Activity standardization of 47Sc by LS methods
J Marganiec-Gałązka1, N Lisowska1, A Kamiński1
1National Centre for Nuclear Research, Radioisotope Centre POLATOM, Andrzeja Sołtana 7, 05-400, Otwock, Poland.
None:
This paper presents the results of the activity determination of a scandium-47 solution carried out in the Laboratory of Radioactivity Standards in the Radioisotope Centre POLATOM. The activity concentration of a47Sc solution was measured by three liquid scintillation methods: the 4πβ(LS)-γ coincidence counting, triple-to-double coincidence ratio (TDCR) method, and liquid scintillation counting applying the CIEMAT/NIST method. All methods gave consistent results for the activity concentration. The final relative uncertainty of the activity was found to be 0.40 %.
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