Surface roughness effect on Mo physical sputtering and re-deposition in the linear plasma device PSI-2 predicted by ERO2.0

被引：28

作者：

Eksaeva, A. ^{[1
]}

Borodin, D. ^{[1
,2
]}

Romazanov, J. ^{[1
]}

Kirschner, A. ^{[1
]}

Kreter, A. ^{[1
]}

Eichler, M. ^{[1
]}

Rasinski, M. ^{[1
]}

Pospieszczyk, A. ^{[1
]}

Unterberg, B. ^{[1
]}

Brezinsek, S. ^{[1
]}

Linsmeier, Ch ^{[1
]}

Tskhakaya, D. ^{[3
]}

Borodkina, I ^{[1
,4
]}

Komm, M. ^{[5
]}

机构：

[1] Forschungszentrum Julich, TEC, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany

[2] Forschungszentrum Julich, JARA HPC, Julich Supercomp Ctr, D-52425 Julich, Germany

[3] Univ Innsbruck, Dept Math, A-6020 Innsbruck, Austria

[4] Nucl Res Natl Univ MEPhI, Moscow 115409, Russia

[5] CAS, Inst Plasma Phys, Slovankou 3, Prague 18200 8, Czech Republic

来源：

NUCLEAR MATERIALS AND ENERGY | 2019年 / 19卷

关键词：

DIVERTOR PLATE; PISCES-B; EROSION; COATINGS;

D O I：

10.1016/j.nme.2019.02.006

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

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.

引用

页码：13 / 18

页数：6

共 5 条

[1] ERO2.0 modelling of the effects of surface roughness on molybdenum erosion and redeposition in the PSI-2 linear plasma device
Eksaeva, A.
Borodin, D.
Romazanov, J.
Kreter, A.
Pospieszczyk, A.
Dickheuer, S.
Moeller, S.
Goeths, B.
Rasinski, M.
Knoche, U.
Terra, A.
Kirschner, A.
Borodkina, I.
Eichler, M.
Unterberg, B.
Brezinsek, S.
Linsmeier, Ch
Vassallo, E.
Pedroni, M.
Passoni, M.
Dellasega, D.
Sala, M.
Romeo, F.
Henderson, S.
O'Mullane, M.
Summers, H.
Tskhakaya, D.
Schmid, K.
PHYSICA SCRIPTA, 2020, T171 (01)
[2] ERO modeling of Cr sputtering in the linear plasma device PSI-2
Eksaeva, A.
Borodin, D.
Kreter, A.
Nishijima, D.
Pospieszczyk, A.
Schlummer, T.
Ertmer, S.
Terra, A.
Unterberg, B.
Kirschner, A.
Romazanov, J.
Brezinsek, S.
Rasinski, M.
Henderson, S.
O'Mullane, M.
Summers, H.
Bluteau, M.
Marenkov, E.
PHYSICA SCRIPTA, 2017, T170
[3] ERO modelling of tungsten erosion in the linear plasma device PSI-2
Eksaeva, A.
Marenkov, E.
Borodin, D.
Kreter, A.
Reinhart, M.
Kirschner, A.
Romazanov, J.
Terra, A.
Brezinsek, S.
Nordlund, K.
NUCLEAR MATERIALS AND ENERGY, 2017, 12 : 253 - 260
[4] Zeeman effect of isotopes of Kr and Xe investigated at the linear plasma device PSI-2
Sackers, M.
Marchuk, O.
Dipti, D.
Ralchenko, Yu
Ertmer, S.
Brezinsek, S.
Kreter, A.
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2024, 33 (02):
[5] Modeling of tungsten transport in the linear plasma device PSI-2 with the 3D Monte-Carlo code ERO
Marenkov, E.
Eksaeva, A.
Borodin, D.
Kirschner, A.
Laengner, M.
Kurnaev, V.
Kreter, A.
Coenen, J. W.
Rasinski, M.
JOURNAL OF NUCLEAR MATERIALS, 2015, 463 : 268 - 271

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