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Young Members Group
The Young Members Group works to encourage and enable all young professional members to be actively involved in the efforts and endeavors of the Society at all levels (Professional Divisions, ANS Governance, Local Sections, etc.) as they transition from the role of a student to the role of a professional. It sponsors non-technical workshops and meetings that provide professional development and networking opportunities for young professionals, collaborates with other Divisions and Groups in developing technical and non-technical content for topical and national meetings, encourages its members to participate in the activities of the Groups and Divisions that are closely related to their professional interests as well as in their local sections, introduces young members to the rules and governance structure of the Society, and nominates young professionals for awards and leadership opportunities available to members.
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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.”
Kotaro Nakada, Kazumi Miyagi, Norihiko Handa, Sadao Hattori
Nuclear Technology | Volume 82 | Number 2 | August 1988 | Pages 132-146
Technical Paper | Fission Reactor | doi.org/10.13182/NT88-A34102
Articles are hosted by Taylor and Francis Online.
Taking the decay heat removal system of a liquid-metal fast breeder reactor (LMFBR) as an example, a new reliability analysis method has been developed that can estimate how a failure occurring in a subsystem of a redundant system proliferates to another subsystem and how the independence of the redundant system is gradually lost. The Monte Carlo method is employed in the state transition representation. Environment changes evaluated from physical parameters, which correspond to failure time and to time- and sequence-dependent failure rates, are used to evaluate the stress-strength model. The failure rates derived are used to identify subsequent sequences. As a result of applying this technique to the decay heat removal operation of an LMFBR, a more realistic value of the unreliability has been obtained in a reasonable computation time, and the validity of this technique has been confirmed. The investigation of the interaction between the system and the pipe in the decay heat removal system has revealed that the influence is small under conditions set for this study.
