FIFI-LS diffraction grating vibration on SOFIA

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsLuc Simard, Christopher J. Evans, Hideki Takami
PublisherSPIE
ISBN (Electronic)9781510601956
DOIs
StatePublished - Jan 1 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: Jun 26 2016Jun 30 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9908
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherGround-Based and Airborne Instrumentation for Astronomy VI
CountryUnited Kingdom
CityEdinburgh
Period6/26/166/30/16

Keywords

  • Cryogenic mechanisms
  • FIFI LS
  • FIFI-LS
  • SOFIA
  • Vibration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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