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.
Technical Session
Wednesday, September 28, 2022|10:00AM–12:05PM PDT|Seaport
Session Chair:
Jeffrey A. Favorite (LANL)
Session Organizer:
Alternate Chair:
John Bess (JFoster & Associates, LLC)
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Multifaceted Coded Nuclear Data Libraries Assemblage, Verification and Validation: TENDL-2021
10:00–10:25AM PDT
J-Ch. Sublet (IAEA), Arjan Koning (IAEA), Dimitri Rochman (Paul Scherrer Institut), Mark R. Gilbert (UKAEA), Albert C. Kahler (Kahler Nuclear Data Services), Cedric Jouanne (CEA), Jaakko Leppanen (VTT Technical Research Centre of Finland), Steven C. van der Marck (NRG), Paul Romano (ANL)
Paper
Using the MCNP6 Perturbation Capability for Source Nuclide Density Sensitivities
10:25–10:50AM PDT
Sensitivity Analysis in Coupled Radiation Transport Simulations
10:50–11:15AM PDT
Christopher M. Perfetti (Univ. New Mexico), Brian Franke (Sandia), Ron Kensek (Sandia), Aaron Olson (Sandia)
New Capabilities in SENSMG, a Tool for Multigroup Discrete Ordinates Sensitivity Analysis
11:15–11:40AM PDT
Jeffrey A. Favorite (LANL), Alexander R. Clark (LANL)
Availability of Shielding Benchmark Experiment Data in the ICSBEP Handbook
11:40AM–12:05PM PDT
John D. Bess (JFoster and Assoc.), Tatiana Ivanova (OECD NEA), Shuichi Tsuda (Japan Atomic Energy Agency)
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