Improving the contrast resolution of DEI image using the resolution-tunable double-crystal analyzer

Gang Li; K. Hirano; Xiaoming Jiang; Zhihua Chen; Ziyu Wu; M. Ando; Lin Pan; Jintian Tang; Peiping Zhu; Ruola Ning

doi:10.1117/12.594867

20 April 2005 Improving the contrast resolution of DEI image using the resolution-tunable double-crystal analyzer

Gang Li, K. Hirano, Xiaoming Jiang, Zhihua Chen, Ziyu Wu, M. Ando, Lin Pan, Jintian Tang, Peiping Zhu, Ruola Ning

Proceedings Volume 5745, Medical Imaging 2005: Physics of Medical Imaging; (2005) https://doi.org/10.1117/12.594867
Event: Medical Imaging, 2005, San Diego, California, United States

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.

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Gang Li, K. Hirano, Xiaoming Jiang, Zhihua Chen, Ziyu Wu, M. Ando, Lin Pan, Jintian Tang, Peiping Zhu, and Ruola Ning "Improving the contrast resolution of DEI image using the resolution-tunable double-crystal analyzer", Proc. SPIE 5745, Medical Imaging 2005: Physics of Medical Imaging, (20 April 2005); https://doi.org/10.1117/12.594867

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