Open AccessDiffraction enhanced x-ray imaging
Author(s) -
W. Thomlinson,
Z. Zhong,
D. Chapman,
R.E. Johnston,
D. Sayers
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/548746
Subject(s) - diffraction , optics , materials science , contrast (vision) , absorption (acoustics) , attenuation , refraction , extinction (optical mineralogy) , synchrotron , radiography , mammography , x ray , physics , medicine , cancer , breast cancer , nuclear physics
Diffraction enhanced imaging (DEI) is a new x-ray radiographic imaging modality using synchrotron x-rays which produces images of thick absorbing objects that are almost completely free of scatter. They show dramatically improved contrast over standard imaging applied to the same phantoms. The contrast is based not only on attenuation but also the refraction and diffraction properties of the sample. The diffraction component and the apparent absorption component (absorption plus extinction contrast) can each be determined independently. This imaging method may improve the image quality for medical applications such as mammography