Review of the Current Status of the U-238, NP-237 and Th-232 Fission Cross Sections

Review of the Current Status of the U-238, NP-237 and Th-232 Fission Cross Sections

1970년 말까지 보고된 U-238, Np-237 및 Th-232의 고속중성자에 대한 핵분열단 면적 및 그 실험오차를 조사 분석하여 최소자숭직교다항식적합법에 의하여 단면적의 최적치와 95%신뢰도에 대응하는 오차범위를 계산하고 이 결과를 사용하여 분열스펙트럼에 대한 평균단면적치를 추정하였다.

The experimental fission cross-section data of U-238, Np-237 and Th-232, published up to the end of 1970, are reviewed and analyzed between their respective thresholds and 20.0 MeV. The results of a statistical analysis of the available data, performed with a weighted Least-squares Orthogonal Polynomial Pitting computer programme are presented in the form of point-wise cross-section values together with their uncertainties, and in the form of graphs of the fitted curves with an indication of a region of 95% statistical confidence level. An estimate of the fission spectrum weighted average cross-sections and their respective uncertainties is also given.