Alfvén-Wave Heating Experiment in the Heliotron-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi></mml:math>

Abstract

Plasma heating experiment is performed using a low-frequency shear Alfv\'en wave in the Heliotron-$D$ device. The excitation of the wave is confirmed, and an efficient plasma heating is observed; electrons are heated up to about 2 times and ions more than 1.5 times of the initial temperatures by applying an rf pulse of 400-kW power level.