Abstract
ALFA is an interactive graphical tool for analysing multiplets in alpha-particle spectra using a convolution-type peak-fitting function. A tailing subtraction reduces interference between peaks. Peak positions and areas are calculated by non-linear least-squares fitting. Uncertainties are computed considering covariances. Relevant parameters in the optimization are saved with the spectrum file. ALFA includes full options for management of a database of analysed spectra. The program structure, options and performance are briefly reviewed.
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