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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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General Kenneth Nichols and the Manhattan Project
Nichols
The Oak Ridger has published the latest in a series of articles about General Kenneth D. Nichols, the Manhattan Project, and the 1954 Atomic Energy Act. The series has been produced by Nichols’ grandniece Barbara Rogers Scollin and Oak Ridge (Tenn.) city historian David Ray Smith. Gen. Nichols (1907–2000) was the district engineer for the Manhattan Engineer District during the Manhattan Project.
As Smith and Scollin explain, Nichols “had supervision of the research and development connected with, and the design, construction, and operation of, all plants required to produce plutonium-239 and uranium-235, including the construction of the towns of Oak Ridge, Tennessee, and Richland, Washington. The responsibility of his position was massive as he oversaw a workforce of both military and civilian personnel of approximately 125,000; his Oak Ridge office became the center of the wartime atomic energy’s activities.”
Irina Potapenko, Stanislav Karpov
Nuclear Science and Engineering | Volume 197 | Number 9 | September 2023 | Pages 2450-2458
Research Article | doi.org/10.1080/00295639.2023.2189511
Articles are hosted by Taylor and Francis Online.
The paper is devoted to the numerical study of solutions to the Vlasov-Poisson-Landau kinetic equations for distribution functions with typical length such that , where stands for the Debye radius. It is also assumed that the Knudsen number , where denotes the mean free path of electrons. We use the standard model of plasma of electrons with a spatially homogeneous neutralizing background of motionless heavy ions. We study numerically the one-dimensional (1D) in space kinetic equation with the two-dimensional in velocity space (in three-dimensional spherical coordinates with axial symmetry) Landau collisional operator for small and different . The numerical results are presented and compared with appropriate solutions obtained earlier for the simplified BGK model. The results confirm numerically the existence of high-frequency oscillations of the electric field, which slowly decline due to collisions.
