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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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!
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Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Supreme Court rules against Texas in interim storage case
The Supreme Court voted 6–3 against Texas and a group of landowners today in a case involving the Nuclear Regulatory Commission’s licensing of a consolidated interim storage facility for spent nuclear fuel, reversing a decision by the 5th Circuit Court of Appeals to grant the state and landowners Fasken Land and Minerals (Fasken) standing to challenge the license.
Advances in Thermal Hydraulics (ATH 2024)
Technical Session
Monday, November 18, 2024|3:15–5:00PM EST|Coral A
Session Chair:
Bao-Wen Yang (Delta Energy Group)
Alternate Chair:
Jun Liao (Westinghouse)
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Feasibility Study on Load-Following Simulation Using SMR Innovation Platform
3:15–3:35PM EST
J.H. Seo (Ulsan Nat'l Institute Science and Technology), I.C. Bang (Ulsan Nat'l Institute Science and Technology)
Paper
Analysis of Station Blackout for the LDR-50 SMR in SPECTRA and Apros
3:35–3:55PM EST
Bart Verdonschot (Nuclear Research & Consultancy Group), Paul Breijder (Nuclear Research & Consultancy Group), Ferry Roelofs (Nuclear Research & Consultancy Group), Rebekka Komu (VTT)
Presentation Slides (Visible to Attendees)
Downward Reflood Quenching and the Effects of Power Distribution and Mixing Vane Spacer Grid near the Exit of Fuel Assemblies in SMRs and Other LWR Reactors
3:55–4:15PM EST
Bao-Wen Yang (DEQD Delta Energy Group New York), Jeremy Silber (DEQD Delta Energy Group New York), Stephanie H. Yang (DEQD Delta Energy Group New York), Christopher Lepore (DEQD Delta Energy Group New York), Eric Yang (Carp Assoc. USA), Bin Han (DEQD Institute for Advanced Research in Multiphase Flow and Energy Transfer), Aiguo Liu (DEQD Institute for Advanced Research in Multiphase Flow and Energy Transfer)
Scoping Analyses for the Definition of New Experiments for Natural Convection at High Rayleigh Numbers
4:15–4:35PM EST
A. Morente (EDF), J. Uribe (EDF), S. Benhamadouche (EDF), P. Rotach (EDF), J.-L. Vacher (EDF), M.S. Chae (PSI), D. Paladino (PSI)
Preliminary Thermal Margin Assessment at an External Reactor Vessel of SMR Using a System Code
4:35–4:55PM EST
Yonadan Choi (KAIST), Dong-Hun Shin (KAIST), Young Hee Kim (KAIST), Yong Hoon Jeong (KAIST)
Develop a Comprehensive Phenomena Identification and Ranking Table (PIRT) for AP300 SMR
4:55–5:15PM EST
Jun Liao (Westinghouse Electric Co.), Richard F. Wright (Westinghouse Electric Co.), Megan E. Durse (Westinghouse Electric Co.), Oriol N. Oliva (Westinghouse Electric Co.), Bryan Friedman (Westinghouse Electric Co.)
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