| Zugriffsnummer | 12820 |
| Dokumenttyp | Bericht |
| Sprache | Englisch |
| Titel | EUROMET Action 428: Transfer of Ge detectors efficiency calibration from point source geometry to other geometries |
| Autor(in); Institution |
Altzitzoglou, Timotheos; CEC-JRC Institute for Reference Materials and Measurements, Geel, BELGIUM
Arnold, Dirk; 6.12, Umweltradioaktivität, PTB-Braunschweig
Bronson, Frazier; Canberra, Meriden, Conn., USA
Capote Noy, Roberto; Centro de Estudios Aplicados al Desarollo Nuclear, Habana, CUBA
Mainegra Hing, Ernesto; Centro de Estudios Aplicados al Desarollo Nuclear, Habana, CUBA
Décombaz, Marc; Institut de Radiophysique Appliquée, IRA-OFMET, Lausanne, SWITZERLAND
Laedermann, Jean-Pascal; Institut de Radiophysique Appliquée, IRA-OFMET, Lausanne, SWITZERLAND
De Corte, Frans; University of Gent, Institute for Nuclear Science, Laboratory of Analytical Chemistry, Gent, BELGIUM
De Wispelaere, Antoine; University of Gent, Institute for Nuclear Science, Laboratory of Analytical Chemistry, Gent, BELGIUM
Edelmaier, Robert; Bundesamt für Eich- und Vermessungswesen (BEV), Gruppe Eichwesen, Metrological Service, Wien, AUSTRIA
Herrera Peraza, Eduardo; Instituto Superior de Ciencias y Tecnologias Nucleares, Habana, CUBA
Lopez Pino, Neivy; Instituto Superior de Ciencias y Tecnologias Nucleares, Habana, CUBA
Abrahantes Quintana, Arian; Instituto Superior de Ciencias y Tecnologias Nucleares, Habana, CUBA
Klemola, Seppo; STUK, Radiation and Nuclear Safety Authority, Helsinki, FINLAND
Korun, Matjaz; Jozef Stefan Institute, Ljubljana, SLOVENIA
Vidmar, Tim; Jozef Stefan Institute, Ljubljana, SLOVENIA
Kr.aacute.lik, Miroslav; Czech Metrological Institute - Inspectorate for Ionizing Radiation, Praha, CZECH REPUBLIC
Novotny, Tom.aacute.s; Czech Metrological Institute - Inspectorate for Ionizing Radiation, Praha, CZECH REPUBLIC
Neder, Hermino; Max-Planck-Institut für Kernphysik, Heidelberg, GERMANY
Pommé, Stefaan; SCK - CEN, GKD, Mol, BELGIUM
Sima, Octavian; Bucharest University, Physics Department, Bucharest, ROMANIA
Ugletveit, Finn; Norwegian Radiation Protection Authority, Osteras, NORWAY
Velzen, Leo P. M. van; NRG-RE, Arnhem, THE NETHERLANDS
Lépy, Marie-Christine; DAMR-LNHB, Gif-sur-Yvette, FRANCE
|
| Quelle/Jahr | (2000), 59 S. |
| Schriftenreihe | Rapport CEA-R-5894 |
| Herausgeber(in) |
Lépy, Marie-Christine; DAMR-LNHB, Gif-sur-Yvette, FRANCE
|
| ISSN | 0429-3460 |
| URL | |
| Berichtsnummer | Rapport CEA-R-5894(E) |
| Zusammenfassung | The EUROMET project 428 examines efficiency transfer computation for Ge gamma-ray spectrometers when the efficiency is known for a reference point source geometry in the 60 keV to 2 MeV energy range. For this, different methods are used, such as Monte Carlo simulation or semi-empirical computation. The exercise compares the application of these methods to the same selected experimental cases to determine the usage limitations versus the requested accuracy. For carefully examining these results and traying to derive information for improving the computation codes, this study was limited to a few simple cases, from an experimental efficiency calibration for point source at 10-cm source-to-detector distance. The first part concerns the simplest case of geometry transfer, i.e., using point sources for 3 source-to-detector distances : 2, 5 and 20 cm; the second part deals with transfer from point source geometry to cylindrical geometry with three different matrixes. The general results show that the deviations between the computed results and the measured efficiencies are for the most part part within 10 %. The quality of the results is rather inhomogeneous and shows that these codes cannot be used directly for metrological purposes. However, most of them are operational for routine measurements when efficiency uncertainties of 5 - 10 % can be sufficient. |
Zitierung
Altzitzoglou, T., Arnold, D., Bronson, F., Capote Noy, R., Mainegra Hing, E., Décombaz, M., Laedermann, J.-P., De Corte, F., De Wispelaere, A., Edelmaier, R., Herrera Peraza, E., Lopez Pino, N., Abrahantes Quintana, A., Klemola, S., Korun, M., Vidmar, T., Kr.aacute.lik, M., Novotny, T., Neder, H., Pommé, S., Sima, O., Ugletveit, F., Velzen, L. P. M. V., & Lépy, M.-C. (2000). EUROMET Action 428: Transfer of Ge detectors efficiency calibration from point source geometry to other geometries (Report No. Rapport CEA-R-5894(E)).