Počet záznamů: 1
ERO2.0 modelling of the effects of surface roughness on molybdenum erosion and redeposition in the PSI-2 linear plasma device
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SYSNO ASEP 0540332 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název ERO2.0 modelling of the effects of surface roughness on molybdenum erosion and redeposition in the PSI-2 linear plasma device Tvůrce(i) Eksaeva, A. (DE)
Borodin, D. (DE)
Romazanov, J. (DE)
Kreter, A. (DE)
Pospieszczyk, A. (DE)
Dickheuer, S. (DE)
Möller, S. (US)
Göths, B. (DE)
Rasinski, M. (DE)
Knochen, M. (UY)
Terra, A. (DE)
Kirschner, A. (DE)
Borodkina, I. (RU)
Eichler, M. (DE)
Unterberg, B. (DE)
Brezinsek, S. (DE)
Linsmeier, Ch. (DE)
Vassallo, G. (GB)
Pedroni, M. (IT)
Passoni, M. (IT)
Dellasega, D. (IT)
Sala, M. (DE)
Romeo, F. (IT)
Henderson, S. (GB)
O'Mullane, M. (GB)
Summers, H. (GB)
Tskhakaya, David (UFP-V) ORCID
Schmid, K. (DE)Celkový počet autorů 28 Číslo článku 014057 Zdroj.dok. Physica Scripta. - : Institute of Physics Publishing - ISSN 0031-8949
Roč. 2020, T171 (2020)Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. SE - Švédsko Klíč. slova 3d monte carlo ero ; Ero2.0 ; Linear plasma device ; Molybdenum ; Sputtering ; Surface morphology ; Surface roughness Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) Způsob publikování Omezený přístup Institucionální podpora UFP-V - RVO:61389021 UT WOS 000520000600057 EID SCOPUS 85084660218 DOI 10.1088/1402-4896/ab5810 Anotace The surface morphology of plasma-facing components (PFCs) and its evolution during plasma irradiation has been shown to have a significant effect on the erosion and subsequent transport of sputtered particles in plasma. This in turn can influence the resulting lifetime of PFCs. A model for treatment of the effect of surface roughness on the erosion of PFCs has recently been incorporated into the three-dimensional Monte Carlo code ERO2.0. First simulations have confirmed a significant influence of the assumed surface roughness (for both regular and stochastic numerically constructed samples) on both the effective sputtering yields Y eff and the effective angular distributions of sputtered particles. In this study, a series of experiments at the linear plasma device PSI-2 are conducted to test the effect of surface roughness on the sputtering parameters. Graphite samples prepared with a 100 nm molybdenum layer with various surface roughness characteristic sizes (R a = 110 nm, 280 nm, 600 nm and R a < 20 nm) were exposed to a helium plasma in the PSI-2 linear plasma device at a magnetic field B = 0.1 T. These PSI-2 experiments were simulated using ERO2.0 with a surface morphology model. Simulations are able to reproduce the experimentally observed significant suppression of erosion for higher R a values. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2021 Elektronická adresa https://iopscience.iop.org/article/10.1088/1402-4896/ab5810
Počet záznamů: 1