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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Shunsuke Uchida, Masao Kitamura, Makoto Kukuchi, Hideo Yusa, Katsumi Ohsumi, Yasunori Matsushima
Nuclear Science and Engineering | Volume 69 | Number 1 | January 1979 | Pages 78-85
Technical Note | doi.org/10.13182/NSE79-A21288
Articles are hosted by Taylor and Francis Online.
An empirical formula is proposed to estimate the shutdown dose rates around the primary cooling system of boiling water reactors. The formula is characterized by defining the average activation time of 60Co, which is proportional to the iron feed rate into the reactor. The constants of the formula are determined by quantitatively evaluating the static balances of corrosion products in the primary coolant on the basis of measured results from the Shimane Nuclear Power Station of Chugoku Electric Power Company. The effects of four radiation reduction procedures on the shutdown dose rate are evaluated using the proposed formula. It is demonstrated that the oxygen injection method is the most effective procedure to reduce the dose rate (to ∼¼). Further reduction (to ∼1/50) can be achieved by a combination of the four procedures.
