Short-lived Isotopes of Lanthanum, Cerium and Praseodymium Studied by SISAK-technique
Journal article, 1974
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.
{+148}La
measured E|g
I|g
{+146}La
{+147}
{+150}Pr
{+149}
{+150}Ce measured upper limit on T{-1/2}.
{+148}Ce
{+145}
RADIOACTIVITY {+144}
T{-1/2}. {+147}
Author
Gunnar Skarnemark
Department of Nuclear Chemistry
Journal of Inorganic Chemistry
Vol. 36 1689-
Subject Categories
Chemical Sciences
DOI
10.1016/0022-1902(74)80494-X