High-energy Measurements of Neutron-induced Fission Cross-section Ratios Involving 233U, 235U, 238U, and 239Pu Using the Method of Threshold Cross Sections
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Published: 1974
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Published: 1974
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Published: 1975
Total Pages: 700
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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.
Author: United States. Energy Research and Development Administration. Technical Information Center
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Published: 1976
Total Pages: 588
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Published: 1976
Total Pages: 1314
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Published: 1976
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DOWNLOAD EBOOKA continuation is given of the fission-cross-section ratio measurements in progress at the Lawrence Livermore Laboratory. Preliminary results are provided for the 24°Pu/235U and 242Pu/235U ratios from 0.02 to 30 MeV and 0.1 to 30 MeV, respectively. Using the threshold-cross-section method, the ratios were normalized to the values 1.368 +- 0.030 and 1.116 +- 0.025, respectively, from 1.75 to 4.00 MeV.
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Published: 1978
Total Pages: 804
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Published: 1986
Total Pages: 876
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