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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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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!
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Nuclear Science and Engineering
May 2025
Nuclear Technology
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Latest News
TerraPower begins U.K. regulatory approval process
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Technical Session|Monte Carlo Methods and Applications
Tuesday, April 29, 2025|3:15–4:55PM MDT|Lawrence B
Session Chair:
Jaakko Leppanen (VTT Technical Research Centre)
Alternate Chair:
Michael Rising (LANL)
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Small Sample Reactivity Worth Calculation: Comparison of Serpent2 and TRIPOLI4 Perturbation Techniques
3:15–3:40PM MDT
Federico Di Croce (SCK CEN), Pierre Leconte (CEA), Federico Grimaldi (SCK CEN), Antonin Krása (SCK CEN), Pierre-Etienne Labeau (Université Libre de Bruxelles), Jan Wagemans (SCK CEN)
Paper
Revisiting the Reactor Period Capabilities in TRIPOLI-4®
3:40–4:05PM MDT
Cecilia Montecchio (CEA), Davide Mancusi (CEA), Vincent Lamirand (École Polytechnique Fédérale de Lausanne), Wilfried Monange (IRSN), Andrea Zoia (CEA)
Multi Cycle Core Follow Calculations for Hanbit Unit 3 Using the McCARD/MASTER Code System with ENDF/B-VII.1 and ENDF/B-VIII.0 Evaluated Nuclear Data Libraries
4:05–4:30PM MDT
Jeong Woo Park (Kyung Hee Univ.), Ho Jin Park (Kyung Hee Univ.)
Developing a Nuclear Quality Assurance Compliant Design Methodology for Neutronic Analysis of Xe-100 Design
4:30–4:55PM MDT
Mehmet Turkmen (INL), Matilda A. Åberg Lindell (INL), Paolo Balestra (INL), Gokhan Yesilyurt (X-energy), Nathan George (X-energy)
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