refnx - the next generation of reflectometry analysis software
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Date
2020-11-11
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Institute of Nuclear Science and Engineering (AINSE)
Abstract
refnx [1] is a next generation reflectometry analysis package, building on its predecessor, Motofit. In this
presentation we discuss its main design features:
• Bayesian statistics core with comprehensive uncertainty analyses and model selection (”how many
layers can the data justify”) [2].
• modular construction of structural models, ranging from a basic Slab up to freeform SLD profiles and
Lipid membrane leaflets. These components are easily extensible.
• Co-refinement of multiple contrast datasets.
• Mixed Area models.
• Python based with analyses performed in Jupyter notebooks or a Qt GUI.
refnx is specifically designed to facilitate reproducible research. Here we also discuss what reproducible
research means in the context of a neutron scattering study, outlining how this is achieved with refnx, and
how these practices could (should) be taken up by neutron scatterers in general. © The authors.
Description
Keywords
ANSTO, Neutrons, Scattering, Bayesian statistics, Design, Data
Citation
Nelson, A., & Prescott, S. (2020). refnx - the next generation of reflectometry analysis software. Poster presented to the ANBUG-AINSE Neutron Scattering Symposium, AANSS 2020, Virtual Meeting, 11th - 13th November 2020. (pp. 98). Retrieved from: https://events01.synchrotron.org.au/event/125/attachments/725/1149/AANSS_Abstract_Booklet_Complete_-_1_Page_Reduced.pdf