2020-01-23T11:22:01Z
http://oa.upm.es/cgi/oai2
oai:oa.upm.es:21652
2016-04-21T12:22:07Z
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Cylindrical Langmuir probes beyond the orbital-motion-limited regime
Estes, Robert D.
Sanmartín Losada, Juan Ramón
Physics
Aeronautics
The current I to a cylindrical probe at rest in an unmagnetized plasma, with probe bias highly positive, is determined. The way I lags behind the orbital-motion-limited OMLcurrent, 1 OML R, as the radius R exceeds the maximum radius for the OML regime to hold, is of interest for space-tether applications. The ratio I/I OML is roughly a decreasing function of R/lD R max /lDe , which is independent of bias, with lDe the electron Debye length and Rmax /l De roughly an increasing function of the temperature ratio, Ti /Te. The dependence of current on ion energy is used to discuss the effect of probe motion through the plasma, a case applying to tethers in low orbit.
E.T.S.I. Aeronáuticos (UPM)
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
2000
info:eu-repo/semantics/article
Article
Physics of plasma, ISSN 1070-664X, 2000, Vol. 7, No. 10
PeerReviewed
application/pdf
eng
info:eu-repo/semantics/openAccess
http://oa.upm.es/21652/