Fit;o) - A M\"ossbauer spectrum fitting program

TL;DR

Fit;o) is a user-friendly M"ossbauer spectrum fitting program designed for complex mineral samples, offering multiple line profile options and easy data export, but not suitable for complete transmission integral analysis.

Contribution

It introduces a graphical, easy-to-use spectrum fitting tool tailored for complex mineral spectra, with multiple line profile options and export capabilities.

Findings

Supports Gaussian, Lorentzian, Split-Lorentzian, Pseudo-Voigt, Pseudo-Lorentz, Pearson-VII profiles

Enables quick analysis of complex mineral spectra without programming

Provides export options for data and reports

Abstract

Fit;o) is a M\"ossbauer fitting and analysis program written in Borland Delphi. It has a complete graphical user interface that allows all actions to be carried out via mouse clicks or key shortcut operations in a WYSIWYG fashion. The program does not perform complete transmission integrals, and will therefore not be suited for a complete analysis of all types of M\"ossbauer spectra and e.g. low temperature spectra of ferrous silicates. Instead, the program is intended for application on complex spectra resulting from typical mineral samples, in which many phases and different crystallite sizes are often present at the same time. The program provides the opportunity to fit the spectra with Gaussian, Lorentzian, Split-Lorentzian, Pseudo-Voigt, Pseudo-Lorentz and Pearson-VII line profiles for individual components of the spectra. This feature is particularly useful when the sample contains components, that are affected by effects of either relaxation or interaction among particles. Fitted spectra may be printed, fits saved, data files exported for graph creation in other programs, and analysis tables and reports may be exported as plain text or LaTeX files. With Fit;o) even an inexperienced user will soon be able to analyze and fit relatively complex M\"ossbauer spectra of mineralogical samples quickly without programming knowledge.