Influence of the Walls on the Formation of a DC Glow Discharge

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Influence of the Walls on the Formation of a DC Glow Discharge. / Demidov, V.I.; Bogdanov, E.A.; Adams, S.; Kudryavtsev, A.A.

In: Bulletin of the American Physical Society, Vol. 54, No. 12, 2009, p. 14.

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Author

Demidov, V.I. ; Bogdanov, E.A. ; Adams, S. ; Kudryavtsev, A.A. / Influence of the Walls on the Formation of a DC Glow Discharge. In: Bulletin of the American Physical Society. 2009 ; Vol. 54, No. 12. pp. 14.

BibTeX

@article{10d03367c3c340768a3d8d63946dc4e4,

title = "Influence of the Walls on the Formation of a DC Glow Discharge",

abstract = "2D simulations of a DC glow discharge with a cold cathode in argon have been performed for various radii of the discharge tube. It is shown that the loss of the charged particles to the walls can significantly affect plasma parameters as well as properties of the cathode sheath. The longitude dimensions of the Negative Glow and Faraday Dark Space depend on the transverse loss of the charge particles and are not consistently predicted with a 1D model. The common assumption that the cathode sheath can be analyzed independently of the plasma also may not be valid. The transverse inhomogeneity of the plasma leads to a change in the current density distribution over the cathode surface. The thickness of the cathode sheath can vary with radial distance from the discharge axis, even for the case of negligible radial loss of the charge particles. The 2D model results provide an analysis of the conditions of applicability of the 1D model.",

author = "V.I. Demidov and E.A. Bogdanov and S. Adams and A.A. Kudryavtsev",

year = "2009",

language = "English",

volume = "54",

pages = "14",

journal = "Bulletin of the American Physical Society",

issn = "0003-0503",

publisher = "American Physical Society",

number = "12",

}

RIS

TY - JOUR

T1 - Influence of the Walls on the Formation of a DC Glow Discharge

AU - Demidov, V.I.

AU - Bogdanov, E.A.

AU - Adams, S.

AU - Kudryavtsev, A.A.

PY - 2009

Y1 - 2009

N2 - 2D simulations of a DC glow discharge with a cold cathode in argon have been performed for various radii of the discharge tube. It is shown that the loss of the charged particles to the walls can significantly affect plasma parameters as well as properties of the cathode sheath. The longitude dimensions of the Negative Glow and Faraday Dark Space depend on the transverse loss of the charge particles and are not consistently predicted with a 1D model. The common assumption that the cathode sheath can be analyzed independently of the plasma also may not be valid. The transverse inhomogeneity of the plasma leads to a change in the current density distribution over the cathode surface. The thickness of the cathode sheath can vary with radial distance from the discharge axis, even for the case of negligible radial loss of the charge particles. The 2D model results provide an analysis of the conditions of applicability of the 1D model.

AB - 2D simulations of a DC glow discharge with a cold cathode in argon have been performed for various radii of the discharge tube. It is shown that the loss of the charged particles to the walls can significantly affect plasma parameters as well as properties of the cathode sheath. The longitude dimensions of the Negative Glow and Faraday Dark Space depend on the transverse loss of the charge particles and are not consistently predicted with a 1D model. The common assumption that the cathode sheath can be analyzed independently of the plasma also may not be valid. The transverse inhomogeneity of the plasma leads to a change in the current density distribution over the cathode surface. The thickness of the cathode sheath can vary with radial distance from the discharge axis, even for the case of negligible radial loss of the charge particles. The 2D model results provide an analysis of the conditions of applicability of the 1D model.

M3 - Article

VL - 54

SP - 14

JO - Bulletin of the American Physical Society

JF - Bulletin of the American Physical Society

SN - 0003-0503

IS - 12

ER -

ID: 5253177