Title :
D-T gas injection system for TFTR neutral beams
Author :
Wright, K.E. ; Grisham, L.R. ; Kamperschroer, J.H. ; Oldaker, M.E. ; Pinter, G.R.
Author_Institution :
Princeton Plasma Phys. Lab., NJ, USA
fDate :
30 Sep-3 Oct 1991
Abstract :
The authors describe the design of the TFTR (Tokamak Fusion Test Reactor) NB (neutral beam) D-T Gas Injection System and the results of tests conducted to confirm its functionality. Detailed design is progressing for a NB TGIS (tritium gas injection system) which includes the option of injecting either H2, D2, or T2 into each of the 12 neutralizers at ground potential based on limited experiments to date. Most commercial components have been ordered and fabrication of special hardware is underway. Additional tests are planned to confirm LPIS (long pulse ion sources) operations compatibility with neutralizer gas injection, to inject the gas through shorter tubes which would simplify installation and interactions in LPIS parameters with alternating gases between pulses from H2 to D 2 3He. Tests of piezoelectric valves operated with the plenum pressure feedback controller will be conducted and a prototype NB TGIS will be installed and tested on TFTR during the September 91 to May 92 operational period. Installation of the complete system will take place during the pre-tritium shutdown presently scheduled for 1992-3
Keywords :
fusion reactor fuel; fusion reactor theory and design; tritium handling; valves; D-T gas injection system; D2; H2; T2; TFTR; Tokamak Fusion Test Reactor; design; long pulse ion sources; neutral beams; neutralizer gas injection; piezoelectric valves; plenum pressure feedback controller; tritium gas injection system; Fabrication; Fusion reactor design; Gases; Hardware; Helium; Inductors; Ion sources; Niobium; System testing; Tokamaks;
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.1991.218826
