Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET | Zendy

Н. Н. Гореленков | Zendy; M. Mantsinen | Zendy; S. E. Sharapov | Zendy; Chen Cheng | Zendy; the JET-EFDA Contributors | Zendy

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Modeling of ICRH H-minority-driven n = 1 Resonant Modes in JET

Author(s) -

Н. Н. Гореленков,

M. Mantsinen,

S. E. Sharapov,

Chen Cheng,

the JET-EFDA Contributors

Publication year - 2003

Language(s) - English

Resource type - Reports

DOI - 10.2172/814750

Subject(s) - physics , joint european torus , precession , torus , jet (fluid) , toroid , ion , magnetohydrodynamics , atomic physics , nova (rocket) , computational physics , plasma , mechanics , quantum mechanics , tokamak , geometry , mathematics , aeronautics , engineering

A nonperturbative code NOVA-KN (Kinetic Nonperturbative) has been developed to account for finite orbit width (FOW) effects in nonperturbative resonant modes such as the low-frequency MHD modes observed in the Joint European Torus (JET). The NOVA-KN code was used to show that the resonant modes with frequencies in the observed frequency range are ones having the characteristic toroidal precession frequency of H-minority ions. Results are similar to previous theoretical studies of fishbone instabilities, which were found to exist at characteristic precession frequencies of hot ions

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