21st joint workshop on electron cyclotron emission (ECE) and electron cyclotron resonance heating (ECRH)

Session

Wave Theory and Simulation

23 Jun 2022, 09:00

B72 - Amphitheatre (ITER Organization )

Conveners

Wave Theory and Simulation

• Ferran Albajar (Fusion for Energy)

123. Propagation properties of electron cyclotron wave with helical wavefront in magnetized plasma

Toru Tsujimura (National Institute for Fusion Science)

23/06/2022, 09:00

Invited

99. Numerical investigations of the O-X mode conversion process in MAST Upgrade

Alf Köhn-Seemann (IGVP, University of Stuttgart, Germany)

23/06/2022, 09:30

Oral

Electron Bernstein waves (EBWs) allow to couple energy to plasmas whose electron density exceeds the cut-off density of the injected microwave [1]. EBWs are electrostatic waves that have no high-density cut-off and are very well absorbed at the electron cyclotron resonance (ECR) and its harmonics, even at low electron temperatures (in contrast to conventional heating of O- or X-mode at...

75. Two-dimensional kinetic full wave analysis of O-X-B mode conversion in tokamak plasmas

Atsushi Fukuyama (Kyoto University)

23/06/2022, 09:50

Oral

see attached PDF file

78. Evaluation of the O-X mode conversion rate of the finite width wave in two dimensional systems

Dr Hiroe Igami (National Institute for Fusion Science)

23/06/2022, 10:10

Oral

For ECRH in the “over-dense” region where the electron density is more than the cutoff density, the electrostatic electron Bernstein wave (EBW) should be excited via the mode conversion process from the slow X (SX) mode at the upper hybrid resonance (UHR). Waves launched from the low magnetic field side transmit the evanescent region to couple with the SX mode. The previous linear mode...