EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book New Parameterization of Neutron Absorption Cross Sections

Download or read book New Parameterization of Neutron Absorption Cross Sections written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-29 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent parameterization of absorption cross sections for any system of charged ion collisions, including proton-nucleus collisions, is extended for neutron-nucleus collisions valid from approx. 1 MeV to a few GeV, thus providing a comprehensive picture of absorption cross sections for any system of collision pairs (charged or uncharged). The parameters are associated with the physics of the problem. At lower energies, optical potential at the surface is important, and the Pauli operator plays an increasingly important role at intermediate energies. The agreement between the calculated and experimental data is better than earlier published results. Tripathi, Ram K. and Wilson, John W. and Cucinotta, Francis A. Langley Research Center NASA-TP-3656, NAS 1.60:3656, L-17598 RTOP 199-45-16-11...

Book New Parameterization Of Neutron Absorption Cross Sections    NASA TP 3656    Sep  18  1997

Download or read book New Parameterization Of Neutron Absorption Cross Sections NASA TP 3656 Sep 18 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Atlas of Neutron Resonances

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 Neutron Cross Sections

    Book Details:
  • Author : S Mughabghab
  • Publisher : Elsevier
  • Release : 2012-12-02
  • ISBN : 0323142354
  • Pages : 847 pages

Download or read book Neutron Cross Sections written by S Mughabghab and published by Elsevier. This book was released on 2012-12-02 with total page 847 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron Cross Sections, Volume 1: Neutron Resonance Parameters and Thermal Cross Sections, Part A represents the fourth edition of what was previously known as BNL-325, Neutron Cross Sections, Volume 1. This three-chapter book provides the extensive list of detailed individual resonance parameters for each isotope. The first chapter deals with the thermal cross sections and average resonance parameters, as well as the physics of thermal and resonance neutrons, with particular emphasis on evaluation methods. This chapter also includes tables of standards of capture cross sections and scattering lengths, and commonly used nuclear physics formulas. The second chapter covers the direct or valence capture and the Brink-Axel treatment of electric dipole radiation. These topics are followed by a discussion on spin-dependent scattering lengths that are of interest to solid state. The third chapter describes the Maxwellian 30-keV capture cross sections that are of importance to studies of nucleosynthesis and age of the universe. This chapter also examines the s- and p-wave average radiative widths and gamma-ray strength functions that are required in capture cross section measurements. This book will appeal to nuclear and astrophysicists.

Book Neutron Cross Sections and Technology

Download or read book Neutron Cross Sections and Technology written by David T. Goldman and published by . This book was released on 1968 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Neutron Cross Sections

    Book Details:
  • Author : Said F. Mughabghab
  • Publisher : Academic Press
  • Release : 2012-12-02
  • ISBN : 0323140289
  • Pages : 666 pages

Download or read book Neutron Cross Sections written by Said F. Mughabghab and published by Academic Press. This book was released on 2012-12-02 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to the extensive list of detailed individual resonance parameters for each isotope, this book contains thermal cross sections and average resonance parameters, as well as a short survey of the physics of thermal and resonance neutrons with emphasis on evaluation methods.

Book Conference on Neutron Cross Section Technology

Download or read book Conference on Neutron Cross Section Technology written by P. B. Hemmig and published by . This book was released on 1966 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Reports to the AEC Nuclear Cross Sections Advisory Group

Download or read book Reports to the AEC Nuclear Cross Sections Advisory Group written by and published by . This book was released on 1956-09 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Universal Parameterization of Absorption Cross Sections

Download or read book Universal Parameterization of Absorption Cross Sections written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-15 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our prior nuclear absorption cross sections model is extended for light systems (A less than or equal to 4) where either both projectile and target are light particles or one is a light particle and the other is a medium or heavy nucleus. The agreement with experiment is excellent for these cases as well. Present work in combination with our original model provides a comprehensive picture of absorption cross sections for light, medium, and heavy systems, a very valuable input for radiation protection studies. Tripathi, R. K. and Cucinotta, Francis A. and Wilson, John W. Johnson Space Center; Langley Research Center NASA/TP-1999-209726, NAS 1.60:209726, L-17832

Book Neutron Cross Sections

    Book Details:
  • Author : Donald J. Hughes
  • Publisher : Elsevier
  • Release : 2016-01-22
  • ISBN : 1483282759
  • Pages : 193 pages

Download or read book Neutron Cross Sections written by Donald J. Hughes and published by Elsevier. This book was released on 2016-01-22 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron Cross Sections presents the principles of cross-section measurement and use, as well as sufficient theory so that the general behavior of cross sections is made understandable. This compilation is a direct result of experiences connected with the collection and evaluation of cross-section data during the past eight years at ""Sigma Centre"", Brookhaven National Laboratory. Here, experimental results received from laboratories throughout the world are carefully evaluated and compiled in the curves and tables of the large volume Neutron Cross Sections, The most recent version of the compilation, known as BNL 325, appeared 1 July 1955, and Supplement 1 to BNL 325 was published on 1 January 1957. The compilation itself consists almost completely of cross sections at specific energies, shown in the form of curves or tables, with only brief explanatory texts. The text opens with discussions of the general properties of cross sections and principles of nuclear structure that are important to the understanding of cross-section behavior. Separate chapters follow that describe specific techniques for measuring cross sections along with experimental results involving fast neutrons, resonance neutrons, resonances in fissionable materials, and thermal neutrons.

Book Neutron Cross Sections

Download or read book Neutron Cross Sections written by and published by . This book was released on 1973 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Neutron Resonance Parameters and Thermal Cross Sections

Download or read book Neutron Resonance Parameters and Thermal Cross Sections written by S. F. Mughabghab and published by . This book was released on 1981 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Atlas of Neutron Resonances

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