Flute like fluctuation suppression by the potential formation in GAMMA 10/PDX

In the hot ion mode experiments of the tandem mirror GAMMA 10/PDX plasma, suppression of the flute like fluctuation which rotation direction was ion diamagnetic rotation direction was observed during the axially confined potential formation with applying the electron cyclotron heating (ECH) at the barrier and plug cells for the first time. In the previous experiments, the electron diamagnetic rotation type fluctuations were clearly suppressed with application of both barrier (B) and plug (P) ECH. We show the flute like fluctuation of ion diamagnetic rotation is also suppressed with application of B/P-ECH.