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

doi:10.1088/1741-4326/aa6451

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Advances in understanding of high-Z material erosion and re-deposition in low-Z wall environment in DIII-D
	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
	2017-05-01
卷号	57 期号:5 页码:1-8
关键词	Erosion Deposition High-z Materials Impurity
DOI	10.1088/1741-4326/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)
内容类型	期刊论文
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.