refnx - the next generation of reflectometry analysis software
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Date
2021-11-24
Authors
Journal Title
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Volume Title
Publisher
Australian Nuclear Science and Technology Organisation
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
Computer codes, Python, Programming languages, Bayesian statistics, Structural models, Uncertainty principle
Citation
Nelson, A., & Prescott, S. (2021). refnx - the next generation of reflectometry analysis software. Poster presented to the ANBUG-AINSE Neutron Scattering Symposium, AANSS 2020, Virtual Meeting 11th - 13 November 2020, (pp. 98). Retrieved from: https://events01.synchrotron.org.au/event/125/attachments/725/1149/AANSS_Abstract_Booklet_Complete_-_1_Page_Reduced.pdf