| Zugriffsnummer | 20120 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Measurement of the shape-factor functions of the long-lived radionuclides 87Rb, 40K and 10Be |
| Autor(in); Institution |
Grau Carles, Agustin; Instituto de Matem.aacute.ticas y Física Fundamental (CSIC), Madrid, SPAIN
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
|
| Quelle/Jahr | Nuclear Instruments and Methods in Physics Research A: 572 (2007), 2, 760 - 767 |
| ISSN | 0168-9002 |
| DOI | |
| Verlag | Amsterdam: Elsevier |
| Klassifikationscode | PACS: 23.40.-s ; PACS: 29.40.Mc ; PACS: 29.40.Ka |
| Freie Schlagworte | Radioactivity 87Rb (beta) ; 40K (β) analyzed β-decay shape factors ; Measurement of β spectra shape factors |
| Zusammenfassung | Accurate half-life values for both 87Rb and 40K are essential for geochronological purposes. In another contrext, the activity determination of the cosmogenic radioisotope 10Be requires a better accuracy, too, so that the records of this radioisotope on the Earth's surface and inside meteorites can be interpreted. Liquid-scintillation counting is an excellent tool for carrying out precise β-ray nuclide standardizations. However, the accuracy of the current standardization methods is frequently limited by the presence of inaccuracies in with theoretical predictions. the measured shape-factor functions of 87Rb and 10Be were in good agreement with theory, but for 40K, some unexpected deviations were detected which make further investigations necessary. |
