Observation of plasma dynamics in a theta pinch by a novel method

A novel experimental method is proposed for observing plasma dynamics subjected to magnetic fields based on a newly developed cylindrical theta-pinch device. By measuring simultaneously the temporal profiles of multiple parameters including drive current, luminosity, density, and temperature, it provides basis theta pinch, such as shock transport magnetohydrodynamic instability. We show that evolution can be distinguished three phases. First, in radial implosion phase, trajectories current sheath wave are ascertained by combining data with snowplow model (Lee model) self-consistent way. Second, axial flow we demonstrate m = 0 (sausage) instability associated suppresses end-loss. Third, observed anomalous heating lower-hybrid-drift may develop near sheath, which induces resistivity enhanced heating. The present offer better understanding presence fields, thereby providing important support relevant research magneto-inertial fusion.