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.