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Nathan S. Ryan

Nuclear Fuel Cycle and Advanced Nuclear Reactor Analyst

Nathan Ryan is a Nuclear Fuel Cycle and Advanced Reactor Analyst in the Reactors and Nuclear Fuel Cycle Analysis (RNFCA) Group within the Nuclear Energy and Fuel Cycle Division. He joined ORNL in 2025 and has worked on structural material supply chains, nuclear fuel supply scenarios, workforce availability studies, and molten salt reactor physics validation analyses among others.