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Category :
Languages : en
Pages :
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Evaluated Neutron-induced Cross Sections for 239Pu and 24°Pu
Author:
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Category :
Languages : en
Pages :
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Publisher:
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Category :
Languages : en
Pages :
Book Description
Alternate Approach to the 239Pu(n,2n) Cross Section
Author:
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Category :
Languages : en
Pages : 31
Book Description
Using existing experimental data for neutron-induced total, elastic, inelastic, reaction and fission cross sections, as well as results from nuclear model calculations and evaluations from nuclear reaction data libraries, we derived an estimate for the cross sections for the 235U(n,2n) and 239Pu(n,2n) reactions for the neutron energy range from threshold to approximately 12 MeV. In effect, our approach is based on subtracting the fission and inelastic cross sections from the total reaction cross section where the difference is expected to yield the (n,2n) cross section. In addition to this subtraction approach, a ratio method and a differential method have also been explored. For 235U(n,2n), as a test case, we arrive at a cross section consistent with previous measurements, and for 239Pu(n,2n) we obtain a peak value of 400 " 60 mb for the incident neutron energy range of 10 (less-than or equal to) E{sub n} (less-than or equal to) 12 MeV.
Publisher:
ISBN:
Category :
Languages : en
Pages : 31
Book Description
Using existing experimental data for neutron-induced total, elastic, inelastic, reaction and fission cross sections, as well as results from nuclear model calculations and evaluations from nuclear reaction data libraries, we derived an estimate for the cross sections for the 235U(n,2n) and 239Pu(n,2n) reactions for the neutron energy range from threshold to approximately 12 MeV. In effect, our approach is based on subtracting the fission and inelastic cross sections from the total reaction cross section where the difference is expected to yield the (n,2n) cross section. In addition to this subtraction approach, a ratio method and a differential method have also been explored. For 235U(n,2n), as a test case, we arrive at a cross section consistent with previous measurements, and for 239Pu(n,2n) we obtain a peak value of 400 " 60 mb for the incident neutron energy range of 10 (less-than or equal to) E{sub n} (less-than or equal to) 12 MeV.
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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Languages : en
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Languages : en
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Evaluated Neutron-induced Cross Sections for /sup 40/Ca from 20 to 40 MeV.
Author:
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Languages : en
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Book Description
Nuclear model codes were used to compute cross sections for neutron-induced reactions on /sup 40/Ca for incident energies from 20 to 40 MeV. The input parameters for the model codes were determined through analysis of experimental data in this energy region. Computed cross sections along with emission spectra for each product were combined into an Evaluated Nuclear Data File (ENDF) using the proposed format for charged-particle reactions. Discussion of the models used, the resulting calculations, and the final evaluated data file are presented.
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Languages : en
Pages :
Book Description
Nuclear model codes were used to compute cross sections for neutron-induced reactions on /sup 40/Ca for incident energies from 20 to 40 MeV. The input parameters for the model codes were determined through analysis of experimental data in this energy region. Computed cross sections along with emission spectra for each product were combined into an Evaluated Nuclear Data File (ENDF) using the proposed format for charged-particle reactions. Discussion of the models used, the resulting calculations, and the final evaluated data file are presented.
Experimental and Evaluated Nuclear Plus Interference Cross Sections for Light Charged Particles
Author: S. T. Perkins
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Category : Cross sections (Nuclear physics)
Languages : en
Pages : 48
Book Description
Publisher:
ISBN:
Category : Cross sections (Nuclear physics)
Languages : en
Pages : 48
Book Description
An Analysis of the 239Pu Neutron Cross Sections from 20 KeV to 20 MeV
Author: A. Prince
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ISBN:
Category : Neutron cross sections
Languages : en
Pages : 56
Book Description
Publisher:
ISBN:
Category : Neutron cross sections
Languages : en
Pages : 56
Book Description
Evaluation of Nuclear Reaction Cross-sections for 239Pu in the Resonance Energy Region with a View to Compiling a Complete File of Constants
Author: V.A. Kon'shin
Publisher:
ISBN:
Category : Capture
Languages : en
Pages : 9
Book Description
Publisher:
ISBN:
Category : Capture
Languages : en
Pages : 9
Book Description
EVALUATED NEUTRON-INDUCED GAMMA-RAY PRODUCTION CROSS SECTIONS FOR 235U AND 238U.
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Languages : en
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Languages : en
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Summary of Neutron-induced Fission Cross Sections
Author: R. L. Henkel
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Category : Neutron cross sections
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Neutron cross sections
Languages : en
Pages : 28
Book Description
Neutron Cross Sections and Technology
Author: David T. Goldman
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ISBN:
Category : Neutron cross sections
Languages : en
Pages : 732
Book Description
Publisher:
ISBN:
Category : Neutron cross sections
Languages : en
Pages : 732
Book Description