Title :
110 GHz ECH on DIII-D: system overview and initial operation
Author :
Cary, W.P. ; Allen, J.C. ; Callis, R.W. ; Doane, J.L. ; Harris, T.E. ; Moeller, C.P. ; Nerem, A. ; Prater, R. ; Remsen, D.
Author_Institution :
General Atomics, San Diego, CA, USA
fDate :
30 Sep-3 Oct 1991
Abstract :
A new high-power electron cyclotron heating (ECH) system has been introduced on DIII-D. This system is designed to operate at 110 GHz with a total output power of 2 MW. The system consists of four Varian VGT-8011 gyrotrons, (output power of 500 kW), and their associated support equipment. All components have been designed for up to a 10-s pulse duration. The 110-GHz system is intended to further progress in RF current drive experiments on DIII-D when used in conjunction with the existing 60-GHz ECH (1.6-MW) and 30-60-MHz ICH (2-MW) systems. H-mode physics, plasma stabilization experiments, and transport studies are also to be conducted at 110 GHz. The system design philosophy was based on experience gained from the existing 60-GHz ECH system. The consequences of these design decisions are addressed, as is the performance of various 110-GHz components
Keywords :
fusion reactor ignition; fusion reactor theory and design; gyrotrons; plasma instability; plasma radiofrequency heating; plasma toroidal confinement; 110 GHz; 2 MW; DIII-D; ECH; H-mode physics; ICH; RF current drive experiments; Varian VGT-8011 gyrotrons; design philosophy; high-power electron cyclotron heating; initial operation; plasma stabilization experiments; pulse duration; support equipment; system overview; total output power; transport studies; Cathodes; Cogeneration; Control systems; Cyclotrons; Electrons; Gyrotrons; Power generation; Power supplies; Superconducting coils; Superconducting magnets;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218701
