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首页> 外文会议>International Conference on Synchrotron Radiation Instrumentation >Present Status of BL40B2 and BL40XU at SPring-8 (Beamlines for Small Angle X-ray Scattering)
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Present Status of BL40B2 and BL40XU at SPring-8 (Beamlines for Small Angle X-ray Scattering)

机译：Spring-8的BL40B2和BL40xu的现状（小角度X射线散射的波束线）

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BL40B2 and BL40XU were built at SPring-8 in 1999. They are now open for public users and many kinds of small angle x-ray scattering experiments are carried out using these beamlines. We report the present status of these two beamlines. Also some examples of experimental results that were obtained at these beamlines are shown. BL40B2 is for recording small-angle x-ray scattering from non-crystalline biological materials. The light source is a bending magnet and the white x-rays generated by are monochromatized using a double crystal monochromator and focused by a 1-m-long rhodium-coated bent-cylinder mirror. The photon flux is 1×10~(11) photons/sec at 12.4 keV. The tunable energy range is 7 keV ～ 18 keV. As a detector, an imaging plate area detector (RIGAKU R-AXIS IV++) is installed. Two fixed-length vacuum paths allow camera lengths of 400 mm and 1000 mm. This beamline is suitable for static measurements with high accuracy and high resolution. The aim of BL40XU is to provide very high flux of x-rays for various experiments. On this concept, BL40XU was designed to use the fundamental undulator radiation as a quasi-monochromatic x-ray beam so that the use of the crystal monochromator was eliminated. The x-ray source of BL40XU is a helical undulator and its flux is estimated to be 1×10~(15) photons/sec at 12.4 keV. The x-ray is focused horizontally and vertically by bending two water-cooled focusing mirrors. So far, various time-resolved diffraction and scattering experiments on biomaterials and polymers have been carried out.
机译：BL40B2和BL40XU于1999年在Spring-8建造。现在，他们现在对公共用户开放，并且使用这些波束线进行多种小角度X射线散射实验。我们报告了这两个波束线的现状。还示出了在这些波束线上获得的实验结果的一些实例。 BL40B2用于从非晶体生物材料记录小角X射线散射。光源是弯曲磁体，并且由双晶单色器产生的白色X射线使用双晶单色器进行单色，并聚焦由1米长的铑涂覆的弯曲缸体。光子通量为1×10〜（11）光子/秒，12.4keV。可调谐能量范围为7 kev〜18 kev。作为探测器，安装了成像板区域检测器（Rigaku R轴IV ++）。两个固定长度真空路径允许相机长度为400 mm和1000 mm。该光束线适用于具有高精度和高分辨率的静态测量。 BL40xu的目的是为各种实验提供非常高的X射线。在这一概念上，设计了BL40xu，设计用于将基本的起伏辐射作为准单色X射线束，以便消除了晶体单色仪的使用。 BL40xu的X射线源是螺旋起伏器，其磁通量估计为1×10〜（15）光子/秒，在12.4keV。 X射线通过弯曲两个水冷的聚焦镜水平和垂直聚焦。到目前为止，已经进行了对生物材料和聚合物的各种时间分辨衍射和散射实验。

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