector in a scanning transmission X-ray microscope geometry. The technique uses geometric optics to describe the interaction of the X-ray beam with the specimen, which allows interpretation of the measured intensities in terms of the derivative of the phase thickness. Integration of the resulting directional derivatives is performed using a Fourier integration technique. We demonstrate the approach by reconstructing simulated measurements of a 0.5-µm-diameter gold sphere at 7-keV photon energy.Year: 2007 PMID: 18843383 PMCID: PMC2562734 DOI: 10.1016/j.nima.2007.08.111
Source DB: PubMed Journal: Nucl Instrum Methods Phys Res A ISSN: 0168-9002 Impact factor: 1.455