Half-Life ofPb210
| Autor: | J. L. Kulp, Wallace S. Broecker, W. R. Eckelmann |
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| Rok vydání: | 1960 |
| Předmět: | |
| Zdroj: | Physical Review. 118:698-701 |
| ISSN: | 0031-899X |
| DOI: | 10.1103/physrev.118.698 |
| Popis: | A new determination of the half-life of ${\mathrm{Pb}}^{210}$ has been made by the geological method. Pb${\mathrm{Cl}}_{2}$ extracted from uranium minerals in secular equilibrium was used to calibrate a thick-source scintillation counter for ${\mathrm{Po}}^{210}$ alpha particles. Using this calibration the absolute activity of ${\mathrm{Po}}^{210}$ in partial equilibrium with a known number of ${\mathrm{Pb}}^{210}$ atoms prepared from the decay of a measured quantity of radon was determined. From these data a half-life of 21.4\ifmmode\pm\else\textpm\fi{}0.5 years was obtained for ${\mathrm{Pb}}^{210}$. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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