We used efficiency tracing techniques to study the micelle size effect on liquid scintillation counting of the low-energy Auger electron emitter, 55Fe. We determined micelle hydrodynamic diameters for specific LS cocktails via dynamic light scattering, and sought trends in efficiencies as a function of micelle size. The presence of Fe3+ or Mn2+ ions in the cocktails did not significantly affect micelle sizes or fluorescence quenching. We did not detect any reductions in counting efficiencies due to the micelle size effect.
Citation: Applied Radiation and Isotopes
Pub Type: Journals
Reverse micelle, liquid scintillation counting, cocktail, efficiency tracing, size effect, quenching, dynamic light scattering, Mn-54, H-3, Fe-55