GENERATION OF SUPERTHERMAL ELECTRONS INTERACTING WITH LOWER HYBRID WAVES REVISITED
The problem of quasilinear diffusion of plasma electrons, resonantly interacting with lower-hybrid waves launched from the exterior, is examined within a self-consistent one-dimensional homogeneous model. An analytical solution is obtained, which allows the derivation of a simple formula for the plasma current in terms of the parameters characterizing the spectral distribution of the rf power source. The major outcome is a dramatic sensitivity of the plasma current to the presence of a small, high N-//EL component in the rf power source spectral distribution, in agreement with previous numerical calculations.
Bibliographic Reference: WRITE TO CONFEDERATION SUISSE, CENTRE DE RECHERCHES EN PHYSIQUE DES PLASMAS, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE, 21 AVENUE DES BAINS, CH-1007 (SWITZERLAND) MENTIONING REPORT LRP 254/85, 1985
Record Number: 1989123048500 / Last updated on: 1987-01-01
Available languages: en