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ELM frequency enhancement and discharge modification through lithium granule injection into EAST H-modes

文献类型：期刊论文

作者Lunsford, R.5; Hu, J. S.4; Sun, Z.5; Maingi, R.5; Mansfield, D. K.5; Xu, W.4; Zuo, G. Z.4; Huang, M.4; Diallo, A.5; Osborne, T.3
刊名NUCLEAR FUSION
出版日期2018-12-01
卷号58期号:12页码:13
关键词ELM pacing lithium
ISSN号0029-5515
DOI10.1088/1741-4326/aae2c1
通讯作者Lunsford, R.(rlunsfor@pppl.gov)
英文摘要The injection of impurity granules into fusion research discharges can serve as a catalyst for ELM events. For sufficiently low ELM frequencies, and granule sizes above a threshold, this can result in full control of the ELM cycle, referred to as ELM pacing. For this research, we extend the investigation to conditions where the natural ELM frequency is too high for ELM pacing to be realized. Utilizing multiple sizes of lithium granules and classifying their effects by granule size, we demonstrate that ELM mitigation through frequency multiplication can be used at ELM triggering rates that nominally make ELM pacing unrealizable. We find that above a size threshold, injected granules promptly trigger ELMs and commensurately enhance the ELM frequency. Below this threshold size, injection of an individual granule does not always lead to the prompt triggering of an ELM; however, collective ablation in the edge pedestal region does enhance the ELM frequency. Specifically, Li granules too small to individually trigger ELMs were injected into EAST H-mode discharges at frequencies up to 2.3 kHz; collectively the granules were observed to enhance the natural ELM frequency up to 620 Hz, resulting in a similar to 2.4 x multiplication of the natural ELM frequency and a 50% decrease of the ELM size.
WOS关键词PELLET INJECTION ; ASDEX UPGRADE ; DIII-D ; ABLATION ; MITIGATION ; ITER
资助项目U.S. Dept. of Energy[DE-AC02-09CH11466] ; U.S. Dept. of Energy[DE-FG02-09ER55012] ; U.S. Dept. of Energy[DE-FC02-04ER54698] ; National Natural Science Foundation of China[11625524] ; National Natural Science Foundation of China[11605246] ; National Natural Science Foundation of China[11405210] ; National Natural Science Foundation of China[11321092] ; National Magnetic Confinement Fusion Science Program[2013GB114004] ; National Key R&D Program of China[2017YFA0402500] ; National Key R&D Program of China[2017YFE0301100]
WOS研究方向Physics
语种英语
WOS记录号WOS:000447043600003
出版者IOP PUBLISHING LTD
资助机构U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; U.S. Dept. of Energy ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Magnetic Confinement Fusion Science Program ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39531]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Lunsford, R.
作者单位1.Hunan Univ, Dept Appl Phys, Changsha 410082, Hunan, Peoples R China
2.Johns Hopkins Univ, Baltimore, MD 21211 USA
3.Gen Atom, POB 85608, San Diego, CA 92186 USA
4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
5.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA
6.Oak Ridge Natl Lab, POB 2009, Oak Ridge, TN 37830 USA
推荐引用方式
GB/T 7714		 Lunsford, R.,Hu, J. S.,Sun, Z.,et al. ELM frequency enhancement and discharge modification through lithium granule injection into EAST H-modes[J]. NUCLEAR FUSION,2018,58(12):13.
APA Lunsford, R..,Hu, J. S..,Sun, Z..,Maingi, R..,Mansfield, D. K..,...&Li, J. G..(2018).ELM frequency enhancement and discharge modification through lithium granule injection into EAST H-modes.NUCLEAR FUSION,58(12),13.
MLA Lunsford, R.,et al."ELM frequency enhancement and discharge modification through lithium granule injection into EAST H-modes".NUCLEAR FUSION 58.12(2018):13.

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来源：合肥物质科学研究院

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