Absolute scale calibration with use of excess scattering length for small-angle X-ray scattering

被引：6

作者：

Ohta, Noboru ^{[1
]}

Sekiguchi, Hiroshi ^{[1
]}

Sasaki, Yuji C. ^{[2
]}

Yagi, Naoto ^{[1
]}

机构：

[1] Japan Synchrotron Radiat Res Inst, Res & Utilizat Div, Sayo, Hyogo 6795198, Japan

[2] Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba 2778561, Japan

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2014年 / 47卷

关键词：

1-bromododecane; 1-chlorododecane; absolute scale calibration; dodecane; SAXS; small-angle X-ray scattering;

D O I：

10.1107/S1600576714002210

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：654 / 658

页数：5

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