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Proceedings Paper

Stigmatic grazing-incidence x-ray spectrograph for solar coronal observations
Author(s): Ken Kobayashi; Jonathan Cirtain; Leon Golub; Kelly Korreck; Peter Cheimets; Edward Hertz; David Caldwell
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Paper Abstract

We present the design for a stigmatic grazing incidence X-ray spectrograph designed for solar coronal observations. The spectrograph is composed of a slit, a pair of paraboloid mirrors and a plano varied-line-space grating. All reflective surfaces of the spectrograph operate at an angle of incidence of 88 degrees, and covers a wavelength range of 0.6 to 2.4nm (0.5 to 2.0keV). The design achieves 1.5pm spectral resolution and 15 μm spatial resolution over a 2.5mmlong slit. The current spectrograph design is intended for a sounding rocket experiment, and designed to fit inside a NASA sounding rocket payload behind a 1.1m focal length Wolter Type-1 telescope. This combination will have a 2.5arcsec spatial resolution and a 8 arcminute slit length. We are currently fabricating a laboratory prototype of the spectrograph to demonstrate the performance and establish the alignment procedures for a flight model.

Paper Details

Date Published: 29 July 2010
PDF: 7 pages
Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 773233 (29 July 2010); doi: 10.1117/12.856793
Show Author Affiliations
Ken Kobayashi, The Univ. of Alabama in Huntsville (United States)
Jonathan Cirtain, NASA Marshall Space Flight Ctr. (United States)
Leon Golub, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Kelly Korreck, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Peter Cheimets, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Edward Hertz, Harvard-Smithsonian Ctr. for Astrophysics (United States)
David Caldwell, Harvard-Smithsonian Ctr. for Astrophysics (United States)


Published in SPIE Proceedings Vol. 7732:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray
Monique Arnaud; Stephen S. Murray; Tadayuki Takahashi, Editor(s)

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