Turbulent heating experiment in the STOR-1M tokamak

Abstract

In this paper the STOR-1M tokamak and its diagnostics are described. The plasma behavior before, during, and after turbulent heating is also discussed. Anomalously rapid current penetration has been observed during both the ohmic current-rise phase and the turbulent heating phase. The critical streaming parameter for the onset of current driven turbulence has been measured. Efficient electron and ion heating during turbulent heating has been observed. Plasma confinement properties show significant improvement, following the turbulent heating pulse, for a period much longer than the duration of the turbulent heating pulse.