Fission Cross Sections of Thorium 232, Uranium 233, 235 and 236, Plutonium 239 Relative to Uranum 238 for 14 MeV Neutrons
Author: Warren Nyer
Publisher:
Published: 1950
Total Pages: 18
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Author: Warren Nyer
Publisher:
Published: 1950
Total Pages: 18
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Published: 1986
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DOWNLOAD EBOOKThe measurement of the fission cross section ratios of nine isotopes relative to 235U at an average neutron energy of 14.74 MeV is described with particular attention to the determination of corrections and to sources of error. The results are compared to ENDF/B-V and to other measurements of the past decade. The ratio of the neutron induced fission cross section for these isotopes to the fission cross section for 235U are: 23°Th - 0.290 +- 1.9%; 232Th - 0.191 +- 1.9%; 233U - 1.132 +- 0.7%; 234U - 0.998 +- 1.0%; 236U - 0.791 +- 1.1%; 238U - 0.587 +- 1.1%; 237Np - 1.060 +- 1.4%; 239Pu - 1.152 +- 1.1%; 242Pu - 0.967 +- 1.0%. 40 refs., 11 tabs., 9 figs.
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Published: 1976
Total Pages: 1118
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DOWNLOAD EBOOKAuthor: P. B. Hemmig
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Published: 1966
Total Pages: 564
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Published: 1987
Total Pages:
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DOWNLOAD EBOOKThe error information from the recent measurements of the fission cross section ratios of nine isotopes, 23°Th, 232Th, 233U, 234U, 236U, 238U, 237Np, 239Pu, and 242Pu, relative to 235U at 14.74 MeV neutron energy was used to calculate their correlations. The remaining 36 non-trivial and non-reciprocal cross section ratios and their errors were determined and compared to evaluated (ENDF/B-V) values. There are serious differences but it was concluded that the reduction of three of the evaluated cross sections would remove most of them. The cross sections to be reduced are 23°Th - 13%, 237Np - 9.6% and 239Pu - 7.6%. 5 refs., 6 tabs.
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Publisher:
Published: 1972
Total Pages: 628
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DOWNLOAD EBOOKAuthor: P. H. White
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Published: 1966
Total Pages: 0
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Published: 1991
Total Pages: 592
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DOWNLOAD EBOOKAuthor: United States. Energy Research and Development Administration
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Published:
Total Pages: 600
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Publisher:
Published: 1973
Total Pages: 626
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