Evaluation of sensitivity coefficients of effective multiplication factor with respect to prompt fission neutron spectrum
Y Nagaya, I Kodeli, G Chiba, M Ishikawa - Nuclear Instruments and …, 2009 - Elsevier
Sensitivity coefficients with respect to the fission neutron spectrum can be formulated in two
ways: in terms of the unconstrained and constrained sensitivity coefficients. Differences in
results obtained using the two sensitivity methods were investigated for the case of the
perturbation of the fission spectrum, and for the uncertainty of the effective multiplication
factor (keff) with respect to the fission spectrum. It is shown analytically that both sensitivity
coefficient methods ideally result in the same uncertainty predictions. However, if the …
ways: in terms of the unconstrained and constrained sensitivity coefficients. Differences in
results obtained using the two sensitivity methods were investigated for the case of the
perturbation of the fission spectrum, and for the uncertainty of the effective multiplication
factor (keff) with respect to the fission spectrum. It is shown analytically that both sensitivity
coefficient methods ideally result in the same uncertainty predictions. However, if the …
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