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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.”
Shigeyuki Nakanishi, Takusaburo Hosoya, Shigenobu Kubo, Shoji Kotake, Misao Takamatsu, Takafumi Aoyama, Iwao Ikarimoto, Jungo Kato, Yoshio Shimakawa, Kiyoshi Harada
Nuclear Technology | Volume 170 | Number 1 | April 2010 | Pages 181-188
Technical Paper | Special Issue on the 2008 International Congress on Advances in Nuclear Power Plants / Nuclear Plant Operations and Control | doi.org/10.13182/NT10-A9456
Articles are hosted by Taylor and Francis Online.
A sodium-cooled fast reactor (SFR) self-actuated shutdown system (SASS) is a passive safety feature by which control rods are inserted by gravity force and the rods would be detached by a rise in coolant temperature under anticipated transient without scram (ATWS) conditions. Various out-of-pile tests have already been carried out to investigate the basic characteristics of SASS, and a demonstration test of the holding stability under reactor operation conditions has been performed, where a function test of the driving system to reconnect and pull out the control rod has been done in the experimental reactor JOYO. Element irradiation tests have also been conducted to confirm that there is no impact from irradiation. The effectiveness of SASS for the reference core design of the Japan SFR (JSFR) has been evaluated through all ATWS types. As a result, it is ensured that JSFR will have a reliable passive shutdown system.
