FRIB issues second call for proposals for FRIB beam time

28 October 2022

FRIB issued its second call for proposals today. The FRIB science program commenced in May 2022, delivering successful experiments approved in the first call for proposals. The second call invites scientific users the world over to submit proposals for additional research and new ideas using FRIB capabilities.

With this call, FRIB invites proposals for beam time to be considered at the second FRIB Program Advisory Committee’s (PAC2) meeting scheduled for 1-3 March 2023. The PAC is a group of international experts who review proposals for non-proprietary beam time requests submitted to FRIB. The PAC makes recommendations to the FRIB Laboratory Director about beam-time allocation.

FRIB is a U.S. Department of Energy Office of Science (DOE-SC) user facility, supporting the mission of the DOE-SC Office of Nuclear Physics. FRIB open to all interested researchers, and beam time is granted based on a merit review of proposals. There is no charge for users who are doing non-proprietary work, with the understanding that they are expected to publish their results. Full cost recovery is required for proprietary work.

FRIB PAC2 will consider proposals for experiments using fast, stopped and reaccelerated rare-isotope beams from the FRIB linear accelerator (linac). Newly offered for PAC2:

  • Consideration of proposals for experiments that can be run stand-alone in the reaccelerated beam and stopped beam areas where FRIB has a unique capability;
  • Additional primary beams from the FRIB linac;
  • An additional experimental area, the S1 vault, which is the new, permanent location of the FRIB Decay Station Initiator (FDSi)

Detailed information regarding proposal preparation can be found in the Call for Proposals.

FRIB supports a community of 1,600 scientists from around the world, enabling them to make discoveries about how the universe formed, while advancing innovation in medicine, nuclear security, environmental science, and more. They are organized in an independent FRIB Users Organization, and include scientists, postdoctoral research associates, and graduate students from universities, national laboratories, and industry. It is anticipated that up to 1,000 users will visit FRIB each year.


  • 28 October 2022: Call for Proposals for FRIB PAC2 meeting
  • 23 January 2023 (11 p.m. EST): Proposal submission deadline
  • 1-3 March 2023: FRIB PAC2 Meeting
  • 10 March 2023: List of PAC-recommended experiments posted to the FRIB website and spokespersons notified
  • August 2023 - August 2025: Period for PAC2 experiments

UPDATE (11/14/22): An FRIB PAC2 Call for Proposals Webinar is scheduled for 5 December. Visit the webinar page for more information.

Michigan State University operates the Facility for Rare Isotope Beams (FRIB) as a user facility for the U.S. Department of Energy Office of Science (DOE-SC), supporting the mission of the DOE-SC Office of Nuclear Physics. Hosting what is designed to be the most powerful heavy-ion accelerator, FRIB enables scientists to make discoveries about the properties of rare isotopes in order to better understand the physics of nuclei, nuclear astrophysics, fundamental interactions, and applications for society, including in medicine, homeland security, and industry.

The U.S. Department of Energy Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of today’s most pressing challenges. For more information, visit