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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
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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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Fusion Science and Technology
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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.”
L. Patryl, D. Galeriu, P. Armand
Fusion Science and Technology | Volume 60 | Number 4 | November 2011 | Pages 1228-1231
Environmental and Organically Bound Tritium | Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) | doi.org/10.13182/FST11-A12652
Articles are hosted by Taylor and Francis Online.
Precipitation scavenging coefficients, such as the HTO washout rate, are often derived from raindrop intensity and average velocity of drop. In this study, several Drop Size Distribution (DSD) functions based on experimental data are compared to calculate HTO concentration, by using Chamberlain equation, then the washout rate. Variability of Gamma, Lognormal and Marshall-Palmer distributions on the rain concentrations and washout rates are estimated. The fall velocities of drops are computed for every DSD with Kessler, Andronache, Seinfield and Loosmore and empirical formula used in the CEA code called CERES which is the CEA reference computational tool for impact assessment. Results show that the HTO concentration in drops and the scavenging coefficient depends very closely on rain characteristics. More than the choice of velocity drop calculations, which represent an uncertainty less than 20%, the choice of the distribution is important and depends on the rain observed. Certain assumptions can lead to uncertainty about a factor 2 to 3 on HTO concentration in rain and on the washout rate.
