Dynamic Confinement of ITER Plasma by X-Mode Driver at Electron Cyclotron Frequency Range*

Nonlinear interaction of the electron cyclotron X-Mode driver\footnote{R. Prater et. al., \textit{Nucl. Fusion }48, No 3 (March 2008).} with the ITER plasma leads to the dynamic rf plasma confinement in addition to the rf turbulent heating. The dynamics of unstable dissipative trapped particle modes (DTPM)\footnote{V. Alexander Stefan, 2009 APS April Meeting; May 2-5, 2009, Denver, Colorado; Abstract: K1.00028} strongly coupled to Trivelpiece-Gould (T-G) modes is studied for the gyrotron frequency of 170GHz; X-mode power of 24 MW CW; and with on-axis B-field of 10T. In the case of dynamic control of DTPM turbulence and for the heavily damped T-G modes, the energy confinement time scalings are evaluated. The ITER plasma-ignition criterion is analyzed in terms of the X-Mode power.