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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|1:00–2:00PM EDT|Room 306
Session Chair:
Nicholas Brooks
Alternate Chair:
Stephanie Manasterski
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Harnessing Cloud and AI to Accelerate Space Nuclear Technology Development
1:00–1:06PM EDT
Juan Carlos Lopez (Microsoft), Nelli Babayan (Microsoft)
Paper
Innovative UZrCN Synthesis by Nitrogen Heat Treatment of UZrC
1:06–1:12PM EDT
David Sanches (INL), James Zillinger (INL), Sarah Hamilton (INL)
ZrC Grain Growth at Conditions Relevant to Space Nuclear Propulsion
1:12–1:18PM EDT
Katherine Montoya (ORNL), Bryan Conry (ORNL), Wesley Jones (ORNL), Ryan Heldt (ORNL), Brandon Wilson (ORNL), Eddie Lopez-Honorato (ORNL)
Advancing Space Nuclear Fuel Development: A Comprehensive Strategy from Prototyping to Production
1:18–1:24PM EDT
Sabrina McCoy (BWX Technologies), Ryan Swanson (BWX Technologies)
Comprehensive Uncertainty Quantification Approach for First of Kind Space Reactors Neutronics Modeling
1:24–1:30PM EDT
Chase Lawing (BWX Technologies), Ryan Swanson (BWX Technologies), Andy Rivas (BWX Technologies)
Applying a Comprehensive Uncertainty Quantification Framework to U.S. Government Space Reactor Designs: Insights from Propulsion and Power Reactors
1:30–1:36PM EDT
Assessing Reactivity Uncertainty in Space Reactors Under Nuclear Data Limitations: Covariance Inconsistency, Missing Benchmarks, and Validation Gaps
1:36–1:42PM EDT
Ryan Swanson (BWX Technologies), Chase Lawing (BWX Technologies), Andy Rivas (BWX Technologies)
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