scholarly journals Characteristics of Plasma Dynamics in Current Sheets Formed in Helium Plasma

Universe ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 400
Author(s):  
Anna G. Frank ◽  
Natalya P. Kyrie ◽  
Sergey N. Satunin ◽  
Sergey A. Savinov
Keyword(s):  
Helium Plasma ◽  
Plasma Acceleration ◽  
Helium Ions ◽  
Plasma Flows ◽  
Plasma Dynamics ◽  
Current Sheets ◽  
Characteristic Features ◽  
Electrodynamic Forces

The characteristic features of plasma acceleration in the current sheets are discussed on the basis of an analysis of the structure of electrodynamic forces at successive stages of the evolution of the current sheets formed in the plasma with helium ions. Of particular interest is the generation of reverse currents at the side edges of the sheet and the appearance of forces, which are braking previously accelerated plasma flows.

Generation of superthermal plasma flows in current sheets

JETP Letters ◽  
2012 ◽  
Vol 95 (1) ◽  
pp. 14-19 ◽  
Author(s):  
N. P. Kyrie ◽  
V. S. Markov ◽  
A. G. Frank
Keyword(s):  
Plasma Flows ◽  
Current Sheets ◽  
Superthermal Plasma

Re-ionization of a partially ionized plasma by an Alfvén wave of moderate amplitude

1980 ◽  
Vol 24 (1) ◽  
pp. 65-74
Author(s):  
M. H. Brennan ◽  
M. L. Sawley
Keyword(s):  
Plasma Temperature ◽  
Torsional Wave ◽  
Alfven Wave ◽  
Helium Plasma ◽  
Acoustic Oscillations ◽  
Radial Density ◽  
Helium Ions ◽  
Wave Pulse ◽  
Partially Ionized ◽  
Doubly Charged

This paper reports on the use of forced magneto-acoustic oscillations to investigate the effect of a torsional hydromagnetic (Alfvén) wave pulse of moderate amplitude on the properties of a partially ionized afterglow helium plasma. Observations of the magnetic flux associated with the oscillations, measured at a number of frequencies, are used to determine radial density proffles and to provide estimates of plasma temperature. The torsional wave is shown to cause significant re-ionization of the plasma with no corresponding increase in the plasma temperature. The torsional wave is shown to cause significant re-ionization of the plasma with no corresponding increase in the plasma temperature. However, the presence of a number of energetic particles is evidenced by the production of a significant number of doubly charged helium ions.

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