Perspective of analogy between heat loads and impurity production in L-mode discharges with ICRH in WEST
文献类型：期刊论文
| 作者 | Urbanczyk, G.1,2; Fedorczak, N.3; Gunn, J.3; Colas, L.3; Li, J. G.2; Wang, K.2 |
| 刊名 | NUCLEAR MATERIALS AND ENERGY
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 26 |
| 关键词 | ICRH RF sheath Infrared Spectroscopy WEST |
| DOI | 10.1016/j.nme.2021.100925 |
| 通讯作者 | Urbanczyk, G.() |
| 英文摘要 | This study compares experimental observations on plasma surface interactions and heat loads induced by Ion Cyclotron Resonance Heating (ICRH) in WEST medium size tokamak. When powering ICRH, core contamination by metallic impurities systematically results in an increase of the power radiated, often hardening the achievement of long discharges in H-mode at high power. The radiofrequency (RF) sheaths are excited mainly at proximity of ICRF antennas, resulting in an increase of metallic impurity sources. In the presence of RF sheaths, we show that most of the power reaching the wall can become carried by ions. Therefore, both heat loads and material sputtering are the result of ion fluxes on the various plasma facing components, such that some analogy between both phenomena can be made. By combining infrared with spectroscopic measurements, we show experimental evidences from WEST of RF-induced heat fluxes and their correlation with local production of impurity. |
| 资助项目 | Euratom research and training program[633053] ; National key research and development program[2016YFA0400600] ; National key research and development program[2016YFA0400601] ; National Magnetic confinement Fusion Science Program[2015 GB101001] ; National Natural Science Foundation of China[11675213] ; National Natural Science Foundation of China[11375235] ; National Natural Science Foundation of China[11375236] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000628782500047 |
| 资助机构 | Euratom research and training program ; National key research and development program ; National Magnetic confinement Fusion Science Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/121367]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Urbanczyk, G. |
| 作者单位 | 1.Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.CEA, IRFM, F-13108 Saint Paul Lez Durance, France |
| 推荐引用方式 GB/T 7714 | Urbanczyk, G.,Fedorczak, N.,Gunn, J.,et al. Perspective of analogy between heat loads and impurity production in L-mode discharges with ICRH in WEST[J]. NUCLEAR MATERIALS AND ENERGY,2021,26. |
| APA | Urbanczyk, G.,Fedorczak, N.,Gunn, J.,Colas, L.,Li, J. G.,&Wang, K..(2021).Perspective of analogy between heat loads and impurity production in L-mode discharges with ICRH in WEST.NUCLEAR MATERIALS AND ENERGY,26. |
| MLA | Urbanczyk, G.,et al."Perspective of analogy between heat loads and impurity production in L-mode discharges with ICRH in WEST".NUCLEAR MATERIALS AND ENERGY 26(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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