Thermonuclear Yield in DIII-D Tokamak Plasma due to the High Harmonics Relativistic Electron Bernstein Modes

The scaling laws for the thermonuclear yield, ratio of the thermonuclear power to the external power, for the case of excitation of Electron Bernstein Mode (EB) high harmonics, n(EB), n= 3{\ldots} 6 harmonic number, and lower hybrid waves are obtained for the DIII-D Tokamak plasma environment.\footnote{\textbf{R. Prater}, Phys. Fluids \textbf{11}(5), 2349 (2004).} The plasma-ignition criterion is analyzed in terms of the X-Mode power. An efficient control of anomalous absorption in DIII-D Tokamak plasma is proposed. In this novel model, the external electron cyclotron driver, X-mode, excites relativistic EB mode high harmonics.\footnote{\textbf{V. Stefan, }Anomalous Absorption of High-Harmonic Relativistic EB Modes in Spherical Tokamak Plasmas, 2007. American Physical Society\textbf{, }April 14--17, 2007, Jacksonville, Florida; \textbf{V. Stefan, }Thermonuclear Yield Due to the Relativistic EB Modes in Spherical Tokamak Plasmas, Sherwood Conference, March 30-April 2, 2008, Boulder, Colorado.} Nonlinear relativistic EB harmonics, in turn, are effectively absorbed via nonlinear collisional damping in the electron cyclotron high-harmonic resonance regions.