6 October 2011 The Marshall Grazing Incidence X-ray Spectrograph (MaGIXS)
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Abstract
The Marshall Grazing Incidence X-ray Spectrograph (MaGIXS) is a proposed sounding rocket experiment designed to observe spatially resolved soft X-ray spectra of the solar corona for the first time. The instrument is a purely grazing-incidence design, consisting of aWolter Type-1 sector telescope and a slit spectrograph. The telescope mirror is a monolithic Zerodur mirror with both the parabolic and hyperbolic surfaces. The spectrograph comprises a pair of paraboloid mirrors acting as a collimator and reimaging mirror, and a planar varied-line-space grating, with reflective surfaces operate at a graze angle of 2 degrees. This produces a flat spectrum on a detector covering a wavelength range of 6-24Å (0.5-1.2 keV). The design achieves 20 mÅ spectral resolution (10 mÅ /pixel) and 5 arcsec spatial resolution (2.5 arcsec / pixel) over an 8-arcminute long slit. The spectrograph is currently being fabricated as a laboratory prototype. A flight candidate telescope mirror is also under development.
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Ken Kobayashi, Jonathan Cirtain, Leon Golub, Amy Winebarger, Edward Hertz, Peter Cheimets, David Caldwell, Kelly Korreck, Brian Robinson, Patrick Reardon, Thomas Kester, Charles Griffith, Mark Young, "The Marshall Grazing Incidence X-ray Spectrograph (MaGIXS)", Proc. SPIE 8147, Optics for EUV, X-Ray, and Gamma-Ray Astronomy V, 81471M (6 October 2011); doi: 10.1117/12.894071; https://doi.org/10.1117/12.894071
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