Title :
Operation and control of JT-60U ECRF system
Author :
Shinozaki, S. ; Shimono, M. ; Terakado, M. ; Anno, K. ; Hiranai, S. ; Ikeda, Y. ; Ikeda, Yu. ; Imai, T. ; Kasugai, A. ; Moriyama, S. ; Sakamoto, K. ; Takahashi, K. ; Kajiwara, K. ; Tsuneoka, M. ; Yokokura, K. ; Fujii, T.
Author_Institution :
Naka Fusion Res. Establ., JAERI, Ibaraki, Japan
Abstract :
This paper describes the operation and control for the 110 GHz ECRF system for JT-60U, which has started operation since March in 1999. This system is composed of a 1 MW gyrotron, its high voltage power supply, a transmission line about 60 m in length and a quasi-optical antenna using a steerable mirror. Key issues of the ECRF system are to drive the gyrotron stably and to control the local RF deposition profile in a plasma
Keywords :
Tokamak devices; fusion reactor design; gyrotrons; plasma radiofrequency heating; 1 MW; 110 GHz; 60 m; ECRF system; JT-60U; control; gyrotron; high voltage power supply; operation; quasi-optical antenna; transmission line; Acceleration; Control systems; Gyrotrons; Mirrors; Power supplies; Power transmission lines; Radio frequency; Switches; Transmission line antennas; Voltage;
Conference_Titel :
Fusion Engineering, 1999. 18th Symposium on
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-5829-5
DOI :
10.1109/FUSION.1999.849866
