| Autor: |
Finch, Z., Seiner, B., Arrigo, L., Strivens, J., Keillor, M., Hossbach, T., Myers, A., Gill, G. |
| Předmět: |
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| Zdroj: |
Journal of Radioanalytical & Nuclear Chemistry; Mar2016, Vol. 307 Issue 3, p2451-2458, 8p, 2 Diagrams, 5 Charts |
| Abstrakt: |
This project is focused on developing a geochronology tool enabling age dating of coastal marine sediments in the 100-1000 year age range. The technique employs the Si/P radio-chronometer with an ultra-low-background gas proportional beta detector with a background count rate approaching 10 counts per day (cpd), which will require significant decontamination of radiogenic nuclides present in the original sediment samples. This paper describes the multiple physical and chemical separation methods employed to maintain a high final chemical yield of P while reducing the radiogenic contributions. The final purified P samples had, on average 100 ± 7 % chemical yields with no quantifiable gamma emissions present. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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