Method to penetrate through the overdense plasma sheath: Mode conversion in nonuniform plasmas with two-temperature electron population

2020 ◽  
Vol 27 (10) ◽  
pp. 103508
Author(s):  
Jiahui Zhang
Keyword(s):  
Mode Conversion ◽  
Plasma Sheath ◽  
Electron Population ◽  
Temperature Electron ◽  
Overdense Plasma ◽  
Two Temperature

Large-amplitude ion-acoustic double layers in a plasma with warm ions

1990 ◽  
Vol 68 (2) ◽  
pp. 222-226 ◽  
Author(s):  
R. K. Roychoudhury ◽  
Sikha Bhattacharyya ◽  
Y. P. Varshni
Keyword(s):  
Potential Method ◽  
Double Layers ◽  
Ion Temperature ◽  
Sagdeev Potential ◽  
Electron Population ◽  
Numerical Studies ◽  
Ion Acoustic ◽  
Temperature Electron ◽  
Ion Acoustic Double Layers ◽  
Two Temperature

The conditions for the existence of an ion-acoustic double layer in a plasma with warm ions and two distinct groups of hot electrons have been studied using the Sagdeev potential method. A comparison is made with the published results of Bharuthram and Shukla for cold ions and a two-temperature electron population. Numerical studies have been made to find out the effect of a finite ion temperature on the Mach number of the double layers.

scholarly journals Modified Korteweg–de Vries solitons at supercritical densities in two-electron temperature plasmas

2016 ◽  
Vol 82 (2) ◽  
Author(s):  
Frank Verheest ◽  
Carel P. Olivier ◽  
Willy A. Hereman
Keyword(s):  
Soliton Solutions ◽  
Detailed Comparison ◽  
Mkdv Equation ◽  
Perturbation Approach ◽  
Electron Population ◽  
Positive Ions ◽  
Reductive Perturbation ◽  
De Vries ◽  
Temperature Electron ◽  
Two Temperature

The supercritical composition of a plasma model with cold positive ions in the presence of a two-temperature electron population is investigated, initially by a reductive perturbation approach, under the combined requirements that there be neither quadratic nor cubic nonlinearities in the evolution equation. This leads to a unique choice for the set of compositional parameters and a modified Korteweg–de Vries equation (mKdV) with a quartic nonlinear term. The conclusions about its one-soliton solution and integrability will also be valid for more complicated plasma compositions. Only three polynomial conservation laws can be obtained. The mKdV equation with quartic nonlinearity is not completely integrable, thus precluding the existence of multi-soliton solutions. Next, the full Sagdeev pseudopotential method has been applied and this allows for a detailed comparison with the reductive perturbation results. This comparison shows that the mKdV solitons have slightly larger amplitudes and widths than those obtained from the more complete Sagdeev solution and that only slightly superacoustic mKdV solitons have acceptable amplitudes and widths, in the light of the full solutions.

scholarly journals Electric Field at a Plasma-Facing Wall for a Two-Temperature Electron Distribution

2012 ◽  
Vol 52 (5-6) ◽  
pp. 484-489 ◽  
Author(s):  
Y. Tomita ◽  
G. Kawamura ◽  
M. Ueno ◽  
N. Ohno ◽  
Z.H. Huang ◽  
...  
Keyword(s):  
Electric Field ◽  
Electron Distribution ◽  
Temperature Electron ◽  
Two Temperature

Feasibility study of O–X coupling for overdense plasma heating through O–X–B mode conversion in FTU

2013 ◽  
Vol 53 (8) ◽  
pp. 083020 ◽  
Author(s):  
W. Bin ◽  
A. Bruschi ◽  
O. D'Arcangelo ◽  
C. Galperti ◽  
G. Granucci ◽  
...  
Keyword(s):  
Feasibility Study ◽  
Mode Conversion ◽  
Plasma Heating ◽  
Overdense Plasma

Effect of two-temperature electron distribution on the Bohm sheath criterion

1997 ◽  
Vol 55 (1) ◽  
pp. 1213-1216 ◽  
Author(s):  
S. B. Song ◽  
C. S. Chang ◽  
Duk-In Choi
Keyword(s):  
Electron Distribution ◽  
Temperature Electron ◽  
Two Temperature
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