GammaLab: a suite of programs for k0-NAA and gamma-ray spectrum analysis

The GammaLab is a collection of computer codes, written in MATLAB, for performing calculations involved in k ₀ neutron activation analysis. The main features of the program include calibrations including energy-channel, energy-FWHM and energy-efficiency for different geometries, background subtraction, nuclide identification, spectral interference correction, elemental concentration and limit of detection determination. The data input is taken from two files one is the spectrum file stored in IAEA ASCII format and other is report file containing peak energy and peak area data. The information about sample, irradiation and counting conditions, background spectra are retrieved from QAQCData database. GammaLab takes nuclear data such as gamma lines, emission probabilities, half-lives, and k ₀ factors from NucData database. The sample results which contain elemental concentrations with uncertainties are stored in the QAQCData database. The program has been evaluated by analyzing several hundred spectra and results were found satisfactory.