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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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.”
Dan Gabriel Cacuci
Nuclear Technology | Volume 103 | Number 3 | September 1993 | Pages 303-309
Technical Paper | Nuclear Reactor Safety | doi.org/10.13182/NT93-A34853
Articles are hosted by Taylor and Francis Online.
The mapping ρn+1 = φ[ρn + kQ0(exp ρn — 1)] is shown to belong to the universal class of quadratic mappings with a negative Schwarzian derivative, thus rigorously providing the reasons underlying this mapping’s ability to follow the well-known Feigenbaum scenario to deterministic chaos. This scenario proceeds through an infinite cascade of period-doubling bifurcations, as noted in numerical experiments by Shabalin in a recent paper on power instabilities in periodically pulsed reactors. An analysis of this paper is also presented together with an overall perspective of the current state of research on chaotic dynamics in nuclear engineering systems.
