Drifting plasma collection by a positive biased tether wire in LEO-like plasma conditions: current measurement and plasma diagnostic

Siguier, Jean-Michel and Sarrailh, Pierre and Roussel, Jean-François and Inguimbert, Virgine and Murat, Gaël and Sanmartín Losada, Juan Ramón (2013). Drifting plasma collection by a positive biased tether wire in LEO-like plasma conditions: current measurement and plasma diagnostic. "IEEE Transactions on Plasma Science", v. 41 (n. 12); pp. 3380-3386. ISSN 0093-3813. https://doi.org/10.1108/TPS.2013.2257871.

Description

Title: Drifting plasma collection by a positive biased tether wire in LEO-like plasma conditions: current measurement and plasma diagnostic
Author/s:
  • Siguier, Jean-Michel
  • Sarrailh, Pierre
  • Roussel, Jean-François
  • Inguimbert, Virgine
  • Murat, Gaël
  • Sanmartín Losada, Juan Ramón
Item Type: Article
Título de Revista/Publicación: IEEE Transactions on Plasma Science
Date: December 2013
Volume: 41
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

BETs is a three-year project financed by the Space Program of the European Commission, aimed at developing an efficient deorbit system that could be carried on board any future satellite launched into Low Earth Orbit (LEO). The operational system involves a conductive tape-tether left bare to establish anodic contact with the ambient plasma as a giant Langmuir probe. As a part of this project, we are carrying out both numerical and experimental approaches to estimate the collected current by the positive part of the tether. This paper deals with experimental measurements performed in the IONospheric Atmosphere Simulator (JONAS) plasma chamber of the Onera-Space Environment Department. The JONAS facility is a 9- m3 vacuum chamber equipped with a plasma source providing drifting plasma simulating LEO conditions in terms of density and temperature. A thin metallic cylinder, simulating the tether, is set inside the chamber and polarized up to 1000 V. The Earth's magnetic field is neutralized inside the chamber. In a first time, tether collected current versus tether polarization is measured for different plasma source energies and densities. In complement, several types of Langmuir probes are used at the same location to allow the extraction of both ion densities and electron parameters by computer modeling (classical Langmuir probe characteristics are not accurate enough in the present situation). These two measurements permit estimation of the discrepancies between the theoretical collection laws, orbital motion limited law in particular, and the experimental data in LEO-like conditions without magnetic fields. In a second time, the spatial variations and the time evolutions of the plasma properties around the tether are investigated. Spherical and emissive Langmuir probes are also used for a more extensive characterization of the plasma in space and time dependent analysis. Results show the ion depletion because of the wake effect and the accumulation of- ions upstream of the tether. In some regimes (at large positive potential), oscillations are observed on the tether collected current and on Langmuir probe collected current in specific sites.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7262972BETSUnspecifiedPropellantless deorbiting of space debris by bare electrodynamic tethers

More information

Item ID: 30305
DC Identifier: http://oa.upm.es/30305/
OAI Identifier: oai:oa.upm.es:30305
DOI: 10.1108/TPS.2013.2257871
Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6514066
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 26 Jun 2014 09:47
Last Modified: 03 Nov 2014 12:39
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