Journals Information
Advances in Energy and Power(CEASE PUBLICATION) Vol. 1(1), pp. 30 - 43
DOI: 10.13189/aep.2013.010103
Reprint (PDF) (390Kb)
Sensitivity and Uncertainty Analysis of the Keff Due to ENDF/B-VII.0 Cross Sections Uncertainties of the Major Isotopes in Nuclear Reactors
M. Kaddour1,*, T. El Bardouni1, Y. Boulaich2, O. Allaoui1, B. El Bakkari2, C. El Younoussi2, M. Azahra1, H. Boukhal1, S. EL Ouahdani1, E. Chakir3
1 Radiations and Nuclear Systems Laboratory, University Abdelmalek Essaadi, Faculty of Sciences of Tetuan, Morocco
2 CEN-Maamora, CNESTEN, Rabat, Morocco
3 Nuclear Physic Laboratory, Faculty of Sciences of Kenitra, Morocco
ABSTRACT
The main objective of this study is to estimate nuclear data uncertainties on the effective multiplication factor (Keff) related to elastic, inelastic, capture and fission cross sections and the correlations between them. Different rapid and thermal cases of the different IHECSBE benchmarks have been studied by using nuclear data evaluation ENDF/B-VII.0 to calculate the sensitivity vectors for 1H, 16O, 235U and 238U isotopes and four cases used to validate our sensitivity vectors. These sensitivity vectors are calculated by using the adjoint-weighted perturbation method based on the Kpert card of the Monte Carlo code MCNP6. Thus, the uncertainties induced by nuclear data have been calculated by combining the sensitivity vectors with the covariance matrices that are generated by the ERRORJ module of the recently updated of the nuclear data processing system NJOY99. In this study, we found several cross sections and covariance matrices lack the adjustment: the four cross sections (elastic, inelastic, capture and fission) of the 235U and their covariance matrices Lack the adjustement especially in the rapid energies; the elastic cross section of the 16O, the elastic and capture cross sections of the 1H and their covariance matrices lack the adjustement especially in the thermal energies.
KEYWORDS
Cross Section, Sensitivity, Covariance Matrix, Nuclear Uncertainty, MCNP6
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M. Kaddour , T. El Bardouni , Y. Boulaich , O. Allaoui , B. El Bakkari , C. El Younoussi , M. Azahra , H. Boukhal , S. EL Ouahdani , E. Chakir , "Sensitivity and Uncertainty Analysis of the Keff Due to ENDF/B-VII.0 Cross Sections Uncertainties of the Major Isotopes in Nuclear Reactors," Advances in Energy and Power(CEASE PUBLICATION), Vol. 1, No. 1, pp. 30 - 43, 2013. DOI: 10.13189/aep.2013.010103.
(b). APA Format:
M. Kaddour , T. El Bardouni , Y. Boulaich , O. Allaoui , B. El Bakkari , C. El Younoussi , M. Azahra , H. Boukhal , S. EL Ouahdani , E. Chakir (2013). Sensitivity and Uncertainty Analysis of the Keff Due to ENDF/B-VII.0 Cross Sections Uncertainties of the Major Isotopes in Nuclear Reactors. Advances in Energy and Power(CEASE PUBLICATION), 1(1), 30 - 43. DOI: 10.13189/aep.2013.010103.