Numerical investigation of a new ICRF heating scenario in D-T plasma on CFETR
文献类型：期刊论文
| 作者 | Song,Chengyi1; Yin,Lan1; Yang,Cheng3 ; Gong,Xueyu1; Zheng,Pingwei2; Huang,Qianhong1; Xia,Yanbo1; Chen,You1
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| 刊名 | Physica Scripta
 |
| 出版日期 | 2020-12-21 |
| 卷号 | 96 |
| 关键词 | CFETR ICRF bulk ion heating |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/abd2e2 |
| 英文摘要 | Abstract For a fusion device, plasma pre-heating is required before the self-sustaining burning-state reactions of deuterium (D) and tritium (T) commence. Plasma heating with waves in the ion-cyclotron range of frequencies (ICRF) is effective in tokamaks. A new three-ion ICRF heating scheme for plasmas in the Chinese Fusion Engineering Test Reactor (CFETR) that require an increase in the bulk ion temperature via heating the lithium impurities in the D–T plasmas, was studied numerically. Our simulations show that the radio-frequency wave power is strongly absorbed by very few 7Li ions with concentrations of 0.01%–0.2% in a suitable mixture of D–T plasmas, the enhanced minority ion heating is related to that the 7Li fundamental resonance layer is very close to the two mode conversion layers. In adjusting the mixtures over a wide range of composition, an oscillatory behaviour in the 7Li absorption efficiency arises because of interference. Moreover, from estimates of the 7Li ion tail energy, most of the tail energy of the minority ions is found to be transferred to background ions via collisions. Compared with the routine (3He)-D–T scheme, the ICRF power is absorbed more effectively by the 7Li ions in the (7Li)-D–T heating scenario, and after the Fokker–Planck equations were solved, a large fraction of bulk ion heating was evident in the (7Li)-D–T heating scenario. The new three-ion scenario may therefore be an attractive proposition for bulk ion heating during the activated phase of the reactor. |
| 语种 | 英语 |
| WOS记录号 | IOP:0031-8949-96-2-ABD2E2 |
| 出版者 | IOP Publishing |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122508]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.School of Nuclear Science and Technology, University of South China, Hengyang 421001, People’s Republic of China 2.School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, People’s Republic of China 3.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Song,Chengyi,Yin,Lan,Yang,Cheng,et al. Numerical investigation of a new ICRF heating scenario in D-T plasma on CFETR[J]. Physica Scripta,2020,96. |
| APA | Song,Chengyi.,Yin,Lan.,Yang,Cheng.,Gong,Xueyu.,Zheng,Pingwei.,...&Chen,You.(2020).Numerical investigation of a new ICRF heating scenario in D-T plasma on CFETR.Physica Scripta,96. |
| MLA | Song,Chengyi,et al."Numerical investigation of a new ICRF heating scenario in D-T plasma on CFETR".Physica Scripta 96(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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