1 EXC / P 403 New Experiments on the GOL-3 Multiple Mirror Trap

New physical results from recent experiments on collective plasma heating by a reduced-cross-section electron beam at GOL-3 are presented. Typical plasma parameters were ~10 m, 1-2 keV. Topics discussed are: new regime of device operation; efficiency of beam-plasma interaction and beam spectrum after passing the plasma; transverse energy losses, MHD activity and stabilization of the beam transport through the plasma; features of sub-THz emission at double plasma frequency; progress in electron beam generators for plasma heating. New GOL-3 experiments in general confirmed existing understanding of underlying physics for a new domain of operational parameters.