Nonlocal fluxes at a plasma sheath

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · Physics of Fluids B; (USA)

DOI:https://doi.org/10.1063/1.859264· OSTI ID:6765227

Marchand, R; Abou-Assaleh, Z; Matte, J P ^[1]

---

1. INRS-Energie, C. P. 1020, Varennes, Quebec, J3X 1S2, Canada (CA)

The particle and energy fluxes of electrons at the boundary of a plasma in contact with a perfectly absorbing plate are considered. In general, the fluxes are shown not to be determined by the plasma temperature and density at the plate but rather by a convolution of the plasma profiles in the vicinity of the plate. A simple empirical expression is proposed for the nonlocal fluxes, which approximately reproduces the results of a full kinetic calculation. The implications of this, to divertor plasmas near the neutralizer plate, are discussed.

• OSTI ID: 6765227
• Journal Information: Physics of Fluids B; (USA), Journal Name: Physics of Fluids B; (USA) Vol. 2:6; ISSN 0899-8221; ISSN PFBPE
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700103* -- Fusion Energy-- Plasma Research-- Kinetics
700201 -- Fusion Power Plant Technology-- Blanket Engineering
ABSORPTION
BEAM NEUTRALIZATION
BOUNDARY LAYERS
DIVERTORS
ELECTRON SPECTRA
EQUATIONS
FLUX DENSITY
IMPURITIES
LAYERS
PLASMA SHEATH
PLATES
SPECTRA