Ultra‐small‐angle X‐ray diffraction and scattering experiments using medium‐length beamlines at SPring‐8
Ultra‐small‐angle X‐ray diffraction and scattering experiments using medium‐length beamlines at SPring‐8
复制标题
在 SPring-8 上使用中等长度光束线进行超小角度 X 射线衍射和散射实验
DOI：
10.1107/s0021889803000645
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发表时间：
2003
影响因子：
6.1
通讯作者：
Katsuaki Inoue
中科院分区：
文献类型：
--
作者：
N. Yagi;Katsuaki Inoue
在SPring-8的两条所谓的中等长度光束线上进行了超小角X射线衍射实验。一个是弯曲磁体束线（BL 20 B2），另一个是波荡器束线（BL 20 XU）。两者都有两个实验站，相距140-150米。将样品放置在第一个箱中，并在第二个箱中用X射线图像增强器或成像板记录衍射或散射图案。在12-21 keV的X射线能量下，实现了2 µm的小角度分辨率。记录蛙骨骼肌肌节衍射所需的曝光时间在BL 20 B2为10 min，在BL 20 XU为2 s。这些结果证明了这些光束线在超小角衍射/散射实验中的能力。
Ultra-small-angle X-ray diffraction experiments were made at the two so-called medium-length beamlines at SPring-8. One is a bending magnet beamline (BL20B2) and the other an undulator beamline (BL20XU). Both have two experimental stations separated by 140-150 m. Specimens were placed in the first hutch and the diffraction or scattering patterns were recorded in the second hutch with an X-ray image intensifier or an imaging plate. At an X-ray energy of 12-21 keV, a small-angle resolution of 2 µm was achieved. The exposure time required to record sarcomere diffraction from frog skeletal muscle was 10 min at BL20B2 and 2 s at BL20XU. These results demonstrate the capability of these beamlines in ultra-small angle diffraction/scattering experiments.