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- Title
Design and Performance of the ICON EUV Spectrograph.
- Authors
Sirk, Martin; Korpela, Eric; Ishikawa, Yuzo; Edelstein, Jerry; Wishnow, Edward; Smith, Christopher; McCauley, Jeremy; McPhate, Jason; Curtis, James; Curtis, Travis; Gibson, Steven; Jelinsky, Sharon; Lynn, Jeffrey; Marckwordt, Mario; Miller, Nathan; Raffanti, Michael; Shourt, William; Stephan, Andrew; Immel, Thomas
- 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 O ii emission lines at 61.6 nm and 83.4 nm. Its design, using a single optical element, permits a 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.
- Subjects
SPECTROGRAPHS; SPECTROMETERS; ULTRAVIOLET cameras; ULTRAVIOLET astronomy; DISPERSION (Atmospheric chemistry)
- Publication
Space Science Reviews, 2017, Vol 212, Issue 1/2, p631
- ISSN
0038-6308
- Publication type
Article
- DOI
10.1007/s11214-017-0384-2