COPY K-Components for the M . 4-, M . 6-, and ml . 7-Mev Structures in the Fission of 232 Th + n L % ?

Neutron-induced angle-integrated tission cross sections of 232Thwere measured from 0.7 to 9 MeV with a nominal neutron energy resolution of 0.15 ns/m. Data were taken for the angular intervals Oto 23.4°, 0 to 33.7°,0 to 51.7°, and Oto 90°. The structures at -1.4, -1.6, and -1.7 MeV were interpreted in terms of rotational bands with K = 1/2, 3/2, and > 5/2. The approximate relative fission strengths for the K-bands are in the proportion 1.7:2.4:1.0, 0.0:2.6: LO, and 1.0:2 .8:0.0 for the three structures, respectively.