The characteristic of dust in a magnetic plasma sheath

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

“…Because of the similarity between our model and some correlative works, the equations are the same as basic equations for dusts and ions in plasma sheath reported in the refs. . The system of equations is completed by the Poisson's equation that relates the electric potential to the electron, ion, and dust grain densities, as follows: …”

“…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).…”

Fluid Simulation of the Ion Temperature Effects on a Collisional Magnetized Sheath of a Dusty Plasma

“…Two important factors which affect the structure of the dust plasma sheath are the external magnetic field and the collision force. Only few recent studies have considered the external magnetic field (Liu et al 2004;Xiu et al 2006). studied the characteristics of dust in a magnetized plasma sheath, assuming that the electrons are in thermal equilibrium and their density is given by the Boltzmann relation, while the ions and dust grains are considered as a cold fluid.…”

“…In these studies the collisions of dust with neutrals in the sheath region can have significant effect. Masoudi et al (2009), based on a previous work (Liu et al 2004), investigated the problem by including the effects of collisions in a sheath dominated by dust-neutral collisions, but they do not include the pressure gradient of the ion in their model. The effect of ion temperature on the plasma sheath structure has been investigated without dust (Minghao et al 2006;El Kaouini et al 2010;Khoramabadi et al 2011).…”

“…In the present study, the main goal is to examine the modification created by the presence of the thermal ions on the characteristics of dusty sheath of collisional magnetized plasma where the dust-neutral collision frequency depend to dust flow velocity. Based on some earlier studies (Liu et al 2004;Masoudi et al 2009), the fluid model is used for a dusty plasma sheath. We simultaneously consider the effects of the electrostatic, gravitational, Lorentz and the collision forces on dust characteristics, by taking into consideration the effect of the ion temperature.…”