| Zugriffsnummer | 24966 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | Activity determination and nuclear decay data of 113mCd |
| Autor(in); Institution |
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
Nähle, Ole Jens; 6.1, Radioaktivität, PTB-Braunschweig
Warwick, P. E.; GAU, Radioanalytical Laboratories, National Oceanography Centre, Southampton, UK
Wershofen, Herbert; 6.1, Radioaktivität, PTB-Braunschweig
Croudace, I. W.; GAU, Radioanalytical Laboratories, National Oceanography Centre, Southampton, UK
|
| Quelle/Jahr | Applied Radiation and Isotopes: 69 (2011), 2, 500 - 505 |
| ISSN | 0969-8043 |
| DOI | |
| Verlag | Amsterdam: Elsevier |
| Freie Schlagworte | Cd-113m ; liquid scintillation counting ; TDCR ; CIEMAT/NIST ; free parameter model |
| Zusammenfassung | The radionuclide 113mCd was extracted from a Cd component which has been irradiated in a research reactor during its routine operation. A validated separation procedure was then used to obtain a 113mCd solution of high radiochemical purity. The solution was measured by means of liquid scintillation counting for activity determination. To this end, the CIEMAT/NIST efficiency tracing method as well as the triple-to-double coincidence (TDCR) counting technique were used. Measurements in a low-background gamma-ray spectrometer were applied to identify any potential photon-emitting impurities and to measure the 263.7 keV photons from the isomer transition. A gamma emission probability of 0.01839(29) % was determined for this line. The liquid scintillation measurements were also used to evaluate the half-life of 113mCd. The decay was followed for about 11 months and a half-life T½ = 13.97(13) γ was obtained. |
