Microradian X-ray diffraction in colloidal photonic crystals

被引：86
|
作者：
Petukhov, AV [1 ]
Thijssen, JHJ
t Hart, DC
Imhof, A
van Blaaderen, A
Dolbnya, IP
Snigirev, A
Moussaïd, A
Snigireva, I
机构：
[1] Univ Utrecht, Debye Inst, Van Hoff Lab Phys & Colloid Chem, Utrecht, Netherlands
[2] ESRF, Swiss Norweigian Beamline BM1, F-38043 Grenoble, France
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2006年 / 39卷
关键词：
D O I：
10.1107/S0021889805041774
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Ultra-high-resolution small-angle X-ray scattering in various colloidal photonic crystals is reported. It is demonstrated that an angular resolution of about two microradians is readily achievable at a third-generation synchrotron source using compound refractive optics. The scheme allows fast acquisition of two-dimensional X-ray diffraction data and can be realised at sample-detector separations of only a few metres. As a result, diffraction measurements in colloidal crystals with interplanar spacings larger than a micrometre, as well as determination of the range of various order parameters from the width of the Bragg peaks, are made possible.
引用
收藏
页码：137 / 144
页数：8
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