One-dimensional model of a helicon discharge.

Sazontov, V. A.; Semenov, V. E.; Smirnov, A. I.

A simplified model describing the steady state of a helicon discharge in a low-pressure plasma is considered. The electron Langmuir frequency of the plasma produced by the discharge is shown to be much higher than the electron gyrofrequency. It is found that the gas medium is ionized and the electrons are heated primarily by the extraordinary mode. The calculated electron density depends nonmonotonically on the magnetic field, in agreement with the results of numerous experiments.

HELICON; PLASMA gases; ELECTRON distribution; MAGNETIC fields; PLASMA frequencies; LANGMUIR probes; ELECTRIC discharges

Plasma Physics Reports, 2007, Vol 33, Issue 11, p961

1063-780X

Academic Journal

10.1134/S1063780X07110086