Probe diagnostics of laboratory and ionospheric rarefied plasma flows

Abstract

A procedure is developed and formulas are obtained for processing and analyzing output signals of neutral particle detectors (pressure probe) and current-voltage characteristics of a single cylindrical Lang muir probe, when high speed nonequilibrium rarefied plasma flows are diagnosed on board a spacecraft in the ionosphere and on a test bench. The results are supported by experimental data. The procedure is intended to evaluate values of a set of basic kinetic parameters of neutral and charged particles of partially ion ized rarefied gas flows.

Synergetic effect of the action of atomic oxygen and vacuum ultraviolet radiation on polymers in the Earth’S ionosphere

“…The parameters of neutral and charged particles were controlled with electric probes arranged on the transfer tables of traversing gears (with four degrees of freedom), microwave interferometers operating at fre quencies of 5.45 and 9.8 GHz, pressure probes, an MKh 7307 mass spectrometer, and a multielectrode analyzer probe [10,11].…”