Proposed multilayer-grating designs for the Astrophysical Plasmadynamic Explorer (APEX): an EUV high-resolution spectroscopic SMEX

Michael P. Kowalski; Raymond G. Cruddace; Kent S. Wood; Daryl J. Yentis; Herbert Gursky; Troy W. Barbee Jr.; Gilbert G. Fritz; William R. Hunter; Klaus F. Heidemann; Martin A. Barstow

doi:10.1117/12.508553

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29 January 2004 Proposed multilayer-grating designs for the Astrophysical Plasmadynamic Explorer (APEX): an EUV high-resolution spectroscopic SMEX

Michael P. Kowalski, Raymond G. Cruddace, Kent S. Wood, Daryl J. Yentis, Herbert Gursky, Troy W. Barbee Jr., Gilbert G. Fritz, William R. Hunter, Klaus F. Heidemann, Martin A. Barstow

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Proceedings Volume 5168, Optics for EUV, X-Ray, and Gamma-Ray Astronomy; (2004) https://doi.org/10.1117/12.508553
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

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.

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Michael P. Kowalski, Raymond G. Cruddace, Kent S. Wood, Daryl J. Yentis, Herbert Gursky, Troy W. Barbee Jr., Gilbert G. Fritz, William R. Hunter, Klaus F. Heidemann, and Martin A. Barstow "Proposed multilayer-grating designs for the Astrophysical Plasmadynamic Explorer (APEX): an EUV high-resolution spectroscopic SMEX", Proc. SPIE 5168, Optics for EUV, X-Ray, and Gamma-Ray Astronomy, (29 January 2004); https://doi.org/10.1117/12.508553

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