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Decay Properties of 144-146La

Gunnar Skarnemark (Institutionen för kärnkemi)
J. Inorg. Nucl. Chem Vol. 39 (1977), p. 1487-1493.
[Artikel, refereegranskad vetenskaplig]

γ-ray singles and coincidence measurements have been performed on the neutron-rich nuclides 144La, 145La and 146La, produced in thermal neutron-induced fission of 235U. The studies were facilitated by the combination of a gas jet recoil transportation (GJRT) system with the rapid on-line chemical separation system SISAK. Half-lives of 42.1±0.7 s, 25.2±2.6 s and 8.5±1.0 s were obtained for 144La, 145La and 146La, respectively. Several new γ-ray energies have been assigned to each of the nuclides, and partial decay schemes are proposed for 144La and 146La together with a preliminary partial decay scheme for 145La.

Nyckelord: RADIOACTIVITY {+144},{+145},{+146}La; measured E|g,I|g,|g|g-coin,T{-1/2}. {+144},{+145},{+146}Ce deduced level.

Denna post skapades 2008-02-19. Senast ändrad 2008-02-19.
CPL Pubid: 68354


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