Author: R. Pacer 1
View More View Less
  • 1 Indiana University-Purdue University Department of Chemistry Fort Wayne Campus 46805 Fort Wayne Indiana (USA)
Restricted access


Aqueous Pb(II) samples, spiked with210Pb/210Bi in secular equilibrium to study container adsorption, can provide some helpful insights if one takes advantage of the Cherenkov effect. While both radionuclides give high efficiencies when counted in a scintillator cocktail medium, only210Bi has a sufficiently energetic -particle to yield an appreciable count rate in a water medium. Thus, monitoring the cocktail-to-water count rate ratio can provide important clues as to what happens during adsorption. A significant change in the ratio indicates not only disturbance of the secular equilibrium relationship, but indicates which nuclide is preferentially adsorbed.