Grazing incidence optics in extreme-ultraviolet astronomy

Details Grazing incidence optics in extreme-ultraviolet astronomy Grazing incidence optics in extreme-ultraviolet astronomy

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995spie.2517...90b&link_type=abstract

Proc. SPIE Vol. 2517, p. 90-96, X-Ray and EUV/FUV Spectroscopy and Polarimetry, Silvano Fineschi; Ed.

Physics

Optics

Scientific paper

The development of grazing incidence optics for extreme ultraviolet (EUV) astronomy occurred in a vastly different science-political environment than that of x-ray astronomy. X- ray astronomy had been proven as an extremely useful field of research, and in the environment of the 1960s funds were available for x-ray glass mirror systems costing tens of millions of dollars for a single telescope. In that era, EUV astronomy had not yet been demonstrated as a viable field, and indeed, the general belief was that only a few astronomical sources would be observable in this band. In that environment there was no hope of obtaining funding for EUV telescopes similar to those used in x-ray astronomy. As a consequence, an entirely different approach was employed in the development of EUV grazing incidence optics. The general approach was to attempt to make grazing incidence EUV optics out of metal. In the end, the best of these optics were as good as the x-ray glass optics developed for the Einstein Observatory, but with a cost of 1/20 of the Einstein mirrors. The various technologies developed in order to carry out EUV astronomy are discussed with an emphasis on EUV grazing incidence mirrors. A report of a few of the astronomical results obtained through the use of these optics is presented.

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