Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apopt..24.2987m&link_type=abstract
Applied Optics (ISSN 0003-6935), vol. 24, Sept. 15, 1985, p. 2987-2995.
Astronomy and Astrophysics
Astronomy
3
Astronomical Spectroscopy, Gratings (Spectra), High Resolution, Spectrometers, Ultraviolet Astronomy, X Ray Astronomy, Grazing Incidence Telescopes, Mirrors, Point Sources, Spectral Resolution
Scientific paper
The continued maturation of X-ray and EUV astronomy has created a requirement for high-resolution spectroscopy to resolve spectral features and measure line profiles and Doppler shifts. The authors consider the familiar fixed-grating spectrometer (Rowland configuration) operating at grazing incidence behind the focus of a grazing-incidence telescope. By optimizing the grating shape and grating-detector geometry, they find that a peak resolving power near 104 and greater should be achievable in the 50 - 500-Å band. An impotant innovation to the standard configuration is the addition of an elliptical mirror. The optimization technique used is adaptable to other geometries as well as other applications in which a fixed grating is desired.
Cruddace Ray G.
Gursky Herbert
Meekins John F.
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