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!
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.
Technical Session|Fission Surface Power
Tuesday, May 6, 2025|10:00–11:40AM CDT|Atlantis/Discovery/Columbia (Marriott)
Session Chair:
Gregory Fedor (NASA Glenn Research Center)
Session Organizer:
Alternate Chair:
Mark Lefebvre (NASA Glenn Research Center)
Track Organizer:
Harold Gerrish (Marshall Space Flight Center)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
U.S. Commercial Launches of Space Nuclear Systems - Insurance and Indemnification Considerations
10:00–10:25AM CDT
Clarence H. Tolliver (Pillsbury Winthrop Shaw Pittman), Sidney L. Fowler (Pillsbury Winthrop Shaw Pittman), Jeffrey S. Merrifield (Pillsbury Winthrop Shaw Pittman)
Paper
Advanced Thermal Lunar Atomic System (ATLAS)
10:25–10:50AM CDT
Steve Sullivan (Univ. Rhode Island), Ryan Macaulay (Univ. Rhode Island), Jeffery Hahn (Univ. Rhode Island), Sami Akcakil (Univ. Rhode Island), Bahram Nassersharif (Univ. Rhode Island)
Key Design Trades for a Near-term Lunar Fission Surface Power System
10:50–11:15AM CDT
Lee Mason (NASA Glenn Research Center), Lindsay Kaldon (NASA Glenn Research Center), Sebastian Corbisiero (INL), DV Rao (INL)
Thermal Transport Analysis on Heat Pipe Reactor for Space
11:15–11:40AM CDT
Sung Nam Lee (KAERI), Sung Hoon Choi (KAERI), Hong-sik Lim (KAERI), Nam-il Tak (KAERI), Chan Soo Kim (KAERI)
To join the conversation, you must be logged in and registered for the meeting.
