ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
May 2025
Nuclear Technology
Fusion Science and Technology
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.
Advanced Reactor Safety (ARS)
Technical Session
Tuesday, June 18, 2024|1:00–2:45PM PDT|Palm B
Session Chair:
Aslak Stubsgaard
Session Organizer:
Alternate Chair:
David S. Grabaskas
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Risk-Informed and Performance-Based Approaches to Safety Analysis and Classification for Microreactors
1:00–1:20PM PDT
Alan Smith (Oklo Inc.), Patrick Everett (Oklo Inc.), Kellen McCarroll (Oklo Inc.), Alex Renner (Oklo Inc.)
Paper
Presentation Slides (Visible to Attendees)
Application of a Qualitative Risk-Informed, Performance-Based Approach for the MARVEL Microreactor at the Idaho National Laboratory
1:20–1:40PM PDT
Doug Gerstner (INL), Jason Andrus (INL), Amanda Foley (INL), Troy Reiss (INL)
Reducing the Maintenance Cost of Advanced Nuclear Reactors under Risk Constraints through Condition Monitoring, Probabilistic Risk Assessment, and Maintenance Optimization
1:40–2:00PM PDT
Yunfei Zhao (Univ. Maryland)
Addressing Uncertainties Across All Design Stages of Advanced Reactors Development
2:00–2:20PM PDT
Rawan Mustafa (NCSU), Mostafa Hamza (NCSU), Yahya A. Alzahrani (NCSU), Mihai A. Diaconeasa (NCSU)
Risk Informed Material Categorization
2:20–2:40PM PDT
Brian Kloiber (Oklo Inc.)
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