SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA

Li Fang; O. Havnes

Volume 21 Issue 5

Sep. 1999

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Li Fang, O. Havnes. SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA[J]. Journal of Electronics & Information Technology, 1999, 21(5): 679-685.

Citation:

Li Fang, O. Havnes. SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA[J]. Journal of Electronics & Information Technology, 1999, 21(5): 679-685.

Li Fang, O. Havnes. SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA[J]. Journal of Electronics & Information Technology, 1999, 21(5): 679-685.

Citation:

Li Fang, O. Havnes. SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA[J]. Journal of Electronics & Information Technology, 1999, 21(5): 679-685.

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SCATTER SPECTRUM OF RADIO WAVES BY A DUSTY PLASMA

Li Fang^①;O.Havnes,
O. Havnes

Received Date: 1997-06-11
Rev Recd Date: 1998-12-16
Publish Date: 1999-09-19

Abstract

Abstract

The scatter spectrum of radio waves by a dusty plasma has been studed with the dynamic factor which was derived from the kinetic theory. It is found that for the case of cooled electrons kD1 (D is the Debye length, and k=|k|=|ks-k0|, k0 and ks is the incident and scatter wave vector, respectivly) the dusty paticles play an important role in the scattering due to its huge charge number. There is a characteristic spiky fine structure in the scatter spectrum, which is of the dust-acoustic wave frequency shift.

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References(1)

References

Shukla P K, Mendis D A, Desai T. Advances in Dusty Plasma, Singapore: World Scientific, 1997, Chap.I-III.[2]Havnes O, Melandso F, Hartquist T, Alaksen T. Charge dust on the Earths mesopause: Effects on radar backscatter, Physica Scripta, 1992, 45(5): 535-544.[3]Fejer J. Scattering of radiowaves by an ionozed gas in the thermal equilibrium, Can. J. Phys., 1960, 38: 1114-1133.[4]Li F, Tsytovich V N. Dynamic spectral density function of a dusty plasma, Phys. Rev. E, 1996, 53(2): 1028-1034.[5]Rottger J, La Hoz C J. Characteristics of polar mesosphere summer echoes (PMSE) observed with the EISCAT 224MHz radar and possible explanations of their origin, J. Atm. Terr. Phys. 1990, 52(10/11): 893-898.

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