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![]() ![]() ![]() |
刊名 | NUCLEAR FUSION
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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 |
DOI | 10.1088/1741-4326/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. |
入库方式: OAI收割
来源:合肥物质科学研究院
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