Influence of triangularity on the plasma response to resonant magnetic perturbations
文献类型：期刊论文
| 作者 | Gu, S.9; Paz-Soldan, C.1; Liu, Y. Q.10; Sun, Y.8 ; Lyons, B. C.10; Ryan, D. A.7; Weisberg, D.10; Leuthold, N.1; Willensdorfer, M.6; Suttrop, W.6
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| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 62 |
| 关键词 | plasma response triangularity RMP ELM control |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ac5f7b |
| 通讯作者 | Gu, S.(gus@fusion.gat.com) |
| 英文摘要 | The effect of the axisymmetric plasma shape on the non-axisymmetric plasma response to resonant magnetic perturbations is investigated in experiment and modeling for the DIII-D, EAST and ASDEX Upgrade tokamaks. Systematically modeling the effect of the triangularity, whilst keeping other equilibrium quantities largely unchanged, reveals that the plasma response is strongly suppressed at high triangularity compared to that at low triangularity. This is validated through targeted comparison with experiments at DIII-D, EAST, and ASDEX Upgrade. DIII-D and EAST magnetic measurements are used to validate simulations, while at ASDEX Upgrade the plasma edge displacement is measured. Both experiments and modeling find a reduced magnetic plasma response on the high-field side at high triangularity across devices. Multi-modal analysis of the simulation results extracts the mode structure and applied spectrum dependence of each mode. The amplitude of the dominant mode reveals similar trends with the edge resonance and radial displacement near the X-point, which suggests that the multi-mode plasma response provides another way to understand the edge localized mode (ELM) control physics. The plasma response is strongly reduced at high triangularity compared to that at low triangularity, which implies different ELM control effects as shaping is varied. These findings indicate that the plasma shape should be taken into consideration when designing an RMP-ELM control strategy in experiment, and that predictive plasma response calculations can be used to maximize access to RMP-ELM control in future devices by maximizing the coupling between coils and the plasma. |
| 资助项目 | US DOE[DE-SC0020298] ; US DOE[DE-SC0021968] ; US DOE[DE-FC02-04ER54698] ; US DOE[DE-AC52-07NA27344] ; US DOE[DE-AC02-09CH11466] ; US DOE[DE-SC0022270] ; US DOE[DE-AC05-00OR22725] ; National Key R&D Program of China[2017YFE0301100] ; National Natural Science Foundation of China[11875292] ; National Natural Science Foundation of China[11805237] ; Euratom research and training programme 2014-2018 and 2019-2020[633053] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000792476800001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | US DOE ; National Key R&D Program of China ; National Natural Science Foundation of China ; Euratom research and training programme 2014-2018 and 2019-2020 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/130815]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Gu, S. |
| 作者单位 | 1.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA 4.Lawrence Livermore Natl Lab, Livermore, CA 94550 USA 5.Princeton Plasma Phys Lab, Princeton, NJ 08543 USA 6.Max Planck Inst Plasma Phys, D-85748 Garching, Germany 7.Culham Sci Ctr, CCFE, Abingdon OX14 3DB, Oxon, England 8.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China 9.Oak Ridge Associated Univ, Oak Ridge, TN 37830 USA 10.Gen Atom, POB 85608, San Diego, CA 92186 USA |
| 推荐引用方式 GB/T 7714 | Gu, S.,Paz-Soldan, C.,Liu, Y. Q.,et al. Influence of triangularity on the plasma response to resonant magnetic perturbations[J]. NUCLEAR FUSION,2022,62. |
| APA | Gu, S..,Paz-Soldan, C..,Liu, Y. Q..,Sun, Y..,Lyons, B. C..,...&Griener, M..(2022).Influence of triangularity on the plasma response to resonant magnetic perturbations.NUCLEAR FUSION,62. |
| MLA | Gu, S.,et al."Influence of triangularity on the plasma response to resonant magnetic perturbations".NUCLEAR FUSION 62(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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