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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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Fusion Science and Technology
May 2025
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.
M. Inutake
Fusion Science and Technology | Volume 39 | Number 1 | January 2001 | Pages 49-55
Invited Review Lectures | doi.org/10.13182/FST01-A11963414
Articles are hosted by Taylor and Francis Online.
Radial potential control by use of end-plate biasing in the GAMMA10 tandem mirror is very effective to suppress low-frequency fluctuations and to achieve a reactive plasma with hot ion temperature of up to 10 keV. In order to clarify effects of both radial electric field and its shear on low-frequency fluctuations, basic experiments have been carried out a small linear device, QT-U of Tohoku University, in which systematic control and precise measurements of radial potential profiles can be done. Flute-mode and drift-mode fluctuations appear in the radial region with steep density gradient. The observed flute-mode is identified as Kelvin-Helmholtz instability driven by strong E × B drift shear. The drift-mode fluctuations depend complicatedly on both radial electric field and its shear. The drift-mode is destabilized in the region of weakly negative electric field. In the strong Eτ region, the mode is suppressed, irrespective of its sign. This behavior agrees qualitatively with that observed in the ECH mode of GAMMA10. The drift-mode in the QT-U is clearly stabilized by the increase in net ion drift shear which is defined as the sum of E × B drift shear and ion diamagnetic drift shear.
