Effect of satellite potential on direct ion density measurements through the plasmapause

Autor: E. C. Whipple, J. M. Warnock, R. H. Winkler
Rok vydání: 1974
Předmět:
Zdroj: Journal of Geophysical Research. 79:179-186
ISSN: 0148-0227
DOI: 10.1029/ja079i001p00179
Popis: A simplified theory has been developed for calculating the effect of satellite potential on the ion current measured by an experiment such as an ion mass spectrometer or an ion trap. The theory is based on the use of a spherically symmetric Debye potential distribution in the sheath around the satellite and is particularly appropriate for use in regions where the Debye length is large, such as in the plasmasphere and magnetosphere. Ion data obtained from the ion trap on the Ogo 3 satellite during a pass through the plasmasphere show excellent agreement with the theory. The inferred ion densities from this analysis are as much as 1 order of magnitude different from what would be inferred from previous analyses.
Databáze: OpenAIRE