Radio frequency plasma heating and current drive
The mechanisms underlying radiofrequency plasma heating and current drive in closed configurations are considered together with the theoretical tools describing them. The heating schemes of interest for thermonuclear devices range from the Alfven wave resonance frequency to the ion-cyclotron, lower hybrid and electron-cyclotron resonances. Heating at frequencies below the Alfven wave resonance (magnetic pumping in its numerous versions), which is of limited thermonuclear relevance, is presented for its fundamental aspects. More than any other heating scheme it involves properties of particle motion specific to the magnetic traps. Special attention is given to:- the relation between power absorption, flow and source terms in the Eulerian and in the Lagrangian description; adiabatic single particle behaviour; velocity-space aspects; slow timescale plasma response; waves in collisionless plasmas; resonances and RF energy flow; the lower hybrid wave problem.
Bibliographic Reference: Report: IPP 6/278 EN (1988)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 198910329 / Last updated on: 1994-12-01
Original language: en
Available languages: en