A self-consistent analysis of a collisional presheath

Monojoy Goswami; H. Ramachandran

doi:10.1063/1.873739

A self-consistent analysis of a collisional presheath

Monojoy Goswami
, H. Ramachandran

Research output: Contribution to journal › Conference article › peer-review

11 Scopus citations

Abstract

A one-dimensional plasma discharge is analyzed under steady state conditions. Using simple models for source and collisions, a first-order differential equation is obtained that simultaneously describes both the bulk and the presheath of the plasma. This equation is numerically solved in various regimes and physically interesting quantities such as the ratio of bulk to edge density and the size of the inertial terms in the bulk region are presented. Analytic expressions are obtained for profiles when collision frequency is assumed constant. Findings include n_B/n_SE∼2.5 for highly collisional systems, significant flow in the bulk plasma, and modified I-V characteristics.

Original language	English
Pages (from-to)	4522-4532
Number of pages	11
Journal	Physics of Plasmas
Volume	6
Issue number	12
DOIs	https://doi.org/10.1063/1.873739
State	Published - Dec 1999
Externally published	Yes
Event	Proceedings of the 1999 APS Centennial Meeting - Atlanta, GA, United States Duration: Mar 20 1999 → Mar 26 1999

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10.1063/1.873739

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title = "A self-consistent analysis of a collisional presheath",

abstract = "A one-dimensional plasma discharge is analyzed under steady state conditions. Using simple models for source and collisions, a first-order differential equation is obtained that simultaneously describes both the bulk and the presheath of the plasma. This equation is numerically solved in various regimes and physically interesting quantities such as the ratio of bulk to edge density and the size of the inertial terms in the bulk region are presented. Analytic expressions are obtained for profiles when collision frequency is assumed constant. Findings include nB/nSE∼2.5 for highly collisional systems, significant flow in the bulk plasma, and modified I-V characteristics.",

author = "Monojoy Goswami and H. Ramachandran",

year = "1999",

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journal = "Physics of Plasmas",

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note = "Proceedings of the 1999 APS Centennial Meeting ; Conference date: 20-03-1999 Through 26-03-1999",

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T1 - A self-consistent analysis of a collisional presheath

AU - Goswami, Monojoy

AU - Ramachandran, H.

PY - 1999/12

Y1 - 1999/12

N2 - A one-dimensional plasma discharge is analyzed under steady state conditions. Using simple models for source and collisions, a first-order differential equation is obtained that simultaneously describes both the bulk and the presheath of the plasma. This equation is numerically solved in various regimes and physically interesting quantities such as the ratio of bulk to edge density and the size of the inertial terms in the bulk region are presented. Analytic expressions are obtained for profiles when collision frequency is assumed constant. Findings include nB/nSE∼2.5 for highly collisional systems, significant flow in the bulk plasma, and modified I-V characteristics.

AB - A one-dimensional plasma discharge is analyzed under steady state conditions. Using simple models for source and collisions, a first-order differential equation is obtained that simultaneously describes both the bulk and the presheath of the plasma. This equation is numerically solved in various regimes and physically interesting quantities such as the ratio of bulk to edge density and the size of the inertial terms in the bulk region are presented. Analytic expressions are obtained for profiles when collision frequency is assumed constant. Findings include nB/nSE∼2.5 for highly collisional systems, significant flow in the bulk plasma, and modified I-V characteristics.

UR - https://www.scopus.com/pages/publications/0038301547

U2 - 10.1063/1.873739

DO - 10.1063/1.873739

M3 - Conference article

AN - SCOPUS:0038301547

SN - 1070-664X

VL - 6

SP - 4522

EP - 4532

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 12

T2 - Proceedings of the 1999 APS Centennial Meeting

Y2 - 20 March 1999 through 26 March 1999

ER -

A self-consistent analysis of a collisional presheath

Abstract

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