Conversion electron measurement of isomeric primary transitions in196, 198, 199, 200, 201Pb

The transition energies of nine low energy primary transitions from high spin isomers in^{196, 198, 199, 200, 201}Pb have been measured with conversion electron spectroscopy usinge ^? e ^? ande ^? γ coincidences.B(E2) values as deduced from the measured lifetimes and transition energies are discussed in terms of seniority shell model configurations and of a quasiparticle Tamm-Dancoff approach using the surface delta interaction. A revised discussion of the effectiveE2 charge in neutron deficient Pb isotopes is presented.