Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-27T20:47:40.247Z Has data issue: false hasContentIssue false
  • English
  • Français

Radio frequency properties of a plane grid capacitor immersed in a hot collision-free plasma

Published online by Cambridge University Press:  13 March 2009

R. Buckley
R. Buckley
Affiliation:
Radio and Space Research Station, Slough, Bucks.
Get access Rights & Permissions [Opens in a new window]

Abstract

A pair of plane parallel grids is inserted in a hot plasma, and an oscillatory voltage is applied across them. The electric field excited in the plasma, and the complex admittance of the grid/plasma system, are computed for applied frequencies high enough to justify neglect of ion response. The grids are electrically, but not mechanically, coupled to the plasma, which is assumed to be in a spatially uniform collision free Maxwellian equilibrium state. The field is computed as a function of distance from the grid plates over a range of frequencies covering the plasma frequency, and the complex admittance of the system is computed as a function of frequency at various grid separation distances. The real component of the field and the capacitive component of the admittance are subject to three major effects: cold plasma dielectric behaviour, oscillatory Debye sheaths on the grids, and (above the plasma frequency), longitudinal plasma waves. The imaginary field component and the conductive admittance component are produced by spatial Landau damping. In an accompanying paper (Freeston 1968), the computed admittance is compared with laboratory measurements made in a situation approximating well to the idealized problem considered here.

Type
Research Article
Information
Journal of Plasma Physics , Volume 2 , Issue 3 , August 1968 , pp. 339 - 351
Copyright
Copyright © Cambridge University Press 1968

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

Aleksandrov, A. F. 1965 Sov. Phys. Tech. Phys. 10, 185.Google Scholar
Derfler, H. 1965 Proc. 7th Int. Conf. on Phenomena in Ionized Gases Belgrade, Vol. II, p. 282.Google Scholar
Derfler, H. & Simonen, T. C. 1966 Phys. Rev. Lett. 17, 172.CrossRefGoogle Scholar
Drummond, W. E. 1963 Rev. Sci. Instr. 34, 779.CrossRefGoogle Scholar
Freeston, I. L. 1968 J. Plasma Phys. 2, 329.CrossRefGoogle Scholar
Fried, B. D. & Conte, S. D. 1961 The Plasma Dispersion Function. New York: Academic Press.Google Scholar
Gould, R. W. 1964 Phys. Rev. 136 A, 991.CrossRefGoogle Scholar
Hall, R. B. 1963 Am. J. Phys. 31, 696.CrossRefGoogle Scholar
Landau, L. 1946 J. Phys. U.S.S.R. 10, 25.Google Scholar
Pavkovitch, J. M. 1963 Standford University Microwave Laboratory report no. 1093.Google Scholar
Shure, F. C. 1964 J. Nucl. Energy C, 6, 1.CrossRefGoogle Scholar
Van Hoven, G. 1966 Phys. Rev. Lett. 17, 169.CrossRefGoogle Scholar
Weissglas, P. 1962 J. Nucl. Energy C, 4, 329.CrossRefGoogle Scholar