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Short-lived Isotopes of Lanthanum, Cerium and Praseodymium Studied by SISAK-technique

Gunnar Skarnemark (Institutionen för kärnkemi)
Journal of Inorganic Chemistry Vol. 36 (1974), p. 1689.
[Artikel, refereegranskad vetenskaplig]

Short-lived, neutron-rich isotopes of the rare earth elements La, Ce and Pr have been studied by the means of a continuous solvent extraction separation method (SISAK). Half-lives, energies and relative intensities are reported for γ-rays attributed to 40 ± 3 sec 144La, 20 ± 5 sec 145La, 11 ± 1 sec 146La, 58 ± 3 sec 147Ce, 45 ± 5 sec 148Ce and 9·1 ± 0·4 sec 150Pr. Indirect evidence for the isolation of 5 sec 149Ce and 5–10 sec 150Ce is also presented along with upper half-life limits of 5 sec for 147La and 148La.

Nyckelord: RADIOACTIVITY {+144},{+145},{+146}La,{+147},{+148}Ce,{+150}Pr; measured E|g,I|g,T{-1/2}. {+147},{+148}La,{+149},{+150}Ce measured upper limit on T{-1/2}.



Denna post skapades 2008-02-19. Senast ändrad 2008-02-19.
CPL Pubid: 68346

 

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