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Proceedings Paper

Multilayer mirrors and filters for imaging the earth's inner magnetosphere
Author(s): Dean W. Schulze; Bill R. Sandel; A. Lyle Broadfoot
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Paper Abstract

Remote sensing of resonantly scattered 304 angstrom sunlight by He+ in the earth's plasmasphere would provide a structural map of the plasmasphere. The primary concern for such an imaging system is the extraction of the 304 angstrom signal out of a background of other wavelengths of much higher intensities. The capability of multilayer mirrors and thin film filters for this task are analyzed and some guidelines for the design of these optical elements for space imaging applications are presented. Analysis shows that multilayer mirrors require the use of a filter to remove longer wavelength background emissions and they do not provide uniform reflectance over the desired 30 deg field of view. An effective and simpler alternative for this application may be a Si coated Te transmission filter without multilayer mirrors.

Paper Details

Date Published: 1 October 1991
PDF: 10 pages
Proc. SPIE 1549, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II, (1 October 1991); doi: 10.1117/12.48359
Show Author Affiliations
Dean W. Schulze, Univ. of Arizona (United States)
Bill R. Sandel, Univ. of Arizona (United States)
A. Lyle Broadfoot, Univ. of Arizona (United States)

Published in SPIE Proceedings Vol. 1549:
EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy II
Oswald H. W. Siegmund; Richard E. Rothschild, Editor(s)

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