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Conference Spotlight
2026 ANS Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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Nuclear Science and Engineering
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Latest News
NRC introduces microreactor regulatory framework
The Nuclear Regulatory Commission has released a new licensing framework for microreactors and similar reactor designs that may provide a more suitable pathway for applicants with simpler technologies.
The proposed rule—known as Part 57—is the latest to come out of the NRC’s rules review and overhaul stemming from the ADVANCE Act and 2025 nuclear-related executive orders. It is also the latest framework developed for advanced reactor designs shifting away from light water reactor technology, such as the Part 53 rule finalized in March.
Technical Session|Technology Research and Development
Thursday, April 30, 2026|2:00–3:20PM EDT|Room 306
Session Chair:
Allen Guzik
Alternate Chair:
Chris Venturella
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Unusual Chemical Reduction of Np Through Addition of Oxalic Acid
2:00–2:06PM EDT
Sara E. Gilson (Young Members Group), Connor J. Parker (ORNL), Kathryn M. Lawson (ORNL)
Paper
Comparative Morphology of Neptunium Dioxide: Implications of Synthesis Route
2:06–2:12PM EDT
Kathryn M. Lawson (ORNL), Sara E. Gilson (Young Members Group), Chris J. Dye (ORNL), Connor J. Parker (ORNL)
Thermal Decomposition of Neptunium Peroxides
2:12–2:18PM EDT
Christopher J. Dye (ORNL), Kathryn M. Lawson (ORNL)
From Chemistry to Performance: Understanding Sol–Gel Fuel Development for Radioisotope Heat Sources
2:18–2:24PM EDT
Ekaterina A. Dolgopolova (Zeno Power), Hilary A. Fitzgerald (Zeno Power)
A Digital Microfluidics Platform for Automated Pu-238 Analytics
2:24–2:30PM EDT
Neil Taylor (ORNL), Lauren Hoekstra (Univ. Tennessee, Knoxville), Colin Patricelli (Univ. Tennessee, Knoxville), Jisue Moon (ORNL), Ben Roach (ORNL), Kristian Myhre (ORNL)
Advancing Lunar Missions with Next-Generation Radioisotope Power Systems
2:30–2:36PM EDT
Lindsey Boles (Zeno Power)
Presented by Sarah Kyne (Zeno Power)
Industrial Manufacturing Process of AmO2 Powder from a Pu Solution
2:36–2:42PM EDT
Thierry Prevost (Orano Recycling), Mohamed Barhi (Orano Recycling), Charles Brachon (Orano Recycling)
F5 GPHS RTG: Return to the Future Thermal Vacuum Testing 1985 and 1995
2:42–2:48PM EDT
Boyd Allen Tolson (Univ. Dayton), Kenton Sherick (Univ. Dayton), Chadwick Barklay (Univ. Dayton)
Development of a Small Radioisotope Thermoelectric Generator for Mars Human Precursor Missions
2:48–2:54PM EDT
Michael Durka (NASA JPL), Vladimir Jovovic (NASA JPL), Eric Poliquin (NASA JPL), Jean-Pierre Fleurial (NASA JPL), Erik Brandon (NASA JPL)
Trade Study of Am-241 and Sr-90 Isotopes as Heat-Sources in Radioisotope Thermoelectric Generators for Space Applications
2:54–3:00PM EDT
Michael Durka (NASA JPL), Sabah Bux (NASA JPL), Christofer Whiting (NASA Glenn Research Center)
Tritium RHUs and Power Sources for the Lunar Surface
3:00–3:06PM EDT
Mark Stone (City Labs), James Cabauy (City Labs), Johann Hernandez (City Labs), Krystine Pimentel (City Labs), Jesse Grant (City Labs)
Maturing the European Radioisotope Dynamic Generator (RDG) for Enhanced Reliability and Multi-Mission Capability
3:06–3:12PM EDT
Mihails Scepanskis (Deep Space Energy), Janis Priede (Deep Space Energy)
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