T E CT E C Euratom-FOM 11 ITPA, Garching, May 2007 Conclusions Exposures at flux densities of 1-5·10 24 m -2 s -1 demonstrated Calculated sheath flux agrees with power to target Flux density sets surface temperature up to ~1400 K Up to 50 vol.% redeposition observed (Preliminary) chemical erosion yield drops by factor 50 by elevating surface temperature from 600 to 1400 K
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