RASOR：先进的软X射线反射率和衍射仪
RASOR: An advanced instrument for soft x-ray reflectivity and diffraction
摘要：
本文报道了一种安装在金刚石光源上的新型软X射线衍射仪的设计和结构。光束线终端站RASOR是为一般用户而建造的，主要用于单晶衍射和薄膜反射率的研究。该仪器由一个有限的三圆（θ，2θ，x）衍射仪和一个额外的可移动旋转（θ）台组成。它配备了液氦低温恒温器和散射后偏振分析。提供了电动运动，用于将样品精确定位到衍射仪旋转中心上，并将旋转中心定位到X射线光束上。该仪器的功能已在Diamond Light Source进行了测试，并提供了初步测试测量结果，证明了该仪器的潜力。
英文摘要：
We report the design and construction of a novel soft x-ray diffractometer installed at Diamond Light Source. The beamline endstation RASOR is constructed for general users and designed primarily for the study of single crystal diffraction and thin film reflectivity. The instrument is comprised of a limited three circle (θ, 2θ, χ) diffractometer with an additional removable rotation (ϕ) stage. It is equipped with a liquid helium cryostat, and post-scatter polarization analysis. Motorised motions are provided for the precise positioning of the sample onto the diffractometer centre of rotation, and for positioning the centre of rotation onto the x-ray beam. The functions of the instrument have been tested at Diamond Light Source, and initial test measurements are provided, demonstrating the potential of the instrument.
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