Abstract
Photon activation analysis is a suitable method for nondestructive analysis of Au, Ag and Cu because of the following advantages: the nuclear parameters (cross-sections, threshold energies) for the (γ, n)-reactions of the three elements as well as the attenuation coefficients of the activating bremsstrahlung and the emitted gamma radiation are quite similar. The severe self-shielding effects of thermal neutron activation analysis do not exist and these effects can be ignored or easily and accurately accounted for.
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References
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Reimers, P., Lutz, G.J. & Segebade, C. Photon activation analysis of coins and objects of art. J. Radioanal. Chem. 39, 93–97 (1977). https://doi.org/10.1007/BF02517215
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DOI: https://doi.org/10.1007/BF02517215