LUCIFER: status and results of the hardware testing

Walter Seifert; Werner Laun; Michael Lehmitz; Holger Mandel; Andreas Schuetze; Andreas Seltmann

doi:10.1117/12.551288

30 September 2004 LUCIFER: status and results of the hardware testing

Walter Seifert, Werner Laun, Michael Lehmitz, Holger Mandel, Andreas Schuetze, Andreas Seltmann

Proceedings Volume 5492, Ground-based Instrumentation for Astronomy; (2004) https://doi.org/10.1117/12.551288
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

LUCIFER (LBT NIR-Spectroscopic Utility with Camera and Integral-Field Unit for Extragalactic Research) is a NIR spectrograph and imager (wavelength range 0.9 to 2.5 micron) for the Large Binocular Telescope (LBT) on Mt. Graham, Arizona. It is built by a consortium of five German institutes and will be one of the first light instruments for the LBT. Later, a second copy for the second mirror of the telescope will follow. Both instruments will be mounted at the bent Gregorian foci of the two individual telescope mirrors. The instrument is equipped with three exchangeable cameras for imaging and spectroscopy: two of them are optimized for seeing-limited conditions, the third camera for the diffraction-limited case with the LBT adaptive secondary mirror working. The spectral resolution will allow for OH suppression. Up to 33 exchangeable masks will be available for longslit and multi-object spectroscopy (MOS) over the full field of view (FOV). The detector will be a Rockwell HAWAII-2 HgCdTe-array. Extensive tests were done for all the electro-mechanical functions. Those include the grating selection and the grating tilt unit and the drive for the fold mirror to compensate for image movement due to flexure. Furthermore several optical and opto-mechanical units were tested. The procedures and results of the tests are presented in detail and compared with the specifications.

Citation Download Citation

Walter Seifert, Werner Laun, Michael Lehmitz, Holger Mandel, Andreas Schuetze, and Andreas Seltmann "LUCIFER: status and results of the hardware testing", Proc. SPIE 5492, Ground-based Instrumentation for Astronomy, (30 September 2004); https://doi.org/10.1117/12.551288

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