Pulsed sheath dynamics in a small cylindrical bore

Journal Article · Sat Oct 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870881· OSTI ID:6640539

Sheridan, T E ^[1]

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1. Department of Physics, West Virginia University, Morgantown, West Virginia 26506-6315 (United States)

The temporal evolution of the plasma sheath in small cylindrical bores and planar gaps is calculated for zero-rise-time voltage pulses. The ions are modeled as a cold, collisionless fluid, and the problem is reduced to the solution of two coupled, first-order, ordinary differential equations. These equations are solved analytically for the planar case, and numerically for the cylindrical case. The maximum ion impact energies are 50% and 36.8% of the maximum potential drop in the planar and cylindrical cases, respectively. Ion impact energy decreases with the square of the radius of the bore.

• OSTI ID: 6640539
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:10; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350* -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
CONFIGURATION
CYLINDRICAL CONFIGURATION
ION DENSITY
ION IMPLANTATION
PLASMA SHEATH
PULSE TECHNIQUES
TIME DEPENDENCE