Some necessary conditions for a critical velocity interaction between the ionospheric plasma and a xenon cloud

Details Some necessary conditions for a critical velocity interaction between the ionospheric plasma and a xenon cloud Some necessary conditions for a critical velocity interaction between the ionospheric plasma and a xenon cloud

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980georl...7..933a&link_type=abstract

Geophysical Research Letters, vol. 7, Nov. 1980, p. 933-936. Research supported by the Statens Naturvetenskapliga Forskningsrad

Physics

3

Artificial Clouds, Critical Velocity, Gas Ionization, Xenon, Charge Transfer, Collisional Plasmas, Electron Energy, Energy Transfer, Rates (Per Time)

Scientific paper

The condition for an experiment to study the critical ionization velocity effect in the interaction between a xenon cloud, released from a satellite, and the ionospheric plasma are investigated. The model used is based on the assumption that there exists an effective process that transfers the energy that is available in the relative motion to the electrons. Some necessary conditions to obtain significant heating or deceleration of the plasma penetrating the cloud are calculated. The conditions are mainly given by the energy available in the relative motion and the rates of the different binary collision processes involved. As the released gas cloud expands, the possibilities for a critical velocity interaction will exist only within a certain range of cloud radii. It is shown that the charge transfer collision cross section between the ionospheric ions and the cloud atoms is an important parameter and that xenon is a very suitable gas in that respect.

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