Edge localized mode suppression and plasma response using mixed toroidal harmonic resonant magnetic perturbations in DIII-D
文献类型:期刊论文
作者 | Gu, S.1,2; Sun, Y.1; Paz-Soldan, C.3; Nazikian, R.4; Jia, M.1,2; Wang, H. H.1; Guo, W.1; Liu, Y. Q.3; Abrams, T.3; Cui, L.4 |
刊名 | NUCLEAR FUSION |
出版日期 | 2019-02-01 |
卷号 | 59期号:2页码:14 |
ISSN号 | 0029-5515 |
关键词 | ELM control RMP plasma response error field correction |
DOI | 10.1088/1741-4326/aaf5a3 |
英文摘要 | Edge localized mode (ELM) suppression has been achieved in the DIII-D tokamak using mixed toroidal n = 2 and 3 harmonic resonant magnetic perturbations (RMPs). Here n is the toroidal mode number. It is observed that mixed toroidal harmonic RMPs lower the threshold current for ELM suppression compared to the single n = 3 case. The decreased threshold suggests that mixed toroidal harmonic RMPs offer a better path to ELM control. The error field effect is studied by superimposing n = 2 error field correction upon the n = 2 phase scan, which shows that it is possible to suppress the ELM and correct the error field simultaneously. The plasma response measured by magnetic sensors shows the n = 3 harmonic plays a key role in ELM suppression using mixed toroidal harmonic RMPs. A nonlinear jump in the n = 3 plasma response is observed during the bifurcation from mitigation to suppression of ELMs, similar to the n = 2 results reported in Nazikian et al (2015 Phys. Rev. Lett. 114 5). Magneto-hydrodynamic simulations using toroidal rotation find good agreement with the ELM mitigated phase when the input rotation profile is high and induces strong screening of the RMP. Simulations with zero-crossing rotation find strong penetration of the RMP and reproduce the mode structure of ELM suppression on both the low and high field side. This suggests that edge components may penetrate during the transition from ELM mitigation to suppression. |
资助项目 | National Key R&D Program of China[2017YFE0301100] ; National Natural Science Foundation of China[11875292] ; National Natural Science Foundation of China[11475224] ; National Natural Science Foundation of China[11505235] ; US Department of Energy[DE-FC02-04ER54698] ; US Department of Energy[DE-AC02-09CH11466] ; US Department of Energy[DE-FG02-05ER54809] |
WOS研究方向 | Physics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000455130400003 |
资助机构 | 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 ; 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 ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; 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 ; 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 ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; 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 ; 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 ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; 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 ; 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 ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy ; US Department of Energy |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/41291] |
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 | Sun, Y. |
作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 3.Gen Atom, POB 85608, San Diego, CA USA 4.PPPL, POB 451, Princeton, NJ 08543 USA 5.Univ Calif San Diego, La Jolla, CA 92186 USA |
推荐引用方式 GB/T 7714 | Gu, S.,Sun, Y.,Paz-Soldan, C.,et al. Edge localized mode suppression and plasma response using mixed toroidal harmonic resonant magnetic perturbations in DIII-D[J]. NUCLEAR FUSION,2019,59(2):14. |
APA | Gu, S..,Sun, Y..,Paz-Soldan, C..,Nazikian, R..,Jia, M..,...&Shi, T..(2019).Edge localized mode suppression and plasma response using mixed toroidal harmonic resonant magnetic perturbations in DIII-D.NUCLEAR FUSION,59(2),14. |
MLA | Gu, S.,et al."Edge localized mode suppression and plasma response using mixed toroidal harmonic resonant magnetic perturbations in DIII-D".NUCLEAR FUSION 59.2(2019):14. |
入库方式: OAI收割
来源:合肥物质科学研究院
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