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Non-destructive analysis of parcels using a tagged 252Cf source and time of flight technique has been studied.The method of material recognition is by measuring simultaneously the transmission of neutron and gamma ray to determine the average atomic number.The attenuation for neutron and gamma-ray are
Non-destructive analysis of parcels using a tagged 252Cf source and time of flight technique has been studied. The method of material recognition is by measuring simultaneously the transmission of neutron and gamma ray to determine the average atomic number. Attenuation to neutron and gamma- ray are