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. 2012 Sep;70(9):2222-6.
doi: 10.1016/j.apradiso.2012.02.103. Epub 2012 Mar 2.

Standardization of a 85Sr solution by three methods

R Broda  1 , T Dziel, A Muklanowicz
Affiliations

Standardization of a 85Sr solution by three methods

R Broda et al. Appl Radiat Isot. 2012 Sep.

Abstract

A (85)Sr solution was measured in two liquid scintillation (LS) counters. Scintillation pulses from the delayed transitions in the (85)Sr decay were by and large lost as the dead time of the LS-counter was much longer than the lifetime of the (85)Rb excited level. The registration probability of these pulses has been defined and introduced into the counting efficiency calculation. The results of the (85)Sr solution standardization by the CIEMAT/NIST and the TDCR methods relative to the results from the 4π(LS)-γ coincidence and anticoincidence method were 0.997±0.012 and 0.971±0.019, respectively.

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