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Advances in understanding of high-Z material erosion and re-deposition in low-Z wall environment in DIII-D

文献类型：期刊论文

作者Ding, R.1,2,3; Rudakov, D. L.4; Stangeby, P. C.5; Wampler, W. R.6; Abrams, T.3; Brezinsek, S.7; Briesemeister, A.8; Bykov, I.4; Chan, V. S.3; Chrobak, C. P.3
刊名NUCLEAR FUSION
出版日期2017-05-01
卷号57期号:5页码:1-8
关键词Erosion Deposition High-z Materials Impurity
DOI10.1088/1741-4326/aa6451
文献子类Article
英文摘要Dedicated DIII-D experiments coupled with modeling reveal that the net erosion rate of high-Z materials, i.e. Mo and W, is strongly affected by carbon concentration in the plasma and the magnetic pre-sheath properties. Different methods such as electrical biasing and local gas injection have been investigated to control high-Z material erosion. The net erosion rate of high-Z materials is significantly reduced due to the high local re-deposition ratio. The ERO modeling shows that the local re-deposition ratio is mainly controlled by the electric field and plasma density within the magnetic pre-sheath. The net erosion can be significantly suppressed by reducing the sheath potential drop. A high carbon impurity concentration in the background plasma is also found to reduce the net erosion rate of high-Z materials. Both DIII-D experiments and modeling show that local (CH4)-C-13 injection can create a carbon coating on the metal surface. The profile of C-13 deposition provides quantitative information on radial transport due to E x B drift and the cross-field diffusion. The deuterium gas injection upstream of the W sample can reduce W net erosion rate by plasma perturbation. In H-mode plasmas, the measured inter-ELM W erosion rates at different radial locations are well reproduced by ERO modeling taking into account charge-state-resolved carbon ion flux in the background plasma calculated using the OEDGE code.
WOS关键词MAGNETIC-FIELD ; NET EROSION ; PLASMA ; DIVERTOR ; TUNGSTEN ; TOKAMAK ; CODE
WOS研究方向Physics
语种英语
WOS记录号WOS:000399125300003
资助机构US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Science, Office of Fusion Energy Sciences(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; US Department of Energy, Office of Advanced Scientific Computing Research(GA-DE-SC0008698) ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; DOE Office of Science(DE-AC05-06OR23100 ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; US Department of Energy's National Nuclear Security Administration(DE-AC04-94AL85000) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Magnetic Confinement Fusion Science Program of China(2013GB107004) ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; National Natural Science Foundation of China(11375010 ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; Sino-German Center for Research Promotion(GZ769) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; (FWF P26544-N27) ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; DE-FG02-07ER54917 ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; 11675218) ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-AC05-00OR22725 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-FC02-04ER54698 ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344) ; DE-AC52-07NA27344)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31831]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位1.Oak Ridge Associated Univ, Oak Ridge, TN 37830 USA
2.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China
3.Gen Atom, POB 85608, San Diego, CA 92186 USA
4.Univ Calif San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA
5.Univ Toronto, Inst Aerosp Studies, Toronto, ON M3H 5T6, Canada
6.Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA
7.Forschungszentrum Julich, Inst Energy & Climate Research Plasma Phys, Trilateral Euregio Cluster TEC, D-52425 Julich, Germany
8.Oak Ridge Natl Lab, Oak Ridge, TN USA
9.Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA
10.TU Wien, Inst Appl Phys, Fus OAW, Wiedner Hauptstr 8-10, A-1040 Vienna, Austria
推荐引用方式
GB/T 7714		 Ding, R.,Rudakov, D. L.,Stangeby, P. C.,et al. Advances in understanding of high-Z material erosion and re-deposition in low-Z wall environment in DIII-D[J]. NUCLEAR FUSION,2017,57(5):1-8.
APA Ding, R..,Rudakov, D. L..,Stangeby, P. C..,Wampler, W. R..,Abrams, T..,...&Watkins, J. G..(2017).Advances in understanding of high-Z material erosion and re-deposition in low-Z wall environment in DIII-D.NUCLEAR FUSION,57(5),1-8.
MLA Ding, R.,et al."Advances in understanding of high-Z material erosion and re-deposition in low-Z wall environment in DIII-D".NUCLEAR FUSION 57.5(2017):1-8.

入库方式： OAI收割

来源：合肥物质科学研究院

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