Although simple analysis can be performed by eye on Mössbauer spectra (eg seeing whether a sample is magnetised or not) to determine the hyperfine parameters computer analysis is necessary. The raw data is collected by a data acquisition computer system and transferred to a Sun Solaris system for analysis. The spectrum is folded and a theoretical spectrum is calculated according to specified hyperfine parameters and compared to the data. The parameters can then be varied to obtain the lowest value and give the best fit.
As there are a number of minima of that can be obtained from various points in parameter space the resulting fits must then be checked for consistent parameters to ensure a fit that is physically valid.