ATHENA optimized coating design

Desiree D. M Ferreira; Finn E Christensen; Anders C Jakobsen; Niels J. Westergaard; Brian Shortt

doi:10.1117/12.925694

17 September 2012 ATHENA optimized coating design

Desiree D. M Ferreira, Finn E Christensen, Anders C Jakobsen, Niels J. Westergaard, Brian Shortt

Proceedings Volume 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray; 84435L (2012) https://doi.org/10.1117/12.925694
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

The optimization of coating design for the ATHENA mission si described and the possibility of increasing the telescope effective area in the range between 0.1 and 10 keV is investigated. An independent computation of the on-axis effective area based on the mirror design of ATHENA is performed in order to review the current coating baseline. The performance of several material combinations, considering a simple bi-layer, simple multilayer and linear graded multilayer coatings are tested and simulation of the mirror performance considering both the optimized coating design and the coating baseline including on- and off-axis effective area curves are presented. We find that the use of linear graded multilayers can increas by 37% the integraed effective area of ATHENA in the energy range between 0.1 keV and 15keV.

Citation Download Citation

Desiree D. M Ferreira, Finn E Christensen, Anders C Jakobsen, Niels J. Westergaard, and Brian Shortt "ATHENA optimized coating design", Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 84435L (17 September 2012); https://doi.org/10.1117/12.925694

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