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.
Explore membership for yourself or for your organization.
Conference Spotlight
2026 ANS Winter Conference & Expo
November 15–18, 2026
Phoenix, AZ|Arizona Grand Resort & Spa
Latest Magazine Issues
Aug 2026
Jan 2026
2026
Latest Journal Issues
Nuclear Science and Engineering
October 2026
Nuclear Technology
Fusion Science and Technology
August 2026
Latest News
Five companies, five bases: The Army’s Janus Program takes shape
Between the Nuclear Lifecycle Innovation Campuses and Nuclear Energy Launch Pad programs, August has already been a busy month for federal partnerships with the nuclear industry.
That trend continues: On Wednesday, the Department of the Army announced that it has selected five nuclear reactor developers—Antares Nuclear, BWXT Advanced Technologies, General Atomics Electromagnetic Systems, Radiant Industries, and Westinghouse Government Services—each paired with a different military installation, for its Janus Program.
This week, the nuclear community descended on Dallas, Texas, for the second annual Nuclear Energy Conference and Expo, the premier industry-focused nuclear conference cohosted by the American Nuclear Society and the Nuclear Energy Institute. Among the plenary panelists was Jeff Waksman, principal deputy assistant secretary of the Army for installations, energy, and environment. Waksman has been closely involved in the development of the Janus Program, and the morning before the program’s new selections were unveiled, he provided insights on its ultimate goals at NECX 2026.
Technical Session|Technology Research and Development
Thursday, April 30, 2026|10:10–11:30AM EDT|Room 302/303/304
Session Chair:
Greeta Thaikattil
Alternate Chair:
Corey Smith
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
High-Temperature Heat Pipe System for Stirling-Based Fission Surface Power
10:10–10:30AM EDT
Jeffrey Diebold (Advanced Cooling Technologies), Sandeep Hatte (Advanced Cooling Technologies), Brett Leitherer (Advanced Cooling Technologies), Calin Tarau (Advanced Cooling Technologies), Srujan Rokkam (Advanced Cooling Technologies), Jeffrey Hopkins (Intuitive Machines)
Paper
Experimental Study on Liquid Entrainment Limit in Capillary Heat Pipes for Space Reactors: Preliminary Results
10:30–10:50AM EDT
Yohan Kim (Kyung Hee Univ.), Hyungdae Kim (Kyung Hee Univ.)
A Reduced-Order Thermal-Structural-Neutronics Model for KRUSTY-Style Fission Surface Power with Heat-Pipe Constraints
10:50–11:10AM EDT
Vishnu Reddy (Georgia Tech), Corey Smith (Georgia Tech), Dan Kotlyar (Georgia Tech)
High-Temperature Heat Pipes for Solid-State SPAR Reactor
11:10–11:30AM EDT
Brett Leitherer (Advanced Cooling Technologies), Mason Pratt (Advanced Cooling Technologies), Jeffrey Diebold (Advanced Cooling Technologies), Calin Tarau (Advanced Cooling Technologies), Srujan Rokkam (Advanced Cooling Technologies)