Skip to main content
SLAC National Accelerator Laboratory
LCLSLinac Coherent Light Source

User Portal Login   |  LCLS Internal Site

Main navigation

  • About
    • Organizational Chart
    • People & Committees
      • Leadership
      • Users' Executive Committee
      • Scientific Advisory Committee
      • LCLS Detector Advisory Committee
      • Proposal Review Panel
      • SLAC Photon Science Faculty
      • Users' Recognition Award
      • Young Investigator Award
    • Strategic Plan 2023-2028
    • Our Science
    • Internships
      • Intern Testimonials
      • Summer Student Poster Sessions
    • Jobs
    • Multimedia
      • Virtual Tours
      • Fact Sheets & Infographics
      • Image Gallery
      • Youtube Videos
    • Coming to SLAC
    • Contact Us
  • User Resources
    • User Research Administration (URA) Office
    • Schedules
    • Proposals
      • Proposal Preparation Guidelines
      • MeV-UED Proposals
      • Proposal Review Process
      • Run 25 Proposal Call
      • Universal Proposal System (UPS)
      • Submit Proposal
      • Archived Proposal Calls
    • User Agreements
    • Policies
    • Proprietary Research
    • Safety & Training
      • Work Planning & Control
      • LCLS Building Orientation
      • Hutch 6 Non-Permit Confined Space Training
      • Sample Delivery Training
      • Sample Prep Lab Training
    • SLAC User Access Requirements
      • Computer Accounts
      • Data Collection & Analysis (PCDS)
      • DAQ
      • Shipping Equipment & Materials
      • Financial Accounts
    • Links By Category
  • Publications
    • LCLS Publications
    • Search Publications
    • Submit New Publication
    • Archived Publications
  • Instruments
    • chemRIXS
      • Science Goals
      • Experimental Methods
      • Specifications
      • Standard Configurations
      • Publications
    • CXI
      • Experimental Methods
      • Specifications
      • Components
      • Standard Configurations
      • Publications
    • MEC
      • Science Goals
      • Experimental Methods
      • Specifications
      • Diagnostics & Components
      • Standard Configurations
      • Lasers & Beam Delivery
      • Publications
    • MFX
      • Science Goals
      • Experimental Methods
      • Specifications
      • Standard Configurations
      • Publications
    • qRIXS
      • Science Goals
      • Experimental Methods
      • Layout & Specifications
      • Capabilities
    • TMO
      • Science Goals
      • Layout & Specifications
      • Standard Configuration
      • Publications
    • TXI
      • Science Goals
      • Experimental Methods
      • Layout & Specifications
    • XCS
      • Experimental Methods
      • Specifications
      • Components
      • Standard Configurations
      • Operation Modes
      • Publications
    • XPP
      • Science Goals
      • Experimental Methods
      • Specifications
      • Components
      • Standard Configurations
      • Publications
    • MeV-UED
      • Specifications
      • Run 6 Scientific Capabilities
      • Schematics
      • Endstations
      • Proposals
      • Proposal Review Process
      • Schedule
      • Publications
    • LCLS-II-HE
    • DXS
      • Science Goals
      • Experimental Methods
      • Specifications
    • Instrument Maps
    • Standard Configurations
  • Machine
    • Machine Status
    • Machine FAQ (NC Linac)
    • Parameters
    • Schedules
  • Projects
    • LCLS-II
      • Science
      • Design & Performance
      • Commissioning
    • LCLS-II-HE
      • Science
      • Design & Performance
      • Meetings and Reports
      • Instruments
      • Internal Site
    • MEC-U
      • Science Mission
      • Design & Performance
      • Workshops & Meetings
      • Publications
      • News
      • Resources & Photos
      • Internal Site
  • Departments
    • SRD Leadership
    • Atomic, Molecular, & Optical Sciences
      • Research Interests
      • People
      • Research Highlights
      • Attosecond Science Campaign
    • Biological Sciences & Sample Preparations
      • Sample Environment & Delivery
      • Sample Preparation Laboratories
      • Biolabs at the Arrillaga Science Center (ASC)
      • Equipment Inventory
      • Chemical Inventory
    • Chemical Sciences
      • Research Interests
      • People
      • News & Highlights
      • Publications
    • Material Sciences
      • Research Interests
      • People
    • Matter in Extreme Conditions
      • Research Interests
      • People
      • Publications
    • Laser Sciences
      • Research Interests
      • Laser Capabilities​
      • People
      • User Resources
    • Detectors
      • Technologies
      • People
      • User Resources
    • Experiment Data Systems
      • Infrastructure
      • People
      • Projects
      • User Resources
    • Experiment Control Systems
      • Leadership
  • News
    • LCLS Science SLAC News Feed
    • Announcements & Updates
    • External News Features
      • Archive
  • Links

