Neutron Cross Sections
Published on 22. January 2016
192 pages
978-1-4832-8275-6 (ISBN)
Description
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.
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Content
Preface1. Types of Cross Sections and Principles of Measurement Simple Definition of Cross Section as Nuclear Area Cross-Section Nomenclature General Principles of Cross-Section Measurement Survey of Experimental Results Basic Applications of Cross Sections References for Additional Information2. Cross Sections and Nuclear Structure Radii and Masses of Nuclei The Compound Nucleus Nuclear Energy Levels Quantum-Mechanical Analysis of Cross Sections Nuclear Models The Black Nucleus The Cloudy Crystal Ball References for Additional Information3. Fast Neutrons Sources of Fast Neutrons Total Cross Sections-Experimental Total Cross Sections and the Cloudy Crystal Ball Nonelastic Cross Sections Inelastic Scattering Reaction Cross Sections Angular Distributions Cross Sections for Fission Neutrons References for Additional Information4. Neutron Resonances The Breit-Wigner Formula Resonance Neutron Sources Determination of Resonance Parameters Results of Resonance Analysis Level Spacings Radiation Widths Neutron Widths and r0n/D Ratio Nuclear Radii Applications of Resonance Parameter Data References for Additional Information5. Resonances in Fissionable Nuclides Techniques for Fission Measurements Parameters of Fissionable Nuclides U233 U235 Pu239 Theory of Fission Cross Sections Applications of Fission Parameters References for Additional Information6. Thermal Neutrons Optics of Slow Neutron Scattering Sources of Thermal Neutrons Measurements with Maxwell Distribution Thermal Cross Sections of Fissionable Nuclides Lattice Vibration Scattering References for Additional InformationAppendix 1. Constant and Conversion FactorsAppendix 2. Atomic Masses of Light NuclidesAppendix 3. References for Cross Section CurvesIndex
