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Construction of electron distribution functions from laser scattering spectra

Published online by Cambridge University Press:  13 March 2009

J. H. Williamson
Affiliation:
U.K.A.E.A. Culham Laboratory, Abingdon, Berkshire
M. E. Clarke
Affiliation:
71 Knutsford Eoad, Alderley Edge, Cheshire

Extract

The Thomson scattering spectrum, for laser light scattered by a low density plasma, is determined by the Doppler shifts from the moving electrons. It is shown how the full three-dimensional distribution function may be constructed if spectra are observed in several directions. Calculations using a model loss-cone distribution show that four spectra are sufficient for a faithful reconstruction of f(v). Most of the complications that arise at relativistic electron velocities can be avoided by placing a diffraction grating in the scattered laser beam.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1971

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References

Bekefi, G. 1966 Radiation Processes in Plasmas. Wiley.Google Scholar
Bracewell, R. 1956 Aust. J. Phys. 9, 198.CrossRefGoogle Scholar
Brown, T. S. & Rose, D. J. 1966 J. Appl. Phys. 37, 2709.CrossRefGoogle Scholar
Evans, D. E. & Katzenstein, J. 1969 Rep. Prog. Phys. 32, 207.CrossRefGoogle Scholar
Fröberg, C.-E. 1965 Introduction to Numerical Analysis. Reading, Mass.: Addison-Wesley.Google Scholar
Peacock, N. J., Robinson, D. C., Forrest, M. J., Wilcock, P. D. & Sannikov, V. V. 1969 Nature, Lond. 224, 488.CrossRefGoogle Scholar
Pechacek, R. E. & Trivelpiece, A. W. 1967 Phys. Fluids 10, 1688.CrossRefGoogle Scholar