DISTRIBUTION OF NUCLEAR CHARGE IN THE PROTON-INDUCED FISSION OF Th232: PART II

Abstract
The fractional chain yields of Ga72, Br82, Ag112, and La140, formed in the proton-induced fission of Th232, have been measured at proton energies ranging between 12.8 and 82.4 Mev. The yields are compared with data previously obtained by others from uranium and thorium fission, and with predictions made by Coryell.During the course of this investigation, the half-life of Zn72 was checked and found to be 46.5 ± 0.1 hours, rather than 49 hours as previously reported.