Title :
Development of high power 170 GHz gyrotron for ITER
Author :
Sakamoto, Keishi ; Kasugai, Atsushi ; Minami, Ryutaro ; Takahashi, Koji ; Kobayashi, VNoriyuki ; Imai, Tsuyoshi
Author_Institution :
Plasma Heating Lab., Japan Atomic Energy Res. Inst., Ibaraki, Japan
fDate :
27 Sept.-1 Oct. 2004
Abstract :
The development of a 170 GHz gyrotron is underway for the ITER application. Up to now, experimental results of 0.5 MW/100 sec, 0.9 MW/9.2 sec were demonstrated. For a stable 1 MW/CW operation, the gyrotron and test facility are under modification: an efficiency improvement of built-in mode converter, beam current control with a pre-programmed control of a cathode heater power, and voltage between an anode and a cathode for constant output power. These contributes to the further stable 1 MW power output in long pulse operation.
Keywords :
electric current control; electric heating; fusion reactors; gyrotrons; 170 GHz; ITER; International Thermonuclear Experimental Reactor; anode; beam current control; built-in mode converter; cathode; cathode heater power; gyrotron; long pulse operation; output power; preprogrammed control; Cathodes; Cyclotrons; Diffraction; Electrons; Gyrotrons; Heating; Plasma stability; Plasma temperature; Power generation; Radio frequency;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1421977
