Title :
A 1.5 MW, 110 GHz high efficiency gyrotron for tokamak plasma heating
Author :
Choi, E. ; Anderson, James P. ; Shapiro, Michael A. ; Temkin, Richard J.
Author_Institution :
Plasma Sci. & Fusion Center, MIT, Cambridge, MA, USA
Abstract :
Summary form only given, as follows. A 1.5 MW, 110 GHz gyrotron is under development for electron cyclotron resonance plasma heating in the DIII-D tokamak. The research is aimed to provide reliable CW operation of the gyrotron at high efficiency. The cavity is designed to avoid mode competition and mode conversion. The gyrotron is under test in short pulse operation. Over 1 MW of power in the design mode with an efficiency of 25% has been demonstrated in preliminary experiments using the newly designed cavity and an older triode magnetron injection gun (MIG). A new MIG electron gun designed specifically for the gyrotron has been built. The experiment on high power generation using the new MIG is under way.
Keywords :
Tokamak devices; gyrotrons; plasma radiofrequency heating; 1.5 MW; 110 GHz; DIII-D tokamak; advanced cavity; design efficiency; diffractive Q-factors; electron cyclotron resonance heating; high efficiency gyrotron; high power generation; mode cavity; plasma heating; reliable CW operation; short pulse operation; Circuits; Electrons; Gyrotrons; Heating; Impedance; Inductors; Plasma waves; Power generation; Radio frequency; Tokamaks;
Conference_Titel :
Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on
Conference_Location :
Jeju, South Korea
Print_ISBN :
0-7803-7911-X
DOI :
10.1109/PLASMA.2003.1230077
