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Accelerator Applications
The division was organized to promote the advancement of knowledge of the use of particle accelerator technologies for nuclear and other applications. It focuses on production of neutrons and other particles, utilization of these particles for scientific or industrial purposes, such as the production or destruction of radionuclides significant to energy, medicine, defense or other endeavors, as well as imaging and diagnostics.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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.”
Richard Ziskind, William E. Kastenberg
Nuclear Science and Engineering | Volume 44 | Number 1 | April 1971 | Pages 86-94
Technical Paper | doi.org/10.13182/NSE71-A18908
Articles are hosted by Taylor and Francis Online.
The stability problem for point kinetics models described by a set of nonlinear differential equations is treated by conversion to a set of Volterra integral equations. The kernels appearing in the resultant set are classified as to monotone behavior and comparison theorems are presented for the various classifications. The comparison theorems are utilized to calculate solution bounds and stability domains for three systems of practical interest: prompt power feedback, single temperature with prompt power coefficient, and the Hansen-Fuchs model. It is shown that similarity transformations are useful for enlarging the stability domain. An iteration procedure is also developed for a particular class of integral operators. This procedure is useful for finding convergent bounds for the true system behavior.
