Accelerator-based plasma-wall interaction studies on the TEXTOR tokamak

Conference · Sat Sep 01 04:00:00 EDT 1984

OSTI ID:5989301

Zuhr, R A

Deposition probes are commonly used to determine plasma edge characteristics in tokamaks. Such probes are frequently analyzed using accelerator-based techniques and can yield information on impurity fluxes, hydrogen fluxes and energies, and surface erosion rates in the plasma edge. Several types of deposition probes have been employed to investigate the plasma edge region of the TEXTOR tokamak in Juelich, FRG. TEXTOR is a moderate size tokamak (major radius = 1.75 m) that is capable of 2 to 3 s discharges and contains a liner that can be heated to 600/sup 0/C. These capabilities make TEXTOR particularly attractive for the study of plasma-wall interactions. Several countries, including the United States, Sweden and the host nation, are carrying on active research programs in the area of plasma-edge studies. This research has included measurements of plasma, impurity, and power fluxes at various radii in the scrapeoff layer. The results achieved in characterizing the plasma edge in these recent probe studies on TEXTOR will be reviewed.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5989301
• Report Number(s): CONF-841117-51; ON: DE85007540
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
BOUNDARY LAYERS
CLOSED PLASMA DEVICES
FIRST WALL
INTERACTIONS
LAYERS
PLASMA DIAGNOSTICS
PLASMA SCRAPE-OFF LAYER
PROBES
TEXTOR TOKAMAK
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTOR WALLS
TOKAMAK DEVICES