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
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
Sam Altman steps down as Oklo board chair
Advanced nuclear company Oklo Inc. has new leadership for its board of directors as billionaire Sam Altman is stepping down from the position he has held since 2015. The move is meant to open new partnership opportunities with OpenAI, where Altman is CEO, and other artificial intelligence companies.
Technical Session
Monday, October 4, 2021|1:20–3:00PM EDT
Session Chair:
Tara Pandya (ORNL)
Session Organizer:
Dmitriy Y. Anistratov (NC State Univ.)
Student Producer:
Aaron Tamashiro (Oregon State Univ.)
To access the session recording, you must be logged in and registered for the meeting.
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To access paper attachments, you must be logged in and registered for the meeting.
The Limited Linear Source Approximation of the Method of Characteristics for Mitigating Negative Sources
1:20–1:45PM EDT
Sooyoung Choi (Univ. of Michigan), Brendan Kochunas (Univ. of Michigan)
Paper
The Legendre Polynomial Axial Expansion Method
1:45–2:10PM EDT
Nicholas F. Herring (Univ. of Michigan), Benjamin S. Collins (ORNL), Thomas J. Downar (Univ. of Michigan)
Linear Source Approximation of Angle Dependent Axial Source for Three-Dimensional Neutron Transport
2:10–2:35PM EDT
Jiwon Choe (Ulsan Nat'l Institute of Science and Technology), Deokjung Lee (Ulsan Nat'l Institute of Science and Technology)
Spatial Adaptive Mesh Refinement Applied to the Slice Balance Approach
2:35–3:00PM EDT
Michael W. Hackemack (Naval Nuclear Laboratory)
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