Development of a conceptual ion cyclotron resonance heating (ICRH) system and its antenna design for CMFX.

The Centrifugal Mirror Fusion Experiment (CMFX) is a new experiment to centrifugally confine and stabilize plasmas confined in a magnetic mirror configuration. Radially sheared plasma rotation in the azimuthal direction (V_θ) will provide the initial plasma heating and instability suppression. There is plan to develop an ion cyclotron resonance heating (ICRH) system which can be used as possible heating mechanism in later stages to further increase plasma temperature. Analytical and simulation studies are required for magnetic field configurations with two species minority and hybrid heating and single species second harmonics heating frequencies in the density regime n=1×10¹⁸ - 5×10¹⁹ m^-3 with parabolic type density profile and a magnetic field profile with peak value B₀=0.5T. Initially, it is aimed to increase fuel ion temperature up to 20% with ICRH prototype system from its initial background plasma temperature 0.5keV. Here, `D' and `He' will be considered the minority heating species. An array of two loops and dipole straps are considered for ICRH antennas, and simulation studies are carried out with COMSOL Multiphysics. All analytical and simulation results will be presented.