| Zugriffsnummer | 23399 |
| Dokumenttyp | Bericht |
| Sprache | Englisch |
| Titel | 124-Sb - activity measurement and determination of photon emission intensities |
| Autor(in); Institution |
Bé, Marie-Martine; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Chauvenet, B.; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Amiot, M.-N; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Bobin, C.; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Lépy, M.-C.; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Branger, T.; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Lanièce, I.; Laboratoire National Henri Becquerel, CEA, Gif-sur-Yvette Cedex, FRANCE
Luca, A.; Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, ROMANIA
Sahagia, M.; Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, ROMANIA
Wätjen, A.-M.; Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, ROMANIA
Kossert, Karsten; 6.1, Radioaktivität, PTB-Braunschweig
Ott, Oliver; 6.1, Radioaktivität, PTB-Braunschweig
Nähle, Ole Jens; 6.1, Radioaktivität, PTB-Braunschweig
Dryak, P.; Czech Metrological Institute, Praha, CZECH REPUBLIC
Sochorovà, J.; Czech Metrological Institute, Praha, CZECH REPUBLIC
Kovar, P.; Czech Metrological Institute, Praha, CZECH REPUBLIC
Auerbach, P.; Czech Metrological Institute, Praha, CZECH REPUBLIC
Altzitzoglou, T.; Institute for Reference Material and Measurements, Geel, BELGIUM
Pommé, S.; Institute for Reference Material and Measurements, Geel, BELGIUM
Sibbens, G.; Institute for Reference Material and Measurements, Geel, BELGIUM
Ammel, R. van; Institute for Reference Material and Measurements, Geel, BELGIUM
Paepen, J.; Institute for Reference Material and Measurements, Geel, BELGIUM
Iwahara, A.; Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, Rio de Janeiro, BRAZIL
Delgado, J. U.; Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, Rio de Janeiro, BRAZIL
Poledna, R.; Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, Instituto de Radioprotecao e Dosimetria, Rio de Janeiro, BRAZIL
Johansson, L.; National Physical Laboratory, Teddington, UK
Stroak, A.; National Physical Laboratory, Teddington, UK
Bailat, C.; IRA-METAS, Lausanne, SWITZERLAND
Nedjadi, Y.; IRA-METAS, Lausanne, SWITZERLAND
String, P.; IRA-METAS, Lausanne, SWITZERLAND
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| Quelle/Jahr | (2009), Getr. Zählung |
| Schriftenreihe | Rapport CEA-R-6222 |
| ISSN | 0429-3460 |
| URL | |
| Berichtsnummer | CEA-R-6222 |
| Verlag | Gif-sur-Yvette: Commissariat à l'Energie Atomique |
| Zusammenfassung | The international traceability of antimony 124, in term of activity, is very limited. The results of 124Sb activity measurements sent to the SIR (BIPM - International System of REference, BIPM.RI(II)-K1.Sb-124) are scare. Up to now, only three laboratories have contributed. Two of them acrried out measurements using the 4πβ-γ coincidence counting technique and the third one using the 4πγ method with a well-type crystal detector. The first two results are in agreement but the last one differs significantly from them, by 2 %. The decay scheme consistency cannot be axcluded when trying to explain those discrepancies. In other respects, this nuclide emits high-energy gamma rays, and then could be selected as a valuable standard radionuclide for the calibration of gamma-ray detectors in that energy range, given well known photon intensities. Those considerations led to the proposal of an international exercise and to the realisation of this Euromet project, registered as n° 907, coordinated by CEA/List-LNE/LNHB. The first part of this exercise was dedicated to activity measurements and to their comparison. For this purpose, participants were asked to make use of all the direct measurement techniques available in their laboratory in order to confirm or not the existence of possible biases specific to some measuring methods. In addtion, this exercise offered the opportunity of improving the uncertainties of the gamma-ray intensities. Then, participants were asked, in the second part of the previous published values and new decay scheme data are proposed. Eight international laboratories participated in this exercise. |
Zitierung
Bé, M.-M., Chauvenet, B., Amiot, M.-N., Bobin, C., Lépy, M.-C., Branger, T., Lanièce, I., Luca, A., Sahagia, M., Wätjen, A.-M., Kossert, K., Ott, O., Nähle, O. J., Dryak, P., Sochorovà, J., Kovar, P., Auerbach, P., Altzitzoglou, T., Pommé, S., Sibbens, G., Ammel, R. V., Paepen, J., Iwahara, A., Delgado, J. U., Poledna, R., Johansson, L., Stroak, A., Bailat, C., Nedjadi, Y., & String, P. (2009). 124-Sb - activity measurement and determination of photon emission intensities (Report No. CEA-R-6222). Gif-sur-Yvette: Commissariat à l'Energie Atomique.