The k 0 -INRIM software: a tool to compile uncertainty budgets in Neutron Activation Analysis based on k 0 -standardisation

A software package was developed to evaluate the uncertainty of results provided by neutron activation laboratories adopting the alt;iagt;kalt;/iagt;alt;subagt;0alt;/subagt;-standardisation method in trace elements analysis. The outputs are stand-alone and editable spreadsheet budgets based on a measurement equation including more than forty input quantities and written to consider the effect of correlations. The program, called alt;iagt;kalt;/iagt;alt;subagt;0alt;/subagt;-INRIM, is presented to potential users and freely distributed alongside the user's manual. The measurement equation is reported and the main features are described together with the results obtained in a validation test. An uncertainty budget compiled using the software output is given as an example.