Open AccessHARD X-RAY PHASE-CONTRAST IMAGING
Author(s) -
Dachao Gao,
A. Pogany,
Andrew Stevenson,
Timur E. Gureyev,
S. W. Wilkins,
Mai Zhang
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.2357
Subject(s) - x ray phase contrast imaging , contrast (vision) , phase contrast microscopy , phase contrast imaging , phase (matter) , x ray , optics , materials science , computer science , physics , quantum mechanics
Conventional X-ray radiography is based on absorption contrast and assumes geome trical optics. An “in-line” method and theory of hard X-ray phase-contrast ima ging were introduced. The differences between the conventional X-ray absorption contrast image and the phase contrast image were distinguished by using radiogra phs of biological samples. The effect of X-ray source size on the image contrast was investigated. Moreover, the key parameters of absorption contrast image and phase contrast image were simulated theoretically and discussed.