Simulation of the breakdown in TEXTOR
Optimal conditions are found for the gas breakdown in the new TEXTOR tokamak with increasing flux swing. The stray poloidal magnetic field inside the vessel generated by the inductor current is found by numerical solution of the 2D magnetostatic problem. The conditions of the compensation of this field by currents in the poloidal field coils are obtained. It is found that the transition to the electron runaway regime defines severe limits for voltage values. By selecting optimal conditions for breakdown, the magnetic flux consumption can be reduced by 1-2 V.s in comparison with uncompensated regimes.
Bibliographic Reference: Article: 15th Symposium on Fusion Engineering, Hyannis (US) : Proceedings, Vol. II (1994) pp. 634-637
Record Number: 199411252 / Last updated on: 1994-11-25
Original language: en
Available languages: en