Development of web software for determining element concentrations based on the k0 standardization method of neutron activation analysis
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International Journal of Advanced Engineering Research and Science
Resumo
This work presents the development and validation of the K0-
WEB software, dedicated to the determination of elemental concentrations
based on the k₀-standardization 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 k0-
factors, Q₀, and decay constants. The system stands out for its innovative
web-based architecture and the automation of nuclear data import,
providing originality and operational autonomy. The software integrates
essential corrections—such as cascade summing, geometry factor, and
allows step-by-step monitoring of calculations, interactive visualization, and
report generation. The validation of K0-WEB was carried out by comparing
its results with those of the K0-IPEN 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 IAEA-TECDOC-2026.
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 K0-WEB, and it can be concluded that K0-WEB represents
an innovative, accurate, and efficient solution for application in NAA
laboratories.
Como referenciar
KAISER, THIAGO J.S.; DIAS, MAURO da S.; SEMMLER, RENATO. Development of web software for determining element concentrations based on the k0 standardization method of neutron activation analysis. International Journal of Advanced Engineering Research and Science, v. 12, n. 9, p. 60-67, 2025. DOI: 10.22161/ijaers.129.9. Disponível em: https://repositorio.ipen.br/handle/123456789/49601. Acesso em: 13 Apr 2026.
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