Preliminary result of cavity ring-down spectroscopy system for radio frequency negative ion source test facility

doi:10.1063/1.5128096

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院固体物理研究所

	Preliminary result of cavity ring-down spectroscopy system for radio frequency negative ion source test facility
	Liang, Lizhen; Hu, Chundong; Yan, Jingyang; Zhao, Yuanzhe; Xie, Yahong
刊名	REVIEW OF SCIENTIFIC INSTRUMENTS
	2019-12-01
卷号	90
ISSN号	0034-6748
DOI	10.1063/1.5128096
通讯作者	Liang, Lizhen(lzliang@ipp.ac.cn)
英文摘要	Negative ion source is a core part of the neutral beam injection system for magnetic confinement fusion devices. The density of produced hydrogen negative ions is a critical parameter of the negative ion source. Cavity ring-down spectroscopy (CRDS) is an ultrasensitive absorption diagnostic technique for density measurement. Based on the photodetachment process, CRDS can measure the integrated line-of-sight hydrogen negative ion density in a high power ion source. The CRDS diagnostic system has been applied to Hefei utility negative ion test equipment with the radio frequency (RF) source, which is now one of the references for the China Fusion Engineering Test Reactor neutral beam injection system. Typical ring-down signals are obtained to calculate the density of hydrogen negative ions. The time evolution of hydrogen negative ion density is successfully measured. Preliminary experiments show the accurate relationship between RF power and measured hydrogen negative ion density.
资助项目	National Natural Science Foundation of China[11675216] ; National Natural Science Foundation of China[11575240] ; National Key R&D Program of China[2017YFE300103] ; National Key R&D Program of China[2017YFE300503]
WOS关键词	DESIGN
WOS研究方向	Instruments & Instrumentation ; Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000505597900002
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/42909]
专题	合肥物质科学研究院_中科院固体物理研究所
通讯作者	Liang, Lizhen
作者单位	Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Liang, Lizhen,Hu, Chundong,Yan, Jingyang,et al. Preliminary result of cavity ring-down spectroscopy system for radio frequency negative ion source test facility[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2019,90.
APA	Liang, Lizhen,Hu, Chundong,Yan, Jingyang,Zhao, Yuanzhe,&Xie, Yahong.(2019).Preliminary result of cavity ring-down spectroscopy system for radio frequency negative ion source test facility.REVIEW OF SCIENTIFIC INSTRUMENTS,90.
MLA	Liang, Lizhen,et al."Preliminary result of cavity ring-down spectroscopy system for radio frequency negative ion source test facility".REVIEW OF SCIENTIFIC INSTRUMENTS 90(2019).