Evaluation Of Neutron Cross Sections To 40 Mev For 54 56fe
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Release | : 1980 |
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Download Evaluation of Neutron Cross Sections to 40 MeV for 54 56Fe Book in PDF, Epub and Kindle
Cross sections for neutron-induced reactions on 54 56Fe were calculated by employing several nuclear models: optical, Hauser-Feshbach, preequilibrium and DWBA - in the energy range between 3 and 40 MeV. As a prelude to the calculations, the necessary input parameters were determined or verified through analysis of a large body of experimental data for both neutron- and proton-induced reactions in this mass and energy region. This technique also led to cross sections in which the simultaneous influence of available data types added to their consistency and reliability. Calculated cross sections as well as neutron and gamma-ray emission spectra were incorporated into an ENDF evaluation suitable for use to 40 MeV. 12 figures, 1 table.
Author | : E. D. Arthur |
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Total Pages | : 102 |
Release | : 1980 |
Genre | : Angular distribution |
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Download Evaluated Neutron-induced Cross Sections for 54,56Fe to 40 MeV Book in PDF, Epub and Kindle
Author | : M. R. Bhat |
Publisher | : |
Total Pages | : 470 |
Release | : 1980 |
Genre | : Fast neutrons |
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Download Symposium on Neutron Cross-sections from 10 to 50 MeV Book in PDF, Epub and Kindle
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Release | : 1980 |
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Download Calculation of Neutron Cross Sections on Iron Up to 40 MeV. Book in PDF, Epub and Kindle
The development of high energy d + Li neutron sources for fusion materials radiation damage studies will require neutron cross sections up to 40 MeV. Experimental data above 15 MeV are generally sparse or nonexistent, and reliance must be placed upon nuclear-model calculations to produce the needed cross sections. To satisfy such requirements for the Fusion Materials Irradiation Test Facility (FMIT), neutron cross sections have been calculated for 54 56Fe between 3 and 40 MeV. These results were joined to the existing ENDF/B-V evaluation below 3 MeV. In this energy range, most neutron reactions can be described using the Hauser-Feshbach statistical model with corrections for preequilibrium and direct-reaction effects. To properly use these models to obtain realistic cross sections, emphasis must be placed upon the determination of suitable input parameters (optical model sets, gamma-ray strength functions, level densities) valid over the energy range of the calculation. To do this, several types of independent data were used to arrive at consistent parameter sets as described.
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Release | : 1979 |
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Download Calculation of Neutron Cross Sections on Iron Between 3 and 40 MeV. [Hauser-Feshbach Model]. Book in PDF, Epub and Kindle
The use of high energy d+Li sources to produce neutrons for radiation damage studies will require evaluated neutron cross sections up to energies of 40 MeV. Experimental data in this energy region are scarce, and reliance must be placed upon nuclear model calculations to provide the necessary cross sections. We have thus calculated neutron-induced cross sections on 54Fe and 56Fe between 3 and 40 MeV using the multistep preequilibrium Hauser-Feshbach model code GNASH. Special care was taken in the determination of optical model parameters applicable over this wide energy range through use of, and comparison to, neutron total cross section and elastic angular distribution data, (p, n), and (.cap alpha., n) data, as well as other high energy proton induced reaction cross sections and spectral results. The preequilibrium-statistical calculations using these parameters as well as gamma-ray strength functions, level densities, and discrete level information reproduce well most available experimental measurements above 3 MeV for varied reaction types including gamma-ray production data. 12 references.
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Total Pages | : 724 |
Release | : 1993 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, Epub and Kindle
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author | : V. Pronyaev |
Publisher | : |
Total Pages | : 112 |
Release | : 1995 |
Genre | : Neutron cross sections |
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Download Evaluations of the Fast Neutron Cross Sections of 52Cr and 56Fe Including Complete Covariance Information Book in PDF, Epub and Kindle
Author | : M. R. Bhat |
Publisher | : |
Total Pages | : 440 |
Release | : 1980 |
Genre | : Fast neutrons |
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Download Symposium on Neutron Cross-sections from 10 to 50 MeV Book in PDF, Epub and Kindle
Author | : David T. Goldman |
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Total Pages | : 680 |
Release | : 1968 |
Genre | : Neutron cross sections |
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Download Neutron Cross Sections and Technology Book in PDF, Epub and Kindle
Author | : Ronald Scott Pedroni |
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Total Pages | : 512 |
Release | : 1986 |
Genre | : Neutrons |
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Download Cross Sections and Analyzing Powers in the 8- to 17-MeV Range for Neutron Scattering from 54, 56Fe, 58, 60Ni, 93Nb, 120Sn Book in PDF, Epub and Kindle