| Zugriffsnummer | 16282 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Half-life measurements of 87Rb by liquid scintillation counting |
| Autor(in); Institution |
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
|
| Quelle/Jahr | Applied Radiation and Isotopes: 59 (2003), 377 - 382 |
| ISSN | 0969-8043 |
| Verlag | Oxford: Pergamon Press |
| Freie Schlagworte | liquid scintillation counting ; CIEMAT/NIST method ; half-life measurement ; beta spectrum |
| Zusammenfassung | The specific activity of 87Rb was measured by means of 4πβ liquid scintillation counting in a two-photomultiplier-tube spectrometer. 3H-efficiency tracing was used togehter with the CIEMAT/NIST method to obtain the detection efficiency. For this purpose a new parameterization of the shape factor for the third forbidden non-unique β-transition was performed. The hygroscopic behaviour of the salts used for sample preparation was studied. The half-life of 87Rb was found to be T1/2 = 4,967(32) 1010a. |
