Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-29T14:21:49.192Z Has data issue: false hasContentIssue false
  • English
  • Français

The plasma wake of mesosonic conducting bodies. Part 1. An experimental parametric study of ion focusing by the plasma sheath

Published online by Cambridge University Press:  13 March 2009

Nobie H. Stone
Nobie H. Stone
Affiliation:
Space Sciences Laboratory, NASA Marshall Space Flight Center, Huntsville, Alabama 35812
Get access Rights & Permissions [Opens in a new window]

Extract

An experimental, parametric investigation has been made of the disturbed ion flow field immediately downstream from conducting bodies of spherical and long cylindrical geometries in a collisionless, mesosonic plasma stream. The ion-acoustic Mach number, S, and the normalized test body potential, Φb, were varied, while the test body radii were of the order of a Debye length for all cases. In addition to standard diagnostics, the ion flux intensity, energy and direction were measured with the recently developed differential ion flux probe. These vector measurements provide direct observations of ion streamlines deflected across the wake axis at an angle proportional to sin-1 (|Φb|½/S) and show that some deflected streamlines are bunched together to form converging ion beams which can exist in the near wakes of both test body configurations. The angle of inclination of the converging ion beams depends linerarly on Φb, while the position of their intercept on the wake axis varies with S|Φb|½. The vector flux measurements also provide direct observations of secondary ion trajectory deflexions in the mid-wake region. These features exhibit parametric dependences that are in good agreement with theoretical calculations that include the effects of the test body and space charge potentials.

Type
Articles
Information
Journal of Plasma Physics , Volume 25 , Issue 3 , June 1981 , pp. 351 - 371
Copyright
Copyright © Cambridge University Press 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Al'pert, Ya. L., Gurevich, A. V. & Pitaevskii, L. P. 1965 Space Physics With Artificial Satellites Consultants Bureau.Google Scholar
Astrelin, V. T., Bogashchenko, I. A., Buchel'nikova, N. A. & Eidelman, Yu. I. 1973 Soviet Phys. Tech. Phys. 17, 1369.Google Scholar
Bogashchenko, I. A., Gurevich, A. V., Salimov, R. A. & Eidelman, Yu. I. 1971 Soviet Phys. JETP 32, 841.Google Scholar
Bud'ko, N. I. 1970 Soviet Phys. JETP 30, 375.Google Scholar
Call, S. M. 1969 Plasma Laboratory Report No. 46, School of Engineering and Applied Science, Columbia University.Google Scholar
Clayden, W. A. 1963 Rarefied Gas Dyn. 2, 435.Google Scholar
Clayden, W. A. & Hurdle, C. V. 1966 Rarefied Gas Dyn. 2, 1717.Google Scholar
Davis, A. H. & Harris, I. 1961 Rarefied Gas Dyn. Sup. 1, 691.Google Scholar
Fournier, G. & Pigache, D. 1975 Phys. Fluids, 18, 1443.CrossRefGoogle Scholar
Gurevich, A. V., Pitaevskii, L. P. & Smirnova, V. V. 1969 Space Sci. Rev. 9, 805.CrossRefGoogle Scholar
Hall, D. F., Kemp, R. E. & Sellen, J. M. 1964 AIAA J. 2, 1032.CrossRefGoogle Scholar
Henderson, C. L. & Samir, U. 1967 Planet. Space Sci. 15, 1499.CrossRefGoogle Scholar
Hester, S. D. & Sonin, A. A. 1969 a Rarefied Gas Dym. 2, 1659.Google Scholar
Hester, S. D. & Sonin, A. A. 1969 b AIAA Paper No. 69–673, presented at AIAA Fluid and Plasma Dynamics Conference, San Francisco, California.Google Scholar
Hester, S. D. & Sonin, A. A. 1970 AIAA J. 8, 1090.CrossRefGoogle Scholar
Konemann, B. 1978 J. Plasma Phys. 20, 17.CrossRefGoogle Scholar
Liu, V. C. 1975 Prog. Aerospace Sci. 16, 273.CrossRefGoogle Scholar
Martin, A. R. 1974 Planet. Space Sci. 22, 121.CrossRefGoogle Scholar
Maslennikov, M. V. & Sigov, Yu. S. 1965 Soviet Phys. Doklady 9, 1063.Google Scholar
Maslennikov, M. V. & Sigov, Yu. S. 1967 Rarefied Gas Dyn. 2, 1657.Google Scholar
Maslennikov, M. V. & Sigov, Yu. S. 1969 Rarefied Gas Dyn. 2, 1671.Google Scholar
Maslennikov, M. V., Sigov, Yu. S. & Charkina, G. P. 1968 Cosmic Res. 6, 184.Google Scholar
Oran, W. A., Samir, U. & Stone, N. H. 1976 AIAA J. 14, 1141.CrossRefGoogle Scholar
Skvortsov, V. V.& Nosachev, L. V. 1968 Cosmic Res. 6, 191.Google Scholar
Stone, N. H. 1977 Rev. Sci. Instr. 48, 1458.CrossRefGoogle Scholar
Stone, N. H. 1979 Ph.D. Dissertation, University of Alabama in Huntsville, May 1979.Google Scholar
Stone, N. H., Oran, W. A. & Samir, U. 1972 Planet. Space Sci. 20, 1787.CrossRefGoogle Scholar
Stone, N. H. & Rehmann, W. K. 1970 NASA Technical Note TN D–5894.Google Scholar
Stone, N. H., Samir, U. & Oran, W. A. 1974 J. Atmos. Terrest. Phys. 36, 253.CrossRefGoogle Scholar
Stone, N. H., Samir, U. & Wright, K. H. 1978 J. Geophys. Res. 83, 1668.CrossRefGoogle Scholar
Taylor, J. C. 1967 Planet. Space Sci. 15, 155, 463.CrossRefGoogle Scholar