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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
September 2025
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August 2025
Fusion Science and Technology
Latest News
Ho Nieh nominated to the NRC
Nieh
President Trump recently nominated Ho Nieh for the role of commissioner in the Nuclear Regulatory Commission through the remainder of a term that will expire June 30, 2029.
Nieh has been the vice president of regulatory affairs at Southern Nuclear since 2021, though he is currently working as a loaned executive at the Institute of Nuclear Power Operations, where he has been for more than a year.
Nieh’s experience: Nieh started his career at the Knolls Atomic Power Laboratory, where he worked primarily as a nuclear plant engineer and contributed as a civilian instructor in the U.S. Navy’s Nuclear Power Program.
From there, he joined the NRC in 1997 as a project engineer. In more than 19 years of service at the organization, he served in a variety of key leadership roles, including division director of Reactor Projects, division director of Inspection and Regional Support, and director of the Office of Nuclear Reactor Regulation.
Technical Session|Sponsored by RPD
Friday, December 3, 2021|1:00–2:45PM EST |Columbia 1
Session Chair:
Massimiliano Fratoni
Session Organizer:
Alternate Chair:
Pavel V. Tsvetkov
Student Assistant:
Charles Goodman
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Fidelity Sufficiency in Reactor Physics Modeling of Research Reactors with MCNP and Serpent
1:05–1:25PM EST
Ronald Daryll E. Gatchalian (Texas A&M Univ.), Pavel V. Tsvetkov (Texas A&M Univ.)
Paper
SFR Support using the TRACE/PARCS Coupled Code System
1:25–1:45PM EST
Oscar Lastres (Purdue Univ.), Yunlin Xu (Purdue Univ.)
Investigating the AGN-201M Reactor's Unique Dominance Ratio
1:45–2:05PM EST
Mekiel Olguin (Univ. of New Mexico), Christopher Perfetti (Univ. of New Mexico), Forrest Brown (Univ. of New Mexico)
Single- and Multi-Physics Models of Advanced Reactors in the Virtual Test Bed
2:05–2:25PM EST
Bo Feng (ANL), Jun Fang (ANL), Thanh Hua (ANL), Nicolas Stauff (ANL), April Novak (ANL), Ling Zou (ANL), Rui Hu (ANL), Paolo Balestra (INL), David Reger (INL), Nicolas Martin (INL), Guillaume Giudicelli (INL), Abdalla Abou-Jaoude (INL)
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