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@ARTICLE{Eksaeva:866943,
author = {Eksaeva, A. and Borodin, D. and Romazanov, J. and
Kirschner, A. and Kreter, A. and Eichler, M. and Rasinski,
M. and Pospieszczyk, A. and Unterberg, B. and Brezinsek, S.
and Linsmeier, Ch. and Tskhakaya, D. and Borodkina, I. and
Komm, M.},
title = {{S}urface roughness effect on {M}o physical sputtering and
re-deposition in the linear plasma device {PSI}-2 predicted
by {ERO}2.0},
journal = {Nuclear materials and energy},
volume = {19},
issn = {2352-1791},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2019-05990},
pages = {13 - 18},
year = {2019},
abstract = {Surface morphology and its evolution during the plasma
irradiation is known to have a large influence on the
erosion and resulting lifetime of plasma-facing components
as well as tritium retention. For instance, surface
roughness can affect physical sputtering, re-deposition, as
well as angular distributions of the sputtered species. In
this study the effect of surface roughness is implemented
into the 3D Monte-Carlo code ERO2.0. First modelling results
for molybdenum (Mo) irradiated with deuterium (D) in the
conditions foreseen for the planned experiments at the
linear plasma device PSI-2 are presented. Using the
constructed examples of surfaces with various (regular and
fractal) roughness types it is shown that the effective
sputtering yield decreases for rough surfaces in comparison
to smooth ones. The angular distribution of particles
escaping from the rough surface collimates with the increase
of the surface structure's aspect ratio. Moreover, the
modelling predicts flattening of the surface during the
plasma irradiation due to the preferable re-deposition in
the “valleys” and sputtering of the peak tops.},
cin = {IEK-4 / JARA-HPC},
ddc = {624},
cid = {I:(DE-Juel1)IEK-4-20101013 / $I:(DE-82)080012_20140620$},
pnm = {174 - Plasma-Wall-Interaction (POF3-174) / 3D Monte-Carlo
simulations of plasma-wall interaction and impurity
transport in fusion devices $(jiek43_20190501)$},
pid = {G:(DE-HGF)POF3-174 / $G:(DE-Juel1)jiek43_20190501$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000470746100003},
doi = {10.1016/j.nme.2019.02.006},
url = {https://juser.fz-juelich.de/record/866943},
}