Anomalous small-angle X-ray scattering: analyzing correlations and fluctuations in polyelectrolytes

Anomalous small-angle X-ray scattering: analyzing correlations and fluctuations in polyelectrolytes

We review recent structural investigations done by anomalous small-angle X-ray scattering (ASAXS). ASAXS uses the dependence of the scattering length of a given element if the energy of the incident X-ray beam is near the absorption edge of this element. The analysis of the ASAXS data leads to three partial intensities. We show that the comparison of these three partial intensities leads to val...

Application of small angle X-ray scattering (SAXS) for differentiation between normal and cancerous breast tissues

ABSTRACT Background: Coherent scattering leads to diffraction effects and especially constructive interferences. Theseinterferences carry some information about the molecular structure of the tissue. As breast cancer isthe most widespread cancer in women, this project evaluated the application of small angleX-ray scattering (SAXS) for differentiation between normal and cancerous breast tissues....

Beyond small-angle x-ray scattering: Exploiting angular correlations

D. K. Saldin,1 H. C. Poon,1 V. L. Shneerson,1,* M. Howells,2 H. N. Chapman,3 R. A. Kirian,4 K. E. Schmidt,4 and J. C. H. Spence4 1Department of Physics, University of Wisconsin–Milwaukee, Milwaukee, Wisconsin 53211, USA 2Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Center for Free Electron Laser Science, DESY, Universität Hamburg, 22607 Hamburg, Germany 4Department of...

Ultra-small-angle X-ray Scattering

Magnetic Small Angle X-Ray Scattering

We present first experimental results of the extension of X-ray Magnetic Circular Dichroism (X-MCD) to Small Angle X-ray Scattering (SAXS). The purpose of this study is to determine size distributions and correlations lengths in the nanometer range of magnetic precipitates in granular systems. Magnetic scattering curves obtained with a GdFe system at the Gd La edge are compared with reference m...