Neutron Total Cross Sections Of 235u From Transmission Measurements In The Energy Range 2 Kev To 300 Kev And Statistical Model Analysis Of The Data PDF Download
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Total Pages | : |
Release | : 2003 |
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Download NEUTRON TOTAL CROSS SECTIONS OF 235U FROM TRANSMISSION MEASUREMENTS IN THE ENERGY RANGE 2 KeV to 300 KeV AND STATISTICAL MODEL ANALYSIS OF THE DATA. Book in PDF, ePub and Kindle
The average[sup 235]U neutron total cross sections were obtained in the energy range 2 keV to 330 keV from high-resolution transmission measurements of a 0.033 atom/b sample. The experimental data were corrected for the contribution of isotope impurities and for resonance self-shielding effects in the sample. The results are in very good agreement with the experimental data of Poenitz et al. in the energy range 40 keV to 330 keV and are the only available accurate experimental data in the energy range 2 keV to 40 keV. ENDF/B-VI evaluated data are 1.7% larger. The SAMMY/FITACS code was used for a statistical model analysis of the total cross section, selected fission cross sections and[alpha] data in the energy range 2 keV to 200 keV. SAMMY/FITACS is an extended version of SAMMY which allows consistent analysis of the experimental data in the resolved and unresolved resonance region. The Reich-Moore resonance parameters were obtained from a SAMMY Bayesian fits of high resolution experimental neutron transmission and partial cross section data below 2.25 keV, and the corresponding average parameters and covariance data were used in the present work as input for the statistical model analysis of the high energy range of the experimental data. The result of the analysis shows that the average resonance parameters obtained from the analysis of the unresolved resonance region are consistent with those obtained in the resolved energy region. Another important result is that ENDF/B-VI capture cross section could be too small by more than 10% in the energy range 10 keV to 200 keV.
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Total Pages | : 5 |
Release | : 2000 |
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Download Neutron Total Cross Sections of 235U From Transmission Measurements in the Energy Range 2 KeV to 300 KeV and Statistical Model Analysis of the Data Book in PDF, ePub and Kindle
The average 235U neutron total cross sections were obtained in the energy range 2 keV to 330 keV from high-resolution transmission measurements of a 0.033 atom/b sample. 1 The experimental data were corrected for the contribution of isotope impurities and for resonance self-shielding effects in the sample. The results are in very good agreement with the experimental data of Poenitz et al. 4 in the energy range 40 keV to 330 keV and are the only available accurate experimental data in the energy range 2 keV to 40 keV. ENDF/B-VI evaluated data are 1.7% larger. The SAMMY/FITACS code 2 was used for a statistical model analysis of the total cross section, selected fission cross sections and data in the energy range 2 keV to 200 keV. SAMMY/FITACS is an extended version of SAMMY which allows consistent analysis of the experimental data in the resolved and unresolved resonance region. The Reich-Moore resonance parameters were obtained 3 from a SAMMY Bayesian fits of high resolution experimental neutron transmission and partial cross section data below 2.25 keV, and the corresponding average parameters and covariance data were used in the present work as input for the statistical model analysis of the high energy range of the experimental data. The result of the analysis shows that the average resonance parameters obtained from the analysis of the unresolved resonance region are consistent with those obtained in the resolved energy region. Another important result is that ENDF/B-VI capture cross section could be too small by more than 10% in the energy range 10 keV to 200 keV.
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Total Pages | : 5 |
Release | : 2001 |
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Download Average Total Neutron Cross Section OF 233U, 235U AND 239Pu from ORELA Transmission Measurements and Statistical Analysis of the Data Book in PDF, ePub and Kindle
The average total neutron cross sections of 233U, 235U, and 239Pu were obtained from transmission measurements in the unresolved resonance region up to several hundred keV neutron energy. The method used for the calculation of the self-shielding effect is described. A statistical model analysis of the results was performed and the s-, p- and d-wave neutron strength functions were obtained.
Author | : Joseph L. Fowler |
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Total Pages | : 1062 |
Release | : 1980 |
Genre | : Cross sections (Nuclear physics) |
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Download Nuclear Cross Sections for Technology Book in PDF, ePub and Kindle
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Total Pages | : 41 |
Release | : 1966 |
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Download Neutron Cross Sections in the Energy Range 100 Ev It E/sub N /It 100 Kev Book in PDF, ePub and Kindle
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Total Pages | : 34 |
Release | : 1965 |
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Download The Measurement of Neutron Total Cross Sections in the Resonance Energy Region and Book in PDF, ePub and Kindle
Author | : David T. Goldman |
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Total Pages | : 730 |
Release | : 1968 |
Genre | : Neutron cross sections |
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Download Neutron Cross Sections and Technology Book in PDF, ePub and Kindle
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Total Pages | : 1058 |
Release | : 1980 |
Genre | : Weights and measures |
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Download NBS Special Publication Book in PDF, ePub and Kindle
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Total Pages | : 1292 |
Release | : 1976 |
Genre | : Nuclear energy |
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Download Nuclear Science Abstracts Book in PDF, ePub and Kindle
Author | : P. B. Hemmig |
Publisher | : |
Total Pages | : 572 |
Release | : 1966 |
Genre | : Neutron cross sections |
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Download Conference on Neutron Cross Section Technology Book in PDF, ePub and Kindle