Integral measurements were conducted in seven FCA assemblies to test the fission and capture cross sections of higher actinides. The assemblies built for this purpose cover the systematic change of the neutron spectrum shape. The integral data measured are (1) the central fission rate ratio of Np-237, Pu-238, Pu-239, Pu-242, Am-241, Am-243 and Cm-244 relative to the fission in U-235, and (2) the central sample worths of Np-237, Pu-238, Pu-240, Am-241 and Am-243. The implications of the comparison between the measured data and the calculated values using the JENDL-2 and the ENDF/B data are discussed.
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Mukaiyama et al. (1986) studied this question.