This title appears in the Scientific Report :
2010
Please use the identifier:
http://dx.doi.org/10.1107/S0021889810022156 in citations.
Experimental determination of resolution function parameters from small-angle neutron scattering data of a colloidal SiO2 dispersion
Experimental determination of resolution function parameters from small-angle neutron scattering data of a colloidal SiO2 dispersion
A dilute dispersion of charge-stabilized, monodisperse silica nanoparticles has been used to determine the instrumental resolution function parameters of a conventional small-angle neutron scattering instrument in pinhole geometry over the entire accessible range of momentum transfer q. Independent...
Saved in:
Personal Name(s): | Vad, T. |
---|---|
Sager, W. F. C. / Zhang, J. / Buitenhuis, J. / Radulescu, A. | |
Contributing Institute: |
Weiche Materie; IFF-7 JCNS; JCNS Neutronenstreuung; IFF-5 Streumethoden; IFF-4 |
Published in: | Journal of applied crystallography, 43 (2010) S. 686 - 692 |
Imprint: |
Copenhagen
Munksgaard
2010
|
Physical Description: |
686 - 692 |
DOI: |
10.1107/S0021889810022156 |
Document Type: |
Journal Article |
Research Program: |
BioSoft Großgeräte für die Forschung mit Photonen, Neutronen und Ionen (PNI) BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |
Series Title: |
Journal of Applied Crystallography
43 |
Subject (ZB): | |
Publikationsportal JuSER |
A dilute dispersion of charge-stabilized, monodisperse silica nanoparticles has been used to determine the instrumental resolution function parameters of a conventional small-angle neutron scattering instrument in pinhole geometry over the entire accessible range of momentum transfer q. Independent determination of the structure parameters of the colloidal silica dispersion by small-angle X-ray scattering enables refinement of both the q-independent geometric and the q-dependent ( wavelength spread or polychromaticity of the neutron beam) contributions to the resolution function. The procedure described is appropriate if no further instrumental characterization is available. It is demonstrated that the sample used for refining the resolution function parameters has to exhibit sharp structural scattering features such as Bragg reflections, form factor maxima and minima, or an inter-particle correlation peak for each instrumental configuration at which the measurements have been performed to cover a q range of two orders of magnitude (0.03 < q < 3.2 nm(-1)). |