PGNAA Spectral Classification of Metal with Density Estimations. (arXiv:2208.13836v1 [cs.LG])

For environmental, sustainable economic and political reasons, recycling
processes are becoming increasingly important, aiming at a much higher use of
secondary raw materials. Currently, for the copper and aluminium industries, no
method for the non-destructive online analysis of heterogeneous materials are
available. The Promt Gamma Neutron Activation Analysis (PGNAA) has the
potential to overcome this challenge. A difficulty when using PGNAA for
real-time classification arises from the small amount of noisy data, due to
short-term measurements. In this case, classical …

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