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Angular-correlation measurements were made on 12 direct cascades and 5 skip cascades in Ba. Levels in +Ba were populated from the 64-sec P decay of Cs, which was populated from the decay of mass-separated ' Xe. The most intense transitions were measured in coincidence with the first-excited state-to-ground-state transition in even-even Ba. Definite spin assignments were made for eight levels and tentative spin assignments for five levels. Values are given for the angular-correlation coefficients, and multipolarity mixing ratios are listed where applicable. Systematics for N =84 isotones are discussed in light of assignments made for Ba. RADIOACTIVITY~4 0Cs {from~4 0Xe decay); measured y-Y{&}. OBa deduced J, r. I Mass-separated Xe activity.

A total of 142 y rays were observed in the decay of the 45and 85-sec isomers of " I using an on-line isotope separator system. Of these, 116 were placed in a level scheme for " Xe consisting of 50 excited levels up to 6624 keV using results from Ge(Li) y singles and yy-coincidence measurements. Our results are compared with results from earlier decay and reaction experiments, and the levels below 2.8 MeV are compared with predictions of recent shell-model calculations. Strong P population was observed to states above 3.5 MeV which are interpreted as neutron particle-hole states. RADIOACTIUITY 36I [from 3 U(n, f)]; measured Ey Iy p~coin, Ge(Li) detectors; 3 Xe deduced levels, J, n, lpgf t. Mass-separated 3 I activity.

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