Silicon pore optics x-ray mirror development for the Athena telescope

Maximilien J. Collon*, Ljubiša Babic, Nicolas M. Barrière, Alex Bayerle, Luigi Castiglione, Noë Eenkhoorn, David Girou, Ramses Günther, Enrico Hauser, Yvette Jenkins, Boris Landgraf, Laurens Keek, Ben Okma, Gregorio Mendoza Serrano, Aniket Thete, Giuseppe Vacanti, Sjoerd Verhoeckx, Mark Vervest, Luc Voruz, Marco W. BeijersbergenMarcos Bavdaz, Eric Wille, Ivo Ferreira, Sebastiaan Fransen, Brian Shortt, Mark Olde Riekerink, Jeroen Haneveld, Arenda Koelewijn, Maurice Wijnperle, Jan Joost Lankwarden, Bart Schurink, Ronald Start, Coen Van Baren, Paul Hieltjes, Jan Willem Den Herder, Evelyn Handick, Michael Krumrey, Miranda Bradshaw, Vadim Burwitz, Sonny Massahi, Sara Svendsen, Desiree Della Monica Ferreira, Finn E. Christensen, Giuseppe Valsecchi, Geeta Kailla, William Mundon, Gavin Philips, Kevin Ball

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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    Abstract

    Athena, the largest space-based x-ray telescope to be flown by the European Space Agency, uses a new modular technology to assemble its 2.5 m diameter lens. The lens will consist of several hundreds of smaller x-ray lenslets, called mirror modules, which each consist of up to 76 stacked mirror pairs. Those mirror modules are arranged in circles in a large optics structure and will focus x-ray photons with an energy of 0.5 to 10 keV at a distance of 12 m onto the detectors of Athena. The point-spread function (PSF) of the optic shall achieve a half-energy width (HEW) of 5"at an energy of 1 keV, with an effective area of about 1.4 m2, corresponding to several hundred m2 of super-polished mirrors with a roughness of about 0.3 nm and a thickness of down to 110 μm. This paper will present the status of the technology and of the mass production capabilities, show latest performance results and discuss the next steps in the development.

    Original languageEnglish
    Title of host publicationProceedings of SPIE : Optics for EUV, X-Ray, and Gamma-Ray Astronomy X
    EditorsStephen L. O'Dell, Jessica A. Gaskin, Giovanni Pareschi
    Number of pages10
    PublisherSPIE - International Society for Optical Engineering
    Publication date2021
    Article number1182206
    ISBN (Electronic)9781510644823
    DOIs
    Publication statusPublished - 2021
    EventSPIE Optical Engineering + Applications 2021 - San Diego, United States
    Duration: 1 Aug 20215 Aug 2021

    Conference

    ConferenceSPIE Optical Engineering + Applications 2021
    Country/TerritoryUnited States
    CitySan Diego
    Period01/08/202105/08/2021
    SeriesProceedings of SPIE - The International Society for Optical Engineering
    Volume11822
    ISSN0277-786X

    Keywords

    • ARCUS
    • ATHENA
    • Pore optics
    • Silicon
    • SPO
    • Stack
    • Wafer
    • X-ray astronomy
    • X-ray optics
    • X-ray telescopes

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