The covariance between sensitive cross-sections is adjusted in the cross-section adjustment method even if these cross-sections are originally independent of each other. On the other hand, the experimental error and calculation error are also sensitive to the results, thus the covariance among not only cross-sections but also errors of experiment and calculation can be adjusted. However, the derivation and the impact of the covariance are not well discussed. Therefore, in the present study, the adjustment method is derived for the whole of the cross-section and errors of experiment and calculation. The result of analysis using light-water moderated uranium benchmark shows the covariance between cross-section and errors of experiment and calculation reduces the uncertainty. There might be correlations between the cross-section and the errors of experiment and calculation, however, the adjustment of correlation between them had better be carefully discussed since the correlation is thought to be very weak in practical.

即使这些横截面原本彼此独立，在横截面调整方法中也会调整敏感横截面之间的协方差。另一方面，实验误差和计算误差对结果也很敏感，因此不仅可以调整横截面之间的协方差，还可以调整实验和计算误差之间的协方差。然而，协方差的推导和影响没有得到很好的讨论。因此，在本研究中，调整方法是针对整个截面和实验计算的误差推导出来的。使用轻水慢化铀基准分析的结果表明，横截面与实验和计算误差之间的协方差降低了不确定性。