The effect of 2/1 pre-existing magnetic islands width on the suppression of runaway electrons in disruption simulations of J-TEXT
文献类型：期刊论文
| 作者 | Li, C. H.1; Jiang, Z. H.1; Lin, Z. F.1; Ye, X.1; Huang, J.1 ; Tong, R. H.1; Zhu, L. Z.1; Chen, Z. Y.1,4; Liang, Y.1,2,3; Zhu, P.1
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| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
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| 出版日期 | 2020-09-01 |
| 卷号 | 62 |
| ISSN号 | 0741-3335 |
| 关键词 | disruption resonant magnetic perturbation mode penetration runaway electrons |
| DOI | 10.1088/1361-6587/aba365 |
| 通讯作者 | Jiang, Z. H.(zhhjiang@host.edu.cn) |
| 英文摘要 | The suppression of runaway electrons (REs) is influenced by the size of pre-existing 2/1 magnetic islands. Simulations of argon (Ar) massive gas injection into J-TEXT plasmas with pre-existing 2/1 magnetic islands of different width are performed with the 3D magnetohydrodynamic code called NIMROD (Sovinecet al2004J. Comput. Phys.195355). Results show that the ratio of remaining REs is not monotonically dependent on the width of pre-existing 2/1 magnetic islands. Large enough pre-existing 2/1 magnetic islands can lead to strong magnetic perturbation and strong magnetic surface stochasticity to expel the REs. The critical width for the suppression of REs is to be 0.31 as the minor radius. Under the condition of suitable small pre-existing 2/1 magnetic islands width, with island width ranging from 0.07 to 0.11 times the minor radius, the mitigation of REs is achieved. The duration of magnetic perturbations delta B/B(n= 1) (exceeding (4 to 6) x 10(-3)) is a key for RE loss, and high amplitude of highnmodes plays an important role in RE loss. |
| 资助项目 | National Key R&D Program of China[2018YFE0309100] ; National Natural Science Foundation of China[11575068] ; National Natural Science Foundation of China[11775089] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000556579900001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/44765]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Jiang, Z. H. |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, Int Joint Res Lab Magnet Confinement Fus & Plasma, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Forschungszentrum Julich, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany 4.Chengdu Univ, Chengdu 610106, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, C. H.,Jiang, Z. H.,Lin, Z. F.,et al. The effect of 2/1 pre-existing magnetic islands width on the suppression of runaway electrons in disruption simulations of J-TEXT[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2020,62. |
| APA | Li, C. H..,Jiang, Z. H..,Lin, Z. F..,Ye, X..,Huang, J..,...&Ding, Y. H..(2020).The effect of 2/1 pre-existing magnetic islands width on the suppression of runaway electrons in disruption simulations of J-TEXT.PLASMA PHYSICS AND CONTROLLED FUSION,62. |
| MLA | Li, C. H.,et al."The effect of 2/1 pre-existing magnetic islands width on the suppression of runaway electrons in disruption simulations of J-TEXT".PLASMA PHYSICS AND CONTROLLED FUSION 62(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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