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Determination of plasma density and temperature profiles using magneto-acoustic oscillations

Published online by Cambridge University Press:  13 March 2009

M. H. Brennan
Affiliation:
School of Physical Sciences, The Flinders University of South Australia, Bedford Park, S.A. 5042, Australia
B. L. Jessup
Affiliation:
School of Physical Sciences, The Flinders University of South Australia, Bedford Park, S.A. 5042, Australia
I. R. Jones
Affiliation:
School of Physical Sciences, The Flinders University of South Australia, Bedford Park, S.A. 5042, Australia

Abstract

This paper reports on theoretical and experimental refinements in the use of forced radial magneto-acoustic oscillations of a magnetized plasma as a diagnostic technique. The theory of such oscillations is extended to include radial variations in electron number density, neutral atom density and plasma temperature. In experiments carried out in an argon afterglow plasma, observations of the radial variation of the oscillation amplitude, and of the total flux in the plasma, are combined with theory to yield radial density and temperature profiles. These profiles are in good agreement with independent measurements made using laser interferometry and spectroscopic techniques.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1977

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References

REFERENCES

Cantieni, E. & Schneider, H. 1963 Helv. Phys. Acta, 36, 993.Google Scholar
Forman, P. R. & Kunkel, W. B. 1968 Phys. Fluids, 7, 1528.CrossRefGoogle Scholar
Frommelt, J. J. B. & Jones, I. R. 1975 J. Plasma Phys. 14, 373.CrossRefGoogle Scholar
Lindberg, L. & Danielsson, L. 1963 Phys. Fluids, 6, 736.CrossRefGoogle Scholar
Müller, G., Räuchle, E. & Schüller, P. G. 1973 Plasma Phys. 15, 925.CrossRefGoogle Scholar
Rapp, D. & Francis, W. E. 1962 J. Chem. Phys. 37, 2631.CrossRefGoogle Scholar
Vaucher, B. G., Vaclavik, J. & Schneider, H. 1975 Helv. Phys. Aeta, 48, 699.Google Scholar