NUKLEONIKA 2011, 56(1):17-21

 


APPLICATION OF NEURO-FUZZY MODEL FOR NEUTRON ACTIVATION ANALYSIS (NAA)



Hossein Khalafi1, Mohammad S. Terman1, Faezeh Rahmani2

1 Radiation Applications Research School,
Nuclear Science and Technology Research Institute, Atomic Energy Organization of Iran,
End of North Kargar Ave., P. O. Box 141441339, Tehran, Iran

2 Nuclear Engineering Faculty, Shahid Beheshti University,
Evin, Tehran, P. O. Box 1983963113, Iran



Neutron activation analysis (NAA) is a precise chemical multielemental method of analysis which is satisfactorily used for qualitative and quantitative analyses. Repeated irradiation is needed because of mal-determination of some elements due to peak overlap in qualitative analysis. In this study, NAA procedure has been modified using a neuro-fuzzy model to avoid repeated irradiation based on multilayer perceptrons network trained by the Levenberg Marquardt algorithm. This method increases the precision of spectrum analysis in the case of strong background and peak overlap.


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