Calculation of the field and current density distributions in a non-self-sustained discharge in the discharge chamber of a CO laser

Journal Article · Tue Jan 15 04:00:00 EST 2013 · Plasma Physics Reports

DOI:https://doi.org/10.1134/S1063780X12120033· OSTI ID:22156479

Gurashvili, V. A.; Kochetov, I. V.; Napartovich, A. P.; Spitsyn, D. I.; Taran, M. D. ^[1]

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1. Troitsk Institute for Innovation and Fusion Research (Russian Federation)

Two-dimensional spatial distributions of the electric field and current density in a non-self-sustained discharge controlled by a fast electron beam were calculated in the quasineutral plasma approximation. The calculations were carried out for a gas-discharge chamber with an antistreamer electrode grid placed in parallel to the output window of the ionizer. The voltage drop near the grid surface that appears due to the inhomogeneity of the spatial distribution of the current density was calculated. The fraction of the discharge current that passes the grid and flows onto the foil separating the vacuum volume of the ionizer from the gas-discharge chamber was estimated. The dependence of the calculated values on the geometric parameters of the electrode grid and its position with respect to the output of the ionizer was analyzed.

• OSTI ID: 22156479
• Journal Information: Plasma Physics Reports, Journal Name: Plasma Physics Reports Journal Issue: 1 Vol. 39; ISSN PPHREM; ISSN 1063-780X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CARBON MONOXIDE LASERS
CURRENT DENSITY
ELECTRIC FIELDS
ELECTRON BEAMS
FOILS
GLOW DISCHARGES
PLASMA SIMULATION
SPATIAL DISTRIBUTION
TWO-DIMENSIONAL CALCULATIONS
VOLTAGE DROP