The performance prediction of current drive by the upgraded neutral beam on EAST

doi:10.1088/1402-4896/abfa3f

HFCAS OpenIR

	The performance prediction of current drive by the upgraded neutral beam on EAST
	Wang, Ji; Chen, Jiale; Wu, Bin; Chen, Yuqing; Yang, Zhen; Hu, Chundong; Xie, Yuanlai; Xie, Yahong; Zhang, Xuexi
	2021-07-01
发表期刊	PHYSICA SCRIPTA
ISSN	0031-8949
通讯作者	Chen, Jiale(chen@ipp.ac.cn)
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.
关键词	neutral beam current drive fast ion shielding electron
DOI	10.1088/1402-4896/abfa3f
关键词[WOS]	OPTIMIZATION ; TRANSPORT ; SCENARIO
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11705229] ; National Natural Science Foundation of China[11905142]
项目资助者	National Natural Science Foundation of China
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000646673200001
出版者	IOP PUBLISHING LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/122464
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).