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Proceedings Paper

An Extreme Ultraviolet Telescope With No Soft X-Ray Response
Author(s): David S. Finley; Patrick Jelinsky; Stuart Bowyer; Roger F. Malina
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Paper Abstract

Grazing incidence telescopes are required for extreme ultraviolet astronomy (100 < < 1000 A) when observing at wavelengths shortward of 500A, and provide the highest throughput over the entire bandpass. Grazing incidence telescopes of conventional design have a substantial soft x-ray response as well as an extreme ultraviolet response. However, the available bandpass filters designed to transmit radiation longward of 400Å also transmit soft x-rays, which compromises the quality of the extreme ultraviolet data. We describe a grazing incidence telescope which is designed to suppress the soft x-ray throughput. This telescope incorporates a Wolter Schwarzschild Type II mirror with large graze angles. It retains all the desirable features of an extreme ultraviolet photometric survey telescope (high throughput, wide field of view, compactness) and, in addition, has no soft x-ray response. A telescope of this design will be flown on the Extreme Ultraviolet Explorer mission to make a survey of the sky at extreme ultraviolet wavelengths longer than 400Å.

Paper Details

Date Published: 20 August 1986
PDF: 5 pages
Proc. SPIE 0628, Advanced Technology Optical Telescopes III, (20 August 1986); doi: 10.1117/12.963526
Show Author Affiliations
David S. Finley, University of California (United States)
Patrick Jelinsky, University of California (United States)
Stuart Bowyer, University of California (United States)
Roger F. Malina, University of California (United States)


Published in SPIE Proceedings Vol. 0628:
Advanced Technology Optical Telescopes III
Lawrence D. Barr, Editor(s)

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