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Quasisteady-state electric fields of sources in a dilute plasma

 a,
a Institute of Microstructure Physics, Russian Academy of Sciences, ul. Ulyanova 46, Nizhnii Novgorod, 603600, Russian Federation

This article review the current state of the quasisteady-state theory of the high frequency electrical properties of sources (probe antennas) in a plasma in which one can neglect the collisions of the charged particles. We discuss the structure of the potential and of the electric field, the impedance and the noise; the effect on these characteristics of a d.c. magnetic field, of excitation of plasma oscillations, thermal and directional movement of particles (passage effects), of deposition of particles on the surface of sources, etc. When plasma oscillations are excited, we show that the electric field usually or generally does not decline with distance from the source, or declines considerably more slowly than in a vacuum. We demonstrate that the fundamental characteristics of ``large'' sources (of dimensions large in comparison with the spatial-dispersion parameter) can be determined in the ``cold'' plasma approximation, in which the equation for the potential is generally an equation of mixed type, while the solutions of physical interest are complex. For "small" sources, the principal effect studied is the passage of electrons in the inhomogeneous a.c. field of the source. Expressions are given for the impedance and noise of sources with account taken of passage effects. We note that finite particles should exert in a number of cases a substantial effect on the characteristics of ``small'' sources.

PACS: 52.40.F
DOI: 10.1070/PU1975v018n05ABEH001960
URL: https://ufn.ru/en/articles/1975/5/c/
Citation: Andronov A A, Chugunov Yu V "Quasisteady-state electric fields of sources in a dilute plasma" Sov. Phys. Usp. 18 343–360 (1975)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 Quasisteady-state electric fields of sources in a dilute plasma
A1 Andronov,A.A.
A1 Chugunov,Yu.V.
PB Physics-Uspekhi
PY 1975
FD 10 May, 1975
JF Physics-Uspekhi
JO Phys. Usp.
VO 18
IS 5
SP 343-360
DO 10.1070/PU1975v018n05ABEH001960
LK https://ufn.ru/en/articles/1975/5/c/

Оригинал: Андронов А А, Чугунов Ю В «Квазистационарные электрические поля источников в разреженной плазме» УФН 116 79–113 (1975); DOI: 10.3367/UFNr.0116.197505c.0079

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