Graduate student working at FRIB. Find out more

Welcome to FRIB

The Facility for Rare Isotope Beams (FRIB) at Michigan State University (MSU) is a world-unique research laboratory, hosting the most powerful rare-isotope accelerator. MSU operates FRIB as a user facility for the U.S. Department of Energy Office of Science (DOE-SC), with financial support from and furthering the mission of the DOE-SC Office of Nuclear Physics. FRIB is where researchers come together to make discoveries that change the world. They study the properties and fundamental interactions of rare isotopes and nuclear astrophysics and their impact on medicine, homeland security, and industry.

Research areas

FRIB advances nuclear science by improving our understanding of nuclei and their role in the universe, while also advancing accelerator systems.

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Capabilities

In establishing and operating FRIB, capabilities were developed that transfer to other industries and applications.

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GRETA
David Neto A graphic with the U.S. Genesis Mission logo

User facilities

FRIB hosts the most powerful heavy-ion accelerator and enables discoveries in rare isotopes, nuclear astrophysics, fundamental interactions, and societal applications like medicine, security, and industry.

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Learn more about upcoming events taking place at FRIB. 

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  • 20 October 2026
  • 11:00 EDT
A Microscopic Description of Intermediate-Energy Nuclear Reactions within Glauber Theory Using Realistic Many-Nucleon Wave Functions Scattering experiments at intermediate energies provide a powerful way to probe the size and internal structure of atomic nuclei. To extract such information from measured cross sections, however, we need a reliable reaction theory that connects the experimental observables to the underlying nuclear structure. The Glauber theory provides a widely used framework for this purpose, but its full calculation is computationally demanding because the scattering process depends simultaneously on the coordinates of all nucleons in the colliding nuclei. In practice, various approximations are therefore commonly introduced, and it is important to understand how accurately they describe the full many-body problem. In this talk, I will present a direct microscopic calculation of nucleus-nucleus scattering within the full Glauber theory using realistic many-nucleon wave functions obtained with the variational Monte Carlo method. By combining these wave functions with Monte Carlo integration, we can directly evaluate the many-body scattering amplitude while retaining nucleon-nucleon correlations that are often simplified or neglected in conventional calculations. I will first introduce the basic physical picture of high-energy nuclear scattering and explain why the Glauber approach is useful for connecting reaction cross sections with nuclear structure. I will then show results of our full many-body calculations and compare them with experimental data. Finally, by comparing the full calculations with commonly used approximations, I will discuss when these simpler approaches work and where they begin to break down. The main message is that modern many-body wave functions make it possible to test the Glauber reaction framework at a fully microscopic level. Such calculations provide a useful benchmark for assessing widely used approximations and help clarify how nuclear sizes, density distributions, and many-nucleon correlations are reflected in intermediate- and high-energy scattering observables.
  • 23 October 2026
  • 2:00 EDT
Weak Interactions and Transport in Neutron Star Mergers Neutron star mergers are among the most extreme events in the Universe, providing a unique laboratory to study matter at densities and temperatures inaccessible on earth. While much of our understanding of these events relies on the properties of matter in equilibrium, the rapid dynamics of a merger can drive matter far from equilibrium. In this talk, I will discuss how weak interactions govern the restoration of chemical equilibrium and how transport processes influence the evolution of neutron star mergers and their observable signals. I will also introduce the nucleon width approximation (NWA), a new approach to calculating weak interaction rates in dense nuclear matter, and its advantages compared to old methods.
  • 23 October 2026
  • 3:00 EDT
Accelerator Physics Seminar TBD
Training the next generation

Education & training

FRIB at MSU is a world-unique research laboratory where students and researchers from all career stages and backgrounds come together to make discoveries that change the world.

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External news and journal publications discussing FRIB.

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  • 17 September 2026
  • Phys.org

A research team has reported the first experimental investigation of a nuclear physics reaction essential for understanding how the element strontium is produced in stars—specifically in stellar environments where traditional explanations for its formation fall short. The project was led by Caley Harris, a former graduate student at FRIB. 

https://phys.org/news/2026-09-krypton-narrow-key-gap-stellar.html
  • 1 August 2026
  • Interesting Engineering

A next-generation nuclear detection system that could aid US national security efforts has logged its first operational measurements in Michigan. The Gamma-Ray Energy Tracking Array, known as GRETA, recently completed its initial characterization run at Michigan State University. Located at FRIB, the instrument met all primary performance targets during early beam testing.

https://interestingengineering.com/science/powerful-us-nuclear-detector-takes-f…
  • 26 July 2026
  • SciTechDaily

For decades, some atomic nuclei have emitted more low-energy gamma rays than theory could explain. A collaboration led by researchers at FRIB has now traced this mysterious excess in zinc-70 to magnetic transitions occurring inside the nucleus. The findings are reported in a study recently published in Nature. 

 


 

https://scitechdaily.com/scientists-solve-a-decades-old-mystery-inside-atomic-n…
  • 4 March 2026
  • Lansing State Journal

Michigan State University's K500 Chip Testing Facility, inaugurated in February at FRIB, cost approximately $14 million to establish, with funding provided by the U.S. Department of Defense. The project repurposed the campus' K500 superconducting cyclotron, completed in 1982 for high-energy, heavy-ion research, including producing and accelerating ion beams to study nuclear structure, to now allow the facility to test semiconductors for space, defense and on-Earth applications.

https://www.lansingstatejournal.com/story/news/local/campus/2026/03/04/msu-micr…