Temperature dependence of the efficiency of current drive by lower hybrid waves in the T-7 tokamak
Alikaev V. V., Borshchegovskii A. A., Vasin N. L., Volkov V. V., Gorelov Yu. A., Datlov J., Ivanov D. P., Ivanov N. V., Il'in V. I., Kakurin A. M., Kislov A. Ya., Kovrov P. E., Kopecky V., Kochin V. A., Krishka L., Likin K. I., Khvostenko P. P., Chistyakov V. V., Shigaev A. F.
The efficiency of the current drive by lower hybrid waves in the T-7 tokamak has been measured as a function of the electron temperature. The observed increase in this efficiency with increasing temperature is compared with the prediction of the quasilinear theory, supplemented with the assumption that a mechanism operates to broaden the lower hybrid spectrum in the short-wave direction.