One-dimensional static sheath characteristics

Journal Article · Mon Feb 01 04:00:00 EST 1982 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.330556· OSTI ID:5621145

Nightingale, J L; Ault, E R; Mondelli, A A

The boundary layer between an electrode biased to a large negative potential (relative to the electron temperature ephi>>kT/sub e/ ) and a collisionless argon plasma (napprox.1 x 10/sup 9/ cm/sup -3/, kT/sub e/ approx.2.5 eV) was studied using Langmuir probes. A simple model based on Child's law, including finite electron temperature effects, was fit to data obtained from both cold and emitting probes. A convenient method was developed to locate the sheath edge using cold probes. The emitting probe experiments demonstrated what we believe is a new technique for measuring the potential within the non-neutral sheath region.

• Research Organization: Exxon Nuclear Company, Laser Enrichment Department, Richland, Washington 99352
• OSTI ID: 5621145
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 53:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ARGON
BOUNDARY LAYERS
DATA
ELECTRIC POTENTIAL
ELECTRIC PROBES
ELECTRODES
ELECTRON TEMPERATURE
ELEMENTS
ENERGY RANGE
EV RANGE
FLUIDS
GASES
INFORMATION
LANGMUIR PROBE
LAYERS
MATHEMATICAL MODELS
NONMETALS
ONE-DIMENSIONAL CALCULATIONS
PLASMA DIAGNOSTICS
PROBES
RARE GASES