TY - JOUR
T1 - Double Bragg scattering observed in small-angle X-ray scattering from highly oriented pyrolytic graphite
AU - Ohmasa, Yoshinori
AU - Shimomura, Susumu
AU - Chiba, Ayano
N1 - Publisher Copyright:
© 2016 International Union of Crystallography.
PY - 2016
Y1 - 2016
N2 - In small-angle X-ray scattering from highly oriented pyrolytic graphite, radial streak patterns are observed. The streaks change their direction with sample rotation and appear and disappear in pairs. This streak pattern can be explained by double Bragg scattering. The directions of the streaks calculated as functions of the rotation angle are in good agreement with experiment. In addition, asymmetry in the intensity of the streaks and a small deviation from the radial pattern are observed, and they can be explained by the finite sample-size effect. The necessity of taking double Bragg scattering into account in small-angle X-ray scattering studies of crystalline materials is emphasized.
AB - In small-angle X-ray scattering from highly oriented pyrolytic graphite, radial streak patterns are observed. The streaks change their direction with sample rotation and appear and disappear in pairs. This streak pattern can be explained by double Bragg scattering. The directions of the streaks calculated as functions of the rotation angle are in good agreement with experiment. In addition, asymmetry in the intensity of the streaks and a small deviation from the radial pattern are observed, and they can be explained by the finite sample-size effect. The necessity of taking double Bragg scattering into account in small-angle X-ray scattering studies of crystalline materials is emphasized.
KW - HOPG
KW - SAXS
KW - double Bragg scattering
KW - highly oriented pyrolytic graphite
KW - radial streak patterns
KW - small-angle X-ray scattering
UR - http://www.scopus.com/inward/record.url?scp=84973344424&partnerID=8YFLogxK
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U2 - 10.1107/S1600576716004568
DO - 10.1107/S1600576716004568
M3 - Article
AN - SCOPUS:84973344424
VL - 49
SP - 835
EP - 844
JO - Journal of Applied Crystallography
JF - Journal of Applied Crystallography
SN - 0021-8898
ER -