[Zurück]

R. Stadlmayr, B. Berger, D. Blöch, D. Mayer, B. Stechauner, F. Aumayr:
"Erosion of fusion relevant surfaces by using a quartz crystal microbalance";
in: "Proc. of the XXIII International Conference on Ion-Surface Interactions (ISI-2017), editors: E.Yu. Zykova, P.A. Karaseov, A.I. Titov, V.E. Yurasovam, 21.-25.08.2015, Moscow, Russia,", Vol.1; National Research University Higher School of Economics, 2017, S. 46 - 49.

With this presumption, the lifespan of the plasma facing components (PFC) in the reactor will
be dominated by the plasma-induced erosion due to ion and neutral particle bombardment.
Therefore an improvement of our understanding in ion-surface interactions is crucial in order
to use nuclear fusion as an energy source. At the expected low ion energies in the near PFC
surface region [1], the erosion rate of high-Z materials is significantly lower than the erosion
of low-Z materials. Therefore the use of thin tungsten (W) armors as PFCs are foreseen in
some DEMO design studies [1, 2]. Additionally, the presumed steady-state operation of a
future fusion reactor brings new demands to the heat removal from the PFCs. Especially the
bonding of the W armor to the cooling components is highly important and technologically
challenging.