The Fission Cross Sections Of 23th 232th 233u 234u 236u 238u 237np 239pu And 242pu Relative 235u At 14 74 Mev Neutron Energy PDF Download
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| Release | : 1986 |
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Download The Fission Cross Sections of 23°Th, 232Th, 233U, 234U, 236U, 238U, 237Np, 239Pu and 242Pu Relative 235U at 14. 74 MeV Neutron Energy Book in PDF, ePub and Kindle
The 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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| Release | : 1987 |
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Download The Fission Cross Section Ratios and Error Analysis for Ten Thorium, Uranium, Neptunium and Plutonium Isotopes at 14. 74 MeV Neutron Energy Book in PDF, ePub and Kindle
The 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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| Total Pages | : 56 |
| Release | : 1986 |
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Download The Fission Cross Sections of Sup 230Th, Sup 232Th, Sup 233U, Sup 234U, Sup 236U, Sup 238U, Sup 237Np, Sup239Pu, and Sup 242Pu Relative Sup 235U at 14.74 MEV Nuetron Energy Book in PDF, ePub and Kindle
| Author | : P. H. White |
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| Total Pages | : 23 |
| Release | : 1966 |
| Genre | : Cross sections |
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Download The Fission Cross Sections of 233U, 234U, 237Np, 239Pu, 240Pu and 241 Pu Relative to that of 235U for Neutrons in the Energy Range 1 MeV to 14 MeV Book in PDF, ePub and Kindle
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| Release | : 1983 |
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Download Fission Cross Sections of Some Thorium, Uranium, Neptunium and Plutonium Isotopes Relative to 235U. Book in PDF, ePub and Kindle
Earlier results from the measurements, at this Laboratory, of the fission cross sections of 23°Th, 232Th, 233U, 234U, 236U, 238U, 237Np, 239Pu, 24°Pu, and 242Pu relative to 235U are reviewed with revisions to include changes in data processing procedures, alpha half lives and thermal fission cross sections. Some new data have also been included. The current experimental methods and procedures and the sample assay methods are described in detail and the sources of error are presented in a systematic manner. 38 references.
| Author | : P. H. White |
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| Total Pages | : 0 |
| Release | : 1966 |
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Download The fission cross sections of u-233, u-234, u-236, np-237, pu-239, pu-240, and pu-241 relative to that of u-235 for neutrons in the energy range 1 mev to 14 mev Book in PDF, ePub and Kindle
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| Total Pages | : 88 |
| Release | : 2000 |
| Genre | : Cross sections (Nuclear physics) |
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Download Evaluation of Fission Cross Sections and Covariances 233U, 235U, 238U, 239Pu, 240Pu, and 241Pu Book in PDF, ePub and Kindle
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| Release | : 1979 |
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Download Fission Cross Section of 239Th and 232Th Relative to 235U. [Threshold to 10 MeV, Cross Sections]. Book in PDF, ePub and Kindle
The fission cross sections of 23°Th and 232Th were measured relative to 235U from near threshold to near 10 MeV. The weights of the thorium samples were determined by isotopic dilution. The weight of the uranium deposit was based on specific activity measurements of a 234U-235U mixture and low geometry alpha counting. Corrections were made for thermal background, loss of fragments in the deposits, neutron scattering in the detector assembly, sample geometry, sample composition and the spectrum of the neutron source. Generally the systematic errors were approx. 1%. The combined systematic and statistical errors were typically 1.5%. 17 references.
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| Release | : 1975 |
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Download Neutron-induced Fission Cross Sections of 233U, 234U, 236U, and 238U with Respect to 235U. Book in PDF, ePub and Kindle
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| Total Pages | : 1120 |
| Release | : 1984 |
| Genre | : Physics |
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