Electron energy distribution function, effective electron temperature, and dust charge in the temporal afterglow of a plasma

2016 ◽  
Vol 23 (5) ◽  
pp. 053704 ◽  
Author(s):  
I. B. Denysenko ◽  
H. Kersten ◽  
N. A. Azarenkov
Keyword(s):  
Distribution Function ◽  
Energy Distribution ◽  
Electron Temperature ◽  
Electron Energy ◽  
Electron Energy Distribution Function ◽  
Energy Distribution Function ◽  
Electron Energy Distribution ◽  
Effective Electron ◽  
Dust Charge ◽  
Effective Electron Temperature

The effects of electron energy distribution function on the plasma sheath structure in the presence of charged nanoparticles

2020 ◽  
Vol 86 (2) ◽  
Author(s):  
H. Khalilpour ◽  
G. Foroutan
Keyword(s):  
Distribution Function ◽  
Energy Distribution ◽  
Electron Energy ◽  
Electron Energy Distribution Function ◽  
Plasma Sheath ◽  
Maxwellian Distribution ◽  
Energy Distribution Function ◽  
Electron Energy Distribution ◽  
Dust Charge ◽  
Charged Nanoparticles

The effects of the electron energy distribution function (EEDF) on the structure of a dusty plasma sheath are investigated. Here, it is assumed that the electrons obey a Druyvesteyn-type distribution with a parameter $x$ controlling the shape of the EEDF. The Druyvesteyn-like distribution tends to a Maxwellian distribution as  $x$ varies from 2 to 1. Using the orbital motion limited theory, the incident electron current on the dust is evaluated for a given $x$ . The results of numerical simulations are compared with those of a Maxwellian distribution. It was found that the sheath dynamics depends strongly on the magnitude of $x$ . The sheath thickness increases monotonically with increasing $x$ . However, the absolute dust charge decreases and, as a result, the accelerating ion drag force is weakened and thus the dust number density is enhanced. For a plasma with a Druyvesteyn-like distribution, the Bohm speed is a function of $x$ and increases with increasing $x$ .

Electron Energy Distribution Function Measured by Electrostatic Probes at Divertor Plasma in JFT-2M Tokamak

2003 ◽  
Vol 42 (Part 1, No. 2A) ◽  
pp. 657-662 ◽  
Author(s):  
Kazuya Uehara ◽  
Akira Tsushima ◽  
Hiroshi Amemiya ◽  
Hisato Kawasima ◽  
Katsumichi Hoshino
Keyword(s):  
Distribution Function ◽  
Energy Distribution ◽  
Electron Energy ◽  
Electron Energy Distribution Function ◽  
Energy Distribution Function ◽  
Electron Energy Distribution
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