Effect of a central barrier potential on asymmetry-induced transport in a coaxial Malmberg–Penning trap

Experiments are presented measuring the radial particle flux produced when a central barrier potential is applied to ring of coaxial Malmberg–Penning trap at same time as voltages producing main asymmetry ϕ1(r) cos (kz) (lθ−ωt). When negative DC voltage entire ring, peak by reduced factor e(Veff/1.2), where Veff effective in volts. This also increases frequency this flux. asymmetric ± two azimuthally divided halves increase while AC decrease it. It shown that these produce their own transport and resulting modification plasma may be changing observed