Measurement and Analysis of Fission and Capture Fission Cross Section Ratios of ²³⁷Np/²³⁵U

It is very difficult to measure the fission and capture fission cross sections of ²³⁷Np directly in China Experimental Fast Reactor (CEFR) and there are always obvious deviations in the measurement result. Because CEFR uses UO₂ as the fuel loading, the related cross section data of ²³⁷Np can be obtained through measuring the fission and capture fission cross section ratios of ²³⁷Np/²³⁵U. By analyzing the result of the cross section ratios, the related cross section data of ²³⁷Np were obtained in this paper. It will provide great support for ²³⁷Np transmutation and isotope production in CEFR through these data.