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  • User Research Administration (URA) Office
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User Guide and Resources

Quick Start Guide for New LCLS Users

The LCLS encourages scientists from diverse fields to submit proposals for experiments that utilize the LCLS's unique capabilities. Interested scientists are encouraged to learn more about the latest developments by reviewing the instrument descriptions. Contact LCLS instrument scientists to discuss your proposed experiments and for updated performance parameters.  

  • Review LCLS Schedules    
  • Read Proposal Overview    
  • Review Instruments, Policies, Machine FAQ, Parameters, Status    
  • Register as User and Submit Proposal    
    • Foreign Nationals: Before registering, read all Entry Requirements.
  • Confirm User Agreements
  • Subscribe to lclsuo e-mail list
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Requirements for access to SLAC

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Please review the information linked below for details of the necessary action required for all Users coming to SLAC onsite or accessing SLAC resources remotely.

Requirements for Onsite Access and Remote Access

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SLAC National Accelerator Laboratory

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Linac Coherent Light Source

  • LCLS Users’ Organization Charter and By-Laws

Only for Users Approved for SLAC Onsite Access: Proceed to the VUE Center (1st floor Science and User Support Building 053) to check in, get badged, and update your proximity access. Check-in is from 7:00 a.m. to 5:00 p.m., Monday - Friday.  See below links for help with settling in the area and getting started with your experiment at LCLS.

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Remote Participation

  • Tools for Remote Participation in Experiments
  • Data Collection & Analysis
  • PCDS Users

Other Tools and Information

  • Experiment Portal / eLog
  • MCC eLog (accessible from SLAC domain only)
  • LCLS Schedules
  • Machine Status

 

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Please clean up your work area before you leave. Log in to the User Portal to complete an end of run survey after each scheduled experiment. Your feedback will be used to address issues and continually improve user resources and support. LCLS also needs your help to compile metrics that demonstrate scientific accomplishments and productivity. Please submit LCLS related publications and inform us of awards, patents, etc.

  • Submit End of Run Survey    
  • Submit New Publication    
  • Inform us of Awards, Patents etc.    
  • Participate in the LCLS Users' Organization    
  • Attend LCLS Events
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Latest Proposal Schedule

A call for proposals is generally made twice per year, approximately eight months before the run is scheduled to begin.

Mode of AccessRun CycleProposal Call StatusDeadlineCycle BeginsCycle Ends
Regular User ProposalsLCLS 25Proposals under review Sep 2025Feb 2026
Data Collection & Screening (DC&S)LCLS 25Proposals under review Sep 2025Feb 2026
MeV-UED Regular User ProposalUED 6Accepting Proposal Submissions16 May 2025Oct 2025Aug 2026
Rapid AccessLCLS 24Accepting Proposal Submissionsn/aMar 2025Jul 2025

Calls For Proposals are posted on the LCLS Announcements, and e-mailed to the LCLS User Organization e-mail list (subscribe to lclsuo).

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