| Zugriffsnummer | 17814 |
| Dokumenttyp | Konferenzartikel |
| Sprache | Englisch |
| Titel | Development of modular high-performance pore optics for the XEUS X-ray telescope |
| Autor(in); Institution |
Kraft, S.; cosine Research B.V., Leiden, THE NETHERLANDS
Collon, M.; cosine Research B.V., Leiden, THE NETHERLANDS
Guenther, R.; cosine Research B.V., Leiden, THE NETHERLANDS
Beijersbergen, M. W.; cosine Research B.V., Leiden, THE NETHERLANDS
Bavdaz, M.; European Space Agency ESTEC, Science Payload and Advanced Concepts Office, Noordwijk, THE NETHERLANDS
Lumb, D. H.; European Space Agency ESTEC, Science Payload and Advanced Concepts Office, Noordwijk, THE NETHERLANDS
Wallace, K.; European Space Agency ESTEC, Science Payload and Advanced Concepts Office, Noordwijk, THE NETHERLANDS
Peacock, A.; European Space Agency ESTEC, Science Payload and Advanced Concepts Office, Noordwijk, THE NETHERLANDS
Krumrey, Michael; 7.1, Photonenradiometrie, PTB-Berlin
Hoffmann, Michael; 7.1, Photonenradiometrie, PTB-Berlin
Müller, Peter; 7.1, Photonenradiometrie, PTB-Berlin
Lehrmann, V.; Infineon Technologies, München, GERMANY
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| Quelle/Jahr | Optics for EUV, X-ray, and gamma-ray astronomy II: 3 - 4 August 2005, San Diego, California, USA:(2005), 151 |
| Schriftenreihe | Proceedings of SPIE: 5900 |
| ISBN | 0-8194-5905-4 |
| DOI | |
| Verlag | Bellingham, Wash.: SPIE |
| Konferenzangaben | 50th SPIE Meeting, San Diego, Calif., 31 July - 4 August, 2005, USA |
| Freie Schlagworte | X-ray astronomy ; X-ray optics ; micro-pore optics ; astronomical telescopes ; XEUS |
| Zusammenfassung | The next generation astronomical X-ray telescopes (such as the X-ray Evolving Universe Spectroscopy mission XEUS) require extremely large collecting areas (effective area of ~10 m2 at 1 keV) in combination with good angular resolution of ~5” or better. The existing technologies such as polished glass and nickel electroforming would lead to excessively heavy and expensive optics, and/or are not able to produce the required large area. We have developed an entirely novel technology for producing X-ray optics which results in very light, stiff and modular optics. These can be assembled into almost arbitrarily large apertures and are perfectly suited for future astrophysics missions such as XEUS. Indeed this crucial technology ensures that the ambitious mission profile is actually feasible. The technology makes use of commercially available silicon wafers from the semiconductor industry. The latest generation of 12 inch silicon wafers have a surface roughness that is sufficiently low (~0.3 nm) for X-ray reflection, are plan-parallel to better than a micrometer, have almost perfect mechanical properties and are considerably cheaper than other high-quality optical materials. The wafers are bent into an accurate cone and assembled to form a stiff pore structure. The resulting light and stiff modules, which we term a High-performance Pore Optics (HPO), form a small segment of a Wolter-I optic, and are easily assembled into a modular optic with large collecting area. We have implemented an automated production process of HPOs on laboratory scale and describe facilities developed with ESA at the Cosine Research Centre. We present the status of the production and the results obtained with this highly innovative technology at the synchrotron radiation facilities of PTB at BESSY which indicate an excellent X-ray imaging performance coming close to the XEUS requirements for imaging resolution and mirror mass. |
Zitierung
Kraft, S., Collon, M., Guenther, R., Beijersbergen, M. W., Bavdaz, M., Lumb, D. H., Wallace, K., Peacock, A., Krumrey, M., Hoffmann, M., Müller, P., & Lehrmann, V. (2005). Development of modular high-performance pore optics for the XEUS X-ray telescope. 50th SPIE Meeting, San Diego, Calif., 31 July - 4 August, 2005, USA. https://doi.org/10.1117/12.638934