March 20, 2024

LCLS MeV-UED Run 5 Call for Proposals

MeV-UED Call for Proposals for period: October 2024 – May 2025 (Run 5)
Submission Deadline Extended: 10 May 2024 (4:00 PM Pacific Time)

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 experimental requirements including single-shot experiments, high-temperature experiments, and experiments involving electrical excitation or biasing. Both chambers offer a broad range of optical pumps at their interaction points.

Since 2014, the SLAC UED instrument has been developing robust methods in the pursuit of time-resolved measurements to control and understand structural dynamics and chemical dynamics in a variety of material and chemical systems.  Run 5 will leverage these successes and continue system-level improvements in machine reliability.

Information about developing and submitting MeV-UED Proposals

Virtual Town Hall: April 2, 2024 at 8:30am Pacific Daylight Time

A webcast meeting was held at 8:30 am Pacific Daylight Time on April 2, 2024 to inform users about the developments at MeV-UED before the proposal deadline on May 7th 2024. MeV-UED staff informed the community about the latest capabilities and answered Q&A. A recording of the meeting and presentations is available below:

Watch the recording


Time (US Pacific - PDT)DurationTopic (Click to access slides)Presenter
8:30:00 AM8:45:00 AM0:15:00Introduction and Scope of CallAlex Reid
8:45:00 AM9:05:00 AM0:20:00MeV-UED Instrument Updates and  
Overview of Electron Beam Capabilities
Joel England
9:05:00 AM9:25:00 AM0:20:00Low temperature and quantum materials  
Sharon Philip and  
Ming-Fu Lin
9:25:00 AM9:40:00 AM0:15:00Stochastic Dynamics chamberMianzhen Mo
9:40:00 AM9:55:00 AM0:15:00Laser parameters for MeV-UEDPatrick Kramer
9:55:00 AM10:15:00 AM0:20:00Submission Portal UpdatesPaul Jones
10:15:00 AM10:30:00 AM0:15:00Q&A SessionAll staff

Experimental stations available to users in Run 5:

  • Cryo and Quantum Materials Chamber  - See Endstations for details
  • Single Shot and High Temperature Chamber - Three operational modes offered.

Detailed information about the experimental capabilities on offer for run 5 are included in MeV-UED Run 5 Scientific Capabilities. For further information on MeV-UED’s performance, please contact the instrument experimental points of contact listed below and see our instrument specifications, and experimental layout. Refer here for more general information about MeV-UED.

Proposal Submission

Access to the LCLS MeV-UED instrument is open to the international community. LCLS encourages scientists from diverse fields and backgrounds to propose experiments utilizing the facility’s capabilities. New users are particularly welcome: the staff listed above will provide advice on how to translate your scientific ideas into an MeV-UED experiment, and can help introduce new users to potential partner user groups if desired. For all users, communication with the instrument team is strongly encouraged to help maximize your chances of success. General guidance on proposal preparation, and a proposal template are also available.

Access to LCLS is open to the international community, with selection based on scientific merit (More details about the MeV-UED Proposal Review Process). There is no charge to conduct experiments at LCLS, and the facility is able to help with the costs of performing experiments (e.g. consumables). However, users are responsible for their own travel expenses. Consider applying for Proprietary Research time if you do not plan to publish.

Register and submit proposals through the new Universal Proposal System

Register as a user and submit MeV-UED proposals through the Universal Proposal System

The Universal Proposal System (UPS) is a collaboration between the Advanced Photon Source (APS) at Argonne National Laboratory, the National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory, and the Linac Coherent Light Source (LCLS / MeV-UED) at SLAC National Accelerator Laboratory. Registration in UPS is required for all members of the proposal team (Principal Investigator(s) and Co-Proposers).

Find out more about the Universal Proposal System

For information about this new system and explain the features and functionality of this new tool please visit the link below:

Universal Proposal System Information