X-ray refractive collimator based on planar silicon lens

Irina Snigireva; Michail Grigoriev; Leonid Shabel'nikov; Vecheslav Yunkin; Anatoly A. Snigirev; Serguei Kuznetsov; Marco Di Michiel; Martin Hoffmann; Edgar I. Voges

doi:10.1117/12.451015

21 November 2002 X-ray refractive collimator based on planar silicon lens

Irina Snigireva, Michail Grigoriev, Leonid Shabel'nikov, Vecheslav Yunkin, Anatoly A. Snigirev, Serguei Kuznetsov, Marco Di Michiel, Martin Hoffmann, Edgar I. Voges

Author Affiliations +

Proceedings Volume 4783, Design and Microfabrication of Novel X-Ray Optics; (2002) https://doi.org/10.1117/12.451015
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

We demonstrate that Si planar parabolic lens with long focus distance can collimate high energy X-rays with microradian precision. A divergent beam from a wiggler at the ESRF ID15 beamline is reduced from 15 microradian down to 1 microradian. We propose a new imaging technique for direct measurements of beam divergence. It is shown experimentally that precision better than 1 mrad may be really achieved. Measurements are done at the energy range 60 - 90 keV. Contribution of source size and diffraction phenomena to the precision and ultimate sensitivity of the developed technique is discussed.

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Irina Snigireva, Michail Grigoriev, Leonid Shabel'nikov, Vecheslav Yunkin, Anatoly A. Snigirev, Serguei Kuznetsov, Marco Di Michiel, Martin Hoffmann, and Edgar I. Voges "X-ray refractive collimator based on planar silicon lens", Proc. SPIE 4783, Design and Microfabrication of Novel X-Ray Optics, (21 November 2002); https://doi.org/10.1117/12.451015

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