Studies of strong laboratory double layers and comparison with computer simulation

Strong electrostatic double layers were produced with a triple plasma configuration in the large plasma chamber (5 m long, 2·5 m diameter) at IPM in Freiburg, Federal Republic of Germany. Owing to relatively low densities (1011 1012m−3), Debye lengths of a few centimetres and layer thicknesses of th...

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Published in:Journal of plasma physics 1981-08, Vol.26 (1), p.1-27
Main Authors: Baker, K. D., Singh, N., Block, L. P., Kist, R., Kampa, W., Thiemann, H.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c325t-77fd981bc755884bb1edfd0f2e4e8a502ff5a78808a3e6c4433190ff760350c03
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creator Baker, K. D.
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description Strong electrostatic double layers were produced with a triple plasma configuration in the large plasma chamber (5 m long, 2·5 m diameter) at IPM in Freiburg, Federal Republic of Germany. Owing to relatively low densities (1011 1012m−3), Debye lengths of a few centimetres and layer thicknesses of the order of a metre were obtained. Layers both with and without magnetic fields were studied. Analysis of particle spectra prove that wave-particle interactions play a minor role in maintaining the strong electric field. The three-dimensional potential distribution is measured and is qualitatively discussed in terms of particle budget. For cases with a magnetic field it tends to agree with observations above the aurora. Comparisons are made with double-layer theory and computer experiments, and general agreement is found as far as the available results allow.
doi_str_mv 10.1017/S0022377800010539
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title Studies of strong laboratory double layers and comparison with computer simulation
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