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Fabrication of ultrathin Bragg beam splitter by plasma chemical vaporization machining

机译:等离子体化学汽化加工制备超薄布拉格分束器

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摘要

A novel fabrication process was proposed to produce high-quality Bragg beam splitters for hard X-ray free-electron lasers (XFELs), which should consist of thin, bend-free, and robust Bragg-case crystals without any defects. A combination of a mechanical process and plasma chemical vaporization machining was employed. High crystalline perfection of the fabricated Si(110) crystal was verified with X-ray topography and rocking curve measurements. In addition, the thickness was evaluated to be 4.4 μm from the fringe period of the measured rocking curve. The crystal can be employed in Bragg beam splitters using the (220) Bragg reflection for X-ray pump-X-ray probe experiments with XFEL sources.
机译:提出了一种新颖的制造工艺,以生产用于硬X射线自由电子激光器(XFEL)的高质量布拉格分光镜,该分光镜应由无缺陷的薄,无弯曲且坚固的布拉格外壳晶体组成。机械过程与等离子化学汽化加工相结合。通过X射线形貌和摇摆曲线测量验证了所制造的Si(110)晶体的高晶体完美度。另外,从测得的摇摆曲线的边缘时段起,将厚度评估为4.4μm。可以将晶体用于(220)布拉格反射的布拉格分束器中,用于XFEL源的X射线泵浦-X射线探针实验。

著录项

  • 来源
  • 会议地点 Hyogo(JP);Hyogo(JP)
  • 作者单位

    Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan;

    RIKEN/SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;

    Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan;

    Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan;

    RIKEN/SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;

    RIKEN/SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;

    Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan;

    RIKEN/SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;

    Department of Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka 565-0871, Japan,Reseach Center for Ultra-Precision Science and Technology, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bragg reflection; bragg beam splitter; X-ray free-electron laser; plasma chemical vaporization machining; topography; rocking curve; X-ray pump-X-ray probe experiment;

    机译:布拉格反射布拉格分束器X射线自由电子激光器;等离子化学汽化加工;地形;摇摆曲线X射线泵-X射线探头实验;

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