High-resolution iron-line spectroscopy

Details High-resolution iron-line spectroscopy High-resolution iron-line spectroscopy

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981xras.nasa..497g&link_type=abstract

In NASA. Goddard Space Flight Center X-ray Astronomy in the 1980's p 497-522 (SEE N82-26055 16-88)

Physics

Optics

Crystal Optics, Emission Spectra, High Resolution, Iron, Line Spectra, X Ray Astronomy, Diffraction, Focal Plane Devices, Plasma Diagnostics, Spacelab Payloads, Spatial Resolution, Spectrometers, Spheres

Scientific paper

Methods of resolving the iron lines, the most common X-ray emission lines in both galactic and extragalactic X-ray sources, are reviewed. A self-focussing crystal spectrometer is shown to be the most suitable instrument, and the optimum crystal geometry is spherical (Schnopper and Taylor 1980). The principles of operation of such a spherical crystal imaging spectrometer are examined and its sensitivity is shown to be two orders of magnitude better than a focal plane crystal spectrometer on AXAF. A Spacelab version of this payload would be very cost-effective.

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