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Kinetic simulations of X-B and O-X-B mode conversion and its deterioration at high input power
A. V. Arefiev, I. Y. Dodin, A. Köhn +4
Spherical tokamak plasmas are typically overdense and thus inaccessible to externally-injected microwaves in the electron cyclotron range. The electrostatic electron Bernstein wave…
Kinetic simulations of X-B and O-X-B mode conversion
A. V. Arefiev, E. J. Du Toit, A. Köhn +3
We have performed fully-kinetic simulations of X-B and O-X-B mode conversion in one and two dimensional setups using the PIC code EPOCH. We have recovered the linear dispersion rel…
Long Pulse EBW Start-up Experiments in MAST
V. F. Shevchenko, T. Bigelow, J. B. Caughman +8
The non-solenoid start-up technique reported here relies on a double mode conversion for electron Bernstein wave (EBW) excitation. It consists of the mode conversion of the ordinar…