Space Science Reviews

, Volume 212, Issue 1–2, pp 631–643 | Cite as

Design and Performance of the ICON EUV Spectrograph

  • Martin M. Sirk
  • Eric J. Korpela
  • Yuzo Ishikawa
  • Jerry Edelstein
  • Edward H. Wishnow
  • Christopher Smith
  • Jeremy McCauley
  • Jason B. McPhate
  • James Curtis
  • Travis Curtis
  • Steven R. Gibson
  • Sharon Jelinsky
  • Jeffrey A. Lynn
  • Mario Marckwordt
  • Nathan Miller
  • Michael Raffanti
  • William Van Shourt
  • Andrew W. Stephan
  • Thomas J. Immel
Article
Part of the following topical collections:
  1. The Ionospheric Connection Explorer (ICON) mission

Abstract

We present the design, implementation, and on-ground performance measurements of the Ionospheric Connection Explorer EUV spectrometer, ICON EUV, a wide field (\(17^{\circ}\times 12^{\circ}\)) extreme ultraviolet (EUV) imaging spectrograph designed to observe the lower ionosphere at tangent altitudes between 100 and 500 km. The primary targets of the spectrometer, which has a spectral range of 54–88 nm, are the Oii emission lines at 61.6 nm and 83.4 nm. Its design, using a single optical element, permits a 0 . 26 Open image in new window imaging resolution perpendicular to the spectral dispersion direction with a large (\(12^{\circ} \)) acceptance parallel to the dispersion direction while providing a slit-width dominated spectral resolution of \(R\sim25\) at 58.4 nm. Pre-flight calibration shows that the instrument has met all of the science performance requirements.

Keywords

Extreme ultraviolet Instrumentation Ionosphere Spectrograph 

Notes

Acknowledgements

We thank Carl Dobson for systems support, Steve Marker for keeping the vacuum facility operational, Christopher Scholz for technical support, Paul Turin and David Pankow who provided useful advice, and two anonymous referees who provided constructive critiques. ICON is supported by NASA’s Explorers Program through contracts NNG12FA45C and NNG12FA42I. This project utilizes data from the NIST Atomic Spectra Database. (NIST 2015) Special thanks to EUVester the pug who made boring meetings practically tolerable.

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Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  • Martin M. Sirk
    • 1
  • Eric J. Korpela
    • 1
  • Yuzo Ishikawa
    • 1
  • Jerry Edelstein
    • 1
  • Edward H. Wishnow
    • 1
  • Christopher Smith
    • 1
  • Jeremy McCauley
    • 1
  • Jason B. McPhate
    • 1
  • James Curtis
    • 1
  • Travis Curtis
    • 1
  • Steven R. Gibson
    • 1
  • Sharon Jelinsky
    • 2
  • Jeffrey A. Lynn
    • 1
  • Mario Marckwordt
    • 1
  • Nathan Miller
    • 1
  • Michael Raffanti
    • 1
  • William Van Shourt
    • 1
  • Andrew W. Stephan
    • 3
  • Thomas J. Immel
    • 1
  1. 1.Space Sciences LaboratoryUniversity of CaliforniaBerkeleyUSA
  2. 2.Lawrence Berkeley National LaboratoryBerkeleyUSA
  3. 3.Naval Research LaboratoryWashingtonUSA

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