NeXL: A Platform for Innovation in Microanalysis

NeXL is a series of loosely coupled software packages in the Julia language (https://julialang.org/) implementing X-ray microanalysis routines. NeXLCore (https://github.com/usnistgov/NeXLCore.jl, https://doi.org/10.18434/M32275) sits at the center of NeXL providing fundamental atomic and X-ray physics data and algorithms. In addition, it defines basic algorithms for handling materials, k-ratios and a Monte Carlo simulator of electron transport. NeXLMatrixCorrection (https://github.com/usnistgov/NeXLMatrixCorrection.jl, https://doi.org/10.18434/M32276) implements a handful of common matrix correction algorithms and a basic iteration algorithm. NeXLSpectrum (https://github.com/usnistgov/NeXLSpectrum.jl, https://doi.org/10.18434/M32286) implements energy dispersive X-ray spectrum manipulation and analysis tools for both spectra and hyper-spectra. It can read and write ISO/EMSA files and LISPIX-style RPL/RAW hyperspectra. NeXLUncertainties (https://github.com/usnistgov/NeXLUncertainties.jl, https://doi.org/10.18434/M32274) implements multivariate measurement models. Each package comes with a test suite to validate the code. User documentation is linked from the GitHub repository and each package is available for download through the Julia package manager.