The Cold Spectrograph of AMBER, the Infrared Beam-combiner for the VLTI

机译：VLTI的红外合束器AMBER的冷光谱仪

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The instrumentation for VLT/VLTI facility of the European Southern Observatory at Paranal (Chile) includes the infrared beam-combiner called AMBER, that covers the near infrared bands up to 2.5μm. The cold spectrograph we describe is the AMBER subsystem responsible of wavelength analysis and several other functions, all of them performed by means of optics, analyzers, and mechanisms working at the temperature of liquid nitrogen boiling at atmospheric pressure. The cryo-mechanical design of the spectrograph we describe here used extensively the methods of finite element analysis and the laboratory tests validated this approach. The final optical quality we measured in the laboratory before shipping the instrument to Grenoble for integration (December 2002), is well inside the specification the AMBER staff assigned to the spectrograph. Simulations show that its total contribution to visibility loss of AMBER is less than 2%.

机译：位于帕拉纳尔（智利）的欧洲南方天文台的VLT / VLTI设施的仪器包括一个称为AMBER的红外合束器，它覆盖了高达2.5μm的近红外波段。我们描述的冷光谱仪是负责波长分析和其他功能的AMBER子系统，所有这些功能都是通过光学器件，分析仪和在常压下沸腾的液氮温度下工作的机制来执行的。我们在此描述的光谱仪的低温机械设计广泛使用了有限元分析方法，实验室测试验证了这种方法。在将仪器运送到格勒诺布尔进行集成之前（2002年12月），我们在实验室中测量的最终光学质量完全在AMBER人员指定给光谱仪的技术指标之内。仿真表明，其对AMBER可见度损失的总贡献小于2％。

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来源
《Conference on Cryogenic Optical Systems and Instruments X; Aug 6, 2003; San Diego, California, USA》|2003年|p.141-147|共7页
会议地点 San Diego CA(US);San Diego CA(US);San Diego CA(US)
作者
Franco Lisi; Sandro Gennari; Paolo Stefanini; Matteo Accardo; Simone Busoni; Debora Ferruzzi; Elisabetta Giani;
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作者单位

Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, I-50125 Firenze (Italy);

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会议组织
原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
关键词
astronomy; infrared; spectrograph; cryogenics; diamond-tooling; cold optics;

机译：天文学;红外;光谱仪;低温;金刚石工具;冷光学;

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4. The Cold Spectrograph of AMBER, the Infrared Beam-combiner for the VLTI [C] . Franco Lisi, Sandro Gennari, Paolo Stefanini, Society of Photo-Optical Instrumentation Engineers Conference on Cryogenic Optical Systems and Instruments . 2003

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The Cold Spectrograph of AMBER, the Infrared Beam-combiner for the VLTI

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