Author: R. L. G. KeithPublisher:
ISBN:
Category : Cross sections
Languages : en
Pages : 21
Book Description
A Measurement of the Fission Cross Sections of 239Pu and 233U Relative to 235U
Author: E. PfletschingerPublisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 8
Book Description
The Fission Cross Sections of 23°Th, 232Th, 233U, 234U, 236U, 238U, 237Np, 239Pu and 242Pu Relative 235U at 14. 74 MeV Neutron Energy
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.
A Measurement of the Fission Cross Sections of 233U, 235U and 239Pu
Author: R. L. G. KeithPublisher:
ISBN:
Category : Cross sections
Languages : en
Pages : 21
Book Description
A Measurement of the Fission-cross-section of 239 Pu and 233 U Relative to 235 U
Author: Elmar PfletschingerFission Cross Section of 239Pu Relative to 235U from 0. 1 to 10 MeV.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The fission cross ratios of 239Pu to 235U were measured over the neutron energy range of 0.1 to 10 MeV. The atom ratios of the samples were based on their relative thermal fission rates and on their alpha activity.
Evaluation of Fission Cross Sections and Covariances 233U, 235U, 238U, 239Pu, 240Pu, and 241Pu
Author: Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 88
Book Description
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
Author: P. H. WhitePublisher:
ISBN:
Category : Cross sections
Languages : en
Pages : 23
Book Description
High-energy Measurements of Neutron-induced Fission Cross-section Ratios Involving 233U, 235U, 238U, and 239Pu Using the Method of Threshold Cross Sections
Author: A Measurement of the Fission Cross Section Ratios 235Pu:235U, 233U:235U
Author: E. PfletschingerPublisher:
ISBN:
Category : Cross sections
Languages : en
Pages : 26
Book Description
The Fission Cross Section Ratios and Error Analysis for Ten Thorium, Uranium, Neptunium and Plutonium Isotopes at 14. 74 MeV Neutron Energy
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.