We used efficiency tracing techniques to study the micelle size effect on liquid scintillation counting of the electron capture nuclide, (55)Fe. 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 Fe(3+) or Mn(2+) 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.
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| http://dx.doi.org/10.1016/j.apradiso.2013.11.080 | DOI Listing |
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