A multipurpose fiber-fed VPHG spectrograph for LAMOST | |
Yongtian Zhu ; Zhongwen Hu ; Qingfeng Zhang ; Lei Wang ; Jianing Wang | |
2008-06-28 | |
会议日期 | 2006-5-24 |
会议地点 | Orlando, FL |
关键词 | Instrumentation spectrograph volume phase holographic gratings |
卷号 | 6269 |
期号 | 6269 |
页码 | Vol.6269 0M-1-9 |
英文摘要 |
A multipurpose fiber-fed double-beam Schmidt spectrograph using VPHG (volume phase holographic gratings) is under construction for LAMOST (The Large Sky Area Multi-Object Fiber Spectroscopic Telescope). There are 16 such spectrographs (hereafter referred to as LRSs) for the project. The spectrographs are designed with wavelength coverage from 370 to 900 nm, with spectral resolutions of 1000-10000, and with multi-object capability over a 5 degrees field of view. Each spectrograph will be accommodating 250 fibers of 320 microns diameter (corresponding 3.3 arcsecs). The
200 mm diameter collimated beam is split into two separate channels. The blue channel is optimized for 370nm-590nm, and the red channel for 570nm-900nm. The LRS can work in several varied resolution modes. The optical design and performance is described. The spectrograph is of simple design with moderate image quality and good throughput. Progress on the construction of LRS is reported as well. |
会议主办者 | The International Society for Optical Engineering |
会议录 | Ground-based and Airborne Instrumentation for Astronomy
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会议录出版者 | SPIE |
学科主题 | 郭守敬望远镜(LAMOST) ; 天文光谱仪 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/434] ![]() |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_天文光谱和高分辨成像技术研究室_会议论文 |
推荐引用方式 GB/T 7714 | Yongtian Zhu,Zhongwen Hu,Qingfeng Zhang,et al. A multipurpose fiber-fed VPHG spectrograph for LAMOST[C]. 见:. Orlando, FL. 2006-5-24. |
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