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INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY
Rao, Changhui; Zhu, Lei; Rao, Xuejun; Zhang, Lanqiang; Bao, Hua; Kong, Lin; Guo, Youming; Zhong, Libo; Ma, Xue' An; Li, Mei; Wang, Cheng; Zhang, Xiaojun; Fan, Xinlong; Chen, Donghong; Feng, Zhongyi; Gu, Naiting; Liu, Yangyi
Source PublicationASTROPHYSICAL JOURNAL
Volume833Issue:2Pages:210
2016
Language英语
ISSN0004-637X
DOI10.3847/1538-4357/833/2/210
SubtypeJ
AbstractA high-order solar adaptive optics (AO) system including a fine tracking loop and a high-order wavefront correction loop has been installed at the 1 m New Vacuum Solar Telescope of the Fuxian Solar Observatory, in routine operation since 2016. The high-order wavefront correction loop consists of a deformable mirror with 151 actuators, a correlating Shack-Hartmann wavefront sensor with 102 subapertures of which the Absolute Difference Square Algorithm is used to extract the gradients, and a custom-built real-time controller based on a Field-Programmable Gate Array (FPGA) and multi-core Digital Signal Processor (DSP). The frame rate of the wavefront sensor is up to 3500 Hz and this is, to our knowledge, the fastest solar AO system. This AO system can work with a Fried parameter r(0), at the 500 nm wavelength, of larger than 3 cm. The first 65 modes of the Zernike aberrations can be efficiently corrected and the Strehl ratio of the corrected TiO image for the solar pore is superior to 0.75 with the Fried parameter r(0) larger than 10 cm. In this paper, the design of the system is described, and high-resolution solar observational images are presented. Furthermore, the performances of the AO system are evaluated according to the data recorded by the real-time controller.
KeywordInstrumentation: Adaptive Optics Instrumentation: High Angular Resolution Sun: Photosphere Techniques: High Angular Resolution Techniques: Image Processing
Indexed BySCI
WOS IDWOS:000391169600085
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8422
Collection自适应光学技术研究室(八室)
Affiliation1.[Rao, Changhui
2.Zhu, Lei
3.Rao, Xuejun
4.Zhang, Lanqiang
5.Bao, Hua
6.Kong, Lin
7.Guo, Youming
8.Zhong, Libo
9.Ma, Xue' An
10.Li, Mei
11.Wang, Cheng
12.Zhang, Xiaojun
13.Fan, Xinlong
14.Chen, Donghong
15.Feng, Zhongyi
16.Gu, Naiting
17.Liu, Yangyi] Chinese Acad Sci, Key Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China
18.[Rao, Changhui
19.Zhu, Lei
20.Rao, Xuejun
21.Zhang, Lanqiang
22.Bao, Hua
23.Kong, Lin
24.Guo, Youming
25.Zhong, Libo
26.Ma, Xue' An
27.Li, Mei
28.Wang, Cheng
29.Zhang, Xiaojun
30.Fan, Xinlong
31.Chen, Donghong
32.Feng, Zhongyi
33.Gu, Naiting
34.Liu, Yangyi] Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China
35.[Kong, Lin
36.Liu, Yangyi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Rao, Changhui,Zhu, Lei,Rao, Xuejun,et al. INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY[J]. ASTROPHYSICAL JOURNAL,2016,833(2):210.
APA Rao, Changhui.,Zhu, Lei.,Rao, Xuejun.,Zhang, Lanqiang.,Bao, Hua.,...&Liu, Yangyi.(2016).INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY.ASTROPHYSICAL JOURNAL,833(2),210.
MLA Rao, Changhui,et al."INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY".ASTROPHYSICAL JOURNAL 833.2(2016):210.
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