Title :
RF high voltage performance of RF transmission line components on the DIII-D Fast Wave Current Drive (FWCD) System
Author :
Ferguson, S.W. ; Callis, R.W. ; Cary, W.P. ; Phelps, D.A. ; Ponce, D. ; Baity, F.W. ; Barber, G.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
30 Sep-5 Oct 1995
Abstract :
The performance of the high voltage RF components of the DIII-D Fast Wave Current Drive System (FWCD) have been evaluated under various conditions of insulator configuration, insulator material, insulating gas and gas pressure. The insulator materials that have been investigated are alumina, steatite, pyrex, quartz, and teflon. The results of this evaluation are discussed in this paper. Additionally an RF high potter was developed to aid in the evaluation of RF high voltage components. The high potter consists of a 50 Ω, 1/4 wavelength cavity with a variable position short and a 50 ohm matched tap at one end of the cavity. With this configuration RF voltages were generated in excess of 100 kVp in the frequency range 30 to 60 MHz
Keywords :
Tokamak devices; alumina; fusion reactor design; fusion reactor materials; fusion reactors; high-frequency transmission lines; high-voltage techniques; power transmission lines; quartz; 1/4 wavelength cavity; 30 to 60 MHz; 50 ohm; Al2O3; DIII-D; Fast Wave Current Drive; RF high potter; RF transmission line components; RF voltage; SiO2; alumina; gas pressure; high voltage RF components; insulating gas; insulator configuration; insulator material; pyrex; quartz; steatite; teflon; Coaxial components; Fixtures; Gas insulation; Impedance; Laboratories; Power transmission lines; Radio frequency; Testing; Transmission lines; Voltage;
Conference_Titel :
Fusion Engineering, 1995. SOFE '95. Seeking a New Energy Era., 16th IEEE/NPSS Symposium
Conference_Location :
Champaign, IL
Print_ISBN :
0-7803-2969-4
DOI :
10.1109/FUSION.1995.535963
