Hydrogenic retention in tungsten exposed to ITER divertor relevant plasma flux densities

TitleHydrogenic retention in tungsten exposed to ITER divertor relevant plasma flux densities
Publication TypeConference Proceedings
Year of Publication2009
AuthorsG.M Wright, A.W Kleyn, E. Alves, L.C Alves, N.P Barradas, G.J van Rooij, A.J van Lange, A.E Shumack, J. Westerhout, R.S. Al, W.AJ Vijvers, B. de Groot, M.JV de Pol, H.J van der Meiden, J. Rapp, N.JL Cardozo
Pagination610-613
PublisherElsevier Science Bv
Accession NumberISI:000267747300142
Abstract

Tungsten targets are exposed to the plasma conditions expected at the strike point of a detached ITER divertor (similar to 10(24) D/m(2)s, Te similar to 2 eV). The surface temperature of the target is similar to 1600 K at the center and decreased radially to similar to 1000 K at the edges. A 2-D spatial scan of the W target using nuclear reaction analysis (NRA) shows an asymmetric D retention profile with the lowest retention values at the center of the target and the highest 6 mm off-center. Even in the regions of larger retention, the D concentrations were

URL<Go to ISI>://000267747300142
Division

Fusion Physcis

PID

cdc3170264a1a29e3f9102c9bf4926ff

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