Cylindrical Langmuir probes beyond the orbital-motion-limited regime

Estes, Robert D. and Sanmartín Losada, Juan Ramón (2000). Cylindrical Langmuir probes beyond the orbital-motion-limited regime. "Physics of plasma", v. 7 (n. 10); pp. 4320-4325. ISSN 1070-664X.

Description

Title: Cylindrical Langmuir probes beyond the orbital-motion-limited regime
Author/s:
  • Estes, Robert D.
  • Sanmartín Losada, Juan Ramón
Item Type: Article
Título de Revista/Publicación: Physics of plasma
Date: 2000
Volume: 7
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 21652
DC Identifier: http://oa.upm.es/21652/
OAI Identifier: oai:oa.upm.es:21652
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 20 Nov 2013 09:32
Last Modified: 21 Apr 2016 12:22
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