Development of web software for determining element concentrations based on the k0 standardization method of neutron activation analysis

This work presents the development and validation of the K0WEB software dedicated to the determination of elemental concentrations based on the kstandardization method of Neutron Activation Analysis NAA This method recognized for its high accuracy enables multielement analyses of samples without the need for standards relying on the precise characterization of facilities and the use of nuclear parameters such as k0factors Q and decay constants The system stands out for its innovative webbased architecture and the automation of nuclear data import providing originality and operational autonomy The software integrates essential correctionssuch as cascade summing geometry factor and allows stepbystep monitoring of calculations interactive visualization and report generation The validation of K0WEB was carried out by comparing its results with those of the K0IPEN program previously submitted to an international intercomparison exercise of the International Atomic Energy Agency IAEA ensuring the reliability of the new system The experimental part employed standardized data from IAEATECDOC2026 Concentration efficiency and thermal and epithermal flux parameter calculations were performed according to methodologies established in the literature with emphasis on the bare triple monitor method and the cadmium ratio method Additionally an uncertainty analysis based on error propagation and covariance matrix was applied The results demonstrated the validation of K0WEB and it can be concluded that K0WEB represents an innovative accurate and efficient solution for application in NAA laboratories