Abstract
When x-rays pass through an object, they are absorbed, refracted, and scattered. We have utilized only the contrast due to the difference of x-ray absorption in the clinical field. In the meantime, various techniques have been developed to extract an object's x-ray absorption, refraction (phase shift), and scatter, either separately or in some combination thereof during the past 20 years. Refraction-contrast, which is based on the difference in x-ray refraction, has been proved to be good at depicting soft tissues by many researchers. Besides, some researchers have reported the studies on the image contrast due to ultra-small-angle X-ray scattering (USAXS) using Bragg case analyzer (reflection type).
We tried USAXS imaging utilizing Laue case analyzer (transmission type). The experiment was performed at Beamline BL14B using synchrotron x-ray from the vertical wiggler of the Photon Factory in Tsukuba, Japan. The diffracted x-ray beams were acquired as images. The degree of USAXS was estimated from the expanse of the intensity curve of the each local pixel during Laue case analyzer rotated within the range of diffraction. We will report the preliminary results at this session.
