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.
19th International Conference on Probabilistic Safety Assessment and Analysis (PSA 2025)
Technical Session|Sponsored by NISD
Monday, June 16, 2025|3:15–5:00PM CDT|Chicago Ballroom C
Session Chair:
Sai Zhang
Alternate Chair:
Ha H. Bui
Session Organizer:
David Grabaskas
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Rancor-HUNTER: Using a Simulator Engine for Realistic Human Performance Modeling of Nuclear Power Operations
3:15–3:35PM CDT
Ronald L. Boring (Idaho National Laboratory), Roger Lew (University of Idaho), Thomas A. Ulrich (Idaho National Laboratory), Jooyoung Park (Idaho National Laboratory), Jisuk Kim (Idaho National Laboratory), Olugbenga Gideon (University of Idaho)
Paper
Dependent Time Model for Human Reliability Analysis with Performance Shaping Factors
3:35–3:55PM CDT
Gyun Seob Song (Chung-Ang University), Man Cheol Kim (Chung-Ang University)
A Mechanistic Approach to Human Reliability Analysis
3:55–4:15PM CDT
Torrey Mortenson (Idaho National Laboratory)
Comparison of NRC IDHEAS-ECA to EPRI HRA Approach
4:15–4:35PM CDT
Kaydee K. Gunter (Jensen Hughes Inc.), Mary Presely (EPRI), Jeff A. Julius (Jensen Hughes)
Novel Quantitative Causal Logic Models for Human Reliability Analysis
4:35–4:55PM CDT
Camille Levine (University of Maryland, College Park), Katrina M. Groth (University of Maryland)
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