The generation of radial electric fields through radiofrequency has been investigated in a toroidal magnetized plasma without rotational transform. By launching different kinds of electrostatic waves the plasma profiles were modified and sheared electric fields were generated. Direct observation of sheared E x B flows driven by fluctuations via Reynolds stress at the resonance layer of ion Bernstein is reported. These experiments provide a new bridge between experimental measurements and theoretical models in understanding the underlying physics of improved confinement regimes using RF in magnetically confined plasmas. © 1999 IOP Publishing Ltd.
Riccardi, C., Bevilacqua, C., Mozzi, D., Barni, R., Carrozza, R., Chiodini, G., et al. (1999). RF induced electric field and transport: experiments in non-fusion plasmas. PLASMA PHYSICS AND CONTROLLED FUSION, 41, B209-B220 [10.1088/0741-3335/41/12B/315].
RF induced electric field and transport: experiments in non-fusion plasmas
RICCARDI, CLAUDIA;BARNI, RUGGERO;FONTANESI, MARCELLO
1999
Abstract
The generation of radial electric fields through radiofrequency has been investigated in a toroidal magnetized plasma without rotational transform. By launching different kinds of electrostatic waves the plasma profiles were modified and sheared electric fields were generated. Direct observation of sheared E x B flows driven by fluctuations via Reynolds stress at the resonance layer of ion Bernstein is reported. These experiments provide a new bridge between experimental measurements and theoretical models in understanding the underlying physics of improved confinement regimes using RF in magnetically confined plasmas. © 1999 IOP Publishing Ltd.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.