Free energy minimization approach to penetration of resonant magnetic perturbations in tokamaks | Zendy

D. Reiser | Zendy; M. Z. Tokaŕ | Zendy

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Free energy minimization approach to penetration of resonant magnetic perturbations in tokamaks

Author(s) -

D. Reiser,

M. Z. Tokaŕ

Publication year - 2009

Publication title -

physics of plasmas

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.75

H-Index - 160

eISSN - 1089-7674

pISSN - 1070-664X

DOI - 10.1063/1.3267845

Subject(s) - physics , collisionality , resonant magnetic perturbations , tokamak , plasma , magnetic field , penetration (warfare) , computational physics , quantum electrodynamics , atomic physics , quantum mechanics , operations research , engineering

By applying the principle of minimum free energy an analytical model for the plasma response to externally applied resonant magnetic perturbations (RMPs) is proposed. The results are compared with ATTEMPT code calculations [D. Reiser , Phys. Plasmas 16, 0042317 (2009)] and reproduce qualitatively and quantitatively the numerical results on the collisionality dependence of RMP penetration characteristics. Strong increase in the radial electric field with reduced screening at RMPs above a certain threshold is also reproduced by the model

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