Laser determination of anisotropic plasma electron density profiles

AIAA Journal ◽  
1985 ◽  
Vol 23 (7) ◽  
pp. 1125-1127
Author(s):  
Richard C. Warder
Keyword(s):  
Electron Density ◽  
Plasma Electron ◽  
Anisotropic Plasma ◽  
Density Profiles ◽  
Electron Density Profiles ◽  
Plasma Electron Density

scholarly journals Bestimmung des Elektronendichteprofils in Plasmen mit Hilfe von Hohlraumresonatoren / Determination of Plasma Electron Density Profiles by Means of Resonant Cavities

1969 ◽  
Vol 24 (10) ◽  
pp. 1496-1501
Author(s):  
G. Janzen
Keyword(s):  
Electron Density ◽  
Cavity Mode ◽  
Plasma Electron ◽  
Electron Density Profile ◽  
Density Profiles ◽  
Resonant Cavities ◽  
Microwave Cavities ◽  
Electron Density Profiles ◽  
Plasma Electron Density

Abstract The shift of the resonant frequency of microwave cavities excited in TM0m0 (m=1, 2, 3), TMl10 (l=1, 2), TE01n (n>0 integer) modes under the influence of a plasma is calculated for arbitrary radii of plasma and cavity for Bessel profile and common parabolic profiles.In measuring the frequency shift for two of the cited cavity mode types an approximate electron density profile can be determined from the submitted diagrams.

Der Einfluß des Entladungsgefäßes auf die Bestimmung der Plasmaelektronendichte mit Hohlraumresonatoren / The Influence of the Discharge Tube on the Determination of the Plasma Electron Density by Means of Cavity Resonators

1972 ◽  
Vol 27 (3) ◽  
pp. 491-499 ◽  
Author(s):  
G Janzen
Keyword(s):  
Electron Density ◽  
Discharge Tube ◽  
Plasma Electron ◽  
Microwave Cavity ◽  
Linear Perturbation ◽  
Density Profiles ◽  
Cavity Resonators ◽  
Resonance Modes ◽  
Linear Perturbation Theory ◽  
Electron Density Profiles

AbstractThe eigenvalue equation of a plasma-discharge tube configuration in a cylindrical microwave cavity is derived and solved numerically by an exact theory for TMlm0 , TM0mn, and TE0mn resonance modes. The radial and axial electron density profiles are assumed to be homogeneous. The factors of proportionality between electron density and shift of the resonance frequency derived from the linear perturbation theory are compared with the exactly computed eigenvalues. Hence the range of validity of the linearly computed factors of proportionality (geometry factors) can be established. By considering the influence of the discharge tube the geometry factors are altered and consequently the sensitivity of the measurement. The influence of the discharge tube can be taken into account by means of suitable correction factors.

A direct method for determination of membrane electron density profiles on an absolute scale

Nature ◽  
1978 ◽  
Vol 276 (5687) ◽  
pp. 530-532 ◽  
Author(s):  
N. P. FRANKS ◽  
T. ARUNACHALAM ◽  
E. CASPI
Keyword(s):  
Electron Density ◽  
Direct Method ◽  
Density Profiles ◽  
Absolute Scale ◽  
Electron Density Profiles ◽  
A Direct Method

A study of two microwave interferometers for the determination of the plasma electron density

1979 ◽  
Vol 12 (3) ◽  
pp. 417-423
Author(s):  
J L Sebastian ◽  
V Colomer ◽  
M Rodriguez-Vidal ◽  
J Peon
Keyword(s):  
Electron Density ◽  
Plasma Electron ◽  
Plasma Electron Density
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