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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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.
Fumihisa Nagase, Takashi Ohtomo, Hiroshi Uetsuka
Nuclear Technology | Volume 208 | Number 3 | March 2022 | Pages 484-493
Technical Paper | doi.org/10.1080/00295450.2021.1905472
Articles are hosted by Taylor and Francis Online.
A control rod alloy composed of silver (Ag), indium (In), and cadmium (Cd) was heated in argon or oxygen at 1073 to 1673 K for 60 to 3600 s. Then, the release behaviors of the elements were analyzed. The elemental release was quite limited below the liquefaction temperature. In argon, almost the entire Cd content was released within 3600 s at >1173 K and within 60 s at >1573 K while the released fractions of Ag and In were <3% and <8%, respectively. In oxygen, the release of Cd, which was quite small at temperatures lower than 1573 K, largely increased to ~30% to 50% at 1673 K for short periods. The releases of Ag and In were also small in oxygen under the analyzed conditions. The comparison with the experimental data suggests that conventional empirical release models may underestimate the Cd release at lower temperatures just after control rod failure in severe accidents.