Masses of 98Pd, 99Pd, and 100Pd

The Q values of the reactions 96Ru(16O,/sup 14en-dash12/C), /sup 98en-dash100/Pd have been simultaneously measured using a quadrupole-dipole-dipole-dipole magnetic spectrometer. The result for the (16O,14C) reaction is Q +- -12.529 +- 0.020 MeV, from which we deduce the first measured mass excess of 98Pd: -81.303 +- 0.022 MeV. The Q value for the (16O,13C) reaction is determined to be -11.723 +- 0.020 MeV, from which we obtain -82.214 +- 0.022 MeV for the mass excess of 99Pd. This value is the first direct measurement of the mass of 99Pd, and disagree with a previously tabulated value. For the (16O,12C) reaction, Q = -5.599 +- 0.026 MeV, which leads to a mass excess for 100Pd of -85.213 +- 0.027 MeV, in agreement with a previous measurement using light ions. A mass excess of -87.138 +- 0.022 MeV for 106Cd, measured with the 104Pd(16O,14C) reaction, is also in excellent agreement with a tabulated value