| Zugriffsnummer | 48709 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting |
| Autor(in); Institution |
Coulon, Romain; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
Broda, Ryszard; National Centre for Nuclear Research Radioisotope Centre POLATOM, Otwock, POLAND
Cassette, Philippe; Université Paris-Saclay, CEA, LIST, Laboratoire National Henri Becquerel (LNE-LNHB), Palaiseau, FRANCE
Courte, Sammy; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
Dupire, Aldo; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
Jerome, Simon; Norges miljø- og biovitenskapelige universitet (NMBU), Ås, NORWAY
Judge, Steven; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
Liu, Haoran; National Institute of Metrology (NIM), Beijing, CHINA
Michotte, Carine; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
Nonis, Manuel; Bureau International des Poids et Mesures, Sèvres Cedex, FRANCE
|
| Quelle/Jahr | Journal of Radioanalytical and Nuclear Chemistry: 331 (2022), 3221 - 3230 |
| ISSN | 0236-5731 (PRINT) ; 1588-2780 (ONLINE) |
| DOI | |
| Verlag | Dordrecht [u.a.]: Springer Science + Business Media B.V. |
| Freie Schlagworte | Radionuclide metrology ; Key comparisons ; Liquid scintillation counting ; TDCR ; ESIR |
| Zusammenfassung | The Bureau International des Poids et Mesures (BIPM) is developing, with the support of national metrology institutes, an extension to the existing international reference system for international comparisons in radionuclide metrology. The extended system is addressing pure α-, pure β-emitting and some electron capture-decaying radionuclides. The new system is based on a custom-built liquid scintillation counter and the triple-to-double coincidence ratio (TDCR) technique. Particular emphasis was placed on long-term stability and excellent reproducibility in sample preparation. The analytical method is based on a special approach that uses the TDCR value as a parameter to compensate for fluctuations caused by changes in detection efficiency or photomultiplier asymmetries that cannot be excluded when considering very long periods. Measures for quality assurance were established. They are based on periodic controls of unquenched toluene-based liquid scintillation sources with 3H and 14C. In this way, the reproducibility of the system results is demonstrated for a test period of about twenty months. |
Zitierung
Coulon, R., Broda, R., Cassette, P., Courte, S., Dupire, A., Jerome, S., Judge, S., Kossert, K., Liu, H., Michotte, C., & Nonis, M. (2022). The new international reference system for pure α- and pure β-emitting radionuclides and some electron capture decaying radionuclides by liquid scintillation counting. Journal of Radioanalytical and Nuclear Chemistry, 331, 3221–3230. https://doi.org/10.1007/s10967-022-08337-7