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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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|3:15–4:55PM CDT|Atlantis/Discovery/Columbia (Marriott)
Session Chair:
Abigail Rodriguez (NASA Glenn Research Center)
Session Organizer:
Alternate Chair:
Tyler Steiner (NASA Glenn Research Center)
Track Organizer:
Harold Gerrish (Marshall Space Flight Center)
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Mining Lunar Helium-3: The Financial Catalyst for Moon Mission
3:15–3:21PM CDT
Chris Salvino (Univ. Arizona), Drew DeJarnette (Lunar Helium-3 Mining, LLC), Moe Momayez (Univ. Arizona)
Paper
Advancing International Collaboration in Space Nuclear Safety
3:21–3:27PM CDT
Matthew E. Granger (Lockheed Martin Space)
The Potential for Offloading of Fission Surface Power Systems to the Lunar Surface
3:27–3:33PM CDT
Jacob R. Martin (NASA Langley Research Center), Julia E. Cline (NASA Langley Research Center)
Fission Space Nuclear Thermal Power Conversion with a Closed Brayton Cycle Development and Demonstration
3:33–3:39PM CDT
Erich Soendker (L3Harris), Leslie Woodger (L3Harris), David Hanks (L3Harris), Noah Forsyth (L3Harris), Donald Carlson (L3Harris)
Advances in Design and Multiphysics Analysis of Failsafe Heat Pipe Cooled Nuclear Reactor for Space and Surface Application
3:39–3:45PM CDT
Aanchal Gupta (Univ. Illinois, Urbana-Champaign), Rizwan Uddin (Univ. Illinois, Urbana-Champaign), Magdi Ragheb (Univ. Illinois, Urbana-Champaign)
Shielding Design, Configurations, and Materials Considerations for Fission Surface Power
3:45–3:51PM CDT
Alexis Maldonado (LANL), Alex Levinsky (LANL), Keenan Hoffman (LANL)
Radiation Hardened Self-Calibrating Temperature Sensors
3:51–3:57PM CDT
N. Dianne B. Ezell (ORNL), Frederick K. Reed (ORNL), Daniel C. Sweeney (ORNL)
ECSPLORER, Electronuclear System for Space: Reactor Studies for Performance Optimization
3:57–4:02PM CDT
Malcie Charlier (CEA), Jean-Baptiste Droin (CEA), Martin Mascaron (CEA), Pierre Sciora (CEA), Frédéric Bertrand (CEA), François Lanzetta (Univ. Franche-Comté)
Deimos, an Advanced and Space Reactor Testbed
4:02–4:08PM CDT
Alexis Maldonado (LANL), Alex Levinsky (LANL)
Commonalities in Terrestrial and Space Nuclear Fission Efforts
4:08–4:14PM CDT
Leroy A. Hardin (U.S. Nuclear Regulatory Commission)
Space Nuclear Reactor Radiation Monitor Development
4:14–4:20PM CDT
Suzanne F. Nowicki (LANL), Steve Wender (LANL), Alexis Maldonado (LANL), Kranti Gunthoti (LANL), Andrew Prince (LANL), Jesus P. Izaguirre (LANL)
Engineered Ceramic Composite Moderators for Fission Surface Power Applications
4:20–4:26PM CDT
Jason R. Trelewicz (Stony Brook Univ.), Lance L. Snead (Stony Brook Univ.), David J. Sprouster (Stony Brook Univ.), Nicholas R. Brown (Univ. Tennessee, Knoxville)
Key Post-irradiation Examination Results of Yttrium Hydrides as Irradiated at Us DOE Nuclear Test Reactor Infrastructure
4:26–4:32PM CDT
Mahmut N. Cinbiz (ORNL)
Investigations on Capillary Flow and Liquid Entrainment Characteristics in Braided Wire Wick Structures
4:32–4:38PM CDT
Yohan Kim (Kyung Hee Univ.), Hyungdae Kim (Kyung Hee Univ.)
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