Charge radii and magnetic moments of odd- A 183-189 Pb isotopes

Isotope shifts and hyperfine splitting parameters have been measured for the neutron-deficient odd-mass lead isotopes 183-189 Pb . The measurement was performed at the ISOLDE (CERN) online mass separator using the in-source resonance ionization spectroscopy technique. The nuclear root mean square charge radii 〈 r 2 〉 and the electromagnetic moments μ and Q S have been deduced. They follow the smooth trend of the heavier isotopes and indicate the absence of deformation.