Details

Autor(en) / Beteiligte

• Maier, H.
• Greuner, H.
• Toussaint, U.v.
• Balden, M.
• Böswirth, B.
• Elgeti, S.

Titel

Determination of the temperature dependence of tungsten erosion

Ist Teil von

• Journal of nuclear materials, 2015-08, Vol.463, p.337-340

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• We present the results of erosion measurements on actively cooled tungsten samples at quasi-constant surface temperature conditions performed in the high heat flux facility GLADIS. The samples were exposed to a H beam at a central power density of 10MW/m2 up to a fluence of 1026m−2. We observe a weak temperature dependence of the erosion yield. The data are compared with similar data obtained from loading with a H beam with He admixture. Both datasets are analysed in a probabilistic approach. We obtain activation energies of 0.04eV and 0.06eV for the cases with and without He, respectively.