An interpretive model for the double peaks of divertor tungsten erosion during type-I ELMs in EAST
文献类型：期刊论文
| 作者 | Xu, Guoliang1,2,3; Ding, Rui5 ; Ding, Fang5; Chen, Xiahua5; Qian, Xinyuan1,2,3; Brezinsek, Sebastijan4; Gao, Xiang1,2,3; Zang, Qing1,2,3; Wang, Liang5; Jie, Yinxian1,2,3
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| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 61 |
| 关键词 | divertor tungsten erosion edge-localized mode EAST |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ac086a |
| 通讯作者 | Ding, Rui(rding@ipp.ac.cn) |
| 英文摘要 | Double peaks of divertor tungsten erosion during type-I edge-localized modes (ELMs) were observed in the EAST tokamak. To study this unique phenomenon, an analytical model of plasma expansion into vacuum was used to investigate the ELM parallel transport along the magnetic field line to the divertor target. The modeling results reveal that during ELM bursts, the energetic C6+ transport is slower than the main ions due to a lower initial thermal speed. The time of C6+ arriving at the divertor target from the modeling is consistent with the second tungsten erosion peak. Based on the particle flux from the transport model, a newly developed mixed-material model quantitively reproduced the intra-ELM tungsten erosion profiles for both deuterium and helium discharges. A lithium-carbon coating makes the heavier impurity (C6+) comparatively more effective than the main ions on tungsten sputtering, and thus makes the second tungsten erosion peak more remarkable on EAST experiments. |
| WOS关键词 | LITHIUM ; EXPANSION ; LAYER ; WALL |
| 资助项目 | National Natural Science Foundation of China[12022511] ; National Natural Science Foundation of China[12005143] ; National Natural Science Foundation of China[11861131010] ; National Key Research and Development Program of China[2017YFE0301300] ; National Key Research and Development Program of China[2017YFA0402500] ; Postdoctoral Science Foundation of China[2020M672764] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH010] ; National MCF Energy R&D Program of China[2019YFE03080100] ; CASHIPS Director's Fund[BJPY2019B01] ; Shenzhen Clean Energy Research Institute |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000672142800001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Postdoctoral Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; National MCF Energy R&D Program of China ; CASHIPS Director's Fund ; Shenzhen Clean Energy Research Institute |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123592]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ding, Rui |
| 作者单位 | 1.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 2.Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China 3.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 4.Forschungszentrum Julich, Partner Trilateral Euregio Cluster TEC, Inst Energie & Klimaforsch Plasmaphys, D-52425 Julich, Germany 5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Guoliang,Ding, Rui,Ding, Fang,et al. An interpretive model for the double peaks of divertor tungsten erosion during type-I ELMs in EAST[J]. NUCLEAR FUSION,2021,61. |
| APA | Xu, Guoliang.,Ding, Rui.,Ding, Fang.,Chen, Xiahua.,Qian, Xinyuan.,...&Wan, Yuanxi.(2021).An interpretive model for the double peaks of divertor tungsten erosion during type-I ELMs in EAST.NUCLEAR FUSION,61. |
| MLA | Xu, Guoliang,et al."An interpretive model for the double peaks of divertor tungsten erosion during type-I ELMs 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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