Observation of new states in the third well of the 231Th fission barrier

1 January 1984

journal article
Published by EDP Sciences in Journal de Physique Lettres

Vol. 45 (17) , 843-849
https://doi.org/10.1051/jphyslet:019840045017084300

Abstract

A simultaneous measurement of the 230Th(d, pf) fission probability and the associated fission fragment angular distribution reveals the presence of new resonant states of the fissioning 231Th nucleus at excitation energies around 5.9 MeV. These states are interpretated as high spin members of a pair of rotational bands, thus confirming the previous evidence of a third minimum in the fission barrier of 231Th at octupole deformations

Keywords

This publication has 7 references indexed in Scilit:

${}^{230}{Th}$ fission cross section near 715 keV
Physical Review C, 1981
Rotational Bands in Asymmetrically Deformed ${}^{231}{Th}$
Physical Review Letters, 1978
Evidence for Rotational Bands near the ${}^{232}{Th} (n, f)$ Fission Threshold
Physical Review Letters, 1975
The moment of inertia and the energy gap of fission isomers
Nuclear Physics A, 1973
Nuclear spectroscopy of highly deformed 231Th
Nuclear Physics A, 1972
Exact Calculation of the Penetrability Through Two-Peaked Fission Barriers
Physical Review C, 1970
Shell effects in nuclear masses and deformation energies
Nuclear Physics A, 1967