Plasma heating by a rotating relativistic electron beam

[[abstract]]It is shown that when a rotating relativistic electron beam of energy 500 keV and current 20-40 kA is injected into a magnetically confined plasma, optimum energy transfer efficiency occurs at a plasma density of 1014 cm-3. A peak temperature of 1 keV is observed for the plasma. Radial plasma oscillations, characteristic of the magnetosonic mode, are observed. A theoretical model is proposed which predicts the variation of plasma electron density and temperature during the beam pulse.[[fileno]]2010126010003[[department]]物理