Measurements of Neutron Radiative Capture Resonance Integrals PDF Download
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Author: Leo Gay LeSage
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 118
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Book Description
Author: Leo Gay LeSage
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 118
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Book Description
Author: Said F. Mughabghab
Publisher: Elsevier
ISBN: 044463780X
Category : Science
Languages : en
Pages : 698
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Book Description
Atlas of Neutron Resonances: Resonance Properties and Thermal Cross Sections Z=61-102, Sixth Edition, contains an extensive list of detailed individual neutron resonance parameters for Z=61-102, thermal cross sections, capture and fission resonance integrals, average resonance parameters, and a short survey of the physics of thermal and resonance neutrons. The long introduction contains: nuclear physics formulas aimed at neutron physicists; topics of special interest such as valence neutron capture, nuclear level density parameters, and s-, p-, and d-wave neutron strength functions; and various comparisons of measured quantities with the predictions of nuclear models, such as the optical model neutron-induced fission. As in the last edition, additional features have been added to appeal to a wider spectrum of users. These include: spin-dependent scattering lengths that are of interest to solid-state physicists, nuclear physicists and neutron evaluators; calculated and measured Maxwellian average 5-keV and 30-keV capture cross sections of importance to astrophysicists involved in nucleosynthesis modeling; s-, p-, and d- wave average radiative widths; nuclear level density parameters; and average fission widths derived from average fission cross sections. Provides a comparison of average resonance parameters with optical model calculations and with the generalized Landau-Fermi model Presents scattering radii for various partial waves from the analysis of total neutron cross sections in the keV to MeV energy region Includes a brief review of sub-threshold fission Features consistent treatment of average neutron parameters with values from the resolved resonance region
Author: Said F. Mughabghab
Publisher: Elsevier
ISBN: 0444637796
Category : Science
Languages : en
Pages : 840
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Book Description
Atlas of Neutron Resonances: Resonance Properties and Thermal Cross Sections Z= 1-60, Sixth Edition, contains an extensive list of detailed individual neutron resonance parameters for Z=1-60, as well as thermal cross sections, capture resonance integrals, average resonance parameters and a short survey of the physics of thermal and resonance neutrons. The long introduction contains: nuclear physics formulas aimed at neutron physicists; topics of special interest such as valence neutron capture, nuclear level density parameters, and s-, p-, and d-wave neutron strength functions; and various comparisons of measured quantities with the predictions of nuclear models, such as the optical model. As in the last edition, additional features have been added to appeal to a wider spectrum of users. These include: spin-dependent scattering lengths that are of interest to solid-state physicists, nuclear physicists and neutron evaluators; calculated and measured Maxwellian average 5-keV and 30-keV capture cross sections of importance to astrophysicists involved in nucleosynthesis modeling; s-, p-, and d-wave average radiative widths; and, nuclear level density parameters. Provides a comparison of average resonance parameters with optical model calculations and with the generalized Landau-Fermi model Presents scattering radii for various partial waves from the analysis of total neutron cross sections in the keV to MeV energy region Includes a brief review of sub-threshold fission Examines consistent treatment of average neutron parameters with values from the resolved resonance region
Author: M. Beer
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 38
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Book Description
Two-channel moments of amplitudes are calculated for a model in which the compound-nuclear wave function consists of the sum of two vectors each randomly oriented on the surface of its own hypersphere. The relative variances of partial radiation widths and of reduced neutron widths are calculated. Expressions are found for the correlation coefficient of reduced neutron widths and partial radiation widths, and for the correlation coefficient of partial radiation widths to pairs of bound states. It is found that the relative variance value 2 for reduced neutron widths, as well as recent experimental findings for the statistics of partial widths, can be incorporated in the present two-group model if one of the groups is composed of a vector space of a large number of dimensions.
Author: Bernard Taub Feld
Publisher:
ISBN:
Category : Neutron resonance
Languages : en
Pages : 36
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Book Description
Author: Said F. Mughabghab
Publisher: Elsevier Science
ISBN: 9780444637703
Category : Science
Languages : en
Pages : 0
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Book Description
Atlas of Neutron Resonances: Resonance Properties and Thermal Cross Sections Z=1-102, Sixth Edition, features an extensive list of detailed individual neutron resonance parameters, thermal cross sections, average resonance parameters and a short survey of the physics of thermal and resonance neutrons. The long introduction contains: nuclear physics formulas aimed at neutron physicists; topics of special interest such as valence neutron capture, nuclear level density parameters, sub-threshold fission and electric dipole radiation treated; and various comparisons of measured quantities with the predictions of nuclear models, such as the optical model and the generalized Landau-Fermi liquid mode. As in the last edition, additional features have been added to appeal to a wider spectrum of users. These include: spin-dependent scattering lengths that are of interest to solid-state physicists, nuclear physicists, and neutron evaluators; calculated and measured Maxwellian average 5-kev and 30-keV capture cross sections of importance to astrophysicists involved in nucleosynthesis modeling; s-, p-, and d- wave average radiative widths; and nuclear level density parameters. The various evaluated neutron strength functions, as well as the scattering radii, are compared with optical model predictions. Extensive applications of the Porter-Thomas distribution, coupled with Bayesian analysis, was made to determine the parity and spacings of neutron resonances.
Author: Clarence R. Pierce
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 26
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Book Description
Author: Lawrence Dresner
Publisher:
ISBN:
Category : Neutrons
Languages : en
Pages : 272
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Book Description
Author: David T. Goldman
Publisher:
ISBN:
Category : Neutron cross sections
Languages : en
Pages : 680
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Book Description
Author: J Harvey
Publisher: Elsevier
ISBN: 0323146376
Category : Science
Languages : en
Pages : 549
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Book Description
Experimental Neutron Resonance Spectroscopy deals with the experimental technique of neutron resonance spectroscopy. Pulsed accelerator time-of-flight spectrometers and gamma rays from neutron capture in resonances are discussed. Total neutron cross section measurements are presented, along with neutron scattering and capture cross-section measurements and measurements on fissile nuclides. This book is comprised of five chapters and begins with an introduction to pulsed accelerator time-of-flight spectrometers with moderated continued neutron spectra, together with the pulsed Van De Graaff. Experimental techniques used for neutron cross section measurements, including detectors and data acquisition equipment, are then outlined. Scattering measurements and capture measurements as well as gamma-ray spectra from the capture of neutrons in resonances are considered. The final chapter focuses on the detailed and varied experiments that have been performed on the complicated fission process, together with the parameters of the resonances of the fissile nuclides. This monograph will be a useful resource for spectroscopists and physicists.
