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ERO modelling of tungsten erosion and re-deposition in EAST L mode discharges
Xie, H.1; Ding, R.1; Kirschner, A.2; Chen, J. L.1; Ding, F.1; Mao, H. M.1; Feng, W.1; Borodin, D.2; Wang, L.1
2017-09-01
发表期刊PHYSICS OF PLASMAS
卷号24期号:9页码:1-10
摘要Tungsten erosion and re-deposition at the upper outer divertor of the Experimental Advanced Superconducting Tokamak has been modelled using the 3D Monte Carlo code ERO. The measured divertor plasma condition in attached L mode discharges with upper single null configuration has been used to build the background plasma in the simulations. The tungsten gross erosion rate is mainly determined by carbon impurity in the background plasma. Increasing carbon concentration can first increase and afterwards suppress the tungsten erosion rate. Taking into account the material mixing surface model, the influence of eroded particles returning to the surface on sputtering has been studied. Sputtering by eroded particles returning to the surface can significantly enhance the gross erosion by reduction of the carbon ratio within the surface interaction layer and by increasing the erosion rate due to sputtering by both eroded tungsten and carbon particles. Modelling indicates that carbon deposition occurs on the dome plate and part of the vertical plate close to the dome plate, whereas tungsten net erosion occurs on most of the vertical plate. The modelling results are in reasonable agreement with the experimental WI spectroscopy. Published by AIP Publishing.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
资助者National Magnetic Confinement Fusion Science Program of China(2013GB107004 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; 2013GB105003) ; 11675218 ; 11575243) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; 2013GB105003) ; 11675218 ; 11575243)
DOI10.1063/1.4991457
关键词[WOS]PLASMA-WALL INTERACTION ; FUSION DEVICES ; SIMULATION ; CARBON ; EDGE ; REDEPOSITION ; DIVERTOR ; UPGRADE ; TEXTOR ; CODE
收录类别SCI
语种英语
资助者National Magnetic Confinement Fusion Science Program of China(2013GB107004 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; 2013GB105003) ; 11675218 ; 11575243) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; 2013GB105003) ; 11675218 ; 11575243)
WOS研究方向Physics
WOS类目Physics, Fluids & Plasmas
WOS记录号WOS:000412107400051
引用统计
文献类型期刊论文
条目标识符http://ir.hfcas.ac.cn:8080/handle/334002/33793
专题中科院等离子体物理研究所
作者单位1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China
2.Forschungszentrum Julich, Inst Energy & Climate Res Plasma Phys, D-52425 Julich, Germany
推荐引用方式
GB/T 7714
Xie, H.,Ding, R.,Kirschner, A.,et al. ERO modelling of tungsten erosion and re-deposition in EAST L mode discharges[J]. PHYSICS OF PLASMAS,2017,24(9):1-10.
APA Xie, H..,Ding, R..,Kirschner, A..,Chen, J. L..,Ding, F..,...&Wang, L..(2017).ERO modelling of tungsten erosion and re-deposition in EAST L mode discharges.PHYSICS OF PLASMAS,24(9),1-10.
MLA Xie, H.,et al."ERO modelling of tungsten erosion and re-deposition in EAST L mode discharges".PHYSICS OF PLASMAS 24.9(2017):1-10.
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