The National Organization of Test, Research and Training Reactors

TRTR’s primary mission is education, fundamental and applied research application of technology in areas of national concern, and improving U.S. technological competitiveness around the world.

1: UMD
Maryland University Training Reactor

University of Maryland

Neutron Radiography Reactor

Idaho National Laboratory

3: MIT
Massachusetts Institute of Technology Reactor


High Flux Isotope Reactor

Oak Ridge National Laboratory

Annular Core Research Reactor

Sandia National Laboratory

6: Dow
Dow TRIGA Research Reactor
Kansas State University Research Reactor

Kansas State University

7: McClellan
McClellan Nuclear Research Center

University of California, Davis

Missouri University of Science and Technology Nuclear Reactor

Missouri S&T

Missouri University Research Reactor

University of Missouri

10: UT Austin
Nuclear Engineering Teaching Laboratory

University of Texas at Austin

US Geological Survey TRIGA Reactor
12: Oregon
Oregon State TRIGA Reactor

Oregon State University

13: Ohio
Ohio State University Research Reactor

Ohio State University

14: Breazeale
Penn State Breazeale Reactor

Penn State

15: NCSU

North Carolina State University

16: Purdue
Purdue University Research Reactor Number One

Purdue University

Rhode Island Nuclear Science Center

Rhode Island Atomic Energy Commission

18: Reed
Reed Research Reactor

Reed College

19: TAM
Nuclear Engineering & Science Center

Texas A&M University

20: UC Irvine
University of California, Irvine Nuclear Reactor Facility

University of California, Irvine

University of Massachusetts Lowell Research Reactor

University of Massachusetts Lowell

22: Utah
University of Utah Research Reactor

University of Utah

23: WSU
Washington State University Nuclear Science Center

Washington State University

24: Wisconsin
University of Wisconsin Nuclear Reactor

University of Wisconsin

25: WRCF
Walthousen Reactor Critical Facility

Rensselaer Polytechnic Institute

Armed Forces Radiobiology Research Institute TRIGA Reactor

Armed Forces Radiobiology Research Institute

27: NIST
NIST Center for Neutron Research

National Institute of Standards and Technology

28: UNM
University of New Mexico AGN-201

University of New Mexico

29: Florida
University of Florida Training Reactor

University of Florida

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2024 TRTR Annual Meeting

The 2024 TRTR Annual Meeting will be hosted by Sandia National Laboratory in Albuquerque, New Mexico from September 29 – October 3, 2024. Registration is now open!


Reactors around the country develop the next generation of nuclear engineers and scientists who will be leaders of the future.


We perform basic research to further our understanding of basic physics, improve the nuclear industry, and much more!


Member facilities perform community and global outreach to educate members of the public about the safe uses of nuclear energy.


Integral testing of nuclear components is a vital means of verifying performance. The TRTR community supports this work in scaled settings.

The National Organization of Test, Research and Training Reactors (TRTR) represents research reactor facilities across the nation from government, major universities, national laboratories, and industry. TRTR’s primary mission is education, fundamental and applied research, application of technology in areas of national concern, and improving U.S. technological competitiveness around the world. TRTR membership includes managers and directors of research reactors, educators, administrators, regulators, and research scientists and engineers.

Begun as a small technical group in the 1960s, TRTR quickly grew into a national organization and adopted its current name in 1976. The organization regularly holds an annual conference, hosted by a member institution, to discuss current technical and regulatory issues, advances in research and education, operating experience, and development of new applications in medicine, materials, health and safety, information technology, and environmental sciences, among others. TRTR provides expert technical assistance to member institutions and others through peer reviews, audits, and assessments. It also publishes a quarterly newsletter, which provides the latest information in all areas of interest to the membership. The newsletter is widely distributed within and outside TRTR, in the U.S. and abroad.