上海光源X射线小角散射光束线站的概念设计

Concept design of small angle X-ray scattering beamline and station in SSRF

设计了光子能量范围为5—20keV、能量分辨率好于1×10-3、光子通量高于1×1011s-1的同步辐射小角散射光束线站。采用弧矢聚焦单色仪对同步辐射白光进行单色化,并对单色光束进行水平方向聚焦;探测器与样品之间的距离可调以得到不同的小角分辨尺度;配置温度可调和压强可调的样品池用于时间分辨实验,而配置的快门系统可使时间分辨达到毫秒量级。

A synchrotron radiation small angle X-ray scattering beamline and station is designed, which has energy range of 5-20 keV, energy resolution better than 1 × 10^-3 and photon flux greater than 1×10^11 s^-1. The sagittally bent crystal monochromator is used to monochromize the synchrotron radiation, as well as to focus the X-ray beam horizontally. The distance from the detector to the sample is adjustable to achieve desired small angle resolution. The sample environments with controllable temperature and pressure are suitable for the time resolution experiment. The fast shutter system will make the time resolution reaching to the millisecond region.