TY - JOUR
T1 - Analysis of randomly oriented structures by grazing-incidence small-angle neutron scattering
AU - Korolkov, Denis
AU - Busch, Peter
AU - Willner, Lutz
AU - Kentzinger, Emmanuel
AU - Rücker, Ulrich
AU - Paul, Amitesh
AU - Frielinghaus, Henrich
AU - Brückel, Thomas
PY - 2012/2/9
Y1 - 2012/2/9
N2 - A formalism is presented which allows the quantitative evaluation of data from grazing-incidence small-angle neutron and X-ray scattering-GISANS and GISAXS-in the framework of the distorted wave Born approximation. While several aspects have been reported previously, this formalism combines solutions for scattering intensities in both reflection and transmission hemispheres, taking into account instrumental resolution effects. This formalism is applied to the case of GISANS from self-organized diblock copolymers, ordered in perpendicular lamellar structures on an Si wafer in randomly oriented short-range-ordered regions. The periodicity of D = 85 (9) nm found for deuterated polystyrene-polybutadiene of molecular weight M w = 165 kg mol -1 and a molecular weight fraction of the deuterated polystyrene block of 52% is consistent with atomic force microscopy and specular neutron reflectivity results.
AB - A formalism is presented which allows the quantitative evaluation of data from grazing-incidence small-angle neutron and X-ray scattering-GISANS and GISAXS-in the framework of the distorted wave Born approximation. While several aspects have been reported previously, this formalism combines solutions for scattering intensities in both reflection and transmission hemispheres, taking into account instrumental resolution effects. This formalism is applied to the case of GISANS from self-organized diblock copolymers, ordered in perpendicular lamellar structures on an Si wafer in randomly oriented short-range-ordered regions. The periodicity of D = 85 (9) nm found for deuterated polystyrene-polybutadiene of molecular weight M w = 165 kg mol -1 and a molecular weight fraction of the deuterated polystyrene block of 52% is consistent with atomic force microscopy and specular neutron reflectivity results.
KW - distorted wave Born approximation
KW - grazing-incidence small-angle X-ray scattering
KW - grazing-incidence small-angle neutron scattering
KW - random orientation
UR - http://www.scopus.com/inward/record.url?scp=84859769102&partnerID=8YFLogxK
U2 - 10.1107/S0021889812002324
DO - 10.1107/S0021889812002324
M3 - 文章
AN - SCOPUS:84859769102
VL - 45
SP - 245
EP - 254
JO - Journal of Applied Crystallography
JF - Journal of Applied Crystallography
SN - 0021-8898
IS - 2
ER -