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Corrected Formulation for Estimation of Ripple in Large Aspect Ratio Tokamaks

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Abstract

The finite number of toroidal field coils of a tokamak destroys the perfect axisymmetry of the device. The coils produce a short wavelength ripple in the toroidal magnetic field strength as a field line follows round the torus, which becomes important in transport and confinement properties of plasma. Hence, a quick and accurate estimation of ripple becomes important. We have noticed that a previously reported analytical formulation by Princeton Plasma Physics Laboratory team is not applicable to our large aspect ratio tokamak, and have devised a slightly modified form which has greatly improved the accuracy of the analytical fit.

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References

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Authors and Affiliations

  1. Department of Physics, Amirkabir University of Technology, Tehran, Iran

    F. Dini

  2. School of Electrical Engineering, Sharif University of Technology, Tehran, Iran

    S. Khorasani

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  1. F. Dini
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  2. S. Khorasani
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Correspondence to F. Dini.

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Dini, F., Khorasani, S. Corrected Formulation for Estimation of Ripple in Large Aspect Ratio Tokamaks. J Fusion Energ 31, 195–197 (2012). https://doi.org/10.1007/s10894-011-9453-9

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  • DOI: https://doi.org/10.1007/s10894-011-9453-9

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