Title :
Upgrading the General Atomics Radio-Frequency Sources for Higher Power
Author :
Greenough, Nevell ; Fredd, Elmer ; Hosea, Joel ; Pinsker, Robert ; Baity, F. Wallace ; Barber, Glenn ; Horton, Anthony
Author_Institution :
Princeton Univ., Princeton
Abstract :
Several years ago the Princeton Plasma Physics Laboratory (PPPL), Oak Ridge National Laboratory (ORNL) and General Atomics (G.A.) formed a collaboration to return the three G.A. radio-frequency (RF) sources to service, and to upgrade the two higher frequency range RF sources to have larger 2.5 megawatt power tubes for greater output power. To date, the 60 Mhz source is routinely operated into G.A.´s Doublet III D (DIIID) experiment at a power level up to 1 MW. The power tube upgrade for one of the higher frequency sources has been completed and has been tested to 1.4 MW into a test load and 750 kW into plasmas. Preparations for the tube upgrade for the other higher frequency source is now underway.
Keywords :
Tokamak devices; fusion reactor design; plasma sources; D III D design; ORNL; Oak Ridge National Laboratory; PPPL; Princeton Plasma Physics Laboratory; RF sources; higher frequency sources; radio-frequency sources; Anodes; Atomic measurements; Circuits; High power amplifiers; Laboratories; Physics; Plasma applications; Plasma sources; Radio frequency; Transmitters; Radio-frequency power amplifier; high-voltage FET; megawatt amplifier; vacuum-tube power amplifier;
Conference_Titel :
Fusion Engineering, 2007. SOFE 2007. 2007 IEEE 22nd Symposium on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-1193-1
Electronic_ISBN :
978-1-4244-1194-8
DOI :
10.1109/FUSION.2007.4337891
