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3 September 2008 Present status of stability improvement of SPring-8 standard x-ray monochromators
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Abstract
For the stabilization of the SPring-8 double-crystal monochromator with water-cooled inclined-cut silicon crystals, we have changed the water path of the first crystal, remodeled the crystal holders and attached x-ray and electron shield parts. The improvements are effective to supply constant-intensity microbeam, to extend the life time of the elastomer O-rings for water seal, and to decrease the radiation damages of the electric cables of the motors. The 1 Å microbeam with the size of 50 μm × 50 μm at an experimental station keeps constant intensity, though the intensity decreased by 26 % per hour before the improvements. The vibration of the mechanical stages is discussed as the remaining problem.
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Hiroshi Yamazaki, Yasuhiro Shimizu, Nobutaka Shimizu, Masahide Kawamoto, Yoshiaki Kawano, Yasunori Senba, Haruhiko Ohashi, and Shunji Goto "Present status of stability improvement of SPring-8 standard x-ray monochromators", Proc. SPIE 7077, Advances in X-Ray/EUV Optics and Components III, 707719 (3 September 2008); https://doi.org/10.1117/12.796685
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