Date of Award
1-1-2015
Language
English
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
College/School/Department
Department of Physics
Content Description
1 online resource (x, 49 pages) : color illustrations.
Dissertation/Thesis Chair
Carolyn MacDonald
Committee Members
Sajjad Alam, Ariel Caticha, Hassan Abbas
Keywords
Edge enhancement, Phase Imaging, Phase Retrieval, Polycapillary Optics, Propagation-based, Radiography, X-ray optics, X-ray spectroscopy, Phase-contrast microscopy, Diagnostic imaging
Subject Categories
Physics | Radiology
Abstract
The interaction of X rays in diagnostic energy range with soft tissues can be described by Compton scattering and by the complex refractive index, which together characterize the attenuation properties of the tissue and the phase imparted to X rays passing through it. Many soft tissues exhibit extremely similar attenuation, so that their discrimination using conventional radiography, which generates contrast in an image through differential attenuation, is challenging. However, these tissues will impart phase differences significantly greater than attenuation differences to the X rays passing through them, so that phase-contrast imaging techniques can enable their discrimination.
Recommended Citation
Bashir, Sajid, "Phase imaging using focusing polycapillary optics" (2015). Legacy Theses & Dissertations (2009 - 2024). 1334.
https://scholarsarchive.library.albany.edu/legacy-etd/1334