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(ICP/07) Design Studies of Low-Aspect Ratio Quasi-Omnigenous Stellarators

(This paper was rapporteured in lecture EX4/2)

D. A. Spong, S. Hirshman, J. C. Whitson, D. B. Batchelor, R. Sanchez, B. A. Carreras, V. E. Lynch, J. F. Lyon, P. Valanju¹, W. Miner¹, P. Moroz², M. C. Zarnstorff³, D. Monticello³, A. S. Ware⁴, L. Garcia⁵

Oak Ridge National Laboratory, P. O. Box 2009 Oak Ridge, Tennessee 37831-8071
¹ University of Texas, Austin, Texas
² University of Wisconsin, Madison, Wisconsin
³ Princeton Plasma Physics Laboratory, Princeton, New Jersey
⁴ University of Montana, Missoula, Montana
⁵ Universidad Carlos III de Madrid, Madrid, Spain

Abstract.  Significant progress has been made in the development of new modest-size compact stellarator devices that could test optimization principles for the design of a more attractive reactor. These are 3 and 4 field period low-aspect-ratio quasi-omnigenous (QO) stellarators based on an optimization method that targets improved confinement, stability, ease of coil design, low-aspect-ratio, and low bootstrap current.

Read the full paper in PDF format.