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New Aspects In The Evaluation Of Thermal Neutron Cross Sections
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Book Synopsis New Aspects in the Evaluation of Thermal Neutron Cross Sections by :
Download or read book New Aspects in the Evaluation of Thermal Neutron Cross Sections written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Because of recent advances in experimental techniques, which improved the accuracies of thermal capture and scattering cross sections by an order of magnitude, a more stringent approach in the evaluation of the thermal constants is developed. In the present approach, the following aspects are introduced: (1) a consistency between thermal cross sections, coherent and incoherent scattering lengths, and neutron resonance parameters is achieved; (2) a consistency between the isotopic and element cross sections is sought; in addition, for each isotope, the requirement that the partial cross sections add up to the total is fulfilled; (3) where possible, charged particle data particularly derived from (d, p) reactions on light and medium weight isotopes are used in locating the positions and strengths of bound levels. Such a procedure is useful in the evaluation of the shape of the cross sections in the thermal region; and (4) the Lane-Lynn theory of direct capture is called upon to calculate thermal cross sections and check for consistencies for certain isotopes. Extensive examples to illustrate these procedures are presented.
Book Synopsis Evaluation of Thermal Neutron Scattering Cross Sections for Reactor Moderators by :
Download or read book Evaluation of Thermal Neutron Scattering Cross Sections for Reactor Moderators written by and published by . This book was released on 1969 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Cross Sections and Technology by : David T. Goldman
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 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atlas of Neutron Resonances by : S. F. Mughabghab
Download or read book Atlas of Neutron Resonances written by S. F. Mughabghab and published by Elsevier Science Limited. This book was released on 2006 with total page 1372 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. The long introduction can serve as a text book for students and researcher involved in neutron research. This book represents the fifth edition of what was previously well known as the Brookhaven National Laboratory BNL-325 reports, which are frequently referenced worldwide. · 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 Neutron Cross Sections by : S Mughabghab
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 Synopsis Evaluation of Thermal Neutron Cross-sections and Resonanceintegrals of Protactinium, Americium Curium, and Berkelium Isotopes by : T. S. Belanova
Download or read book Evaluation of Thermal Neutron Cross-sections and Resonanceintegrals of Protactinium, Americium Curium, and Berkelium Isotopes written by T. S. Belanova and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutron Cross Sections by : Said F. Mughabghab
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 Synopsis Evaluation of the Neutron Cross Sections of 235U in the Thermal Energy Region by : B. R. Leonard
Download or read book Evaluation of the Neutron Cross Sections of 235U in the Thermal Energy Region written by B. R. Leonard and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Neutron Activation Cross Sections by : L. Seren
Download or read book Thermal Neutron Activation Cross Sections written by L. Seren and published by . This book was released on 1944 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Neutron Cross Sections for Elements and Isotopes, H-Bi by : Katharine Way
Download or read book Thermal Neutron Cross Sections for Elements and Isotopes, H-Bi written by Katharine Way and published by . This book was released on 1948 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Brookhaven National Laboratory. Neutron Cross Section Evaluation Group. Sigma Center Publisher : ISBN 13 : Total Pages : pages Book Rating :4.:/5 (13 download)
Book Synopsis Newsletter by : Brookhaven National Laboratory. Neutron Cross Section Evaluation Group. Sigma Center
Download or read book Newsletter written by Brookhaven National Laboratory. Neutron Cross Section Evaluation Group. Sigma Center and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EVALUATION OF NEUTRON CROSS SECTIONS FOR A COMPLETE SET OF Nd ISOTOPES. by :
Download or read book EVALUATION OF NEUTRON CROSS SECTIONS FOR A COMPLETE SET OF Nd ISOTOPES. written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Neutron cross sections for a complete set of Nd isotopes, {sup 142,143,144,145,146,147,148,150}Nd, were evaluated in the incident energy range from 10−5 eV to 20 MeV. In the low energy region, including thermal and resolved resonances, our evaluations are based on the latest data published in the Atlas of Neutron Resonances. In the unresolved resonance region we performed additional evaluation by using the averages of the resolved resonances and adjusting them to the experimental data. In the fast neutron region, we used the nuclear reaction model code EMPIRE-2.19 validated against the experimental data. The results are compared to the existing nuclear data libraries, including ENDF/B-VI. 8, JENDL-3.3 and JEFF-3.1, and to the available experimental data. The new evaluations are suitable for neutron transport calculations and they were adopted by the new evaluated nuclear data file of the United States, ENDF/B-VII.0, released in December 2006.
Book Synopsis Neutron Cross Section Evaluation Group by : S. Pearlstein
Download or read book Neutron Cross Section Evaluation Group written by S. Pearlstein and published by . This book was released on 1964 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Compendium of Thermal Neutron Cross Sections Averaged Over the Spectra of Wigner and Wilkins by : Harvey J. Amster
Download or read book A Compendium of Thermal Neutron Cross Sections Averaged Over the Spectra of Wigner and Wilkins written by Harvey J. Amster and published by . This book was released on 1958 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Values of 21 energy-dependent microscopic cross sections were estimated on the basis of the latest experimental data and averaged up to 0.625 ev over Wigner-Wilkins neutron spectra for 700 mixtures of U-235, Pu-239, a 1/v absorber, and a hydrogen moderator.
Book Synopsis Thermal Neutron Cross Sections and Resonance Integrals for the 1994 Handbook of Chemistry and Physics by :
Download or read book Thermal Neutron Cross Sections and Resonance Integrals for the 1994 Handbook of Chemistry and Physics written by and published by . This book was released on 1994 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: A re-evaluation of all thermal neutron cross sections and neutron resonance integrals has been performed, utilizing the previous database of the ''Barn Book'' and all of the more recently published experiments. Only significant changes or previously undetermined values are recorded in this report. The source for each value is also recorded in the accompanying table.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
