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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver Downtown
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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Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
K. Serdula
Nuclear Science and Engineering | Volume 26 | Number 1 | September 1966 | Pages 1-12
Technical Paper | doi.org/10.13182/NSE66-A17182
Articles are hosted by Taylor and Francis Online.
Results of an experimental investigation indicate an improvement in accuracy of radial bucklings derived from activation distributions measured in reflected cylindrical systems can be obtained if: resultant activities are fitted to radial spatial functions derived from homogeneous two-group diffusion theory (i.e., Activity (R) = A J0(λR) + C I0(βR), where λ2 = radial buckling), and activation distributions are measured with a detector whose ratio of is high. Radial bucklings derived from activation distributions measured with In, Au and Cu foils in the same core showed that values derived from the In data were the least sensitive to the region of the analyzed. On the basis of a two-group model, radial activation distributions measured with a detector in a reflected core which satisfies the following conditions , where S1 = fast-thermal coupling coefficient, will yield a J0 distribution only, because the increase in activity from the increase in thermal flux is cancelled by the decrease in activity from the decrease in fast flux near the core-reflector boundary. Conclusions are substantiated by theoretical predictions based on the radial variation of fluxes calculated from two-group homogeneous diffusion theory.