Effect of Magnetic Field on Resonances of Surface Waves Propagating along a Cylindrical Plasma Column

1966 ◽  
Vol 37 (1) ◽  
pp. 290-294 ◽  
Author(s):  
Yasuo Akao ◽  
Yoshio Ida
Keyword(s):  
Magnetic Field ◽  
Surface Waves ◽  
Plasma Column ◽  
Cylindrical Plasma ◽  
Cylindrical Plasma Column

Radial distribution of the plasma potential in a cylindrical plasma column with a longitudinal magnetic field

2021 ◽  
Vol 87 (4) ◽  
Author(s):  
G. Liziakin ◽  
A. Oiler ◽  
A. Gavrikov ◽  
N. Antonov ◽  
V. Smirnov
Keyword(s):  
Magnetic Field ◽  
Electric Fields ◽  
Radial Distribution ◽  
Plasma Column ◽  
Radial Profile ◽  
Plasma Potential ◽  
Symmetric System ◽  
Axially Symmetric ◽  
Cylindrical Plasma ◽  
Cylindrical Plasma Column

The possibility of controlling the electrostatic field distribution in plasma has yielded wide prospects for modern technologies. As a magnetic field primarily allows for creating electric fields in plasma, it serves as an additional obstacle for the current flow through a medium. In the present paper, an axially symmetric system is considered in which the magnetic field is directed along the axis and concentric electrodes are located at the ends. The electrodes are negatively biased. A model which solves the problem of the radial distribution of the plasma potential inside the cylindrical plasma column supported by the end electrodes is proposed. The most commonly encountered configurations of the electrical connection for the end electrodes are considered, and the particular solutions to the problem of the radial distribution are presented. The contribution of ions and electrons to the transverse conductivity is evaluated in detail. The influence of a thermionic element on the radial profile of the plasma potential is considered. To verify the proposed model, an experimental study of the reflex discharge is carried out with both cold electrodes and a thermionic element on the axis. A comparison of the computational model results with experimental data is given. The presented model makes it possible to solve the problem concerning the plasma potential distribution in the case of an arbitrary number of end electrodes, and also to take into account the inhomogeneity of the distribution of plasma density, neutral gas pressure and electron temperature along the radius.

The effect of a steady azimuthal field on rotating magnetic field current drive

1987 ◽  
Vol 37 (3) ◽  
pp. 423-433 ◽  
Author(s):  
W. K. Bertram
Keyword(s):  
Magnetic Field ◽  
Plasma Column ◽  
Substantial Reduction ◽  
Current Drive ◽  
Rotating Magnetic Field ◽  
Azimuthal Magnetic Field ◽  
Low Resistivity ◽  
Cylindrical Plasma ◽  
Resistive Plasma ◽  
Cylindrical Plasma Column

The method of generating steady azimuthal currents in a cylindrical plasma column by means of a rotating magnetic field is investigated numerically and analytically for the case where an external steady azimuthal magnetic field is applied to the plasma. For a plasma of low resistivity, the effect of imposing a strong azimuthal field is a substantial reduction in the amount of current that can be driven. For a resistive plasma the effect is more complicated. In some cases the azimuthal field enhances current drive as has been observed in recent experiments.

Near-Field Pattern Images of a Cylindrical Plasma Column

2011 ◽  
Vol 39 (11) ◽  
pp. 2552-2553 ◽  
Author(s):  
Nataliya K. Sakhnenko ◽  
Nadiya P. Stogniy ◽  
Alexander G. Nerukh
Keyword(s):  
Plasma Column ◽  
Near Field ◽  
Field Pattern ◽  
Cylindrical Plasma ◽  
Cylindrical Plasma Column

Anomalous skin effect for a plasma column in a magnetic field

1973 ◽  
Vol 10 (3) ◽  
pp. 349-358 ◽  
Author(s):  
R. G. Storer ◽  
C. Meaney
Keyword(s):  
Magnetic Field ◽  
Plasma Column ◽  
Electron Density Distribution ◽  
Skin Effect ◽  
Axial Magnetic Field ◽  
Complete Solution ◽  
Low Frequency ◽  
Anomalous Skin Effect ◽  
Plasma Radius ◽  
Cylindrical Plasma Column

The influence of a steady axial magnetic field on the anomalous penetration of low frequency electromagnetic fields into a cylindrical plasma column is investigated by considering a plasma with a Gaussian electron density distribution. For this model, a complete solution is obtained for Boltzmann's equation coupled to Maxwell's equations, and the fields calculated exactly. The results show dramatic changes of the internal fields for small changes of the applied magnetic field when the average Lamour radius of the electrons is of the order of the plasma radius.

scholarly journals Effects of boundary conditions and flow on the kink instability in a cylindrical plasma column

2007 ◽  
Vol 14 (2) ◽  
pp. 022103 ◽  
Author(s):  
I. Furno ◽  
T. P. Intrator ◽  
G. Lapenta ◽  
L. Dorf ◽  
S. Abbate ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Plasma Column ◽  
Cylindrical Plasma ◽  
Kink Instability ◽  
Cylindrical Plasma Column
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