The effects of E-r x B-t drift on LH wave coupling with divertor configuration at EAST
文献类型：期刊论文
| 作者 | Li, Y. C.1,5; Ding, B. J.4 ; Li, M. H.4; Wang, M.4; Liu, L.4; Wang, Y. F.3; Wu, C. B.3; Yan, G. H.3; Kong, E. H.2; Zhang, L.6
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| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
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| 出版日期 | 2021-07-01 |
| 卷号 | 63 |
| ISSN号 | 0741-3335 |
| 关键词 | LH wave coupling E-r x B-t drift plasma current edge density at the LH grill |
| DOI | 10.1088/1361-6587/abfdd3 |
| 通讯作者 | Ding, B. J.(bjding@ipp.ac.cn) ; Lin, X. D.(linxd@szu.edu.cn) |
| 英文摘要 | The coupling characteristics of the 4.6 GHz lower hybrid (LH) grill and the factors affecting LH wave coupling, mainly E-r x B-t drift, with divertor configuration in anti-clockwise/clockwise magnetic field direction are studied. Based on the Langmuir probe measurement, the relationship between the reflection coefficient (RC) of LH power and the edge density at the grill mouth (n(e,grill)) measured by Langmuir probes is investigated. The optimum LH wave coupling with RC less than 2% is achieved when n(e,grill) is in the range of 1 x 10(18) m(-3) -2 x 10(18) m(-3), which is quite close to the theoretically predicted value. In addition, the experimental results show that E-r x B-t drift in the divertor scrape off layer plays a dominant role in affecting n(e,grill) and LH wave coupling. Studies show that the discrepancy in n(e,grill) and LH wave coupling in different magnetic field directions is mainly attributed to the different directions of E-r x B-t drift, whereas the corresponding discrepancy with different plasma currents is mainly ascribed to the change in E-r x B-t drift intensity. Therefore, for the upper single null divertor configuration, a lower/higher plasma currents is more favorable for increasing n(e,grill) and improving LH wave coupling in anti-clockwise/clockwise B-t. The above studies are of great significance for optimizing and improving LH wave coupling in the extension of the plasma operation regime. |
| WOS关键词 | HYBRID CURRENT DRIVE ; SCRAPE-OFF LAYER ; STEADY-STATE ; PLASMA ; TRANSPORT ; SYSTEM |
| 资助项目 | National Key Research and Development Program of China[2016YFA0400603] ; National Key Research and Development Program of China[2016YFA0400602] ; National Natural Science Foundation of China[11975266] ; National Natural Science Foundation of China[11675214] ; National Natural Science Foundation of China[11775259] ; National Natural Science Foundation of China[11805233] ; National Natural Science Foundation of China[U19A20113] ; Shenzhen Clean Energy Research Institute |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000660953400001 |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Shenzhen Clean Energy Research Institute |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123911]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ding, B. J.; Lin, X. D. |
| 作者单位 | 1.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 2.Anhui Univ Sci & Technol, Huainan 232001, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 5.Shenzhen Univ, Coll Optoelect Engn, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China 6.Shanxi Univ Technol, Hanzhong 723001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Y. C.,Ding, B. J.,Li, M. H.,et al. The effects of E-r x B-t drift on LH wave coupling with divertor configuration at EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2021,63. |
| APA | Li, Y. C..,Ding, B. J..,Li, M. H..,Wang, M..,Liu, L..,...&Wang, L..(2021).The effects of E-r x B-t drift on LH wave coupling with divertor configuration at EAST.PLASMA PHYSICS AND CONTROLLED FUSION,63. |
| MLA | Li, Y. C.,et al."The effects of E-r x B-t drift on LH wave coupling with divertor configuration at 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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