Experimental study of the influence of gas puff locations on H-mode boundary plasmas with argon seeding on EAST
文献类型：期刊论文
| 作者 | He, Tao2,3; Yang, Zhongshi2 ; Wang, Liang2; Li, Kedong2,3; Wang, Huiqian4; Eldon, David4; Hyatt, Alan4; Humphreys, David4; Meng, Lingyi2,3; Ding, Fang2
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| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
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| 出版日期 | 2021-08-01 |
| 卷号 | 63 |
| 关键词 | radiative divertor argon puff locations poloidal asymmetry energy detachment |
| ISSN号 | 0741-3335 |
| DOI | 10.1088/1361-6587/ac0354 |
| 通讯作者 | He, Tao() ; Yang, Zhongshi(zsyang@ipp.ac.cn) ; Wang, Liang(lwang@ipp.ac.cn) |
| 英文摘要 | To investigate the optimal scenario of impurity seeding to obtain divertor plasma detachment for target protection, experiments with Ar&D-2 seeding from two different poloidal locations, the upper outer (UO) divertor target and lower outer (LO) target, were carried out on EAST. Partial energy detachment (the electron temperature near the strike point T (e,spt) <= 10 eV) were obtained with Ar&D-2 mixture puffing from the UO target and, for the first time, from the LO target into H-mode plasmas in the upper single null (USN) configuration. The peak heat flux q (t) on the UO target was significantly reduced (by similar to 80%). The rollover of ion flux density j (s) did not appear probably due to insufficient momentum loss, which is independent of the puff locations. The poloidal asymmetries of particle and heat fluxes on the targets have also been investigated. The UO-dominant asymmetry of particle flux was reversed, while the UO-dominant asymmetry of heat flux was mitigated but not reversed. The plasma confinement dropped by only 14% and 8.2% in the LO-puff case and UO-puff case, respectively, during detachment. The high level of C may contributed greatly to the higher radiation in the bulk plasma region and the greater decline in W (MHD) in the LO-puff case. |
| WOS关键词 | DIVERTOR ; RADIATION ; SOL ; PERFORMANCE ; PROFILE ; FLOW |
| 资助项目 | National Key Research & Development Program of China[2018YFE0303103] ; National Key Research & Development Program of China[2017YFE0301300] ; National Natural Science Foundation of China[11875287] ; National Natural Science Foundation of China[11922513] ; National Natural Science Foundation of China[11705233] ; Anhui Provincial Natural Science Foundation[2008085QA38] ; Special Research Assistant Funding of CAS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000658868300001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Key Research & Development Program of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Special Research Assistant Funding of CAS |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123860]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | He, Tao; Yang, Zhongshi; Wang, Liang |
| 作者单位 | 1.Anhui Univ Sci & Technol, Sch Mech Engn, Huainan 232001, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Anhui, Peoples R China 3.Univ Sci & Technol China, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China 4.Gen Atom, POB 85608, San Diego, CA 92186 USA |
| 推荐引用方式 GB/T 7714 | He, Tao,Yang, Zhongshi,Wang, Liang,et al. Experimental study of the influence of gas puff locations on H-mode boundary plasmas with argon seeding on EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2021,63. |
| APA | He, Tao.,Yang, Zhongshi.,Wang, Liang.,Li, Kedong.,Wang, Huiqian.,...&Luo, Guang-Nan.(2021).Experimental study of the influence of gas puff locations on H-mode boundary plasmas with argon seeding on EAST.PLASMA PHYSICS AND CONTROLLED FUSION,63. |
| MLA | He, Tao,et al."Experimental study of the influence of gas puff locations on H-mode boundary plasmas with argon seeding on EAST".PLASMA PHYSICS AND CONTROLLED FUSION 63(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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