The Near-Infrared Mapping Spectrometer (NIMS) is one of the four remote-sensing science instruments of the Galileo Orbiter scientific payload. The NIMS scientific objectives require operating the detector and optical subsystem at croygenic temperatures. The necessity of assembling, aligning, and testing the optics at room temperature and meeting design specifications at the cryogenic operating temperature (130 K) presented a set of challenging technical problems. A systematic approach to the development of athermalized mounts and supporting structures for optical components is described. A technique utilizing the visible spectral range and supplementary ray-trace information for alignment of an infrared instrument is presented. The optical subsystem point-spread function and spatial and spectral resolution were determined at room temperature using selected spectral and spatial targets. Based on thermal-distortion analyses of the structure and mounts, compensators ware selected, implemented, and verified at cryogenic temperatures. The selection of the compensator and the overall system performance were verified in a thermal vacuum chamber. Various external and internal calibration targets were used.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Near-infrared mapping spectrometer optical subsystem development and testing


    Additional title:

    Kurzwelliges Infrarotspektrometer fuer Kartographie: Entwicklung und Testen des optischen Teilsystems


    Contributors:

    Published in:

    Publication date :

    1983


    Size :

    12 Seiten, 19 Bilder, 2 Tabellen, 5 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Sentinel 5 instrument and UV1 spectrometer subsystem optical design and development

    Köhler, Jess / Jansen, Rik / Irizar, Juan et al. | British Library Conference Proceedings | 2021



    Cascade Distillation Subsystem Development Testing

    Lubman, A. / MacKnight, A. / Thomas, E. A. et al. | SAE | 2008



    Cascade Distillation Subsystem Development Testing

    Callahan, M.R. / Lubman, A. / MacKnight, A. et al. | British Library Conference Proceedings | 2008