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World's First Hard X-ray Free-electron Laser

The Linac Coherent Light Source at SLAC takes X-ray snapshots of atoms and molecules at work, revealing fundamental processes in materials, technology and living things. LCLS is an Office of Science User Facility operated for the U.S. Department of Energy by Stanford University.

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LCLS Announcements & Updates
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Latest Proposal Schedule

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

Mode of AccessRun CycleProposal Call StatusDeadlineCycle BeginsCycle Ends
Regular User ProposalLCLS 23Proposals under review21 Feb 2024Aug 2024Feb 2025
Data Set Collection (DSC)LCLS 23Proposals under review21 Feb 2024Aug 2024Feb 2025
Protein Crystal Screening (PCS)LCLS 23Accepting proposals via User Portal28 Mar 2024Aug 2024Feb 2025
MeV-UED Regular User ProposalUED 5Proposal call coming soon07 May 2024Oct 2024May 2025
Scientific CampaignOngoingExperiments scheduled   
Rapid AccessLCLS 22Accepting proposals via User Portal Jan 2024Jul 2024

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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