Gann Eliot, Crofts Thomas, Holland Glenn, Beaucage Peter, McAfee Terry, Kline R Joseph, Collins Brian A, McNeill Christopher R, Fischer Daniel A, DeLongchamp Dean M
Materials Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States of America.
FMB-Oxford, Osney Mead, Oxford OX2 0ES, United Kingdom.
J Phys Condens Matter. 2021 Mar 10;33(16). doi: 10.1088/1361-648X/abdffb.
We present the design and performance of a polarized resonant soft x-ray scattering (RSoXS) station for soft matter characterization built by the national institute of standards and technology at the national synchrotron light source-II (NSLS-II). The RSoXS station is located within the spectroscopy soft and tender beamline suite at NSLS-II located in Brookhaven national laboratory, New York. Numerous elements of the RSoXS station were designed for optimal performance for measurements on soft matter systems, where it is of critical importance to minimize beam damage and maximize collection efficiency of polarized x-rays. These elements include a novel optical design, sample manipulator and sample environments, as well as detector setups. Finally, we will report the performance of the measurement station, including energy resolution, higher harmonic content and suppression methods, the extent and mitigation of the carbon absorption dip on optics, and the range of polarizations available from the elliptically polarized undulator source.
我们展示了美国国家标准与技术研究院在国家同步辐射光源二期（NSLS-II）建造的用于软物质表征的极化共振软X射线散射（RSoXS）站的设计与性能。该RSoXS站位于纽约布鲁克海文国家实验室的NSLS-II的光谱软且柔和光束线套件内。RSoXS站的众多元件专为软物质系统测量的最佳性能而设计，在软物质系统中，将光束损伤降至最低并最大化极化X射线的收集效率至关重要。这些元件包括新颖的光学设计、样品操纵器和样品环境，以及探测器设置。最后，我们将报告测量站的性能，包括能量分辨率、高次谐波含量及抑制方法、光学元件上碳吸收凹陷的程度及缓解措施，以及椭圆极化波荡器源可提供的极化范围。
