An electroplating method for the preparation of Pa sources is described
and themain factors (such as pH value of solution electroplating time and current density)influencing the electroplating of Pa are tested and discussed with 233Pa as a tracer. Athin and uniform electroplating Pa-Layer of 1mg/cm2 thick on thin stainless steeldisk was obtained. The Pa source was measured by HPGe detector to determine thechemical efficiency.