一种用于下一代同步辐射X射线源和X射线自由电子激光的X射线谐波分离器。
An X-ray harmonic separator for next-generation synchrotron X-ray sources and X-ray free-electron lasers.
作者信息
Inoue Ichiro, Osaka Taito, Tamasaku Kenji, Ohashi Haruhiko, Yamazaki Hiroshi, Goto Shunji, Yabashi Makina
机构信息
RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo, Hyogo 679-5148, Japan.
出版信息
J Synchrotron Radiat. 2018 Mar 1;25(Pt 2):346-353. doi: 10.1107/S160057751800108X. Epub 2018 Feb 28.
An X-ray prism for the extraction of a specific harmonic of undulator radiation is proposed. By using the prism in a grazing incidence geometry, the beam axes of fundamental and harmonics of undulator radiation are separated with large angles over 10 µrad, which enables the selection of a specific harmonic with the help of apertures, while keeping a high photon flux. The concept of the harmonic separation was experimentally confirmed using X-ray beams from the X-ray free-electron laser SACLA.
提出了一种用于提取波荡器辐射特定谐波的X射线棱镜。通过在掠入射几何结构中使用该棱镜，波荡器辐射的基波和谐波的光束轴以大于10 μrad的大角度分开，这使得能够借助孔径选择特定谐波，同时保持高光子通量。利用来自X射线自由电子激光SACLA的X射线束对谐波分离的概念进行了实验验证。
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