An X-ray Photon Correlation Experiment

• Published in: Langmuir Vol. 11; no. 5; pp. 1419 - 1421
• Main Authors: Chu, B, Ying, Q.-C, Yeh, F.-J, Patkowski, A, Steffen, W, Fischer, E. W
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 01-05-1995
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Other interactions of matter with particles and radiation; Physics; X-ray scattering; Particle suspension; Investigation method; Small angle X ray scattering; Experimental study; Colloid particle
• ISSN: 0743-7463; 1520-5827
• DOI: 10.1021/la00005a001

With synchrotron X-rays, a dynamic ultra-small-angle X-ray scattering experiment on a partially aggregated gold colloidal suspension was performed. The preliminary X-ray photon correlation data could be compared favorably with the intensity-intensity time correlation function measured by means of a near-IR diode laser ( lambda sub(0) identical with 790 nm) at equivalent scattering wave vectors. It should be recognized that the synchrotron X-ray source at NSLS was quite noisy. Nevertheless, the results demonstrate the feasibility of observing the motions of microstructures in polymer blends or colloidal systems by using the forthcoming third generation synchrotrons.