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Absolute scale calibration with use of excess scattering length for small‐angle X‐ray scattering
Author(s) -
Ohta Noboru,
Sekiguchi Hiroshi,
Sasaki Yuji C.,
Yagi Naoto
Publication year - 2014
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s1600576714002210
Subject(s) - small angle x ray scattering , scattering , calibration , absolute scale , small angle scattering , range (aeronautics) , dodecane , biological small angle scattering , length scale , intensity (physics) , materials science , optics , computational physics , molecular physics , chemistry , atomic physics , physics , small angle neutron scattering , neutron scattering , organic chemistry , quantum mechanics , composite material
For small‐angle X‐ray scattering (SAXS) in solution, absolute intensity calibration is an important step to estimate the number of electrons of the sample. In this study, the excess scattering length of 1‐bromododecane dispersed in dodecane was determined using that of 1‐chlorododecane in the same solvent. The deviation of the experimental values from theoretical calculations obtained using atomic factors was around 1%. It is suggested that the 1‐chlorododecane–dodecane system constitutes a new calibration approach that is applicable to various materials over a large energy range generally used in SAXS measurements, and could be less complex and more reliable than conventional methods.