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Proceedings Paper

Present status of stability improvement of SPring-8 standard x-ray monochromators
Author(s): Hiroshi Yamazaki; Yasuhiro Shimizu; Nobutaka Shimizu; Masahide Kawamoto; Yoshiaki Kawano; Yasunori Senba; Haruhiko Ohashi; Shunji Goto
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Paper 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.

Paper Details

Date Published: 3 September 2008
PDF: 10 pages
Proc. SPIE 7077, Advances in X-Ray/EUV Optics and Components III, 707719 (3 September 2008); doi: 10.1117/12.796685
Show Author Affiliations
Hiroshi Yamazaki, Japan Synchrotron Radiation Research Institute (Japan)
Yasuhiro Shimizu, SPring-8 Service Co., Ltd. (Japan)
Nobutaka Shimizu, Japan Synchrotron Radiation Research Institute (Japan)
Masahide Kawamoto, Japan Synchrotron Radiation Research Institute (Japan)
Yoshiaki Kawano, RIKEN SPring-8 Ctr. (Japan)
Yasunori Senba, Japan Synchrotron Radiation Research Institute (Japan)
Haruhiko Ohashi, Japan Synchrotron Radiation Research Institute (Japan)
Shunji Goto, Japan Synchrotron Radiation Research Institute (Japan)


Published in SPIE Proceedings Vol. 7077:
Advances in X-Ray/EUV Optics and Components III
Ali M. Khounsary; Christian Morawe; Shunji Goto, Editor(s)

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