ISIS Neutron and Muon Source Data Journal

Spin-echo SANS grating standard measurement and analysis.

Abstract: As part of the ongoing development and standardisation of SESANS instrumentation and data analysis methods the community is continuing to explore new calibration standards. The acquisition of 2 new bespoke silicon gratings will allow more robust calibration of Larmor at shorter spin-echo lengths and the development of more robust models for the observed scattering. The data will then be compared with subsequent measurements carried out at TU-Delft. In addition, the possibility of rotating the gratings to reduce the effective period will be explored as a method of further increasing the accuracy of the calibration at very short spin-echo lengths comparable with those observed in (V)SANS. It is likely that a new model will be required to accurately describe this data. This will be investigated by comparison with existing descriptions based on the phase object approximation and dynamical theory.

Local Contact: Dr Robert Dalgliesh
Experimenter: Mr Joseph Orgill

DOI: 10.5286/ISIS.E.RB2310728

ISIS Experiment Number: RB2310728

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Robert Dalgliesh et al; (2023): Spin-echo SANS grating standard measurement and analysis., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310728

Data is released under the CC-BY-4.0 license.