Integration and testing of the DESI multi-object spectrograph: performance tests and results for the first unit out of ten
Integration and testing of the DESI multi-object spectrograph: performance tests and results for the first unit out of ten
复制标题
DESI 多目标摄谱仪的集成和测试：十台中第一台的性能测试和结果
DOI：
10.1117/12.2311996
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发表时间：
2018
影响因子：
3.5
通讯作者：
A. Secroun
中科院分区：
文献类型：
--
作者：
S. Perruchot;J. Guy;L. Le Guillou;P. Blanc;S. Ronayette;X. Régal;G. Castagnoli;A. Le Van Suu;E. Jullo;J. Cuby;P. Ghislain;P. Repain;A. Ealet;S. Escoffier;K. Honscheid;Ann Elliot;P. Jelinsky;S. Karkar;E. Sepúlveda;P. Carton;C. Magneville;M. Cousinou;D. Brooks;G. Tarlé;A. Secroun
暗能量光谱仪（DESI）正在建造中，它将使用重子声学振荡技术来测量宇宙的膨胀历史。在实验期间，将测量超过14000 deg²的3500万个星系和类星体的光谱。KPNO Mayall望远镜的新主焦点校正器将为5000个光纤定位器提供光线。这些光纤依次为10台宽带光谱仪提供信号。由艾克斯-马赛大学（AMU）和法国国家科学研究中心实验室（LAM、OHP和CPPM）组成的联盟，以及LPNHE（法国国家科学研究中心、皮埃尔和玛丽大学和巴黎狄德罗大学）和位于法国佩尔蒂的WINLIGHT系统公司，负责集成和验证全光谱仪的性能要求。这包括低温恒温器、百叶窗和其他机制。该系列10台摄谱仪中的第一台已经过全面测试，并验证了以下项目的性能要求：焦点、图像质量、杂散光、稳定性、探测器特性和吞吐量。我们目前的实验装置，测试程序和结果。
The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 deg² will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. A consortium of Aix-Marseille University (AMU) and CNRS laboratories (LAM, OHP and CPPM) together with LPNHE (CNRS, Universities Pierre et Marie Curie and Paris-Diderot) and the WINLIGHT Systems company based in Pertuis (France), are in charge of integrating and validating the performance requirements of the full spectrographs. This includes the cryostats, shutters and other mechanisms. The first spectrograph of the series of ten has been fully tested and the performance requirements verified for the following items: focus, image quality, straylight, stability, detector properties and throughput. We present the experimental setup, the test procedures and the results.