EAST-NBI experimental data processing method based on improved OPTICS algorithm

doi:10.1016/j.fusengdes.2021.112737

	EAST-NBI experimental data processing method based on improved OPTICS algorithm
	Wang, Jinxin 1,2; Liu, Zhimin 1,2; Zhao, Yuanzhe 2; Xie, Yahong 1,2; Xie, Yuanlai 1,2
刊名	FUSION ENGINEERING AND DESIGN
	2021-11-01
卷号	172
关键词	Ion source Beam extraction Optics algorithm Accuracy Breakdown
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112737
通讯作者	Zhao, Yuanzhe(zyz@ipp.ac.cn)
英文摘要	Generally, the accuracy of the key-values extraction algorithm of experimental data will affect the adjustment of the operating parameters of the experimental device, especially when the NBI (Neutral Beam Injector) ion source breakdown occurs. The instability of the internal plasma of the ion source caused by the mismatch of operating parameters is the main cause of breakdown of the NBI ion source. For the problem of poor accuracy of the existing key-values extraction algorithms for experimental data, this paper proposes an improved algorithm based on Ordering Points To Identify the Clustering Structure (OPTICS). By improving the judgment of the corepoints of the data and the method of searching for core-objects, the time complexity of the algorithm is reduced and the accuracy of the experimental data extraction is improved. The results show that the improved OPTICS algorithm can reach the accuracy of the experimental requirements, meet the data analysis requirements of the EAST-NBI long pulse operation, and can also provide a reference for the failure analysis during the experimental operation.
资助项目	National Key R&D Program of China[2017YFE0300101] ; National Natural Science Foundation of China[11975261]
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000703513500004
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124880]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhao, Yuanzhe
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jinxin,Liu, Zhimin,Zhao, Yuanzhe,et al. EAST-NBI experimental data processing method based on improved OPTICS algorithm[J]. FUSION ENGINEERING AND DESIGN,2021,172.
APA	Wang, Jinxin,Liu, Zhimin,Zhao, Yuanzhe,Xie, Yahong,&Xie, Yuanlai.(2021).EAST-NBI experimental data processing method based on improved OPTICS algorithm.FUSION ENGINEERING AND DESIGN,172.
MLA	Wang, Jinxin,et al."EAST-NBI experimental data processing method based on improved OPTICS algorithm".FUSION ENGINEERING AND DESIGN 172(2021).