Experimental studies of plasma-antenna coupling with the JET Alfvén Eigenmode Active Diagnostic

@article{Tinguely2020ExperimentalSO,
  title={Experimental studies of plasma-antenna coupling with the JET Alfv{\'e}n Eigenmode Active Diagnostic},
  author={R A Tinguely and P. Puglia and Nicolas Fil and S. Dowson and M. Porkolab and A. Dvornova and Ambrogio Fasoli and M. Fitzgerald and V. Guillemot and G. T. A. Huysmans and Mikhail Maslov and Sergei Sharapov and Duccio Testa and J. E. T. Contributors},
  journal={Nuclear Fusion},
  year={2020},
  volume={61}
}
This paper presents a dedicated study of plasma-antenna (PA) coupling with the Alfvén Eigenmode Active Diagnostic (AEAD) in JET. Stable AEs and their resonant frequencies f, damping rates γ < 0, and toroidal mode numbers n are measured for various PA separations and limiter versus X-point magnetic configurations. Two stable AEs are observed to be resonantly excited at distinct low and high frequencies in limiter plasmas. The values of f and n do not vary with PA separation. However… 

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