Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988spie..982..283d&link_type=abstract
IN: X-ray instrumentation in astronomy II; Proceedings of the Meeting, San Diego, CA, Aug. 15-17, 1988 (A89-40276 17-35). Bellin
Astronomy and Astrophysics
Astronomy
Gratings (Spectra), Optical Reflection, Satellite-Borne Instruments, X Ray Spectroscopy, Astronomical Spectroscopy, Diffraction Patterns, Efficiency, Exosat Satellite, Heao 2, Test Equipment
Scientific paper
A series of prototype blazed reflection gratings, designed for incorporation in a satellite-borne high-efficiency moderate-resolution astronomical X-ray spectrometer, have been tested for X-ray reflectivity in the relevant spectral orders. Mechanically ruled and ion-etched holographic master and replica gratings produced by various manufacturers have been measured at 8.34, 13.34, and 44.7 A. Near-theoretical performance is found for one ion-etched sample and for one of the mechanically ruled samples. The other mechanically ruled samples exhibit lower efficiency, which can in part be ascribed to imperfections in the groove profile.
Brinkman Albert C.
de Korte Piet A. J.
den Boggende Antonius J. F.
Kahn Steve M.
Videler P. H.
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