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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
2027 ANS Winter Conference and Expo
October 31–November 4, 2027
Washington, DC|The Westin Washington, DC 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
November 2024
Latest News
Texas-based WCS chosen to manage U.S.-generated mercury
A five-year, $17.8 million contract has been awarded to Waste Control Specialists for the long-term management and storage of elemental mercury, the Department of Energy’s Office of Environmental Management announced on November 21.
S. W. Yoon, A. C. England, W. C. Kim, H. Yonekawa, J. G. Bak, B. H. Park, J. Kim, K. I. You, Y. M. Jeon, S. H. Hahn, Y. K. Oh, J. Chung, K. D. Lee, H. J. Lee, J. A. Leuer, and N. W. Eidietis
Fusion Science and Technology | Volume 65 | Number 3 | May 2014 | Pages 372-383
Technical Paper | doi.org/10.13182/FST13-706
Articles are hosted by Taylor and Francis Online.
KSTAR has a nonlinear magnetic material, INCOLOY® alloy 908 (Incoloy), in toroidal field and poloidal field (PF) coil systems. The effect of Incoloy on the magnetic configuration for the plasma initiation was investigated with systematic magnetic field measurements, finite element model (FEM) calculations, and in situ measurements of the magnetic properties. The profile of the vertical field near the field-null center was measured with a vertically movable electron beam (e-beam) probe and Hall sensor arrays in addition to pickup coils in the vacuum vessel. The measured profiles of the additional fields from Incoloy in the PF coils are in good agreement with the FEM calculations. In a typical KSTAR startup configuration, the effect of Incoloy is significant. First, it degrades the connection length significantly due to an additional vertical field in the field-null region, and second, it changes the radial and vertical stabilities by modifying the radial gradient of the vertical field. Initial up-down asymmetry measurements of the vertical fields showed very small static error fields from the PF coils. Calculations suggest that the main sources of the measured downshift of the plasma column are asymmetric eddy currents in the cryostat.
