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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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NRC proposed rule for licensing reactors authorized by DOE, DOD
Nuclear reactor designs approved by the Department of Energy or Department of Defense could get streamlined pathways through the Nuclear Regulatory Commission’s commercial licensing process should applicants wish to push the technology into the civilian sector.
A proposed rule introduced April 2 by the NRC would “improve NRC licensing review efficiency, where applicable, by explicitly establishing by regulation an additional means for reactor applicants to demonstrate the safety functions of their reactor designs, and thus, would contribute to the safe and secure use and deployment of civilian nuclear energy technologies.”
Technical Session|Technology Research and Development
Wednesday, April 29, 2026|8:00–9:20AM EDT|Room 302/303/304
Session Chair:
June F. Zakrajsek (The Aerospace Corporation)
Alternate Chair:
Tyler Steiner (NASA GRC)
This session explores the design, performance modeling, and feasibility of advanced nuclear fission surface power systems, including Brayton cycle and molten salt reactor concepts, specifically tailored to provide reliable energy for future lunar missions.
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Feasibility Study on a Nuclear Reactor for Lunar Surface Application Using Natural Uranium Fuel
8:00–8:20AM EDT
Fumiya Sato (Tokyo City Univ.), Jun Nishiyama (Tokyo City Univ.)
Paper
Multiphysics Power Balance Modeling of a Fission Surface Power-Type Dual Brayton Gas Cooled Reactor System
8:20–8:40AM EDT
Anthony Y. Ghossein (Lockheed Martin Space), John P. Mulloy II (Lockheed Martin Space), Cole M. Mueller (Lockheed Martin Space), Joshua S. Bowman (Lockheed Martin Space), Alexis Maldonado (Lockheed Martin Space), Jesse D. Chuhta (Lockheed Martin Space), Kevin S. Bennion (Lockheed Martin Space), Chesney R. Boal (Lockheed Martin Space), Sean M. Smith (Lockheed Martin Missiles and Fire Control), Mikaela E. Blood (Lockheed Martin Space), Ian G. Collins (Lockheed Martin Space), Jeffrey J. Breedlove (Creare LLC)
Burnable-Absorber-Loaded Micro Molten Salt & Metal Reactor (MSMR) for Lunar Base Power
8:40–9:00AM EDT
Jaehyun Ryu (KAIST), Yonghee Kim (KAIST)
Cycle Performance Analysis and Preliminary Design of a PCHE Recuperator for a 100-kWth Space He-Xe Brayton Cycle
9:00–9:20AM EDT
Seunghwan Oh (KAERI), Sung Nam Lee (KAERI), Nam-il Tak (KAERI), Chan Soo Kim (KAERI)
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