Title :
Pulsed microwave source utilizing an all solid state driver for the generation of time-modulated ECR plasmas
Author :
Myers, M.C. ; Hinshelwood, D.D. ; Meger, R.A. ; Pechacek, R.E.
Author_Institution :
Div. of Plasma Phys., Naval Res. Lab., Washington, DC, USA
Abstract :
An inexpensive pulsed microwave source has been developed for time-modulated electron cyclotron resonance (TMECR) plasma studies. Utilizing series IGBT switching, a high voltage modulator drives a standard 2M130 magnetron producing microwaves at 2.45 GHz. The microwave power waveform follows the TTL modulator trigger 2-500 /spl mu/s in width, at rep-rates up to 10 kHz and duty factors to 50%. Preliminary measurements of the TMECR plasma potential as a function of microwave pulsewidth, rep-rate, and duty factor are presented.
Keywords :
insulated gate bipolar transistors; magnetrons; microwave generation; modulators; plasma diagnostics; plasma radiofrequency heating; pulse generators; pulsed power supplies; switching circuits; voltage measurement; 10 kHz; 2 to 500 mus; 2.45 GHz; 2M130 magnetron; TTL modulator trigger; all solid state driver; duty factor; high voltage modulator; microwave power waveform; microwave pulsewidth; plasma potential measurement; pulsed microwave source; rep-rate; series IGBT switching; time-modulated ECR plasmas generation; time-modulated electron cyclotron resonance plasmas; Cyclotrons; Electrons; Insulated gate bipolar transistors; Magnetic switching; Plasma measurements; Plasma sources; Plasma waves; Pulse measurements; Resonance; Solid state circuits;
Conference_Titel :
Pulsed Power Conference, 1999. Digest of Technical Papers. 12th IEEE International
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-5498-2
DOI :
10.1109/PPC.1999.823636
