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Study of Plasma Detachment in a Simplified 2D Geometry using UEDGE.

DE200415006843

Publication Date	2001
Personal Author	Groth, M.; Mahdavi, A. M.; Porter, G. D.; Rognlien, T. D.
Page Count	14
Abstract	The location of the ionization front in a generic, detached plasma has been studied in a two-dimensional slab geometry by varying the core plasma density and input heating power. The ratio of the recombination to ionization current and the momentum losses in the computational domain have been used to quantify the degree of detachment. Contours of constant ratio of these parameter in the core plasma density--heating power parameter space show that at high input power higher momentum losses can be achieved even at low density. High fraction of recombination, however, require high core densities to sufficiently separate the plasma from the target plate.
Keywords	Plasma detachment Geometry Heating Ionization Plasma Density Recombination Targets Ionization front 2 D geometry UEDGE Input heating power Core plasma density Two-dimensional slab geometry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200416

Study of Plasma Detachment in a Simplified 2D Geometry using UEDGE.

Study of Plasma Detachment in a Simplified 2D Geometry using UEDGE.
DE200415006843

Publication Date	2001
Personal Author	Groth, M.; Mahdavi, A. M.; Porter, G. D.; Rognlien, T. D.
Page Count	14
Abstract	The location of the ionization front in a generic, detached plasma has been studied in a two-dimensional slab geometry by varying the core plasma density and input heating power. The ratio of the recombination to ionization current and the momentum losses in the computational domain have been used to quantify the degree of detachment. Contours of constant ratio of these parameter in the core plasma density--heating power parameter space show that at high input power higher momentum losses can be achieved even at low density. High fraction of recombination, however, require high core densities to sufficiently separate the plasma from the target plate.
Keywords	Plasma detachment Geometry Heating Ionization Plasma Density Recombination Targets Ionization front 2 D geometry UEDGE Input heating power Core plasma density Two-dimensional slab geometry
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Lawrence Livermore National Lab., CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200416