Bergenholtz Johan, Ulama Jeanette, Zackrisson Oskolkova Malin
Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Göteborg, Sweden; Division of Physical Chemistry, Center of Chemistry and Chemical Engineering, Lund University, SE-221 00 Lund, Sweden.
Department of Chemistry and Molecular Biology, University of Gothenburg, SE-412 96 Göteborg, Sweden.
J Appl Crystallogr. 2016 Feb 1;49(Pt 1):47-54. doi: 10.1107/S1600576715023444.
A laboratory-scale small-angle X-ray scattering instrument with pinhole collimation has been used to assess smearing effects due to instrumental resolution. A new, numerically efficient method to smear ideal model intensities is developed and presented. It allows for directly using measured profiles of isotropic but otherwise arbitrary beams in smearing calculations. Samples of low-polydispersity polymer spheres have been used to show that scattering data can in this way be quantitatively modeled even when there is substantial distortion due to instrumental resolution.
一台带有针孔准直的实验室规模小角X射线散射仪已被用于评估由于仪器分辨率导致的模糊效应。一种新的、数值效率高的模糊理想模型强度的方法被开发并展示。它允许在模糊计算中直接使用各向同性但其他方面任意光束的测量轮廓。低多分散性聚合物球体的样品已被用于表明，即使由于仪器分辨率存在大量失真，散射数据也可以通过这种方式进行定量建模。
