| Zugriffsnummer | 36360 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | BIPM comparison BIPM.RI(II)-K1.Th-228 of activity measurements of the radionuclide 228Th |
| Autor(in); Institution |
Michotte, C.; Bureau International des Poids et Mesures (BIPM), Sèvres, FRANCE
Ratel, G.; Bureau International des Poids et Mesures (BIPM), Sèvres, FRANCE
Courte, S.; Bureau International des Poids et Mesures (BIPM), Sèvres, FRANCE
Lucas, L.; National Institute of Standards and Technology (NIST), Gaithersburg MD, USA
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
Nähle, Ole Jens; 6.1, Radioaktivität, PTB-Braunschweig
Ott, Oliver; 6.1, Radioaktivität, PTB-Braunschweig
|
| Quelle/Jahr | Metrologia: 53 (2016), Tech. Suppl., 1 - 11 |
| Artikelnummer | 06013 |
| Availability | [online only] |
| ISSN | 0026-1394 |
| DOI | |
| URL | |
| Verlag | Bristol [u.a.]: IOP [u.a.] |
| Zusammenfassung | Since 1986, two national metrology institutes (NMI) have submitted two samples of known activity of 228Th to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.Th-228. The values of the activity submitted were about 300 kBq and 2 MBq. A key comparison reference value (KCRV) has been evaluated for the first time for 228Th. There is only one result remaining in the BIPM.RI(II)-K1.Th-228 comparison, the 1986 NIST result being outdated. The degrees of equivalence between each equivalent activity measured in the SIR and the KCRV have been calculated and the results are given in the form of a table. A graphical presentation is also given. |
