Study on pedestal fluctuations in H-modes without large ELMs during the transition to a detached tungsten divertor in EAST
文献类型：期刊论文
| 作者 | Ye, Y.1,2; Chen, R.2 ; Xu, G. S.2; Wang, L.2; Guo, H. Y.2,3; Zhou, C.4; Wang, Y. F.2; Xu, J. C.5; Lin, X.2,4; Wang, Y. M.2
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| 刊名 | NUCLEAR FUSION
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| 出版日期 | 2021-12-01 |
| 卷号 | 61 |
| 关键词 | pedestal detached divertor small no-ELM fluctuating structures |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ac33c7 |
| 通讯作者 | Chen, R.(chenran@ipp.ac.cn) ; Xu, G. S.(gsxu@ipp.ac.cn) |
| 英文摘要 | Simultaneous control of the damaging erosion induced by the transient and steady-state heat/particle fluxes on the divertor target material is one of the critical issues for next-step magnetic fusion devices. H-mode operation without large edge-localized modes has been achieved in EAST with an ITER-like tungsten divertor, while being compatible with the partial and pronounced detachment in divertor, via either ramping-up of bulk density or injection of low/high-Z impurities. The pedestal characteristics during the transition from the attached to the detached divertor and the reversed transition (detached to attached) under different detachment methods are studied in detail, where the evolution of multi fluctuating structures commonly residing in the H-mode pedestal of EAST (edge coherent mode (ECM), magnetic coherent mode (MCM) and high frequency mode (HFM)) is highlighted. In addition, the possible mechanisms that affect the behavior of these modes, such as the pedestal pressure gradient and the collisionality, have also been discussed. The radial structures of ECM, MCM and HFM are detected, for the first time, in one discharge. Relevant research may provide contribution to obtaining an integrated small/no ELM and radiative divertor scenario in the next step. |
| WOS关键词 | EDGE LOCALIZED MODES ; PLASMA DETACHMENT ; ASDEX UPGRADE ; DIII-D ; CONFINEMENT ; BEHAVIOR ; PROGRESS ; REGIME |
| 资助项目 | National Fusion Energy Program[2019YFE03030000] ; National Natural Science Foundation of China[11905143] ; National Natural Science Foundation of China[12005263] ; National Natural Science Foundation of China[11805136] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH001] ; international partnership program of Chinese academy of sciences[Y16YZ17271] ; National Key R&D Program of China[2017YFE0301300] ; AHNSF[808085J07] ; Institute of Energy, Hefei Comprehensive National Science Center[19KZS205] ; users with Excellence Program of Hefei Science Center[CAS 2020HSC-UE008] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000719572700001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Fusion Energy Program ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; international partnership program of Chinese academy of sciences ; National Key R&D Program of China ; AHNSF ; Institute of Energy, Hefei Comprehensive National Science Center ; users with Excellence Program of Hefei Science Center |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/126668]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, R.; Xu, G. S. |
| 作者单位 | 1.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Gen Atom, POB 85608, San Diego, CA 92186 USA 4.Univ Sci & Technol China, Hefei 230026, Peoples R China 5.Anhui Univ Sci & Technol, Sch Mech Engn, Huainan 232001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Y.,Chen, R.,Xu, G. S.,et al. Study on pedestal fluctuations in H-modes without large ELMs during the transition to a detached tungsten divertor in EAST[J]. NUCLEAR FUSION,2021,61. |
| APA | Ye, Y..,Chen, R..,Xu, G. S..,Wang, L..,Guo, H. Y..,...&Wan, B. N..(2021).Study on pedestal fluctuations in H-modes without large ELMs during the transition to a detached tungsten divertor in EAST.NUCLEAR FUSION,61. |
| MLA | Ye, Y.,et al."Study on pedestal fluctuations in H-modes without large ELMs during the transition to a detached tungsten divertor in EAST".NUCLEAR FUSION 61(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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