Concept design of the megawatt power level gyrotron stabilized by a low-power signal for DEMO project
Г. Г. Денисов, A. N. Kuftin, Vladimir Manuilov, A. V. Chirkov, L. G. Popov, V. E. Zapevalov, A. S. Zuev, A. S. Sedov, I. V. Zheleznov, M. Yu. Glyavin
Abstract
Abstract The specific features of the main components of the new powerful 230 GHz/80 kV/40 A gyrotron aimed to use in the future control fusion facility DEMO are described. The gyrotron design provides a stable output power generation of more than 1 MW using a superconducting magnet with a moderate size warm bore. Furthermore, the new original quasi-optical converter providing the gyrotron operation in three possible regimes—two free oscillation regimes with co-rotating TE 33,13 or counter-rotating TE 33,−13 mode, and the regime with frequency locking by the stable input signal—is suggested and optimized. The Gaussian content in the output wave-beam in all above-mentioned regimes is about 98%.