scholarly journals An assessment of the relative importance of body and plasma properties in determining the ion current distribution in the wake of an ionospheric satellite

1980 ◽  
Vol 42 (6) ◽  
pp. 533-543 ◽  
Author(s):  
Uri Samir ◽  
Yoram J Kaufman
Keyword(s):  
Current Distribution ◽  
Ion Current ◽  
Relative Importance ◽  
Plasma Properties

Ion density and current distributions in a propagating current sheet, determined by microwave reflection technique

1969 ◽  
Vol 3 (2) ◽  
pp. 189-213 ◽  
Author(s):  
W. R. Ellis ◽  
R. G. Jahn
Keyword(s):  
Axial Current ◽  
Ion Current ◽  
Large Radius ◽  
Relative Importance ◽  
Current Pattern ◽  
Ion Density ◽  
Density Distributions ◽  
Hall Parameter ◽  
Electron Density And Temperature ◽  
Microwave Reflection

Electron and ion density distributions and the problem of electron/ion current partitioning are studied in a large radius Z-pinch in argon. Radial scans of the electron density and temperature proffles in the propagating sheet are obtained with a multi-purpose microwave interferometer which measures the complex refiexion coefficient from the plasma. At 70 GHz the probe resolves densities up to 1017 cm−3 over dimensions of ˜ 4 mm. Proffles of the electric and magnetic field components are obtained using standard probe techniques, and these data are used to calculate ion and electron current components in the sheet.Within the approximations of MHD theory, calculations show that the overall axial current pattern is built up of four interior zones alternately dominated by electron or ion current. This structure is observed to be closely correlated with variations of the Hall parameter, Wb/vc, about the value of unity through the sheet, which suggests that this parameter might be used as a guide to the relative importance of ion conduction in pinch discharge current sheets.

Ion current distribution in a filtered vacuum arc deposition system

1995 ◽  
Vol 76-77 ◽  
pp. 190-196 ◽  
Author(s):  
V.N. Zhitomirsky ◽  
L. Kaplan ◽  
R.L. Boxman ◽  
S. Goldsmith
Keyword(s):  
Current Distribution ◽  
Ion Current ◽  
Vacuum Arc ◽  
Vacuum Arc Deposition ◽  
Arc Deposition
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