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

Conference · Fri Aug 31 00:00:00 EDT 2001

DOI:https://doi.org/10.1002/1521-3986(200204)42:2/4<389::AID-CTPP389>3.0.CO;2-Y· OSTI ID:15006843

Groth, M; Mahdavi, A M; Porter, G D; Rognlien, T D

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.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15006843
• Report Number(s): UCRL-JC-143963; TRN: US0401133
• Resource Relation: Journal Volume: 42; Journal Issue: 2-4; Conference: 8th International Workshop on Plasma Edge Theory (PET) in Fusion Devices, Espoo (FI), 09/10/2001--09/12/2001; Other Information: PBD: 31 Aug 2001
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
74 ATOMIC AND MOLECULAR PHYSICS
GEOMETRY
HEATING
IONIZATION
PLASMA
PLASMA DENSITY
RECOMBINATION
TARGETS