It is shown that artificial radioactivity can be initiated under conditions of a glow-discharge plasma. When analyzing the isotopic and elemental composition in the near-surface region of Pd and Ni cathodes, initial and those treated for 40 hours under conditions of deuterium- or protium-containing plasma, changes were detected, respectively, in the isotopic ratios of Pt and Pb impurity isotopes in the Pd cathode and of Fe, Cu, and Zn in the Ni cathode, as well as a significant reduction in the amount of these impurity elements in the cathodes and the formation of W isotopes in the Pd cathode. Possible nuclear processes that cause the established artificial radioactivity are considered.
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