Maximum-likelihood-based method to estimate spectral line location parameter within gamma quanta energetic spectrum

The method was supposed to obtain an effective estimation of spectral line location parameter within gamma quanta energetic spectrum. The method is based on numerical solving of an equations set obtained by the maximum likelihood method applied to sample data functional description. The numerical modeling was carried out to prove the efficiency of the method supposed. The invariance to the background radiation level was shown. This feature is provided by the background statistical nature taken into account in sample data functional description.