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28 August 1998Broadband multilayer gratings for a high-resolution EUV spectrograph
Sounding rocket observations of G191-B2B are planned for 1999 January over the bandpass 256-304 angstrom with a high resolution spectrograph. The optical system implements two diffraction gratings with broadband multilayer coatings in a Wadsworth mount. Since the spectral resolution of the experiment will be signal limited, preliminary reflectivity test on test gratings have been performed to determine how high the resolution might be.
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Kurt S. Gunderson, James C. Green, Erik Wilkinson, Troy W. Barbee Jr., "Broadband multilayer gratings for a high-resolution EUV spectrograph," Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); https://doi.org/10.1117/12.324503