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Electron cyclotron echoes from plasma

Published online by Cambridge University Press:  13 March 2009

R. L. Bruce
R. L. Bruce
Affiliation:
Institute for Plasma Research, Stanford University
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Abstract

The observed response of a low-density magnetoplasma column to a pair of RF pulses near the cyclotron frequency is a series of pulses known as two-pulse echoes. A similar three-pulse echo train may be obtained by applying a third pulse. This behaviour involves some type of non-linearity, and for a low-density plasma the most promising mechanism appears to be velocity-dependent electron-neutral collisions. This gives velocity-dependent decay to induced currents, and velocity-dependent diffusion. The latter may be important in three-pulse echo formation. In this paper computations from these theories are compared with experimental data with these findings: (1) diffusion is not primarily responsible for three-pulse echoes; (2) the predictions of the collisional current decay theory are in reasonable agreement with the experimental results.

Information

Type
Research Article
Information
Journal of Plasma Physics , Volume 5 , Issue 3 , June 1971 , pp. 385 - 411
Copyright
Copyright © Cambridge University Press 1971

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References

REFERENCES

Bader, L. O., Blum, F. A. & Gould, R. W. 1968 Phys. Rev. Letters 20, 435.Google Scholar
Bekefi, G. 1966 Radiation Processes in Plasmas. New York: Wiley.Google Scholar
Bracewell, R. N. 1965 The Fourier Transform and Its Application. New York: McGraw-Hill.Google Scholar
Bruce, R. L., Crawford, F. W. & Harp, R. S. 1968 a J. Appl. Phys. 39, 2088.CrossRefGoogle Scholar
Bruce, R. L., Crawford, F. W. & Harp, R. S. 1968 b J. Appl. Phys. 39, 3349.CrossRefGoogle Scholar
Crawford, F. W. & Harp, R. S. 1966 a Phys. Rev. Letters 21, 292.CrossRefGoogle Scholar
Crawford, F. W. & Harp, R. S. 1966 b J. Appl. Phys. 37, 4405.CrossRefGoogle Scholar
Crawford, F. W., Harp, R. S. & Ikegami, H. 1966 Proc. 6th Int. Conf. on Microwave and Optical Generation and Amplification, Cambridge, England. Conf. Publ. 27. p. 507. London: I.E.E.Google Scholar
Frost, L. S. & Phelps, A.V. 1964 Phys. Rev. A 136, 1538.CrossRefGoogle Scholar
Gould, R. W. 1965 a Phys. Letters 19, 477.CrossRefGoogle Scholar
Gould, R. W. 1965 b CALTEC, Rept. 28.Google Scholar
Gould, R. W. & Blum, F. A. 1967 Proc. 8th Int. Conf. on Phenomena in Ionized Gases, Vienna (p. 405). Springer.Google Scholar
Harp, R. S. & Moser, R. M. 1967 Rev. Sci. Instr. 38, 1795.CrossRefGoogle Scholar
Harp, R. S. & Smith, R. R. 1969 Bull. Am. Phys. Soc. 14, 1008.Google Scholar
Harp, R. S., Bruce, R. L. & Crawford, F. W. 1967 J. Appl. Phys. 38, 3385.CrossRefGoogle Scholar
Herrmann, G. F. & Whither, R. F. 1966 Phys. Rev. 143, 122.CrossRefGoogle Scholar
herrmamn, G. F., Hill, R. M. & kaplan, D. E. 1967 Phys. Rev. 156, 118.CrossRefGoogle Scholar
Hill, R. M. & Kaplan, D. E. 1965 Phys. Rev. Letters 14, 1062.CrossRefGoogle Scholar
Kaplan, D. E., Hill, R. M. & Wong, A. Y. 1966 Phys. Letters 22, 585.CrossRefGoogle Scholar
Kegal, W. H. 1967 Plasma Phys. 9, 23.CrossRefGoogle Scholar
Kegal, W. H. & Gould, R. W. 1965 Phys. Letters 19, 531.CrossRefGoogle Scholar
Smith, T. B. 1967 MIT, Research Laboratory of Electronics, Tech. Rep. 458.Google Scholar
Spitzer, L. 1962 Physics of Fully-Ionized Gases, 2nd edn.Interscienco.Google Scholar
Wono, A. Y. & Judd, G. 1967 Proc. Conf. on Physics of Quiescent Plasmas, Frascati, Rome, p. 317.Google Scholar