8 October 2014 Development of split-delay x-ray optics using Si(220) crystals at SACLA
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We proposed a split and delay optics setup with Si(220) crystals combined with Kirkpatric-Baez mirror optics for x-ray pump-x-ray probe experiments at x-ray free-electron laser facilities. A prototype of the split-delay optics and its alignment procedure were tested at BL29XUL of SPring-8. The horizontal focal profile, measured via double-beam operation, showed good spatial overlap between the split beams with an FWHM of 100 nm, near the diffraction limit at 10 keV. High throughputs of the split-delay optics of 12% (upper) and 7.4% (lower) were obtained. The throughputs can be improved to 30% and 20% by optimizing the upper and lower central energy, respectively.
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Taito Osaka, Taito Osaka, Takashi Hirano, Takashi Hirano, Makina Yabashi, Makina Yabashi, Yasuhisa Sano, Yasuhisa Sano, Kensuke Tono, Kensuke Tono, Yuichi Inubushi, Yuichi Inubushi, Takahiro Sato, Takahiro Sato, Kanade Ogawa, Kanade Ogawa, Satoshi Matsuyama, Satoshi Matsuyama, Tetsuya Ishikawa, Tetsuya Ishikawa, Kazuto Yamauchi, Kazuto Yamauchi, } "Development of split-delay x-ray optics using Si(220) crystals at SACLA", Proc. SPIE 9210, X-Ray Free-Electron Lasers: Beam Diagnostics, Beamline Instrumentation, and Applications II, 921009 (8 October 2014); doi: 10.1117/12.2060238; https://doi.org/10.1117/12.2060238


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