In this paper

we investigate validity of the mean-vector-test template match arithmetic(MTMA) with high-resolution γ-ray spectra simulated from fictitious plutonium components with different abundances of 239Pu.The trial shows that identification capability of MTMA is strongly correlated with the level of significance

and weakly correlated with the template structures given a maximum template structure.The MTMA to be used to identify genuine plutonium components would accept

at the level of significance

a certain degree of tolerance to the difference between individual components of the same type.