SUNBIM: a package for X-ray imaging of nano- and biomaterials using SAXS, WAXS, GISAXS and GIWAXS techniques

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• 作者：Dritan Siliqi ; Liberato De Caro ; Massimo Ladisa ; Francesco Scattarella ; Annamaria Mazzone ; Davide Altamura ; Teresa Sibillano and Cinzia Giannini
• 关键词：small- and wide-angle X-ray scattering ; grazing-incidence small- and wide-angle X-ray scattering ; SAXS/WAXS ; GISAXS/GIWAXS ; imaging ; microscopy ; supramolecular order ; computer programs
• 刊名：Journal of Applied Crystallography
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：49
• 期：3
• 页码：1107-1114
• 全文大小：1785K
• ISSN：1600-5767

文摘

SUNBIM (supramolecular and submolecular nano- and biomaterials X-ray imaging) is a suite of integrated programs which, through a user-friendly graphical user interface, are optimized to perform the following: (i) q-scale calibration and two-dimensional one-dimensional folding on small- and wide-angle X-ray scattering (SAXS/WAXS) and grazing-incidence SAXS/WAXS (GISAXS/GIWAXS) data, also including possible eccentricity corrections for WAXS/GIWAXS data; (ii) background evaluation and subtraction, denoising, and deconvolution of the primary beam angular divergence on SAXS/GISAXS profiles; (iii) indexing of two-dimensional GISAXS frames and extraction of one-dimensional GISAXS profiles along specific cuts; (iv) scanning microscopy in absorption and SAXS contrast. The latter includes collection of transmission and SAXS data, respectively, in a mesh across a mm² area, organization of the as-collected data into a single composite image of transmission values or two-dimensional SAXS frames, analysis of the composed data to derive the absorption map and/or the spatial distribution, and orientation of nanoscale structures over the scanned area.