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  • Computer-assisted uncertainty assessment of k[sub]0-NAA measurement results
    Bučar, Tinkara ; Smodiš, Borut
    In quantifying measurement uncertainty of measurement results obtained by the k0-based neutron activation analysis (k0-NAA), a number of parameters should be considered and appropriately combined in ... deriving the final budget. To facilitate this process, a program ERON (ERror propagatiON) was developed, which computes uncertainty propagation factors from the relevant formulae and calculates the combined uncertainty. The program calculates uncertainty of thefinal result mass fraction of an element in the measured sample taking intoaccount the relevant neutron flux parameters such as Ž and f, including their uncertainties. Nuclear parameters and their uncertainties are taken fromthe IUPAC database (V.P. Kolotov and F. De Corte, Compilation of k0 and related data for NAA). Furthermore, the program allows for uncertainty calculations of the measured parameters needed in k0-NAAČ Ž (determined with either the Cd-ratio or the Cd-covered multi-monitor method), f (using the Cd-ratio or the bare method), Q0 (using the Cd-ratio or internal comparator method) and k0 (using the Cd-ratio, internal comparator or the Cd subtraction method). The results of calculations can be printed or exported to text or MS Excel format for further analysis. Special care was taken to make the calculation engine portable by having possibility of its incorporation into other applications (e.g., DLL and WWW server). Theoretical basis and the program are described in detail, and typical results obtained under real measurement conditions are presented.
    Vir: Nuclear instruments and methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment. - ISSN 0168-9002 (Vol. 595, 2008, str. 647-652)
    Vrsta gradiva - članek, sestavni del
    Leto - 2008
    Jezik - angleški
    COBISS.SI-ID - 22040871

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