دورية أكاديمية
Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes
| العنوان: | Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes |
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| المؤلفون: | Berglöf, Carl, Fernández Ordóñez, Manuel, Villamarín, David, Bécares, Vicente, González Romero, Enrique M., Bournos, Victor, Muñoz-Cobo González, José Luís |
| المساهمون: | Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear, European Commission |
| المصدر: | Repositorio Institucional de la Universitat Politècnica de València |
| بيانات النشر: | Elsevier Masson |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | info, socio |
| الوصف: | Berglöf, C.; Fernández Ordóñez, M.; Villamarín, D.; Bécares, V.; González Romero, EM.; Bournos, V.; Muñoz-Cobo González, JL. (2011). Auto-correlation and variance-to-mean measurements in a subcritical core obeying multiple alpha-modes. Annals of Nuclear Energy. 38(2-3):194-202. doi:10.1016/j.anucene.2010.11.009 ; Senia ; [EN] Neutron noise measurements based on the Rossi-α and Feynman-α methodologies have been performed in a heterogeneous subcritical system. It is shown that the traditional single alpha-mode formulations of the Rossi-α and Feynman-α methods are not applicable due to the presence of higher alpha-modes. Formalisms taking into account multiple alpha-modes are applied resulting in satisfactory results. Three alpha-modes could be identified using the Rossi-α method, whereas only two could be obtained using the Feynman-α method. In the Feynman-α case, the possibility to obtain the fastest decaying alpha-mode was diminished due to detector dead time effects. It was found that the slowest decaying alpha-mode does not exactly correspond to the prompt decay found in pulsed neutron source measurements, which confirms the results of previous studies. Strengths and weaknesses of the multiple alpha-mode Rossi-α and Feynman-α methods observed in this study are pointed out. This work was supported by IP-EUROTRANS contract no. FI6 W-CT2005-516520, the ENRESA-CIEMAT agreement for the Transmutacion Aplicada a los Residuos Radiactivos de Alta Actividad, Svensk Karnbranslehantering AB (SKB, the Swedish Nuclear Fuel and Waste Management Co) and the Swedish Institute through the Visby program. ; 194 202 38 2-3 |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0306-4549 1873-2100 |
| العلاقة: | http://hdl.handle.net/10251/51862Test; http://dx.doi.org/10.1016/j.anucene.2010.11.009Test |
| DOI: | 10.1016/j.anucene.2010.11.009 |
| الإتاحة: | https://doi.org/10.1016/j.anucene.2010.11.009Test http://hdl.handle.net/10251/51862Test |
| حقوق: | other |
| رقم الانضمام: | edsbas.DCC6CF4B |
| قاعدة البيانات: | BASE |
| تدمد: | 03064549 18732100 |
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| DOI: | 10.1016/j.anucene.2010.11.009 |