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Conference Spotlight
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.
R. Vaidyanathan
Nuclear Science and Engineering | Volume 71 | Number 1 | July 1979 | Pages 46-54
Technical Paper | doi.org/10.13182/NSE79-A20328
Articles are hosted by Taylor and Francis Online.
A semianalytic method to solve the multigroup transport equation is presented. Here, the collision source is represented as a piecewise continuous function in space, preserving its finite spatial moments. The angular flux is analytically evaluated. The performance of the method is compared with the DSN method in a problem of gamma-ray transport through a 1-m-thick block of iron. It is found that one can obtain accurate solutions with the present method using relatively coarse spatial cells, leading to a significant reduction in computing time.
