An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak

doi:10.1016/j.nima.2021.165545

	An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak
	Xu, Zong 1,7; Zhang, Ling 8; Cheng, Yunxin 6,8; Morita, Shigeru 5; Li, Lei 6,8; Zhang, Wenmin 8; Zhang, Fengling 8; Zhao, Zihang 4; Zhou, Tianfu 8; Wu, Zhenwei 8
刊名	NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
	2021-09-11
卷号	1010
关键词	EUV spectrometer Tungsten spectra High spectral resolution Fast-time response EAST
ISSN号	0168-9002
DOI	10.1016/j.nima.2021.165545
通讯作者	Zhang, Ling(zhangling@ipp.ac.cn)
英文摘要	A newly developed flat-field extreme ultraviolet (EUV) spectrometer working at 10-130 angstrom wavelength range with high spectral resolution and fast-time response has been developed to observe line emissions from highly ionized tungsten ions in the Experimental Advanced Superconducting Tokamak (EAST). This flat-field EUV spectrometer is equipped with a laminar-type varied-line-spacing (VLS) concave holographic grating (2400 grooves/mm at grating center) fixed at an angle of incidence of 88.6 degrees, and a back-illuminated charge-coupled device (CCD) with pixel numbers of 1024 x 255 (26 x 26 mu m(2)/pixel). The CCD is routinely operated at 5 ms per frame with full vertical binning (FVB) mode. An excellently high spectral resolution of Delta lambda(0) = 4-6 pixels (full width at foot position of spectral line profile), which corresponds to full width of half maximum (FWHM) of 0.1 angstrom at 20 angstrom, has been obtained by carefully adjusting angles and positions of the grating and CCD. Thus, the line identification of complicated tungsten spectra became possible, when a precise wavelength calibration was done. Typical tungsten spectra are recorded at low (T-e = 1.0 keV) and high (T-e = 2.6 keV) electron temperatures. Tungsten unresolved transition arrays (W-UTA) existing at wavelength ranges of 15-35 and 45-65 angstrom were preliminarily identified as line emissions from W24+-W33+ and W27+-W45+ ions, respectively, by referring to previous experimental results and National Institute of Standards and Technology (NIST) database. Developing a set of analytical computer programs, line spectra observed with the EUV spectrometer have been automatically identified after data acquisition basically for all discharges during daily EAST experiment.
资助项目	National Key R&D Program of China[2019YFE030403] ; National Key R&D Program of China[2018YFE0311100] ; National Key R&D Program of China[2017YFE0300 402] ; National Key R&D Program of China[2017YFE0301300] ; National Natural Science Foundation of China[11775269] ; National Natural Science Foundation of China[11905146] ; National Natural Science Foundation of China[11805133] ; National Natural Science Foundation of China[U1832126] ; National Natural Science Foundation of China[11704076] ; National Natural Science Foundation of China[U1732140] ; Hefei Science Center Highend User Development Fund Project, China[2019HSC-UE014] ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI)[2020VMA0001] ; Shenzhen Clean Energy Research Institute, China
WOS关键词	IONIZED TUNGSTEN ; RADIATION ; RANGE
WOS研究方向	Instruments & Instrumentation ; Nuclear Science & Technology ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000672426800007
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Hefei Science Center Highend User Development Fund Project, China ; Chinese Academy of Sciences President's International Fellowship Initiative (PIFI) ; Shenzhen Clean Energy Research Institute, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/123568]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Ling
作者单位	1.Shenzhen Univ, Coll Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov, Shenzhen 518060, Peoples R China 2.Minist Educ, Key Lab Appl Ion Beam Phys, Shanghai 200433, Peoples R China 3.Northwest Normal Univ, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China 4.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China 5.Natl Inst Fus Sci, Toki, Gifu 5095259, Japan 6.Univ Sci & Technol China, Hefei 230031, Peoples R China 7.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 8.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zong,Zhang, Ling,Cheng, Yunxin,et al. An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,2021,1010.
APA	Xu, Zong.,Zhang, Ling.,Cheng, Yunxin.,Morita, Shigeru.,Li, Lei.,...&Liu, Haiqing.(2021).An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT,1010.
MLA	Xu, Zong,et al."An extreme ultraviolet spectrometer working at 10-130 angstrom for tungsten spectra observation with high spectral resolution and fast-time response in Experimental Advanced Superconducting Tokamak".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 1010(2021).