Neutron Inelastic-scattering Cross Sections of 232Th, 233U, 235U, 238U, 239Pu and 24°Pu. [LMFBR]. PDF Download
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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Differential-neutron-emission cross sections of 232Th, 233U, 235U, 238U, 239Pu and 24°Pu are measured between approx. = 1.0 and 3.5 MeV with the angle and magnitude detail needed to provide angle-integrated emission cross sections to approx.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Differential-neutron-emission cross sections of 232Th, 233U, 235U, 238U, 239Pu and 24°Pu are measured between approx. = 1.0 and 3.5 MeV with the angle and magnitude detail needed to provide angle-integrated emission cross sections to approx.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
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.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
Differential cross sections for the (p, n) reactions to the isobaric analog states (IAS) of 232Th and 238U targets were measured at 26 and 27 MeV. The analysis of the data was done in conjunction with the proton elastic and inelastic (2, 4, 6+) differential cross sections measured at 26 MeV. Because collective effects are important in this mass region, deformed coupled-channels calculations were carried out for the simultaneous analysis of the proton and neutron outgoing channels. The sensitivity of the calculations was studied with respect to the optical model parameters used in the calculations, the shape of the nuclear charge distribution, the type of coupling scheme assumed among the levels, the magnitude of the deformation parameters, and the magnitude of the isovector potentials, V1 and W1. A Lane model-consistent analysis of the data was used to infer optical potential parameters for 6- to 7-MeV neutrons. The neutron elastic differential cross sections obtained from these calculations are compared with measurements available in the literature, and with results obtained using neutron parameters from global sets reported at these energies. 7 figures, 3 tables.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
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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Author: 
Author: Alan B. Smith
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Author: Lawrence Cranberg
Author: Roald Amundsen Schrack![Neutron Scattering Cross Sections for 232Th and 238U Inferred from Proton Scattering and Charge Exchange Measurements. [7 MeV, 26 and 27 MeV]. PDF](https://books.google.com/books/content/images/frontcover/Y5V8AQAACAAJ?fife=w80-h100)
Author: 
Author: Ganesh Chandra Goswami
Author: Gang Yue
Author: Devereux L. Kavanagh
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