From Event: SPIE Optical Engineering + Applications, 2017
Silicon Pore Optics (SPO), developed at cosine with the European Space Agency (ESA) and several academic and industrial partners, provides lightweight, yet stiff, high-resolution x-ray optics. This technology enables ATHENA to reach an unprecedentedly large effective area in the 0.2 - 12 keV band with an angular resolution better than 5''. After developing the technology for 50 m and 20 m focal length, this year has witnessed the first 12 m focal length mirror modules being produced. The technology development is also gaining momentum with three different radii under study: mirror modules for the inner radii (Rmin = 250 mm), outer radii (Rmax = 1500 mm) and middle radii (Rmid = 737 mm) are being developed in parallel.
Maximilien J. Collon, Giuseppe Vacanti, Nicolas M. Barrière, Boris Landgraf, Ramses Günther, Mark Vervest, Roy van der Hoeven, Danielle Dekker, Abdel Chatbi, David Girou, Jessica Sforzini, Marco W. Beijersbergen, Marcos Bavdaz, Eric Wille, Sebastiaan Fransen, Brian Shortt, Jeroen Haneveld, Arenda Koelewijn, Karin Booysen, Maurice Wijnperle, Coen van Baren, Alexander Eigenraam, Peter Müller, Michael Krumrey, Vadim Burwitz, Giovanni Pareschi, Sonny Massahi, Finn E. Christensen, Desirée Della Monica Ferreira, Giuseppe Valsecchi, Paul Oliver, Ian Checquer, Kevin Ball, and Karl-Heinz Zuknik, "Development of ATHENA mirror modules," Proc. SPIE 10399, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII, 103990C (Presented at SPIE Optical Engineering + Applications: August 08, 2017; Published: 29 August 2017); https://doi.org/10.1117/12.2273704.
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