On the two first excited K = 0 bands in 238U and 240Pu

E0-enhanced spectra of conversion electrons taken after (α,α′) and (α,2n) reactions and after projectile Coulomb excitation improve our knowledge about first and second excited bands in 238 U and 240 Pu built on 0 2 + and 0 3 + states which lie anomalously close together. The two bands are of different structure.