CONSTRUCT CCD-BASED DIFFRACTOMETER SYSTEM FOR BEAMLINE X12-B & SHARED COMPUTING

光束线X12-B是一种弯曲磁铁光束线，由 布鲁克海文国家实验室生物部，资助下 来自美国生物与环境研究办公室(OBER) 能源部。M·卡佩尔负责该设施。这个 光束线弯曲时的水平接受度为3.5mrad 磁体，双聚焦光学器件，以及固定出射，Si(11) 单色仪提供稳定的、高强度的光束 光谱范围在7.6-13.1keV之间。光束的焦斑尺寸 在两个轴上都是300克半高宽。最大流量为_1012 xph/秒 可根据样品交付。因为豆子餐是为 小角衍射，着重于设计和制作 实施有效的光束准直系统。这个，在 配合成熟的光束线控制系统，提供稳定、 光亮的光束和低散射的x射线背景“)。 图中显示了光路和衍射仪机构 光束线。

Beamline X12-B is a bending-magnet beamline operated by the Biology Department of Brookhaven National Laboratory, under funding from the Office of Biological and Environmental Research (OBER) of the Department of Energy. M. Capel is responsible for the facility. The beamline has a horizontal acceptance of 3.5 mrad from a bending magnet, double focusing optics, and a fixed-exit, Si (I 11) monochromator to provide a stable, high intensity beam over the spectral range between 7.6 and 13.1 KeV. The beam's focal spot size is 300 gm FWHH along both axes. A maximum flux of _ 1012 xph/sec is deliverable on sample. Since the bean-dine was designed for small-angle diffraction, much emphasis was placed on designing and implementing an effective beam-collimation system. This, in conjunction with mature beamline control systems, provides a stable, brilliant beam and a low scattered xray background "). The following figure shows the optical train and diffractometer mechanism of the beamline.