Title :
Mode selection and resonator design for DEMO gyrotrons
Author :
Franck, Joachim ; Illy, Stefan ; Avramidis, Konstantinos A. ; Jelonnek, John ; Thumm, Manfred
Author_Institution :
Inst. for Pulsed Power & Microwave Technol. (IHM), Karlsruhe Inst. of Technol. (KIT), Karlsruhe, Germany
Abstract :
Physical design studies towards DEMO-compatible gyrotrons (frequency above 230 GHz, output power above 1 MW, frequency-tunable) have been started at KIT. Usage of very high-order modes (eigenvalue above 120) is necessary and allows a novel mode-selection strategy. Two different resonator designs for 237.5 GHz gyrotrons are under investigation.
Keywords :
gyrotrons; millimetre wave resonators; millimetre wave tubes; DEMO-compatible gyrotrons; demonstration power plant; frequency 237.5 GHz; high-order modes; mode-selection strategy; physical design study; resonator design; Eigenvalues and eigenfunctions; Electron beams; Gyrotrons; Indexes; Plasmas; Power generation; Resonant frequency; DEMO; gyrotron; high-order mode; mode selection; plasma heating; resonator design; tokamak;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857475
