Title: NIST Releases Beginner’s Guide to Fitting Polarized Neutron Reflectometry Data
Summary:
The National Institute of Standards and Technology (NIST) has published a beginner’s guide to analyzing polarized neutron reflectometry (PNR) data using the Refl1D software. The guide provides a practical introduction to fitting PNR data, focusing on the process of creating analysis scripts in Python to define the theoretical model for data fitting.
Key points:
– Users must load an analysis script that sets parameters like layer numbers, initial guesses, and constraints
– The guide covers best practices for data fitting, evaluating uncertainty, and interpreting PNR data features
– Example scripts are provided for fitting real datasets, with increasing complexity
– Models may differ from published work and include constraints from other measurements
The guide aims to help users learn the syntax of Refl1D and modify scripts for their specific fitting needs, while providing a foundation for understanding PNR data analysis.
Source: https://www.nist.gov/ncnr/fitting-polarized-neutron-reflectometry-data-beginners-guide
Keywords: polarized neutron reflectometry, PNR data, Refl1D software
