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LINC-NIRVANA, integration of an interferometric and cryogenic camera: first verification results

机译:LINC-NIRVANA,集成了干涉仪和低温相机:首次验证结果

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LINC-NIRVANA is an interferometric imaging camera, which combines the two 8.4 m telescopes of the LargeBinocular Telescope (LBT). The instrument operates in the wavelength range from 1.1 μm to 2.4 μm, covering the J, H and K-bands. The beam combining camera (NIRCS) offers the possibility to achieve diffraction limited images with thespatial resolution of a 23 m telescope.This camera, which combines the AO corrected beams of both telescopes, is designed to deliver a 10 arcsec x 10 arcsecdiffraction limited field of view. The optics and cryo-mechanics are designed for operation at 60 Kelvin. Equipped with aHAWAII-2 detector mounted on a rotation stage in order to compensate for the sky rotation, a filter wheel and a dichroicwheel to split the light into the science channel and the fringe tracking channel, the camera is fairly large and complexand requires certain features to be considered and tested.The verification of all these components follows a challenging AIV plan. We describe this AIV phase from initialintegration of individual units to the final verification tests of the complete system. We report the performance of thecryogenic opto-mechanics and of the science detector. We also demonstrate the functionality of the cryo-mechanics andthe cryo-cooling at sub-system level, which represents the current state of integration. Finally, we discuss key elementsof our design and potential pros and cons.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
机译:LINC-NIRVANA是一款干涉成像相机,结合了大双筒望远镜(LBT)的两个8.4 m望远镜。该仪器在1.1μm至2.4μm的波长范围内工作,覆盖J,H和K波段。光束组合相机(NIRCS)提供了在23 m望远镜的空间分辨率下获得衍射极限图像的可能性。该相机结合了两个望远镜的AO校正光束,旨在提供10 arcsec x 10 arcsec衍射极限场。看法。光学和低温机械设计用于在60开氏温度下运行。该摄像机配备了一个HAWAII-2检测器,该检测器安装在旋转平台上以补偿天空的旋转,并具有滤光轮和二向色轮将光分成科学通道和边缘跟踪通道,该摄像头相当大且复杂,需要某些功能所有这些组成部分的验证均遵循具有挑战性的AIV计划。我们描述了从单个单元的初始集成到整个系统的最终验证测试的AIV阶段。我们报告了低温光机械和科学探测器的性能。我们还在子系统级别演示了低温机械和低温冷却的功能,这些功能代表了集成的当前状态。最后,我们讨论设计的关键要素以及潜在的利弊。©(2012)COPYRIGHT光电仪器工程师协会(SPIE)。摘要的下载仅允许个人使用。

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