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The solution of the carbon impurity transport problem, presented here in a preliminary form, extends to a rather large integration domain and requires numerical methods. The problem is solved in the trace-impurity limit for a given hydrogen background plasma in contact with the ALT-II limiter assumed to be the dominant source of carbon atoms (due to physical sputtering by hydrogen ion bombardment). The theory accounts for drift motion, anomalous cross-field diffusion and classical transport of the C(z+)-ions with a strong collisional coupling to the electrons and hydrogen ions.

Additional information

Authors: CLAAßEN H A, Forschungszentrum Jülich GmbH (KFA) (DE);GERHAUSER H, Forschungszentrum Jülich GmbH (KFA) (DE);CLAA?EN H A, Forschungszentrum Julich GmbH (KFA) (DE)
Bibliographic Reference: Article: Proceedings of the 20th European Conference on Controlled Fusion and Plasma Physics, Vol. II (1993) pp. 799-802
Record Number: 199311150 / Last updated on: 1994-11-29
Original language: en
Available languages: en