First quantitative test of spin-echo small-angle neutron scattering
Wim Bouwman (TU Delft - RST/Neutron and Positron Methods in Materials)
O Uca (TU Delft - Old - Section Neutron scattering / Mossbauerspectroscopy)
S. V. Grigoriev (External organisation)
Wicher Kraan (TU Delft - RST/Neutron and Positron Methods in Materials)
J Plomp (TU Delft - RID/TS/Instrumenten groep)
M.T. Rekveldt (TU Delft - RST/Neutron and Positron Methods in Materials)
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Abstract
Spin-echo small-angle neutron scattering of dilute dispersions of mono-disperse polystyrene spheres is measured. The spheres have radii of 60 and 100 nm. The measurements agree well in shape and absolute intensity with calculations. Multiple scattering is significant in these experiments and is easily taken into account. This is the first time that quantitative analysis of real-space small-angle neutron scattering is possible. The calculations show that this technique will have most applications in systems with strong scattering, which usually implies larger length scales.
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