The Marshall Grazing Incidence X-ray Spectrograph (MaGIXS)

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.

[1]  K. Tanaka,et al.  High-resolution solar flare x-ray spectra obtained with rotating spectrometers on the Hinotori satellite , 1982 .

[2]  Hirohisa Hara,et al.  Chromospheric Lyman-alpha spectro-polarimeter (CLASP) , 2012, Other Conferences.

[3]  Tadayuki Takahashi,et al.  The Focusing Optics X-ray Solar Imager (FOXSI) , 2011, Optical Engineering + Applications.

[4]  R. J. Speer,et al.  Rocket spectrogram of a solar flare in the 10-100 A region , 1985 .

[5]  Peter R. Young,et al.  CHIANTI - an atomic database for emission lines. IX. Ionization rates, recombination rates, ionization equilibria for the elements hydrogen through zinc and updated atomic data , 2009 .

[6]  J. L. Culhane,et al.  The soft X-ray polychromator for the Solar Maximum Mission , 1980 .

[7]  Tetsuya Watanabe,et al.  The Bragg Crystal Spectrometer for SOLAR-A , 1991 .

[8]  S. L. O'Dell,et al.  Development of mirror modules for the ART-XC instrument aboard the Spectrum-Roentgen-Gamma mission , 2013, Optics & Photonics - Optical Engineering + Applications.

[9]  E. Landi,et al.  CHIANTI—An Atomic Database for Emission Lines. VIII. Comparison with Solar Flare Spectra from the Solar Maximum Mission Flat Crystal Spectrometer , 2006 .

[10]  Paul E. Glenn.  Centroid detector assembly for the AXAF-I alignment test system , 1995, Optics & Photonics.

[11]  B. L. Henke,et al.  X-Ray Interactions: Photoabsorption, Scattering, Transmission, and Reflection at E = 50-30,000 eV, Z = 1-92 , 1993 .

[12]  Tadayuki Takahashi,et al.  The focusing optics x-ray solar imager (FOXSI): instrument and first flight , 2013, Optics & Photonics - Optical Engineering + Applications.

[13]  Ken Kobayashi,et al.  Stigmatic grazing-incidence x-ray spectrograph for solar coronal observations , 2010, Astronomical Telescopes + Instrumentation.