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
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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
Monday, May 5, 2025|1:00–2:40PM CDT|Atlantis/Discovery/Columbia (Marriott)
Session Chair:
Mark Lefebvre (NASA Glenn Research Center)
Session Organizer:
Alternate Chair:
Robert Okojie (NASA Glenn Research Center)
Track Organizer:
Harold Gerrish (Marshall Space Flight Center)
Space fission power systems will require development of novel materials and manufacturing techniques to withstand the harsh combined space and radiation environment. This technical session will offer insight into several recent activities relating to the analysis and development of advanced manufacturing techniques as well as discussions of the challenges facing neutron moderator materials in space.
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Optimizing Additive Manufacturing of Metallic Hydrides Using Cellulose-Based Hydrogels for Advanced Reactor Applications
1:00–1:25PM CDT
Timothy F. DeFranco (Univ. Michigan, Ann Arbor), Kevin G. Field (Univ. Michigan, Ann Arbor)
Paper
The Difficulties of Using a Neutron Moderator in Space Reactors
1:25–1:50PM CDT
David I. Poston (Space Nuclear Power Corp.)
Experimental Analysis of Radiation Shielding Performance of Sintered, Cast, and 3D-Printed Lunar Regolith for Space Applications
1:50–2:15PM CDT
Joshua Gogolski (Pajarito Scientific Co.)
Fabrication of Inconel 718-CNT Composites for Structural Nuclear Applications
2:15–2:40PM CDT
Matthew J. Lynch (Univ. Michigan), Mirza A. Shawon (Stony Brook Univ.), Jason R. Trelewicz (Stony Brook Univ.), Kevin G. Field (Univ. Michigan)
To join the conversation, you must be logged in and registered for the meeting.
