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Rocco, N. D.; Arnquist, I. J.; Back, H. O.; Bliss, M.; Bronikowski, M.; di Vacri, M. L.; Edwards, E. R.; Hackett, B. R.; Hoppe, E. W.; Lyons, S. M.; Rosero, R.; Seifert, A.; Swindle, A.; Yeh, M.
Journal of radioanalytical and nuclear chemistry, 10/2023, Letnik: 332, Številka: 10Journal Article
Intrinsic 40 K radioactive backgrounds from impurities of natural K in liquid scintillation cocktails have previously been demonstrated to limit their use in ultra-sensitive applications. This work explores two methodologies in parallel for the reduction of 40 K backgrounds in the cocktails, and lays the groundwork for use in ultra-sensitive applications. In one method, alternative low-K liquid scintillation matrix constituents were identified and in the other, a simple purification method for single components and finished cocktails was developed. Both methods were verified via ICP-MS analysis. Liquid scintillation counting of selected purified cocktails demonstrated background reduction, improved stability, and enhanced performance. The best performing purified cocktail was also counted on a custom-built ultra-low background liquid scintillation counter, with results below the detector background.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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