# What's New: MuMag Tool

The new MuMag tool lets you extract micromagnetic properties from a series of unpolarized neutron experiments.

MuMag lets you calculate micromagnetic properties such as the magnetic exchange stiffness by considering a series of SANS curves taken over different magnetic fields to be a linear combination of response functions.

Please note that MuMag is currently designated as experimental software. While the underlying algorithms are mathematically robust and have been extensively tested, the tool interface and some advanced features may evolve based on user feedback and ongoing development. We recommend careful validation of results against established methods and welcome feedback from the magnetic scattering community to guide future enhancements.