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Proceedings Paper

Comparison of solar spectra from the Hinode extreme-ultraviolet imaging spectrometer (EIS) to preflight calibrations
Author(s): John Seely; Uri Feldman; Charles Brown; George Doschek; H. Hara
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Paper Abstract

The Extreme-Ultraviolet Imaging Spectrometer (EIS) on the Hinode satellite records high-resolution solar spectra in the 170-210 Å and 246-290 Å wavelength ranges. The EIS optics operate at near normal incidence and consist of an off-axis parabolic mirror, a toroidal diffraction grating, two CCD detectors, and two thin aluminum filters. To increase the normal incidence efficiency, high-reflectance multilayer interference coatings were deposited on the mirror and the grating. Prior to launch, each of the optical components was calibrated using synchrotron radiation, and the spectral and spatial resolution of the complete instrument were measured. In this paper, we compare the preflight calibrations with the first-light spectra recorded in space.

Paper Details

Date Published: 20 September 2007
PDF: 8 pages
Proc. SPIE 6688, Optics for EUV, X-Ray, and Gamma-Ray Astronomy III, 66880W (20 September 2007); doi: 10.1117/12.734592
Show Author Affiliations
John Seely, Naval Research Lab. (United States)
Uri Feldman, Naval Research Lab. (United States)
Charles Brown, Naval Research Lab. (United States)
George Doschek, Naval Research Lab. (United States)
H. Hara, National Astronomical Observatory of Japan (Japan)

Published in SPIE Proceedings Vol. 6688:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy III
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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