An earlier penetrability calculation through a triple-humped barrier for ${}_{}{}^{234}{}_{}{}^{}\mathrm{Th}$ nucleus by Sharma and Leboeuf failed to reproduce the right order of magnitude for penetrability. It is shown here that one can obtain the correct penetrability by assuming that Back et al. actually determined the parameters of the second saddle, third minimum, and the third saddle for ${}_{}{}^{234}{}_{}{}^{}\mathrm{Th}$ from an analysis of their ($t, \mathrm{pf}$) fission data. The height of the first barrier is assumed to be that given by microscopic calculations for this nucleus.

NUCLEAR REACTIONS, FISSION Fission penetrability calculated through triple-humped potential barrier in ${}_{}{}^{234}{}_{}{}^{}\mathrm{Th}$, quantitative resolution of thorium anomaly along the lines suggested by Möller and Nix.

• Received 16 September 1977

DOI:https://doi.org/10.1103/PhysRevC.18.1531