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Proceedings Paper

Proposed multilayer-grating designs for the Astrophysical Plasmadynamic Explorer (APEX): an EUV high-resolution spectroscopic SMEX
Author(s): Michael P. Kowalski; Raymond G. Cruddace; Kent S. Wood; Daryl J. Yentis; Herbert Gursky; Troy W. Barbee; Gilbert G. Fritz; William R. Hunter; Klaus F. Heidemann; Martin A. Barstow
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Paper Abstract

APEX is a proposed mission for a Small Explorer (SMEX) satellite. The instrument is a suite of 8 near-normal incidence EUV spectrometers and is the outgrowth of 17 years of research at NRL on multilayer coatings and holographic ion-etched diffraction gratings. A prototype spectrometer has been flown successfully on a sounding rocket. We have examined different multilayer and gratings designs and produced a configuration optimized for the proposed science. APEX will achieve a peak effective area of at least 30-50 cm2 in the range 90-275 Å with resolution ~10,000, significant improvements on Chandra and EUVE.

Paper Details

Date Published: 29 January 2004
PDF: 10 pages
Proc. SPIE 5168, Optics for EUV, X-Ray, and Gamma-Ray Astronomy, (29 January 2004); doi: 10.1117/12.508553
Show Author Affiliations
Michael P. Kowalski, Naval Research Lab. (United States)
Raymond G. Cruddace, Naval Research Lab. (United States)
Kent S. Wood, Naval Research Lab. (United States)
Daryl J. Yentis, Naval Research Lab. (United States)
Herbert Gursky, Naval Research Lab. (United States)
Troy W. Barbee, Lawrence Livermore National Lab. (United States)
Gilbert G. Fritz, PRAXIS, Inc. (United States)
William R. Hunter, SFA, Inc. (United States)
Klaus F. Heidemann, Carl Zeiss (Germany)
Martin A. Barstow, Univ. of Leicester (United Kingdom)


Published in SPIE Proceedings Vol. 5168:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy
Oberto Citterio; Stephen L. O'Dell, Editor(s)

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