Magnetized plasma sheath with two species of positive ions

2008 ◽  
Vol 15 (5) ◽  
pp. 053508 ◽  
Author(s):  
M. M. Hatami ◽  
A. R. Niknam ◽  
B. Shokri ◽  
H. Ghomi
Keyword(s):  
Plasma Sheath ◽  
Magnetized Plasma ◽  
Positive Ions

scholarly journals Tungsten and Molybdenum Surfaces Exposed to Warm Deuterium Ion Plasma with Q-Nonextensive Distribution of Electrons

2020 ◽  
Vol 6 (1) ◽  
pp. 50-58
Author(s):  
S. Basnet ◽  
R. Khanal
Keyword(s):  
Magnetic Field ◽  
Impact Energy ◽  
Target Surface ◽  
Plasma Sheath ◽  
Magnetized Plasma ◽  
Sheath Region ◽  
Two Fluids ◽  
Positive Ions ◽  
Nonextensive Distribution ◽  
The Impact

 This work is concerned with the effect of non-Maxwellian electrons and obliqueness of magnetic field on magnetized plasma sheath characteristics, in which plasma interacts with tungsten (W) and molybdenum (Mo) surfaces via non-neutral plasma sheath using two fluids model. It is assumed that the singly charged positive ions are treated as warm fluid whereas the electrons obey q-nonextensive distribution. It is found that the q-nonextensive distributed electrons and the temperature of ions affect the entrance velocity of positive ions, which is a key parameter in the plasma sheath formation. Also, the nonextensive parameter q affects the distribution of ions and electrons in the sheath region and their distributions explicitly related with the electrostatic potential variation. The parallel and perpendicular components of ions velocity are affected by the obliqueness of magnetic field. As the nonextensivity of electrons increases, the gradient in electric potential increases towards the wall and hence the impact energy also increases. The obliqueness of magnetic field and impact energy of ions is a key factor that determines the physical sputtering rate, particle reflection and absorption from the target surface. Furthermore, the probability of particle reflection coefficient from the W-surface is higher than that of Mo-surface.

Characteristics of ions in a magnetized plasma sheath with two species of positive ions

Vacuum ◽  
2009 ◽  
Vol 83 ◽  
pp. S231-S234 ◽  
Author(s):  
M.M. Hatami ◽  
A.R. Niknam ◽  
B. Shokri
Keyword(s):  
Plasma Sheath ◽  
Magnetized Plasma ◽  
Positive Ions

The ion density distribution in a magnetized plasma sheath

Vacuum ◽  
2008 ◽  
Vol 83 (1) ◽  
pp. 205-208 ◽  
Author(s):  
Xiu Zou ◽  
Minghui Qiu ◽  
Huiping Liu ◽  
Lijie Zhang ◽  
Jinyuan Liu ◽  
...  
Keyword(s):  
Density Distribution ◽  
Plasma Sheath ◽  
Magnetized Plasma ◽  
Ion Density

Plasma Sheath of Satellites Moving in Magnetized Plasma of Low Earth Orbit

2000 ◽  
Vol 43 (4) ◽  
pp. 491-495 ◽  
Author(s):  
Jin-Bin CAO ◽  
Xue-Yi WANG ◽  
Guo-Cheng ZHOU ◽  
Tao CHEN
Keyword(s):  
Low Earth Orbit ◽  
Plasma Sheath ◽  
Magnetized Plasma ◽  
Earth Orbit
Sign in / Sign up

Export Citation Format

Share Document