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An Office of Science User Facility

X-ray Correlation Spectroscopy (XCS)

This site is OBSOLETE as of 30 Oct. 2017
Please go to the new XCS site


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.

For more information about the instrument see here:


XCS Location

The XCS instrument is located in Hutch 4 of the Far Experimental Hall of LCLS, about 420m away from the source.​

Far Experimental Hall (FEH), Hutch 4 » map
The XCS is located within the LCLS Far Hall, in Hutch 4. ​

XCS Contact Information
 Name: Matthieu Chollet
 Title: Scientist
 Phone: (650) 926-2458

 Name: Roberto Alonso-Mori
 Title: Scientist
 Phone: (650) 926-4179

 Name: Takahiro Sato
 Title: Scientist
 Phone: (650) 926-3749

 Name: Sanghoon Soog
 Title: Scientist
 Phone: (650) 926-2255

 Name: Diling Zhu
 Title: Scientist
 Phone: (650) 926-2913

 Name: Matt Hayes
 Title: XCS Area Manager
 Phone: (650)926-3060

 Name: Sebastien Boutet
 Title: Department Head
 Phone: (650)926-8676

XCS Control Room: (650) 926-1704
XCS Hutch: (650) 926-7980

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