Influence of the Collisions on the Dusty Plasma Sheath in the Presence of an Oblique Magnetic Field

Nafari, F.; Ghoranneviss, M.; Yasserian, Kiomars

doi:10.1007/s10894-015-9941-4

Cited by 4 publications

(1 citation statement)

References 17 publications

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“…It can be found in various technological devices, such as the device for plasma‐assisted material and plasma nanofabrication, plasma discharges, and plasma medicine, as well as controlled fusion devices . Most of the research articles discussed the effect of parameters that can modify the sheath characteristics in dusty plasmas, for example the action of an external magnetic field, the collisions force, the multi‐species of positive or/and negative ions, the two electron temperature, the dust charge variation, and the size of dust grains . In all of these investigations mentioned above, the electron distribution has been assumed to be Maxwellian (i.e., which is based on the Boltzmann‐Gibbs [BG] statistics).…”

Section: Introductionmentioning

confidence: 99%

Effects of non‐extensive electrons on the sheath of dusty plasmas with variable dust charge

Ghani

Driouch

Chatei

2019

Contributions to Plasma Physics

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In this study, a detailed investigation of the problem of sheath is presented using the fluid model in a magnetized three‐component dusty plasma system comprising positive ions, dust grains with variable charge and q‐non‐extensive electrons (i.e., the electrons evolve far away from their Maxwellian thermodynamic equilibrium [q = 1]). The effects of q‐non‐extensivity parameter on the plasma sheath parameters are studied numerically. A significant change is observed in the quantities characterizing the sheath with the presence of the super‐extensive electrons (q < 1) and sub‐extensive electrons (q > 1). In addition, based on the orbital motion limited theory, by taking various forces acting on the dust particle into consideration, the dynamics of the dust located within the sheath, that is, the dust grain charging inside the sheath, is examined under different values of q. It is found that the q‐non‐extensivity has affected significantly the dynamics and the charging process of the dust grains in the sheath.

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Section: Introductionmentioning

confidence: 99%

Effects of non‐extensive electrons on the sheath of dusty plasmas with variable dust charge

Ghani

Driouch

Chatei

2019

Contributions to Plasma Physics

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Numerical investigation of secondary electron emission effect on the dusty plasma sheath with superextensive electrons

2020

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We have investigated the structure of a magnetized sheath of dusty plasma in the presence of secondary electrons emitted by the micro-size dust particles in the context of the Tsallis statistics. The fluid model is used to analyze numerically the effects of the nonextensivity parameter q on the emission of secondary electrons and therefore, on the sheath structure as well as the dust dynamics. The results show that the secondary emission yield increases with the decrease of the parameter of nonextensivity q and consequently, the dust charge becomes less negative with its range of values playing a primordial role in the secondary electron emission rate. The quantities characterizing the sheath are significantly affected by the secondary electron emission (SEE) from the dust. It is seen that as the SEE rises at a given value of q(q<0.91), the sheath potential decreases as well as its absolute value at the wall. In addition, the dynamics of the dust particles is also affected by the emission of secondary electrons.

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Characteristics of Magnetized Dusty Plasma Sheath With Two Ion Species and q-Nonextensive Electrons

Basnet

Khanal

2021

IEEE Trans. Plasma Sci.

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Influence of the Collisions on the Dusty Plasma Sheath in the Presence of an Oblique Magnetic Field

Cited by 4 publications

References 17 publications

Effects of non‐extensive electrons on the sheath of dusty plasmas with variable dust charge

Effects of non‐extensive electrons on the sheath of dusty plasmas with variable dust charge

Numerical investigation of secondary electron emission effect on the dusty plasma sheath with superextensive electrons

Characteristics of Magnetized Dusty Plasma Sheath With Two Ion Species and q-Nonextensive Electrons

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