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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
Conference on Nuclear Training and Education: A Biennial International Forum (CONTE 2025)
February 3–6, 2025
Amelia Island, FL|Omni Amelia Island Resort
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
Latest News
Christmas Night
Twas the night before Christmas when all through the houseNo electrons were flowing through even my mouse.
All devices were plugged in by the chimney with careWith the hope that St. Nikola Tesla would share.
Wilfred Anthony Cooper, Sergi Ferrando i Margalet, Simon J. Allfrey, Johann Kißlinger, Horst F. G. Wobig, Yoshiro Narushima, Shoichi Okamura, Chihiro Suzuki, Kiyomasa Y. Watanabe, Kozo Yamazaki, Maxim Yu. Isaev
Fusion Science and Technology | Volume 46 | Number 2 | September 2004 | Pages 365-377
Technical Papers | Stellarators | doi.org/10.13182/FST04-A576
Articles are hosted by Taylor and Francis Online.
The impact of the bootstrap current is investigated on the equilibrium properties of a two-period quasi-axisymmetric stellarator reactor with free boundary and on the corresponding ideal magnetohydrodynamic stability properties. Although the magnetic field strength B spectrum is dominated by a m/n = 1/0 component, the discrete filamentary coils trigger some small-amplitude symmetry-breaking components that can disturb the quasi-symmetry of B. Finite causes the plasma column to shift outward in the absence of bootstrap current. With a self-consistent bootstrap current in the 1/ regime, the plasma becomes more elongated and more distorted in the horizontally elongated up-down symmetric cross section. At [approximately equal to] 3.25%, the plasma can be restored to its near-vacuum shape with the application of a vertical field with coil currents 20% of those of the modular coils, but at the expense of a significant mirror component in the B-field spectrum. The bootstrap current causes the rotational transform profile to increase above the critical resonant value (c = 1/2 for 1.1%) and combines with the Pfirsch-Schlüter current to destabilize a m/n = 2/1 external kink mode for 1.8%.