Physics – Optics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981xras.nasa..527s&link_type=abstract
In NASA. Goddard Space Flight Center X-ray Astronomy in the 1980's p 527-547 (SEE N82-26055 16-88)
Physics
Optics
2
Bragg Angle, Cosmic X Rays, Crystal Optics, Cylindrical Bodies, Focusing, X Ray Spectroscopy, Diffraction, Focal Plane Devices, High Resolution, Line Spectra, Readout, Spaceborne Astronomy, X Ray Telescopes
Scientific paper
A "stigmatic" focusing, Bragg crystal spectrometer was developed and used for high spectral resolution X-ray emission line diagnostics on hot laboratory plasmas. The concept be applied at the focal plane of an orbiting X-ray telescope where it offers several advantages over conventional spectrometers, i.e., mechanical simplicity, high resolving power and sensitivity, simultaneous measurement of an extended segment of spectrum, and good imaging properties. The instrument features a simple, unambiguous, non-scanning spectrum readout that is not adversely affected by either spacecraft pointing error or source extent. The performance of the instrument is estimated in the context of the Advanced X-Ray Astrophysical Facility mission.
Schnopper Herbert W.
Taylor Peter O.
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