首页> 外文会议>Conference on Optical Design and Engineering; Sep 30-Oct 3, 2003; St.Etienne, France >Slicing the Universe at affordable cost: The Quest for the MUSE Image Slicer
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Slicing the Universe at affordable cost: The Quest for the MUSE Image Slicer

机译:以可承受的成本对宇宙进行切片:MUSE Image Slicer的追求

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The introduction of Image Slicers in Astronomy has been growing rapidly in the recent years. These optical devices allow the simultaneous observation on the same detector matrix of two-dimensional sky maps and the spectral decomposition of light on all of their angular samples, therefore dramatically reducing the observation times and getting rid of the spectro-photometric variations of the atmosphere. Today the implementation of Image Slicers is planned on various ground and space telescopes, covering a spectral domain ranging from blue to mid-IR wavelengths. Among such different projects, we describe the Image Slicer of MUSE (Multi Unit Spectroscopic Explorer), a second-generation Integral-Field Spectrograph for the VLT combining a 1' x 1' Field of View with a spatial resolution of 0.2" and a spectral resolution of 3000. The most efficient principle of an Image Slicer consists in a combination of several different optical channels, each made of three mini-mirrors having different tilts and curvatures. After a brief presentation of the MUSE Image Slicer requirements, we will explain the followed logic in order to optimise the opto-mechanical design and cost of the Slicer : indeed one of MUSE peculiarity is the total number of its individual modules, that is 24. The realization of such series at an affordable cost actually is a design driver of the study. The communication also deals with the used optical design models, the expected performance, the candidate technologies for the manufacturing of all the components, and the future development of a prototype of this critical optical subsystem.
机译:近年来,在天文学中使用图像切片器的发展迅速。这些光学设备允许在同一探测器矩阵上同时观察二维天空图,并在所有角度样本上对光进行光谱分解,从而大大减少了观察时间并摆脱了大气的分光光度变化。如今,已计划在各种地面和太空望远镜上实施图像切片器,涵盖从蓝色到中红外波长的光谱范围。在这些不同的项目中,我们描述了MUSE(多单元光谱浏览器)的图像切片器,用于VLT的第二代积分场光谱仪,其结合了1'x 1'视场,0.2“空间分辨率和光谱分辨率为3000的图像切片机,最有效的原理是将多个不同的光学通道组合在一起,每个光学通道由三个具有不同倾斜度和曲率的微型镜组成。在简要介绍MUSE图像切片机的要求之后,我们将说明为了优化切片机的光机械设计和成本,遵循了逻辑:确实,MUSE的特色之一是其各个模块的总数,即24个。以可承受的成本实现这种系列实际上是设计驱动力。交流还涉及二手光学设计模型,预期性能,制造所有组件的候选技术以及未来的发展。此关键光学子系统的原型的t。

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