Breadcrumb

  1. Home
  2. Instruments
  3. XCS (X-ray Correlation Spectroscopy)
  4. …
Facebook Share X Post LinkedIn Share Email Send
  • chemRIXS
    • Science Goals
    • Experimental Methods
    • Specifications
    • Standard Configurations
    • Publications
  • CXI
    • Experimental Methods
    • Specifications
    • Components
    • Standard Configurations
    • Publications
  • MEC
    • Science Goals
    • Experimental Methods
    • Specifications
    • Diagnostics & Components
    • Standard Configurations
    • Lasers & Beam Delivery
    • Publications
  • MFX
    • Science Goals
    • Experimental Methods
    • Specifications
    • Standard Configurations
    • Publications
  • qRIXS
    • Science Goals
    • Experimental Methods
    • Layout & Specifications
    • Capabilities
  • TMO
    • Science Goals
    • Layout & Specifications
    • Standard Configuration
    • Publications
  • TXI
    • Science Goals
    • Experimental Methods
    • Layout & Specifications
  • XCS
    • Experimental Methods
    • Specifications
    • Components
    • Standard Configurations
    • Operation Modes
    • Publications
  • XPP
    • Science Goals
    • Experimental Methods
    • Specifications
    • Components
    • Standard Configurations
    • Publications
  • MeV-UED
    • Specifications
    • Run 6 Scientific Capabilities
    • Schematics
    • Endstations
    • Proposals
    • Proposal Review Process
    • Schedule
    • Publications
  • LCLS-II-HE
  • DXS
    • Science Goals
    • Experimental Methods
    • Specifications
  • Instrument Maps
  • Standard Configurations

XCS Specifications

XCS Schematic
XCS Schematic

Scientific Capabilities

Scientific Applications

X-ray Photon Correlation Spectroscopy (XPCS)

Coherent X-ray Scattering (CXS)

Time-resolved pump probe scattering, Absorption and emission spectroscopy in solution phases

Scattering Geometries

Small Angle X-ray Scattering (SAXS)

Grazing incidence Scattering (GI-SAXS,GID)

Wide Angle X-ray Scattering/Diffraction

Source Parameters

Photon Energy

4.7-25 keV, 1st harmonic

10-25 keV, 2nd and 3rd harmonic

Source Size (e-)

~ 60 x 60 µm2 (HxV) FWHM @ 8.3 keV

Source Divergence (e-)

~ 1.1 x 1.1 µrad2 (HxV) FWHM @ 8.3 keV

Repetition Rate

120, 60, 30, 10 Hz

Pulse Duration

70-300 fs (highcharge mode)

~ <10 fs (low charge mode)

Pulse Energy

~ 1-3 mJ (high charge mode)

~ 0.2 mJ (low charge mode)

Photons per Pulse

~1x 1012 (high charge mode @ 8.3 keV)

~1x 1011 (low charge mode @ 8.3 keV)

Photon Beam Properties

Focusing Capability

A selection (up to 10) of compound refractive lenses can be inserted in the beam to provide focusing at a given energy. By locating the sample at or out of focus, the beam size at the sample can be tuned from a couple of microns to several tens of microns.

Beam Size at Sample (8 keV)

Up to 750 x 750 µm2 FWHM @ 8.3 keV

Energy Range

4.7-25 keV (1st harmonic)

10-25 keV (2nd and 3rd harmonic)

Energy Resolution ΔE/E

Silicon (111) 1.4 x 10-4

Pink beam 2-3 x 10-3 

XCS CONTACTs

Matthieu Chollet

XCS Instrument Lead
(650) 926-2458 
[email protected]

Cynthia Melendrez

Area Manager 
(650) 926 2377 
[email protected]

Roberto Alonso-Mori

Lead Scientist 
(650) 926-4179 
[email protected]

Diling Zhu

Senior Scientist 
(650) 926-2913 
[email protected]

Tim van Driel

Staff Scientist 
(650) 926 3241 
[email protected]

Takahiro Sato

Staff Scientist 
(650) 926-3749 
[email protected]

Sanghoon Song

Staff Scientist 
(650) 926-2255 
[email protected]

Gourab Chatterjee

Laser Scientist 
(650) 926-5559 
[email protected]

Patrick Kramer

Laser Scientist 
(650) 926-5148 
[email protected]

-

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

XCS LOCATION

XCS location in Far Experimental Hall (FEH), Hutch 4
Far Experimental Hall (FEH), Hutch 4
Complete LCLS Instrument Map
Complete Instrument Map

Become A user

SVG

Review LCLS Schedules

Review Info on Proposals

Review LCLS Policies

Review Machine FAQ, Parameters, Status

Register as User and Submit Proposal

Subscribe to LCLSUO E-mail List

Confirm User Agreements

Industry - Research Partnerships

LCLS | Linac Coherent Light Source
2575 Sand Hill Road MS103
Menlo Park, CA 94025
  • Facebook
  • Twitter
  • Instagram
  • Flickr
  • Youtube
  • LinkedIn
  • Staff portal
  • Privacy policy
  • Accessibility
  • Vulnerability disclosure
SLAC
  • SLAC home
  • Maps & directions
  • Emergency info
  • Careers

© 2025 SLAC National Accelerator Laboratory is operated by Stanford University for the U.S. Department of Energy Office of Science.

Stanford University U.S. Department of Energy
Top Top
Back to top Back to top
OSZAR »