ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
Latest Magazine Issues
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
Panel and Technical Session|Fuel Cycles, Waste Management, and Decommissioning
Saturday, April 15, 2023|10:15–11:35AM EDT|Student Union 362B
Session Chair:
Evan Williams (Univ. Tennessee, Knoxville)
Alternate Chair:
Harrison Huegen (Univ. Tennessee, Knoxville)
Session Organizer:
Lance M. Drouet (Univ. Tennessee, Knoxville)
This session is sponsored by the ANS Decommissioning & Environmental Sciences and Fuel Cycle & Waste Management Divisions.
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Excess Criticality Mitigation for Pebble Bed Reactor Fuels by Pebble Displacement and Replacement
10:15–10:35AM EDT
Jonathan F. Wing (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville), Gordon M. Petersen (INL), Robert A. Joseph (INL)
Paper
Incorporation of Metal Taggants into Tetragonal Gamma-UO3
10:35–10:55AM EDT
Nicholas J. Wilson (University of Texas at El Paso), Ashley Shields (ORNL), Eunja Kim (University of Texas at El Paso)
Mapping of the LiCl-NaCl-UCl3 and KCl-NaCl-UCl3 Ternaries
10:55–11:15AM EDT
Ethan A. Schneider (The University of Texas at San Antonio), Thomas C. Kirtley (the University of Texas at San Antonio), Elizabeth S. Sooby (Univ. Texas, San Antonio), Liangyan Hao (The University of Pittsburgh), Soumya Sridar (The University of Pittsburgh), Wei Xiong (The University of Pittsburgh)
Evaluation of Contamination Limits for Equipment Release for A Former Uranium Mill
11:15–11:35AM EDT
Jillian L. Newmyer (Oregon State)
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