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Glenn T. Seaborg Institute

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1000 x 375Pushing the boundaries of actinide science

Pushing the boundaries of actinide science​

1000 x 375Fundamental Actinide Research

Fundamental Actinide Research​

1000 x 375Collaboration With Renowned Experts

Collaboration With Renowned Experts​

1000 x 375Fundamental Actinide Research

Fundamental Actinide Research​

1000 x 375Innovative actinide research

Innovative actinide research

1000 x 375Development of talented researchers

Development of talented researchers​

1080 x 404Advanced Instrumentation

Advanced Instrumentation​

1002 x 375Developing the Next Generation of Actinide Scientists

Developing the Next Generation of Actinide Scientists​

1000 x 375Rich Collaborative Environment

​​​Rich Collaborative Environment​

1000 x 375World Class Hot Laboratories

World Class Hot Laboratories​

1000 x 375GTSI-INL


The Glenn T. Seaborg Institute (GTSI) at Idaho National Laboratory (INL) is committed to the development of talented researchers who pursue the chemistry and behavior of the actinide elements. GTSI-INL seeks to push the boundaries of understanding of the actinide elements through innovative and quality research. It joins a consortium of other institutes around the United States and exists as a tribute to Dr. Glenn T. Seaborg, who co-discovered multiple elements, including plutonium, and committed his life’s work to the advancement of actinide chemistry. 

GTSI History


Glenn T. Seaborg was the only living person to have a chemical element, seaborgium, named after him.


The mission of GTSI-INL, launched in 2018, is to nurture researchers and emphasize actinide work. The institute features a postdoctoral research program, a Distinguished Speaker Series, and community educational outreach for the purpose of developing the next generation of actinide scientists. GTSI-INL was inspired by the three other Glenn T. Seaborg institutions within the DOE complex for the express purpose of encouraging basic actinide research to help the U.S. maintain a dominant position in the area of advanced actinide science.

The Glenn Seaborg organizations at Los Alamos National Laboratory (LANL), Lawrence Livermore National Laboratory (LLNL), and the GTS Center at Lawrence Berkeley National Laboratory (LBL) have been very supportive of this effort at INL. We are deeply grateful to Franz Freibert and David L. Clark of LANL, Mavrik Zavarin of LLNL, and Rebecca Abergel and Darleane Hoffman of LBL for their investment of time and advice in this endeavor. We would also like to thank Kelly Beierschmitt, Krzysztof Gofryk, Peter Zalupski, Kevin Carney, Rekha Pillai, Michelle Bingham, Terry Todd, and John Wagner of INL for their vision and support.

About Glenn T. Seaborg

​Dr. Seaborg (1912-1999) is widely recognized as the father of the modernized Periodic Table of Elements after he suggested that the elements 89 to 103 be placed in a series below the lanthanide elements. This breakthrough allowed him to predict the properties of new elements and led to his discovery of multiple new elements including plutonium, americium, and the element that bears his name, seaborgium. It cannot be overstated how much he impacted modern society. His discoveries, along with those of many other important researchers, ushered in the modern nuclear age and led to the widespread use of nuclear energy and countless radiological advancements in medical, household, and military applications. He served as an adviser to multiple U.S. presidents and organizations that shaped nuclear policy and research direction. In his later career, he became concerned with the lack of new researchers entering the field of actinide studies. He was instrumental in the establishment of the first Glenn T. Seabo​​rg Institute with the twofold mission of encouraging the development of new researchers and the advancement of the scientific understanding of the f-block elements.


President Lyndon B. Johnson with Dr. Seaborg at EBR-I.

GTSI-INL Organization

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Terry A. Todd
(208) 526-3365
Deputy Director 
(208) 526-2399
Administative Support 
(208) 526-2559

Site contact: Jodi Vollmer​