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28 September 2009 Focusing of hard x-rays with spherical compound refractive lens
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Abstract
A focusing test of hard x-rays has been done using spherical compound refractive lens which was composed of 123 biconcave microlenses with a size of 200 μm in diameter. Each microlens was formed by the epoxy between two bubbles which were injected into an epoxy-filled glass capillary. The focal length of the lens was 114 mm at 8 keV. The optical simulation was completed by ray tracing by the commercial program of ZEMAX. The estimated size of focal spot was 17.2 μm. The focusing experiment has been achieved at U7B beamline in the National Synchrotron Radiation Laboratory (NSRL) at the energy of 8 keV. The measured focal spot size (FWHM) was 33.3x65.9 μm2 (VxH).
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Chengchao Huang, Yury I. Dudchik, Baozhong Mu, Zhanshan Wang, and Guoqiang Pan "Focusing of hard x-rays with spherical compound refractive lens", Proc. SPIE 7451, Soft X-Ray Lasers and Applications VIII, 745111 (28 September 2009); doi: 10.1117/12.824847; https://doi.org/10.1117/12.824847
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