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通过添加一个带有垂直旋转轴的便携式、低成本小角X射线散射（USAXS）模块来扩展同步加速器小角X射线散射（SAXS）仪器的范围。

Extending synchrotron SAXS instrument ranges through addition of a portable, inexpensive USAXS module with vertical rotation axes.

作者信息

Pauw Brian R, Smith Andrew J, Snow Tim, Shebanova Olga, Sutter John P, Ilavsky Jan, Hermida-Merino Daniel, Smales Glen J, Terrill Nicholas J, Thünemann Andreas F, Bras Wim

机构信息

Bundesanstalt für Materialforschung und -prüfung (BAM), 12205 Berlin, Germany.

Diamond Light Source Ltd, Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom.

出版信息

J Synchrotron Radiat. 2021 May 1;28(Pt 3):824-833. doi: 10.1107/S1600577521003313. Epub 2021 Apr 19.

DOI:10.1107/S1600577521003313
PMID:33949990
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8127376/
Abstract

Ultra-SAXS can enhance the capabilities of existing synchrotron SAXS/WAXS beamlines. A compact ultra-SAXS module has been developed, which extends the measurable q-range with 0.0015 ≤ q (nm) ≤ 0.2, allowing structural dimensions in the range 30 ≤ D (nm) ≤ 4000 to be probed in addition to the range covered by a high-end SAXS/WAXS instrument. By shifting the module components in and out on their respective motor stages, SAXS/WAXS measurements can be easily and rapidly interleaved with USAXS measurements. The use of vertical crystal rotation axes (horizontal diffraction) greatly simplifies the construction, at minimal cost to efficiency. In this paper, the design considerations, realization and synchrotron findings are presented. Measurements of silica spheres, an alumina membrane, and a porous carbon catalyst are provided as application examples.

摘要

小角X射线散射（Ultra-SAXS）可以增强现有同步辐射小角X射线散射/广角X射线散射（SAXS/WAXS）光束线的能力。现已开发出一种紧凑型小角X射线散射模块，其将可测量的q范围扩展至0.0015 ≤ q (nm) ≤ 0.2，除了高端小角X射线散射/广角X射线散射仪器所覆盖的范围外，还能探测30 ≤ D (nm) ≤ 4000范围内的结构尺寸。通过在各自的电机平台上移入和移出模块组件，小角X射线散射/广角X射线散射测量可以轻松、快速地与小角X射线散射测量交错进行。使用垂直晶体旋转轴（水平衍射）极大地简化了结构，而效率损失最小。本文介绍了设计考量、实现方法和同步辐射研究结果，并提供了二氧化硅球、氧化铝膜和多孔碳催化剂的测量作为应用实例。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/a9f6631c622e/s-28-00824-fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/f4a616e09ecf/s-28-00824-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/f85045f13732/s-28-00824-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/cd3eef6c6519/s-28-00824-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/e39d1e195b67/s-28-00824-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/93217d491fd1/s-28-00824-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/897b6d607f1f/s-28-00824-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/4f541dfc4544/s-28-00824-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/3a05b0868ee5/s-28-00824-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/a9f6631c622e/s-28-00824-fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/f4a616e09ecf/s-28-00824-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/f85045f13732/s-28-00824-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/cd3eef6c6519/s-28-00824-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/e39d1e195b67/s-28-00824-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/93217d491fd1/s-28-00824-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/897b6d607f1f/s-28-00824-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/4f541dfc4544/s-28-00824-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/3a05b0868ee5/s-28-00824-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d78/8127376/a9f6631c622e/s-28-00824-fig9.jpg

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