Temperature-dependent in-situ LEIS measurement of W surface enrichment by 250 eV D sputtering of EUROFER

H. R. Koslowski,S. R. Bhattacharyya,P. Hansen,Ch. Linsmeier,M. Rasinski,P. Ström

Nuclear Materials and Energy（2018）

引用 17|浏览10

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摘要

•In-situ LEIS is utilised to detect W surface enrichment by preferential sputtering.•EUROFER steel is irradiated with 250 eV D atoms at various temperatures up to 800 K.•W surface enrichment is detected at room temperature but vanishes at 800 K.•An upper limit for the diffusion activation energy of W in EUROFER is 1.6 eV.

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关键词

Low energy ion scattering (LEIS),EUROFER,Plasma-surface interaction,Preferential sputtering,W diffusion in Fe,Diffusion activation energy

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