Modelling of surface evolution of rough surface on divertor target in fusion devices

被引：18

作者：

Dai, Shuyu ^{[1
]}

Liu, Shengguang ^{[1
]}

Sun, Jizhong ^{[1
]}

Kirschner, A. ^{[2
]}

Kawamura, G. ^{[3
]}

Tskhakaya, D. ^{[4
]}

Ding, Rui ^{[5
]}

Luo, Guangnan ^{[5
]}

Wang, Dezhen ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Phys & Optoelect Technol, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China

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

[3] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

[4] TU Wien, Inst Appl Phys, Assoc EURATOM oAW, A-1040 Vienna, Austria

[5] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China

来源：

JOURNAL OF NUCLEAR MATERIALS | 2015年 / 463卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

TRANSPORT; EROSION;

D O I：

10.1016/j.jnucmat.2014.11.081

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 3D Monte-Carlo code SURO has been used to study the surface evolution of rough surface on the divertor target in fusion devices. The edge plasma at divertor region is modelled by the SDPIC code and used as input data for SURO. Coupled with SDPIC, SURO can perform more sophisticated simulations to calculate the local angle and surface evolution of rough surface. The simulation results show that the incident direction of magnetic field, gyration and E x B force has a significant impact on 3D angular distribution of background plasma and accordingly on the erosion of rough surface. The net eroded areal density of rough surface is studied by varying the magnetic field angle with surface normal. The evolution of the microscopic morphology of rough surface can lead to a significant change in the physical sputtering yield. (C) 2014 Published by Elsevier B.V.

引用

页码：372 / 376

页数：5

共 12 条

[1] Relevance of surface roughness to tungsten sputtering and carbon implantation [J].