Title :
The development of high frequency, megawatt gyrotrons for ITER
Author :
Kreischer, K.E. ; Danly, B.G. ; Hogge, J.-P. ; Kimura, T. ; Temkin, R.J. ; Read, M.E.
Author_Institution :
Plasma Fusion Center, MIT, Cambridge, MA, USA
Abstract :
The present focus of the MIT program is to demonstrate that efficient operation can be achieved with a gyrotron oscillator at power levels in excess of 1 MW and frequencies between 140 and 200 GHz. These are the operating parameters required for the International Thermonuclear Experimental Reactor (ITER) for plasma initiation, bulk heating, and current drive. Two major experiments are being conducted at MIT as part of this program: A 170 GHz, 1 MW gyrotron operating in the TE28,8,1 mode using a conventional, tapered cavity, and a coaxial 140 GHz, 3 MW gyrotron oscillating in the TE21,13,1 mode. This paper reviews design issues that were investigated during the construction of these experiments, and also presents results from initial operation of the coaxial gyrotron
Keywords :
gyrotrons; millimetre wave oscillators; millimetre wave tubes; plasma radiofrequency heating; 1 MW; 140 to 200 GHz; 170 GHz; 3 MW; EHF; ITER; International Thermonuclear Experimental Reactor; MIT program; MM-wave tubes; TE21,13,1 mode; TE28,8,1 mode; bulk heating; coaxial gyrotron; current drive; gyrotron oscillator; megawatt gyrotrons; plasma initiation; tapered cavity; Boring; Coaxial components; Frequency; Gyrotrons; Heating; Magnetic fields; Oscillators; Plasmas; Tellurium; Voltage;
Conference_Titel :
Electron Devices Meeting, 1995. IEDM '95., International
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-2700-4
DOI :
10.1109/IEDM.1995.499182
