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Conference paper

ATHENA optimized coating design

By Ferreira, Desiree Della Monica1,2; Christensen, Finn Erland1,2; Jakobsen, Anders Clemen1,2; Westergaard, Niels Jørgen Stenfeldt1,2; Shortt, Brian3

From

National Space Institute, Technical University of Denmark1

Astrophysics, National Space Institute, Technical University of Denmark2

European Space Agency - ESA3

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.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Language: English
Year: 2012
Proceedings: Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
ISSN: 1996756x and 0277786x
Types: Conference paper
DOI: 10.1117/12.925694
ORCIDs: Ferreira, Desiree Della Monica , Christensen, Finn Erland and Westergaard, Niels Jørgen Stenfeldt
Keywords

ATHENA mission Coating optimization Multilayers Ray-tracing X-rays

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