Dedicated to static and dynamic condensed matter chemistry and materials science. Learn More About ChemMatCARS


Used to investigate dynamical and structural properties of surfaces and interfaces in a variety of liquid and solid systems. Learn More About Liquid Surface At ChemMatCARS

Liquid Surface/Interface X-ray Scattering

Uses a "rapid setup" crystallography facility that allows us to rapidly switch operation to the single-crystal instrument. Learn More About Crystallography At ChemMatCARS

Advanced Crystallography


ChemMatCARS operates three experimental stations in the areas of advanced small-molecule crystallography, liquid surface and interface scattering, and ultra-small to wide-angle scattering at the Advanced Photon Source (APS), the premier undulator-based synchrotron source of high-brilliance high-energy x-rays in the U.S.A. The instrumentation at ChemMatCARS provides information that addresses a broad range of issues in chemistry and materials research.

ChemMatCARS International Student Visitor, Mr. Nikolaj Roth

Nikolaj Roth is a graduate student at Aarhus University located in Aarhus, Denmark.  Nikolaj arrived at Argonne on Sunday, January 31, 2016 and will be conducting crystallography research with Yu-Sheng Chen at ChemMatCARS, sector 15 until the beginning of April.  He is joining ChemMatCARS as a part of an active partnership with the International Centre for Materials Crystallography (CMS) at Aarhus University.   Please join us in welcoming Nikolaj and make his experience here at Argonne unforgettable!

Nikolaj Roth_0.png

ChemMatCARS New Sector User Coordinator, Ms. Kimberly Simms

On January 19, 2016, ChemMatCARS added a new team member, Ms. Kimberly Simms, to be the Sector User Coordinator for ChemMatCARS, Sector 15.  Kimberly is a recent graduate from University of Illinois at Urbana-Champaign (UIUC).  She will play a critical role in coordinating ChemMatCARS user operations and providing ChemMatCARS scientific staff with administrative support, and her contact information can be found here.  Please join us to warmly welcome Kimberly on board and wish her the very best in her new adventure at ChemMatCARS. Kimberly Simms_0.jpg

Scientific Focus

The scientific focus of user activities at ChemMatCARS is the study of structure and dynamics over the range of length scales from atomic and molecular to mesoscopic. The experimental techniques available to the scientific community span a spatial resolution of sub-angstrom to micrometer and a time resolution from 50 ns to minutes. These include:

High Precision Crystallography to study charge (i.e., electron) densities, bonding, microcrystals, resonant diffraction, high-pressure (up to 10 GPa) single crystal diffraction, and transient state/photo-crystallography.

Scattering From Liquid Surfaces and Liquid-Liquid Interfaces to measure atomic, molecular, and mesoscopic ordering at interfaces using resonant and non-resonant reflectivity, grazing-incidence diffraction and small angle scattering, surface fluorescence, surface diffuse scattering, and fast techniques, such as grazing incidence diffraction in the 1D pinhole geometry.

Small and wide-angle x-ray scattering (SAXS/WAXS) to probe ordering in bulk materials on angstrom to micrometer length scales.