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

fYear

2003

fDate

5-5 June 2003

Firstpage

473

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2003. ICOPS 2003. IEEE Conference Record - Abstracts. The 30th International Conference on

Conference_Location

Jeju, South Korea

ISSN

0730-9244

Print_ISBN

0-7803-7911-X

Type

conf

DOI

10.1109/PLASMA.2003.1230077

Filename

1230077