Effect of microwave reflection from the region of electron cyclotron resonance heating in the L-2M stellarator

Batanov, G. M.; Borzosekov, V. D.; Kolik, L. V.; Konchekov, E. M.; Malakhov, D. V.; Petrov, A. E.; Sarksyan, K. A.; Sakharov, A. S.; Skvortsova, N. N.; Stepakhin, V. D.; Kharchev, N. K.
November 2013
Plasma Physics Reports;Nov2013, Vol. 39 Issue 11, p882
Academic Journal
In experiments on electron cyclotron resonance (ECR) heating of plasma at the second harmonic of the electron gyrofrequency in the L-2M stellarator, the effect of partial reflection of high-power gyrotron radiation from the ECR heating region located in the center of the plasma column was revealed. The reflection coefficient is found to be on the order of 10 −3. The coefficient of reflection of an extraordinary wave from the second-harmonic ECR region is calculated in the one-dimensional full-wave model. The calculated and measured values of the reflection coefficient are found to coincide in order of magnitude.


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