Comparison of the TriCarb and Hidex 300 SL technique using measurements of 241Pu and 90Sr on various samples

• 241Pu and 90Sr activities of various samples agree between 2 LSC apparatus.
• The 90Sr results are in agreement with IAEA-375 reference values.
• Hidex 300 SL works excellent as routine apparatus for 241Pu and 90Sr measurements.

Soil and radioactive slurries were analyzed for the presence of beta emitting 241Pu and 90Sr. The comparison study between two different LSC apparatus, TriCarb 2200/2550 and Hidex 300 SL, shows good agreement for the quench corrected 241Pu activity concentrations. The 90Sr activity concentrations of most soil samples were in agreement, and were confirmed by the recommended IAEA-375 value. The Hidex 300 SL is an excellent apparatus to measure pure β-emitters of routine samples.