Proposal Calls

Run CycleProposal DeadlineCycle StartsCycle EndsRun 27February 26, 2026 (4 pm Pacific)September 2026March 2027

A Virtual LCLS “Town Hall” User Meeting to discuss Run 26 will be held at 9:00 am Pacific Daylight Time on July 16, 2025. TopicPresenterRecording / SlidesPlenary Session    Current LCLS Status & PlansSebastien BoutetRecording & SlidesUniversal Proposal SystemPaul JonesUser Executive Committee UpdateSilvia PandolfiShort Proposal Program UpdateSandra MousAccelerator Plans for Run 25Tim Maxwell / Axel BrachmannSoft X-ray   Instrument Capabilities  Hard X-ray Instrument...

LCLS is pleased to announce the proposal call for MeV-UED’s sixth external user experimental run, scheduled to begin in October 2025. In “Run 6”, LCLS MeV-UED will offer two specialized chambers for chemical science experiments. The first chamber is designed for gas-phase experiments, while the second chamber allows experiments using liquid-sheet jets. Both chambers offer a broad range of optical pumps at their interaction points. Since 2014, the SLAC UED instrument has been...

To help users with the transition to the new proposal submission tool, we have scheduled open "Office Hours" to provide technical support and assistance for any users learning how to use UPS. DateTimeZoom detailsFebruary 12, 20259:30 am PSTZoom LinkFebruary 19, 20259:30 am PSTZoom LinkFebruary 26, 20259:30 am PSTZoom LinkMarch 3, 20259:00 am PSTZoom LinkMarch 3, 202512:00 pm PSTZoom Link

To help users with the transition to the new proposal submission tool, we have scheduled open "Office Hours" to assist users   learning how to use UPS for the first time. DateTimeZoom detailsAugust 26, 202410:00 Pacific TimeRegistration closedAugust 29, 2024  10:00 Pacific TimeRegistration closedSeptember 5, 202410:00 Pacific TimeRegistration closedSeptember 9, 202410:00 Pacific TimeClick here to register and add to your calendar

LCLS is pleased to announce MeV-UED’s fifth external user experimental run scheduled to begin in October of 2024. In “Run 5”, LCLS MeV-UED will offer two specialized chambers dedicated to solid-state experiments. The first chamber, the Cryo and Quantum Materials Chamber, is optimized to facilitate experiments conducted at or below room temperature. The second chamber, the Single-Shot and High Temperature Chamber, offers a range of configurations to accommodate versatile...

InstrumentPresenterPresentationsTMOJames CryanVideo & SlidesMECEric GaltierVideo & SlidesMFXLeland GeeVideo & SlidesqRIXSGeorgi DakovskiVideo & SlidesXCSMatthieu CholletVideo & SlideschemRIXSKristjan KunnusVideo & SlidesCXIMeng LiangVideo & SlidesXPPTakahiro SatoVideo & SlidesTXIAndy AquilaVideo & Slides