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Proceedings Paper

FIFI-LS diffraction grating vibration on SOFIA
Author(s): Felix Rebell; Simon Beckmann; Aaron Bryant; Sebastian Colditz; Christian Fischer; Fabio Fumi; Rainer Hoenle; Norbert Geis; Christof Iserlohe; Randolf Klein; Alfred Krabbe; Leslie Looney; Albrecht Poglitsch; Walfried Raab; Maureen Savage
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Paper Abstract

FIFI-LS (the Field Imaging Far Infrared Line Spectrometer for SOFIA) was successfully commissioned in 2014 during six flights on SOFIA. The observed wavelengths are set by rotating reflective gratings. In flight these gratings and their rotating mechanisms are exposed to vibrations. To quantify these vibrations, an acceleration sensor was placed on the exterior of the instrument. Simultaneously, the angle sensor of the grating was read out to analyze the movement of the grating. Based on this data, lab measurements were conducted to evaluate the effect of the vibrations on the image quality of FIFI-LS. The submitted paper will present the measured data and show the results of the analysis.

Paper Details

Date Published: 9 August 2016
PDF: 14 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99082D (9 August 2016); doi: 10.1117/12.2231695
Show Author Affiliations
Felix Rebell, Univ. of Stuttgart (Germany)
Simon Beckmann, Deutsches SOFIA Institut (Germany)
Aaron Bryant, Univ. of Stuttgart (Germany)
Sebastian Colditz, Deutsches SOFIA Institut (Germany)
Christian Fischer, Deutsches SOFIA Institut (Germany)
Fabio Fumi, Univ. of Stuttgart (Germany)
Rainer Hoenle, Univ. of Stuttgart (Germany)
Norbert Geis, Max-Planck-Institut für extraterrestrische Physik (Germany)
Christof Iserlohe, Deutsches SOFIA Institut (Germany)
Randolf Klein, SOFIA-USRA (United States)
NASA Ames Research Ctr. (United States)
Alfred Krabbe, Univ. of Stuttgart (Germany)
Deutsches SOFIA Institut (Germany)
Leslie Looney, Univ. of Illinois (United States)
Albrecht Poglitsch, Max-Planck-Institut für extraterrestrische Physik (Germany)
Walfried Raab, European Space Research and Technology Ctr. (Netherlands)
Maureen Savage, SOFIA-USRA (United States)
NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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