Lifetimes of the yrast states in Xe-120 and the ground state band below and
above band crossing in Te-118 have been measured by DSAM in the Cd-111(C-1
2,3n) reaction and by DSAM and RDM in the Ag-109(C-13,p3n) reaction, respec
tively. The experimental data are compared with calculation done in the fra
mework of the IBM1 model in the O(6) and SU(5) limits.