| Zugriffsnummer | 24581 |
| Dokumenttyp | Zeitschriftenartikel |
| Sprache | Englisch |
| Titel | The characterisation of an intertidal sediment from the Cumbrian coastline |
| Autor(in); Institution |
Adsley, I.; AEA Technology, Harwell, Didcot, UK
Andrew, D.; Ministry of Agriculture, Fisheries and Food (MAFF), Directorate of Fisheries Research, Lowestoft, Suffolk, UK
Arnold, Dirk; 6.101, Umweltradioaktivität, PTB-Braunschweig
Bojanowski, R.; Polish Academy of Sciences (PAS), Institute of Oceanography, Sopot, POLAND
Bourlat, Y.; CEA-DIRCEN, Service Mixte de Surveillance Radiologique et Biologique (SMSRB), Montlhery Cedex, FRANCE
Byrne, A. R.; University of Ljubljana, Jozef Stefan Institute (JSI), Ljubljana, SLOVENIA
Crespo, M.-T.; CIEMAT, Madrid, SPAIN
Desmond, J.; British Nuclear Fuels plc (BNFL), Sellafield, Cumbria, UK
De Felice, P.; Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (ENEA), Roma, ITALY
Fazio, A.; Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (ENEA), Roma, ITALY
Gascón, J. L.; CIEMAT, Madrid, SPAIN
Grieve, R. S.; British Nuclear Fuels plc (BNFL), Sellafield, Cumbria, UK
Holmes, A. S.; Laboratory of the Government Chemist (LGC), Teddington, Middlesex, UK
Jerome, S. M.; National Physical Laboratory (NPL), Teddington, UK
Korun, M.; University of Ljubljana, Jozef Stefan Institute (JSI), Ljubljana, SLOVENIA
Magnoni, M.; ARPA Piemonte, Dipartmento Subprovinciale di Ivrea, Ivrea, ITALY
Odell, K. J.; Magnox Electric plc, Berkeley Technology Centre, Berkeley, UK
Popplewell, D. S.; National Radiological Protection Board (NRPB), Chilton, UK
Poupaki, I.; Athens, GREECE
Sutton, G.; Ministry of Agriculture, Fisheries and Food (MAFF), Directorate of Fisheries Research, Lowestoft, Suffolk, UK
Toole, J.; AEA Technology, Harwell, Didcot, UK
Wakerley, M. W.; Department of the Environment (DoE), Radioactive Substances Division, London, UK
Wershofen, Herbert; 6.101, Umweltradioaktivität, PTB-Braunschweig
Woods, M. J.; National Physical Laboratory (NPL), Teddington, UK
Youngman, M. J.; National Radiological Protection Board (NRPB), Chilton, UK
|
| Quelle/Jahr | Applied Radiation and Isotopes: 49 (1998), 9/11, 1295 - 1300 |
| ISSN | 0969-8043 |
| DOI | |
| Verlag | Amsterdam [u.a.]: Elsevier |
| Zusammenfassung | The characterisation of an intertidal sediment, containing enhanced levels of radioactivity, collected from the Cumbrian coast of the U.K. by the Laboratory of the Government Chemist for the department of the environment is described. A wide variety of radiochemical and instrumental techniques were used including αspectrometry, β-counting, liquid scintillation counting, γ-spectrometry, X-ray spectrometry and mass spectrometry. To derive mean values of the activity concentrations of radionuclides in the material, use was made of the technique development by Woods and Munster. This technique first critically evaluates data for technical suitability. Then, to qvoid excessive manipulation of data, calculation of the weighted (statiscical weighting is the inverse of the squared uncertainties, limited so that no one result contributes more than 50%) an unweighted means is performed, alongwith a X2 test. If the value of X2 / (n - 1) < 2, the weighted mean is accepted, otherwise a choice was made between the weighted or unweighted mean. this is done by considering if the uncertainties of both means overlapped, in which case the weighted mean was accepted and the unweighted mean if not. This enabled the derivation of a mean value, even if the data appreared to be inconsitent. In this paper, history of the material is reviewed and the data analysis technique delineated. Data are presented for the activity concentrations of 21 radionuclides, with > 2 determinations, 3 with 2 determinations and 2 with single determinations. Emphasis is placed where data appeared to be discrepant (e.g. 40K and 137Cs) where widely different measurement techniques were employed (e.g. the actinides), where there were analytical "difficulties" (e.g. uranium) or where the radionuclide is not commonlymeasured (e.g. 155Eu, 237Np and 241Pu). the material is now available to laboratories as a reference material and it is anticipated that it will be used to validate existing procedures and to research new methods of analysis. |
| Rechteinformation | 1998 The National Physical Laboratory |
Zitierung
Adsley, I., Andrew, D., Arnold, D., Bojanowski, R., Bourlat, Y., Byrne, A. R., Crespo, M.-T., Desmond, J., De Felice, P., Fazio, A., Gascón, J. L., Grieve, R. S., Holmes, A. S., Jerome, S. M., Korun, M., Magnoni, M., Odell, K. J., Popplewell, D. S., Poupaki, I., Sutton, G., Toole, J., Wakerley, M. W., Wershofen, H., Woods, M. J., & Youngman, M. J. (1998). The characterisation of an intertidal sediment from the Cumbrian coastline. Applied Radiation and Isotopes, 49(9/11), 1295–1300. https://doi.org/10.1016/s0969-8043(97)10063-x