Narrow Results

A new technique for gamma-ray and X-ray spectral analyses is described. It employs an artificial neural network in order to meet requirements of easiness, compactness and promptness of the analysis. This technique only needs a suitable set of component spectra for the network training. Performance test of the network shows good results for gamma-ray spectra obtained by a 3"×3" NaI(Tl) spectrometer, and both for gamma- and X-ray spectra obtained with an 80cc high purity germanium detector. Degradation conditions and applicability to a PIXE analysis are discussed.

A new technique of spectrum analysis for PIXE based on the linear associative neural network has been developed. The network has high capability in the association of almost all elements across the periodic table in samples, in the quantification with wide dynamic range of the concentrations, and in the analysis speed.