ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Nuclear Science and Engineering
August 2024
Nuclear Technology
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Latest News
BWXT will scout potential TRISO fuel production sites in Wyoming
BWX Technologies Inc. announced today that its Advanced Technologies subsidiary has signed a cooperation agreement with the state of Wyoming to evaluate locations and requirements for siting a potential new TRISO nuclear fuel fabrication facility in the state.
R. C. Erdmann, E. C. Gritton, M. J. Ozeroff
Nuclear Technology | Volume 22 | Number 2 | May 1974 | Pages 229-236
Technical Paper | Ocean—Nuclear Energy | doi.org/10.13182/NT74-A31405
Articles are hosted by Taylor and Francis Online.
The results of this study show that lightweight radioisotope heat sources can be considered for use undersea with little shielding necessary for electronics packages in close proximity to the heat source. Acceptable integrated electronic dose levels of 107 rad for gamma irradiation and 104 rep for neutron bombardment were obtained for extended mission times for the three isotopes considered. It is unnecessary to shield the isotope 210Po for electronic protection. However, use would be restricted because of its short half-life and this isotope could present special heat management problems not encountered with either 60Co or 244Cm. For 244Cm and 60Co it was found that the shield around the electronics package becomes important due to the strong back scattering effect of neutrons and gammas from the surrounding seawater. The 244Cm heat source appears to require less shielding to electronics level and would therefore take up less volume in the undersea system than the 60 Co heat source. Recovery of an isotope-powered undersea electronics package must be done remotely. It will be necessary to provide shielding to protect personnel engaged in the retrieval of the package (and also in the initial launching) and this vehicle cask will also have to provide for auxiliary cooling of the radioisotope heating source.