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Optical Model Interpretation Of Neutron Strength Functions
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Book Synopsis Optical Model Interpretation of Neutron Strength Functions by :
Download or read book Optical Model Interpretation of Neutron Strength Functions written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The qualitative dependence of the neutron strength function upon optical model parameters is discussed with emphasis on the effects of variations in the magnitude and spatial dependence of the absorptive potential. A model is presented that gives a good account of strength functions and potential scattering radii, as well as neutron scattering cross sections below 1 Mev for spherical nuclei. (auth).
Download or read book Neutron Strength Functions written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron strength functions and scattering radii are useful as energy and channel radius independent parameters that characterize neutron scattering resonances and provide a connection between R-matrix resonance analysis and the optical model. The choice of R-matrix channel radii is discussed, as are limitations on the accuracies of strength functions. New definitions of the p-wave strength function and scattering radius are proposed. For light nuclei, where strength functions display optical model energy variations over the resolved resonances, a doubly reduced partial neutron width is introduced for more meaningful statistical analyses of widths. The systematic behavior of strength functions and scattering radii is discussed.
Book Synopsis Optical model analysis of neutron cross sections and strength functions by : Charles M. Newstead
Download or read book Optical model analysis of neutron cross sections and strength functions written by Charles M. Newstead and published by . This book was released on 1974 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atlas of Neutron Resonances by : Said F. Mughabghab
Download or read book Atlas of Neutron Resonances written by Said F. Mughabghab and published by Elsevier. This book was released on 2018-02-09 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Optical-Model Analysis of Neutron Scattering from Nuclei Near a by :
Download or read book Optical-Model Analysis of Neutron Scattering from Nuclei Near a written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The polarization and differential cross sections for neutrons scattered from Zr, Nb, Mo, and Cd were measured at five angles for neutron energies between 0.275 and 0.85 Mev. The results were analyzed in terms of a local optical model equivalent to the noniocal model of Perey. The analysis leads to the following major conclusions; the calculations, corrected for the effects of compound elastic scattering, are consistent with most of the observed scattering data, particularly when a spin-orbit potential that includes both a real and imaginary term of the Thomas type is employed; and calculations (based on this model) of the magnitude and shape of the P-wave neutron strength function in the region near A = 100 are not very sensitive to the parameters of the spin-orbit potential -- at least when the real term is between 7 and 2 Mev and the imaginary term is between 0 and 7 Mev. (auth).
Book Synopsis The Nucleon Optical Model by : Peter Edward Hodgson
Download or read book The Nucleon Optical Model written by Peter Edward Hodgson and published by World Scientific. This book was released on 1994 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nucleon optical model is widely used to calculate the elastic scattering cross-sections and polarisations for the interaction of neutrons and protons with atomic nuclei. The optical model potentials not only describe the scattering but also provide the wave functions needed to analyse a wide range of nuclear reactions. They also unify many aspects of nuclear reactions and nuclear structure. This book consists of a comprehensive introduction to the subject and a selection of papers by the author describing the optical model in detail. It contains full references to the original literature with many examples of the application of the model to the analysis of experimental data.
Book Synopsis Atlas of Neutron Resonances by : Said F. Mughabghab
Download or read book Atlas of Neutron Resonances written by Said F. Mughabghab and published by Elsevier. This book was released on 2018-02-09 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Book Synopsis Neutron Strength Functions by : Peter Arnold Moldauer
Download or read book Neutron Strength Functions written by Peter Arnold Moldauer and published by . This book was released on 1961 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of computations are presented for the neutron strength functions (Sn) which refer to the orbital angular momentum (l), the laboratory energy of the neutrons (En) and the total angular momentum (J).
Book Synopsis Neutron Strength Function Calculations Using an Angular Momentum Dependent Optical Model by : Jose Maria Sierra Alverez
Download or read book Neutron Strength Function Calculations Using an Angular Momentum Dependent Optical Model written by Jose Maria Sierra Alverez and published by . This book was released on 1974 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Strength Functions. Based on an Optical Model of the Nucleus Consisting of a Spherical Complex Potential Well with Diffuse Surface and Spin-Orbit Force by :
Download or read book Neutron Strength Functions. Based on an Optical Model of the Nucleus Consisting of a Spherical Complex Potential Well with Diffuse Surface and Spin-Orbit Force written by and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of computations are presented for the neutron strength functions (Sn) which refer to the orbital angular momentum (l). the laboratory energy of the neutrons (En) and the total angular momentum (J). (J.R.D.).
Book Synopsis Atlas of Neutron Resonances by : Said F. Mughabghab
Download or read book Atlas of Neutron Resonances written by Said F. Mughabghab and published by Elsevier. This book was released on 2006-04-04 with total page 1373 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlas of Neutron Resonances provides detailed information on neutron resonances, thermal neutron cross sections, and average resonance properties which are important to neutron physicist, astrophysicists, solid state physicists, reactor engineers, scientists involved in activation analysis, and evaluators of neutron cross sections. · Compilation and evaluation of the world's thermal neutron cross-sections and resonance parameters for neutron physicists, reactor engineers, and neutron evaluators.· Compilation and evaluation of coherent scattering lengths for solid state physicists and evaluators· Compilation and evaluation of average 30-keV capture cross sections for astrophysicists.· Nuclear level density parameters derived from average spacings of neutron resonances following a new approach (new feature for this edition).· Brief review of sub-threshold fission.· Comparisons of optical model predictions with neutron strength function data and scattering lengths.· Estimation of average E1 radiative widths on the basis of the generalized Landau-Fermi liquid model (a new feature for this edition).
Book Synopsis Atlas of Neutron Resonances by : Said F. Mughabghab
Download or read book Atlas of Neutron Resonances written by Said F. Mughabghab and published by Elsevier Science. This book was released on 2018-03-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NBS Special Publication written by and published by . This book was released on 1968 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of the Optical-model Parameters on Channel Analysis of the Neutron-induced Nuclear Fission by : S. B. Ermagambetov
Download or read book The Effect of the Optical-model Parameters on Channel Analysis of the Neutron-induced Nuclear Fission written by S. B. Ermagambetov and published by . This book was released on 1968 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Optical Model in Nuclear and Particle Physics by : P. B. Jones
Download or read book The Optical Model in Nuclear and Particle Physics written by P. B. Jones and published by . This book was released on 1963 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nuclear Cross Sections and Technology by : Roald A. Schrack
Download or read book Nuclear Cross Sections and Technology written by Roald A. Schrack and published by . This book was released on 1975 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
