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An Office of Science User Facility

X-ray Correlation Spectroscopy (XCS)

XCS Home


The XCS instrument 


*The split and delay capability is still under commissioning for the XCS instrument.

The unprecedented brilliance and narrow pulse duration of the Linac Coherence Light Source provides a unique opportunity to observe dynamical changes of large groups of atoms in condensed matter systems over a wide range of time scales using Coherent X-ray Scattering (CXS) in general and X-ray Photon Correlation Spectroscopy (XPCS) in particular. The X-ray Correlation Spectroscopy (XCS) instrument at the LCLS allows the study of equilibrium- and non-equilibrium dynamics in disordered or modulated materials.

The XCS instrument is located in Hutch 4 of the Far Experimental Hall of LCLS. The XCS instrument is located about 420m away from the source. Characteristic timescales ranging from 10 milliseconds to thousands of seconds can be explored using a sequential mode of operation. Ultrafast timescales ranging from 100 femtosecond to several nanoseconds can be probed using a novel “Split and Delay” mode of operation.

XCS Location

Far Experimental Hall (FEH), Hutch 4 » map
The XCS is located within the LCLS Far Hall, in Hutch 4. ​
XCS Contact Information
 Name: Aymeric Robert
 Title: XCS Instrument Scientist
 Phone: work(650) 926-2747

 Name: Marcin Sikorski
 Title: XCS Instrument Scientist
 Phone: (650) 926-4957

 Name: Daniel Stefanescu
 Title: XCS Area Manager
 Phone: (650) 926-3662

XCS Hutch: Phone 7980

XCS Installation Time Lapse Video (More videos)

XCS Animation (More videos)

XCS Image Gallery (More images)

XCS Instrument Image

SLAC SLAC National Accelerator Laboratory, Menlo Park, CA
Operated by Stanford University for the U.S. Dept. of Energy