CONTIN XPCS: Program for Inverse Transform Analysis of X-Ray Photon Correlation Spectroscopy Dynamics

Published: January 31, 2018


Ross N. Andrews, Suresh Narayanan, Fan Zhang, Ivan Kuzmenko, Jan Ilavsky


X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) reveal dynamics by interference of coherent scattering, but X-rays permit interrogation of dynamics in a much more diverse array of materials. Heterogeneous dynamics occur in many such materials, and we showed how tools commonly employed in analysis of heterogeneous DLS dynamics extend to XPCS, revealing additional information that conventional Kohlrausch exponential fitting obscures. This work presents the software implementation of inverse transform analysis of XPCS data called CONTIN XPCS, an extension of traditional CONTIN, that accommodates dynamics encountered in equilibrium XPCS measurements.
Citation: Journal of Applied Crystallography
Volume: 51
Pub Type: Journals
Created January 31, 2018, Updated November 10, 2018