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Proceedings Paper

Glancing Incidence Vs. Multilayer Coated Normal Incidence Mirrors For Euv Telescopes
Author(s): Geraldine Wright; Ritva A.M. Keski-Kuha
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Paper Abstract

EUV telescopes are typically Wolter Type telescopes. Made with glancing incidence mirrors. Recent developments in miltilayer caotings have opened up the possiblitity of using normal incidence mirrors in a Cassegrain configuration for EUV telescopes. Each of these approaches has advantages and disadvantages. Glancing incidence mirrors have a higher reflectivity with a braod bandwidth, but the sufaces are dificult to make. Normal incidence mirrors are easier to fabricate to the necessary sufcae requirments, but require caotings with acceptable reflectivity only in a narrow bandpass. In this paper we will discuss the technical tradeoffs of using glancing incidence and normal incidence mirrors for EUV telescopes.

Paper Details

Date Published: 28 July 1989
PDF: 11 pages
Proc. SPIE 1160, X-Ray/EUV Optics for Astronomy and Microscopy, (28 July 1989); doi: 10.1117/12.962653
Show Author Affiliations
Geraldine Wright, NASA/Goddard Space Flight Center (United States)
Ritva A.M. Keski-Kuha, NASA/Goddard Space Flight Center (United States)

Published in SPIE Proceedings Vol. 1160:
X-Ray/EUV Optics for Astronomy and Microscopy
Richard B. Hoover, Editor(s)

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