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000866943 1001_ $$0P:(DE-Juel1)171509$$aEksaeva, A.$$b0$$eCorresponding author
000866943 245__ $$aSurface roughness effect on Mo physical sputtering and re-deposition in the linear plasma device PSI-2 predicted by ERO2.0
000866943 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2019
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000866943 520__ $$aSurface morphology and its evolution during the plasma irradiation is known to have a large influence on the erosion and resulting lifetime of plasma-facing components as well as tritium retention. For instance, surface roughness can affect physical sputtering, re-deposition, as well as angular distributions of the sputtered species. In this study the effect of surface roughness is implemented into the 3D Monte-Carlo code ERO2.0. First modelling results for molybdenum (Mo) irradiated with deuterium (D) in the conditions foreseen for the planned experiments at the linear plasma device PSI-2 are presented. Using the constructed examples of surfaces with various (regular and fractal) roughness types it is shown that the effective sputtering yield decreases for rough surfaces in comparison to smooth ones. The angular distribution of particles escaping from the rough surface collimates with the increase of the surface structure's aspect ratio. Moreover, the modelling predicts flattening of the surface during the plasma irradiation due to the preferable re-deposition in the “valleys” and sputtering of the peak tops.
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000866943 536__ $$0G:(DE-Juel1)jiek43_20190501$$a3D Monte-Carlo simulations of plasma-wall interaction and impurity transport in fusion devices (jiek43_20190501)$$cjiek43_20190501$$f3D Monte-Carlo simulations of plasma-wall interaction and impurity transport in fusion devices$$x1
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000866943 7001_ $$0P:(DE-Juel1)7884$$aBorodin, D.$$b1
000866943 7001_ $$0P:(DE-Juel1)165905$$aRomazanov, J.$$b2
000866943 7001_ $$0P:(DE-Juel1)2620$$aKirschner, A.$$b3
000866943 7001_ $$0P:(DE-Juel1)130070$$aKreter, A.$$b4
000866943 7001_ $$0P:(DE-Juel1)166210$$aEichler, M.$$b5
000866943 7001_ $$0P:(DE-Juel1)162160$$aRasinski, M.$$b6
000866943 7001_ $$0P:(DE-Juel1)130122$$aPospieszczyk, A.$$b7
000866943 7001_ $$0P:(DE-Juel1)6784$$aUnterberg, B.$$b8
000866943 7001_ $$0P:(DE-Juel1)129976$$aBrezinsek, S.$$b9
000866943 7001_ $$0P:(DE-Juel1)157640$$aLinsmeier, Ch.$$b10
000866943 7001_ $$0P:(DE-HGF)0$$aTskhakaya, D.$$b11
000866943 7001_ $$0P:(DE-Juel1)168396$$aBorodkina, I.$$b12
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000866943 773__ $$0PERI:(DE-600)2808888-8$$a10.1016/j.nme.2019.02.006$$gVol. 19, p. 13 - 18$$p13 - 18$$tNuclear materials and energy$$v19$$x2352-1791$$y2019
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