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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
Source PublicationPHYSICS OF PLASMAS
Volume24Issue:9Pages:1-10
AbstractTungsten 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational 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
WOS KeywordPLASMA-WALL INTERACTION ; FUSION DEVICES ; SIMULATION ; CARBON ; EDGE ; REDEPOSITION ; DIVERTOR ; UPGRADE ; TEXTOR ; CODE
Indexed BySCI
Language英语
Funding OrganizationNational 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 Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000412107400051
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/33793
Collection中科院等离子体物理研究所
Affiliation1.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
Recommended Citation
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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