Concept design of the megawatt power level gyrotron stabilized by a low-power signal for DEMO project. (28th January 2022)

• Record Type: Journal Article
• Authors: Denisov, Gregory; Kuftin, Andrey; Manuilov, Vladimir; Chirkov, Alexey; Popov, Leonid; Zapevalov, Vladimir; Zuev, Andrey; Sedov, Anton; Zheleznov, Ilya; Glyavin, Mikhail
• Is Part Of: Nuclear fusion. Volume 62:Number 3(2022)
• Publication Date: 2022-01-28
• Subjects: gyrotron -- nuclear fusion -- tokamak -- high-power -- quasi-optical converter; Nuclear fusion -- Periodicals; 621.48405
• DOI: 10.1088/1741-4326/ac4946
• Languages: English
• ISSNs: 0029-5515

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 TE33, 13 or counter-rotating TE33, −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%.