Summary
In a previous paper an incomplete correspondence between the γ levels and the long range α-particles levels for the nuclide 21484 Po has been noticed. Now I accomplished an analogous research for the nuclide 21284 Po. Also in this case, from the experimental determination of the γ-γ cascades, I was able to obtain a new level scheme of this nuclide. The partial lack of correspondence between γ levels and long range α levels is existing again. In conclusion this fact must be considered a general property for the radioactive nuclides emitting long range α-particles.
Riassunto
In un lavoro precedente era stato notato, per il nuclide 21484 Po, l’incompleto accordo tra i livelli energetici dedotti dallo spettro di raggi γ e i livelli energetici individuati dalle particelle α di lungo percorso. Ora ho compiuto analogo studio sul nuclide 21284 Po e, valendomi della determinazione sperimentale delle cascate γ-γ da questo emesse, ho potuto giungere allo scheme dei livelli γ del 21284 Po. Di nuovo è risultato il disaccordo parziale ma sensibile tra i livelli γ e i livelli α. Questo fatto deve quindi considerarsi proprietà comune ai nuclidi radioattivi emettenti particelle α di lungo percorso finora noti.
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Demichelis, F. On the decay scheme of 21284 Po(ThC). Nuovo Cim 12, 407–412 (1954). https://doi.org/10.1007/BF02790736
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DOI: https://doi.org/10.1007/BF02790736