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题名:
First generation solar adaptive optics system for 1-m New Vacuum Solar Telescope at Fuxian Solar Observatory
作者: Rao, Chang-Hui1,2; Zhu, Lei1,2; Rao, Xue-Jun1,2; Zhang, Lan-Qiang1,2; Bao, Hua1,2; Ma, Xue-An1,2; Gu, Nai-Ting1,2; Guan, Chun-Lin1,2; Chen, Dong-Hong1,2; Wang, Cheng1,2; Lin, Jun3; Jin, Zen-Yu3; Liu, Zhong3
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2016-02-01
卷号: 16, 期号:2
关键词: adaptive optics ; high angular resolution ; sunspots ; granulation
DOI: 10.1088/1674-4527/16/2/023
文章类型: Article
英文摘要: The first generation solar adaptive optics (AO) system, which consists of a fine tracking loop with a tip-tilt mirror (TTM) and a correlation tracker, and a high-order correction loop with a 37-element deformable mirror (DM), a correlating Shack-Hartmann (SH) wavefront sensor (WFS) based on the absolute difference algorithm and a real time controller (RTC), has been developed and installed at the 1-m New Vacuum Solar Telescope (NVST) that is part of Fuxian Solar Observatory (FSO). Compared with the 37-element solar AO system developed for the 26-cm Solar Fine Structure Telescope, administered by Yunnan Astronomical Observatories, this AO system has two updates: one is the subaperture arrangement of the WFS changed from square to hexagon; the other is the high speed camera of the WFS and the corresponding real time controller. The WFS can be operated at a frame rate of 2100 Hz and the error correction bandwidth can exceed 100 Hz. After AO correction, the averaged residual image motion and the averaged RMS wavefront error are reduced to 0.06 '' and 45 nm, respectively. The results of on-sky testing observations demonstrate better contrast and finer structures of the images taken with AO than those without AO.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: FINE-STRUCTURE TELESCOPE
收录类别: SCI
项目资助者: National Natural Science Foundation of China(11178004)
语种: 英语
WOS记录号: WOS:000369252500003
ISSN号: 1674-4527
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3841
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China

Recommended Citation:
Rao, Chang-Hui,Zhu, Lei,Rao, Xue-Jun,et al. First generation solar adaptive optics system for 1-m New Vacuum Solar Telescope at Fuxian Solar Observatory[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(2).
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