The performance prediction of current drive by the upgraded neutral beam on EAST
文献类型：期刊论文
| 作者 | Wang, Ji; Chen, Jiale ; Wu, Bin; Chen, Yuqing; Yang, Zhen; Hu, Chundong; Xie, Yuanlai; Xie, Yahong; Zhang, Xuexi
|
| 刊名 | PHYSICA SCRIPTA
 |
| 出版日期 | 2021-07-01 |
| 卷号 | 96 |
| 关键词 | neutral beam current drive fast ion shielding electron |
| ISSN号 | 0031-8949 |
| DOI | 10.1088/1402-4896/abfa3f |
| 通讯作者 | Chen, Jiale(chen@ipp.ac.cn) |
| 英文摘要 | The neutral beamline originally located on Port F is being modified to Port D and the injection direction is changed from clockwise injection (counter-IP) to counterclockwise injection (co-IP) on EAST. The operational quality of the two neutral beamlines will also be upgraded in the following months. The neutral beam current drive (NBCD) of the two upgraded beamlines is substantially improved due to the change from the balanced-injection to the same direction injection with the plasma current by simulation with ONETWO/NUBEAM and TRANSP/NUBEAM codes. Discharge scenarios with the typical parameters are modeled to evaluate NBCD performances for the upgraded beams at beam energy below 70 keV. The maximal NBCD in the prediction exceeds 117 kA which is much higher than the previous level. The simulation results indicate that NBCD after the upgrade are improved with the increase of the beam power and electron temperature Te. The increased plasma density can result in a decrease in NBCD, but it will also lead to a substantial increase in bootstrap current which occupies the dominant fraction of non-induced current. The NBCD can be partly enhanced due to the reduction of the electron shielding effect with the proper increase of Z(eff). These simulation results demonstrate the performances ofNBCDafter beams upgrade, and can also provide some valuable guidance for future experiments on EAST. |
| WOS关键词 | OPTIMIZATION ; TRANSPORT ; SCENARIO |
| 资助项目 | National Natural Science Foundation of China[11705229] ; National Natural Science Foundation of China[11905142] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000646673200001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/122463]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Jiale |
| 作者单位 | Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Ji,Chen, Jiale,Wu, Bin,et al. The performance prediction of current drive by the upgraded neutral beam on EAST[J]. PHYSICA SCRIPTA,2021,96. |
| APA | Wang, Ji.,Chen, Jiale.,Wu, Bin.,Chen, Yuqing.,Yang, Zhen.,...&Zhang, Xuexi.(2021).The performance prediction of current drive by the upgraded neutral beam on EAST.PHYSICA SCRIPTA,96. |
| MLA | Wang, Ji,et al."The performance prediction of current drive by the upgraded neutral beam on EAST".PHYSICA SCRIPTA 96(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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