The ion density distribution in a magnetized plasma sheath

Xiu, Zou; Qiu, Minghui; Liu, Huiping; Zhang, Lijie; Liu, Jinyuan; Gong, Yubin

doi:10.1016/j.vacuum.2008.03.032

Cited by 24 publications

(16 citation statements)

References 13 publications

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“…weak component of magnetic field parallel to the wall), the density curves decrease smoothly at first, then drop, and do not have fluctuations. The result for magnetized plasma sheath with zero-ion temperature is the same as that of Zou [5] in the case that ions enter the sheath perpendicularly. The absence of fluctuations in the density distributions is due to the limitation of the intensity of the magnetic field parallel to the wall.…”

Section: Numerical Results and Discussionsupporting

confidence: 57%

“…This assumption enables us to compare our results with other correlative works like [5] and [21] in the special cases of magnetized plasma sheath without ion temperature. The plasma electron temperature is kept constant, T e = 1 eV and the remaining parameters are mentioned for etch numerical calculation.…”

Section: Numerical Results and Discussionmentioning

confidence: 63%

“…r o=ox ð Þx. Many authors adopt this assumption to make the simple model [5,19]. Taking the magnetic field of the form: B ¼ B cos hxþ sin hz ð Þand substituting the above dimensionless variables into the (1-4), we get the form of the basic equations as follows: …”

Section: Basic Sheath Equationsmentioning

confidence: 99%

“…It has been shown that the structure of a plasma sheath in an external magnetic field is different from non-magnetized plasma sheath and the characteristics of the sheath depend on the orientation and strength of the magnetic field [3,5].…”

Section: Introductionmentioning

confidence: 99%

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Combined Effect of Ion Temperature and Magnetic Field on Collisionless Sheath Structure

Kaouini

Chatei

2011

J Fusion Energ

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A steady state two-fluid model has been used to study the characteristics of the collisionless plasma sheath in the presence of an external magnetic field and by taking into account both the ion temperature and the ion drift velocity at the sheath edge. The number and momentum equations of ions, the Boltzmann distribution of electrons and Poisson equations are solved numerically. The dependence of the Bohm magnetized sheath criterion to ion temperature is examined. It is shown that the ion temperature has significant effects on the sheath characteristics such as ion velocity, charged particles densities and electric potential. In the specific orientations of the magnetic field, it is found that by increasing the ion temperature, the ions do not achieve energy and the kinetic energy of the ions in the depth direction reaches the specific value at bigger distance from the plasma-sheath boundary.

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Section: Numerical Results and Discussionsupporting

confidence: 57%

Section: Numerical Results and Discussionmentioning

confidence: 63%

Section: Basic Sheath Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combined Effect of Ion Temperature and Magnetic Field on Collisionless Sheath Structure

Kaouini

Chatei

2011

J Fusion Energ

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“…However, to avoid complex mathematical techniques, the fluid equations in the plasma sheath can be investigated by considering the Bohm criterion at the sheath boundary. Following some theoretical works used in this approach (e.g., [47][48][49][50][51][52]), we consider a magnetized plasma sheath having one-dimensional coordinate space and three-dimensional velocity space. Also, we consider a Cartesian coordinate where the z-direction is chosen as the depth direction (normal to the wall).…”

Section: Fluid Model and Basic Equationsmentioning

confidence: 99%

Magnetized plasma sheath with two positive ions where collision frequencies have a power law dependency on ions velocities

Masoudi

Khoramabadi

2015

J Theor Appl Phys

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We study the dynamics of collisional magnetized plasma sheath with two species of positive ions by using the plasma fluid model. The basic equations of the fluid model are solved numerically where the sheath is in the external magnetic field and the elastic collision between ions and neutrals has been taken into account. In our model, we assume that the collisional momentum transferring cross section has a power law dependency on ion flow velocity. Our analysis demonstrates that the sheath dynamics are sensitive to the power law dependency, especially for the ion with greater density.

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Gravitoelectromagnetic sheath

Goutam

Karmakar

2015

Astrophys Space Sci

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The ion density distribution in a magnetized plasma sheath

Cited by 24 publications

References 13 publications

Combined Effect of Ion Temperature and Magnetic Field on Collisionless Sheath Structure

Combined Effect of Ion Temperature and Magnetic Field on Collisionless Sheath Structure

Magnetized plasma sheath with two positive ions where collision frequencies have a power law dependency on ions velocities

Gravitoelectromagnetic sheath

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