Age dating of liquid 90 Sr- 90 Y sources

In the context of age dating of Sr, the selective adsorption of zirconium ions from the mixture with strontium and yttrium by adsorbents based on TiO with a chemically modified surface was investigated. The general features of the separation process of strontium, yttrium, and zirconium in batch cond...

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Bibliographic Details
Published inApplied radiation and isotopes Vol. 200; p. 110906
Main Authors Vasylyeva, Hanna, Mironyuk, Ivan, Strilchuk, Mykola, Mayer, Klaus, Dallas, Liz, Tryshyn, Volodymyr, Maliuk, Igor, Hryhorenko, Maryna, Zhukov, Oleksandr, Savka, Khrystyna
Format Journal Article
LanguageEnglish
Published England 28.06.2023
Subjects
Liquid scintillation counting
Age-dating
Zr
ICP-MS
Titanium dioxide
Sr
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Summary:In the context of age dating of Sr, the selective adsorption of zirconium ions from the mixture with strontium and yttrium by adsorbents based on TiO with a chemically modified surface was investigated. The general features of the separation process of strontium, yttrium, and zirconium in batch conditions were determined. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to analyze the initial and residual concentrations of the studied cations. Separation of Zr and Sr from a liquid source containing Sr- Y using adsorbents based on TiO was performed for the first time. The ratio of Zr/ Sr was measured, and the age of liquid Sr- Y sources was determined. In addition, we studied the age dating of Sr- Y sources using a combination of liquid-scintillation counting of Sr and ICP-MS measurement. The results of both methods - the method of age-dating with the chemical separation of isotopes and the combination of LSC and ICP-MS analysis - agree very well and thus serve for cross-validation. Moreover, the combination of the two methods increases the confidence in the age-dating results of Sr- Y sources.
ISSN:1872-9800