Number and Distribution of Fiducial Fibers in a Spectroscopic Survey Telescope

作     者：Shi-Peng Duan Zeng-Xiang Zhou Jia-Le Zuo Meng-Tao Li Zhi-Gang Liu Hong-Zhuan Hu Jian-Ping Wang Xiang-Qun Cui Yong Zhang Hao-Tong Zhang Shi-Peng Duan;Zeng-Xiang Zhou;Jia-Le Zuo;Meng-Tao Li;Zhi-Gang Liu;Hong-Zhuan Hu;Jian-Ping Wang;Xiang-Qun Cui;Yong Zhang;Hao-Tong Zhang

作者机构：Department of Precision Machinery and Precision InstrumentationUniversity of Science and Technology of ChinaHefei 230026China National Astronomical Observatories/Nanjing Institute of Astronomical Optics&TechnologyChinese Academy of ScienceNanjing 210042China CAS Key Laboratory of Astronomical Optics&TechnologyNanjing Institute of Astronomical Optics&TechnologyNanjing 210042China National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100012China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2022年第22卷第2期

页      面：108-117页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：Funding for the research was provided by Cui Xiangqun’s Academician Studio Guoshoujing Telescope(the Large Sky Area Multi-Object Fiber Spectroscopic Telescope,LAMOST)is a National Major Scientific Project built by the Chinese Academy of Sciences Funding for the project has been provided by the National Development and Reform Commission 

主　　题：instrumentation detectors-techniques image processing-methods data analysis-telescopes 

摘      要：To date,the Large Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST)has been in operation for 12 *** improve the telescope s astronomical observation accuracy,the original open-loop fiber positioning system of LAMOST is in urgent need of *** upgrade plan is to install several fiber view cameras(FVCs)around primary mirror B to build a closed-loop feedback control *** FVCs are 20 m from the focal *** reduce a series of errors when the cameras detect the positions of the optical fibers,we designed fiducial fibers on the focal surface to be fiducial points for the *** the number of fiducial fibers can improve the detection accuracy of the FVC system,but it will also certainly reduce the number of fiber positioners that can be used for ***,the focus of this paper is how to achieve the quantity and distribution that meet the requirements of system *** this paper,we introduce the necessity of using fiducial fibers,propose a method for selecting their number and present several methods for assessing the uniformity of their ***,we implement particle swarm optimization to find the best distribution of fiducial fibers.