Simulation of tungsten target erosion and tungsten impurity transport during argon seeding on EAST
文献类型：期刊论文
| 作者 | Wang, Yilin3; Sang, Chaofeng3; Zhang, Chen3; Zhao, Xuele3; Zhang, Yanjie3; Jia, Guozhang1 ; Senichenkov, I. Yu2; Wang, Liang1; Zhou, Qingrui3; Wang, Dezhen3
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| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 63 |
| ISSN号 | 0741-3335 |
| 关键词 | tungsten divertor argon seeding target erosion tungsten impurity transport tungsten core accumulation |
| DOI | 10.1088/1361-6587/ac0351 |
| 通讯作者 | Sang, Chaofeng(sang@dlut.edu.cn) |
| 英文摘要 | The upgrade of experimental advanced superconducting tokamak lower divertor to use tungsten (W) target is undertaken, however the target erosion and W impurity accumulation in the core pose a great challenge during high power discharge with external impurity seeding. This paper aims to study the influence of argon (Ar) seeding on the target erosion and the W impurity transport on steady-state operation. The scrape-off layer/divertor plasma as well as W impurity are self-consistently simulated by using SOLPS-ITER code package. With the constant input power, the Ar seeding rate is varied to study the changes on divertor plasma, incident Ar flux, the target erosion and W impurity transport. The simulation results indicate that the external Ar impurity influences W target erosion through both reducing the plasma temperature and introducing heavier incident particles, which significantly complicates the erosion process. The eroded W flux has great impact on the W core accumulation, and the divertor plasma condition influences W impurity transport remarkably. A correlation between peak electron temperature (T (e)) at the outer target and the W concentration (C (W)) at the core-edge-interface is found. Moreover, the influence of the W impurity on the background boundary plasma is also evaluated. |
| WOS关键词 | DIVERTOR ; TOKAMAK ; EDGE |
| 资助项目 | National Key R&D Program of China[2017YFA0402500] ; National Key R&D Program of China[2018YFE0301101] ; National Key R&D Program of China[2017YFE0300402] ; National Natural Science Foundation of China[11775044] ; National Natural Science Foundation of China[12011530053] ; Fundamental Research Funds for the Central Universities[DUT21GJ204] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000658873800001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123781]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Sang, Chaofeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Peter Great St Petersburg Polytech Univ, Polytechnicheskaya Ul 29, St Petersburg 195251, Russia 3.Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yilin,Sang, Chaofeng,Zhang, Chen,et al. Simulation of tungsten target erosion and tungsten impurity transport during argon seeding on EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2021,63. |
| APA | Wang, Yilin.,Sang, Chaofeng.,Zhang, Chen.,Zhao, Xuele.,Zhang, Yanjie.,...&Wang, Dezhen.(2021).Simulation of tungsten target erosion and tungsten impurity transport during argon seeding on EAST.PLASMA PHYSICS AND CONTROLLED FUSION,63. |
| MLA | Wang, Yilin,et al."Simulation of tungsten target erosion and tungsten impurity transport during 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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