Evaluation of inelasticity effects in diffraction


For total diffraction measurements using neutrons it is important to correct the data for inelasticity effects, especially for samples containing light atoms. Conventionally this has been done by Placzek type formulae, but this approach breaks down for hydrogen. There is, however, a proposed alternative approach where the correction is evaluated from experimental inelastic scattering data. We wish to use GEM beamtime to investigate this approach. A test measurement has shown that the GEM incident beam can be monochromated by the disc choppers, but significantly more beamtime is required for further investigation. We wish to use GEM to make crude inelastic scattering measurements of several test materials (H2O, D2O and NaH), and to use these to correct the corresponding diffraction data for inelasticity.

DOI https://doi.org/10.5286/ISIS.E.24068571
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24068571
Creator Dr Alex Hannon; Dr Emma Barney; Dr Toshi Otomo
Publisher ISIS Neutron and Muon Source
Publication Year 2012
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2009-06-02T08:01:48Z
Temporal Coverage End 2009-06-05T17:03:10Z