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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Nuclear Science and Engineering
November 2025
Nuclear Technology
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Fusion Science and Technology
Latest News
Senate EPW Committee to hold Nieh nomination hearing
Nieh
The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as commission at the Nuclear Regulatory Commission.
Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.
Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.
A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.
Advanced Reactor Safety (ARS)
Technical Session
Wednesday, June 19, 2024|1:00–2:45PM PDT|Palm A
Session Chair:
Koroush Shirvan (MIT)
Session Organizer:
Alternate Chair:
David S. Grabaskas
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Mechanical Aerosol Generation from Two-Phase Flow Pipe Breaks for Low Pressure FHR
1:00–1:20PM PDT
Kyoung M. Kang (Kairos Power), Quan Zhou (Kairos Power), Matthew Denman (Kairos Power), Timothy Drzewiecki (Kairos Power)
Paper
An Examination of Sodium Aerosol Behavior Based on Available Experimental Data
1:20–1:40PM PDT
Tyler Starkus (ANL), Dave Grabaskas (ANL), Dong Hoon Kam (ANL), Shayan Shahbazi (ANL)
Modeling Radionuclide Inventories in MSR Off-Gas Systems with Radiochemical Transport Analysis
1:40–2:00PM PDT
Shayan Shahbazi (ANL), Samuel Walker (INL), Mauricio Tano (INL), Tingzhou Fei (ANL), Yan Cao (ANL), David Grabaskas (ANL)
Implementation of the Sourdough Fuel Cycle and Waste Management Strategy in the EIRENE Novel Molten Salt Reactor Design
2:00–2:20PM PDT
C. Erika Moss (Univ. Tennessee, Knoxville), Ondrej Chvala (Univ. Tennessee, Knoxville), Donny Hartanto (ORNL), John P. Carter (INL)
Advancements in Depletion Modeling for Molten Salt Reactors Using OpenMC: A Case Study with the MSRE
2:20–2:40PM PDT
Lorenzo Chierici (Copenhagen Atomics), Erik Bergbäck Knudsen (Copenhagen Atomics)
Presented by Aslak Stubsgaard (Copenhagen Atomics)
Presentation Slides (Visible to Attendees) — Advancments in Depletion Modeling for Molten Salt Reactors using OpenMC: A Case Study with the MSRE
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