A MULTIFREQUENCY GYROTRON FOR PLASMA-HEATING AND DIAGNOSTICS

Gyrotrons are regarded as a necessary component of any modern fusion m achine. They are presently used primarily to heat the electron compone nt of the plasma. However, gyrotrons can be utilized also to drive the current, to stabilize MHD modes, to measure the ion temperature by me ans of the collective Thomson scattering, to mention just a view plasm a diagnostic purposes. In this work we present a design of a multifreq uency gyrotron, i.e., a gyrotron which generates RF power simultaneous ly at several frequencies and discuss possible applications of such tu bes.