Determination of small alterations in the radius of gyration by small-angle X-ray scattering

1971 ◽  
Vol 4 (4) ◽  
pp. 317-318 ◽  
Author(s):  
I. Simon
Keyword(s):  
Small Angle ◽  
Direct Determination ◽  
Differential Method ◽  
Scattering Data ◽  
Radius Of Gyration ◽  
X Ray ◽  
X Ray Scattering ◽  
Colloid Particles ◽  
Ray Scattering

A differential method is presented for the evaluation of small-angle X-ray scattering data. The direct determination of slight changes in the radius of gyration of colloid particles is rendered possible by the method proposed.

scholarly journals Guinier peak analysis for visual and automated inspection of small-angle X-ray scattering data

2016 ◽  
Vol 49 (5) ◽  
pp. 1412-1419 ◽  
Author(s):  
Christopher D. Putnam
Keyword(s):  
Small Angle ◽  
Peak Position ◽  
Scattering Data ◽  
Radius Of Gyration ◽  
Automated Inspection ◽  
Elongation Ratio ◽  
Saxs Data ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

The Guinier region in small-angle X-ray scattering (SAXS) defines the radius of gyration,Rg, and the forward scattering intensity,I(0). In Guinier peak analysis (GPA), the plot ofqI(q)versus q2transforms the Guinier region into a characteristic peak for visual and automated inspection of data. Deviations of the peak position from the theoretical position in dimensionless GPA plots can suggest parameter errors, problematic low-resolution data, some kinds of intermolecular interactions or elongated scatters. To facilitate automated analysis by GPA, the elongation ratio (ER), which is the ratio of the areas in the pair-distribution functionP(r) after and before theP(r) maximum, was characterized; symmetric samples have ER values around 1, and samples with ER values greater than 5 tend to be outliers in GPA analysis. Use of GPA+ER can be a helpful addition to SAXS data analysis pipelines.

Model-based approaches for the determination of lipid bilayer structure from small-angle neutron and X-ray scattering data

2012 ◽  
Vol 41 (10) ◽  
pp. 875-890 ◽  
Author(s):  
Frederick A. Heberle ◽  
Jianjun Pan ◽  
Robert F. Standaert ◽  
Paul Drazba ◽  
Norbert Kučerka ◽  
...  
Keyword(s):  
Lipid Bilayer ◽  
Small Angle ◽  
Scattering Data ◽  
Bilayer Structure ◽  
X Ray ◽  
Model Based ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Global Small-Angle X-ray Scattering Data Analysis of Triacylglycerols in the Molten State (Part I)

2018 ◽  
Vol 122 (45) ◽  
pp. 10320-10329 ◽  
Author(s):  
Amin Sadeghpour ◽  
Marjorie Ladd Parada ◽  
Josélio Vieira ◽  
Megan Povey ◽  
Michael Rappolt
Keyword(s):  
Data Analysis ◽  
Small Angle ◽  
Scattering Data ◽  
Molten State ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering
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