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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
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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.
Technical Session|Sponsored by Fuels and Actinide Materials
Tuesday, December 12, 2023|3:10–4:50PM CST|Galerie 3
Session Chair:
Fidelma Giulia Di Lemma (INL)
Alternate Chair:
Assel Aitkaliyeva (Univ. Florida)
Track Organizers:
Jian Gan (INL)
Michael Tonks (Univ. Florida)
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Machine Learning Interatomic Potential for Qualitative Reproduction of Phase Transition of Metal Uranium at Ambient Pressure
3:10–3:30PM CST
Jae-Hyuk Kim (Seoul Nat'l Univ.), Takuji Oda (Seoul Nat'l Univ.)
Paper
Transmission Electron Microscopy Study of the Fuel Cladding Chemical Interaction Layer Forming in a U-10Zr Fuel Sample Irradiated to High Burnup
3:30–3:50PM CST
D. Salvato (INL), A. Pradhan (INL), F. Xu (INL), K.M. Paaren (INL), F. Teng (INL), F. Di. Lemma (INL), L. Capriotti (INL), T. Yao (INL)
A Study in the Thermal Transport Properties of Sodium-Bonded U-Zr Metallic Fuels for Fast Reactors
3:50–4:10PM CST
Cynthia Adkins (INL), Daniele Salvato (INL), Tiankai Yao (INL)
Scanning Electron Microscopy on Innovative Advance Reactor Metallic Fuel Concepts
4:10–4:30PM CST
Luca Capriotti (INL), Fidelma G. Di Lemma (INL), Daniele Salvato (INL), Tammy L. Trowbridge (INL), Fei Xu (INL), Tiankai Yao (INL), Jason M. Harp (ORNL)
Advanced Cladding Irradiation Experiment Capabilities at HFIR
4:30–4:50PM CST
P.A. Champlin (ORNL), A.G. Le Coq (ORNL), K.D. Linton (ORNL), C.M. Petrie (ORNL)
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