Data Reproducibility of Spin-Echo Small-Angle Neutron Scattering Instruments
Fumiaki Funama (Oak Ridge National Laboratory)
Gregory N. Smith (ISIS Neutron and Muon Source)
S.R. Parnell (TU Delft - RID/TS/Instrumenten groep, ISIS Neutron and Muon Source)
CP Duif (TU Delft - RID/TS/Technici Pool, TU Delft - RST/Technici Pool)
W. G. Bouwman (TU Delft - RST/Neutron and Positron Methods in Materials)
Roger Pynn (Oak Ridge National Laboratory, Indiana University)
Robert M. Dalgliesh (ISIS Neutron and Muon Source)
F. Li (Oak Ridge National Laboratory)
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Abstract
Spin-echo small-angle neutron scattering (SESANS) is a unique method to measure structures of materials in real space with length scales from ∼ 30 μm to ∼20 µm [1]. As shown in Figure 1, the accessible length scale of SESANS is given by its ability to encode the momentum transfer into the Larmor phase, namely Φ = →δ . →Q, where →Q is the momentum transfer and →δ is the encoding vector of the setup and its projection along Q (δQ) is called spin-echo length (SEL). [...]
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