EFFECT OF PARTICLE TRAPPING IN ICRF BEAM HEATED TOKAMAK PLASMAS
As is well known, the combined effects of resonant ion interaction with a magneto-acoustic wave and the Coulomb scattering processes leads to the development of anisotropic distributions with the most energetic particles in deeply trapped orbits. However, in an actual tokamak, trapped particle effects modify the tail formation process, and hollow distributions with the most energetic ions in banana orbits with their tips on or near the resonance layer are obtained. The effect of particle trapping in the tail formation process during second harmonic frequency heating are shown. In this paper the authors report the results of a numerical study of trapped particle effects on the tail formation process, heating efficiency, and thermonuclear yield in fundamental minority - second harmonic, and RF - beam plasma hybrid systems.
Bibliographic Reference: 12TH EUROPEAN CONFERENCE ON CONTROLLED FUSION AND PLASMA PHYSICS, BUDAPEST (HUNGARY), SEPT. 2-6, 1985 PP. 21-24 WRITE TO THE PUBLICATIONS OFFICER, JET JOINT UNDERTAKING, ABINGDON, OXON, OX14 3EA (UK), MENTIONING REPORT JET-P(85)10, 1985
Record Number: 1989124058300 / Last updated on: 1987-01-01
Available languages: en