15 July 2008 Performance of silicon pore optics
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Abstract
Silicon pore optics have been developed over the last years to enable future astrophysical X-ray telescopes and have now become a candidate mirror technology for the XEUS mission. Scientific requirements demand an angular resolution better than 5" and a large effective area of several square meters at photon energies of 1 keV. This paper discusses the performance of the latest generation of these novel light, stiff and modular X-ray optics, based on ribbed plates made from commercial high grade 12" silicon wafers. Stacks with several tens of silicon plates have been assembled in the course of an ESA technology development program, by bending the plates into accurate shape and directly bonding them on top of each other. Several mirror modules, using two stacks each, have been aligned and integrated to form the conical approximation of a Wolter-I design. This paper presents the status of the technology, addresses and discusses a number of activities in the ongoing ESA technology development and shows latest results of full area measurements at the MPE X-ray test facility (PANTER).
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maximilien J. Collon, Maximilien J. Collon, Ramses Günther, Ramses Günther, Marcelo Ackermann, Marcelo Ackermann, E. J. Buis, E. J. Buis, G. Vacanti, G. Vacanti, Marco W. Beijersbergen, Marco W. Beijersbergen, Marcos Bavdaz, Marcos Bavdaz, Kotska Wallace, Kotska Wallace, Michael Freyberg, Michael Freyberg, Michael Krumrey, Michael Krumrey, } "Performance of silicon pore optics", Proc. SPIE 7011, Space Telescopes and Instrumentation 2008: Ultraviolet to Gamma Ray, 70111E (15 July 2008); doi: 10.1117/12.789723; https://doi.org/10.1117/12.789723
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