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Report No.

Importance of reactor physics experiment using MA-bearing fuel

Sugawara, Takanori ; Sasa, Toshinobu; Oigawa, Hiroyuki

Improvement on the neutronics design accuracy of the MA-loaded core is one of the most important issues in the MA transmutation technologies. Uncertainties of the current MA nuclear data are supposed to be larger than those of other major nuclides. Therefore, analyzed neutronics properties of MA-loaded FR and ADS have much larger design margins in comparison with those of conventional FR. To improve the reliability, safety and economical efficiency of these systems, it is required to increase the accuracy of the nuclear data of MA by the experimental data taken under adequate experimental conditions. In this study, error analyses were conducted to estimate the benefit of the MA-loaded experiments at TEF-P (Transmutation Physics Experimental Facility) on the error reduction in neutronics design of transmutation systems. Through this estimation, the effect of the MA-loaded experiments at TEF-P was verified quantitatively.



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