Redeposition of the sputtered surface in limiters
Conference
·
· Proc. Symp. Eng. Probl. Fusion Res.; (United States)
OSTI ID:6360350
Erosion of the surface coating of a pumped limiter by sputtering may be a critical life-limiting issue for future tokamak reactors. Redeposition of the sputtered material, however, may extend the coating life significantly. This subject has now been studied through the use of a code which models the redeposition of sputtered material which gets ionized in the scrape-off lyer. The studies were made for 'high flux' and 'low flux' edge conditions corresponding to FED and STARFIRE limiters and assumed plasma-edge parameters. The results indicate that substantial redeposition from the scrape-off layer ionized neutrals occurs in the cases considered.
- Research Organization:
- Argonne Natl Lab, IL, USA
- OSTI ID:
- 6360350
- Report Number(s):
- CONF-811040-
- Conference Information:
- Journal Name: Proc. Symp. Eng. Probl. Fusion Res.; (United States)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
COMPUTER CODES
EROSION
IMPURITIES
LIFE SPAN
LIMITERS
PLASMA DENSITY
PLASMA SHEATH
SPUTTERING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS
700102 -- Fusion Energy-- Plasma Research-- Diagnostics
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
COMPUTER CODES
EROSION
IMPURITIES
LIFE SPAN
LIMITERS
PLASMA DENSITY
PLASMA SHEATH
SPUTTERING
THERMONUCLEAR REACTORS
TOKAMAK TYPE REACTORS