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Abstract

The results of these simulation calculations show, that if the pellet particles interact as neutrals with the recipient plasma, the effects caused by cx collisions may be quite substantial, depending upon the discharge regime and pellet parameters. The more important of these effects are as follows: (1) Charge exchange collisions may induce measurable plasma parameter changes at locations far from the pellet deposition site on a time scale much shorter than iota-diff. (2) Plasma particle losses caused by pellet induced cx collisions are, in general, negligible. (3) It is primarily the ions that are affected, the temperature change of the electron being only a fraction of that of the ions. (4) (central refuelling) (5) The results may be quite different for different discharge regime and pellet parameter combinations. (7) The answer to this question requires a better understnading of the details of the pellet ablation and ionization dynamics, particularly in the presence of different kinds of energy carriers.

Additional information

Authors: LENGYEL L MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING (GERMANY), MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, GARCHING (GERMANY)
Bibliographic Reference: WRITE TO MAX-PLANCK-INSTITUT FUER PLASMAPHYSIK, 8046 GARCHING BEI MUENCHEN (GERMANY) MENTIONING REPORT IPP 1-213, 1983
Record Number: 1989122040500 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en