Silicon pore optics for future x-ray telescopes

Eric Wille, Marcos Bavdaz, Kotska Wallace, Brian Shortt, Maximilien Collon, Marcelo Ackermann, Ramses Günther, Mark Olde Riekerink, Arenda Koelewijn, Jeroen Haneveld, Coen van Baren, Markus Erhard, Dirk Kampf, Finn Erland Christensen, Michael Krumrey, Michael Freyberg, Vadim Burwitz

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Lightweight X-ray Wolter optics with a high angular resolution will enable the next generation of X-ray telescopes in space. The candidate mission ATHENA (Advanced Telescope for High Energy Astrophysics) required a mirror assembly of 1 m2 effective area (at 1 keV) and an angular resolution of 10 arcsec or better. These specifications can only be achieved with a novel technology like Silicon Pore Optics, which is being developed by ESA together with a consortium of European industry. Silicon Pore Optics are made of commercial Si wafers using process technology adapted from the semiconductor industry. We present the recent upgrades made to the manufacturing processes and equipment, ranging from the manufacture of single mirror plates towards complete focusing mirror modules mounted in flight configuration, and results from first vibration tests. The performance of the mirror modules is tested at X-ray facilities that were recently extended to measure optics at a focal distance up to 20 m.
Original languageEnglish
Title of host publicationInternational Conference on Space Optics — ICSO 2012
Number of pages6
PublisherSPIE - International Society for Optical Engineering
Publication date2017
Article number105640H
Publication statusPublished - 2017
EventInternational Conference on Space Optics 2012 - Ajaccio, Corsica, France
Duration: 9 Oct 201212 Oct 2012


ConferenceInternational Conference on Space Optics 2012
CityAjaccio, Corsica
SeriesProceedings of S P I E - International Society for Optical Engineering

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  • X-ray optics
  • X-ray astronomy
  • Pore optics
  • X-ray telescopes
  • X-ray testing
  • High energy astrophysics

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