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Proceedings Paper

Improving the contrast resolution of DEI image using the resolution-tunable double-crystal analyzer
Author(s): Gang Li; K. Hirano; Xiaoming Jiang; Zhihua Chen; Ziyu Wu; M. Ando; Lin Pan; Jintian Tang; Peiping Zhu; Ruola Ning
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Paper Abstract

The excised rat kidney slices were investigated using the diffraction enhanced imaging (DEI) method under the different FWHM of the rocking curve with 33.7keV x-ray, for the first time. The narrower FWHM of the rocking curve is used in the DEI imaging, the finer structure of the sample can be clearly distinguished and more details can be seen in the DEI image. Tuning the rocking curve width between 1.7μrad and 0.31μrad was done with small loss of peak intensity using a Si (220) double-crystal analyzer. The reason related with the influence of the FWHM of the rocking curve to the contrast resolution of DEI method is discussed. For the thin sample, how small deflected angle can be distinguished determines how small difference of density can be distinguished in the DEI imaging.

Paper Details

Date Published: 20 April 2005
PDF: 9 pages
Proc. SPIE 5745, Medical Imaging 2005: Physics of Medical Imaging, (20 April 2005); doi: 10.1117/12.594867
Show Author Affiliations
Gang Li, Institute of High Energy Physics, CAS (China)
K. Hirano, Photon Factory, KEK (Japan)
Xiaoming Jiang, Institute of High Energy Physics, CAS (China)
Zhihua Chen, China-Japan Friendship Institute of Clinical Medical Sciences (China)
Ziyu Wu, Institute of High Energy Physics, CAS (China)
M. Ando, Photon Factory, KEK (Japan)
Lin Pan, China-Japan Friendship Institute of Clinical Medical Sciences (China)
Jintian Tang, China-Japan Friendship Institute of Clinical Medical Sciences (China)
Peiping Zhu, China-Japan Friendship Institute of Clinical Medical Sciences (China)
Ruola Ning, Univ. of Rochester Medical Ctr. (United States)


Published in SPIE Proceedings Vol. 5745:
Medical Imaging 2005: Physics of Medical Imaging
Michael J. Flynn, Editor(s)

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