149PR 252CF SF DECAY 74CLZX FISSION FRAGMENT ISOMERS POPULATED BEFORE B DECAY IN DEEXCITATION OF FISSION FRAGMENTS OBSERVED THROUGH XG AND GG COINCIDENCES. MASS ASSIGNMENTS, ENERGIES AND LIFETIMES MEASURED IN 6-PARAMETER EXPERIMENT WITH TWO FISSION, ONE GE(LI) AND ONE SI(LI) DETECTORS OTHERS: 72CLZN (THESIS FROM THE SAME GROUP AS 74CLZX), 70WA05 (ALSO 66WAZX FROM THE SAME GROUP) Unplaced Gammas 54.7(1) 183(27) 143(1) ------------------------------------------------------------------------------ Levels ------------------------------------------------------------------------------ E(level) JPI T1/2 E(gamma) Ig(*=total) Mult ------------------------------------------------------------------------------ 0.0 58.0(1) 22.9 NS 18 58.0(1) 421(7) ------------------------------------------------------------------------------