Elementary approximations in the theory of neutron diffusion
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Elementary approximations in the theory of neutron diffusion by Philip R. Wallace

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Published in Chalk River, Ont .
Written in English


  • Neutrons.,
  • Radioactivity.

Book details:

Edition Notes

Statementby P.R. Wallace and J. Le Caine.
ContributionsAgnew, Jeanne, 1917- joint author.
LC ClassificationsQC721 .W217
The Physical Object
Pagination172 l.
Number of Pages172
ID Numbers
Open LibraryOL6037708M
LC Control Number48022452

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In this chapter, we shall extend the elementary diffusion theory that was developed in Secs. and and apply it to some important special problems. We shall mainly be interested in the diffusion of thermal neutrons in weakly absorbing “good” moderators, such as H 2 O, D 2 O, graphite, beryllium, beryllium oxide, and various Author: K. H. Beckurts, K. Wirtz. theory with small mean free paths and the diffustion approximation, J. Math. Phys. 16 () K.M. Case and P.F. Zweifel, Linear Transport Theory, Addison-Wesley, () • Neutron Motion - Boltzmann Transport Equation - Linear Integro-differential Equation • Diffusion Theory - Common Approximation - Neutron Flux = Fick’s law.   Alvin M. Weinberg, Eugene P. Wigner, The physical theory of neutron chain reactors, Chicago press, library of congress , This book is a monument in the history of reactor physics. It was published for the second conference of Atoms for peace in Geneva where the first data on the nuclear industry was declassified. Google ScholarAuthor: Serge Marguet. Neutron Diffusion Theory Prof. Weston M. Stacey Georgia Institute of Technology, Nuclear & Radiological Engineering, Atlantic Drive, NW, Atlanta, GA ‐, USA.

Elementary introduction to nuclear reactor physics. This book gives an elementary but coherent account of that branch of physics involved in the study and design of nuclear reactors at a standard presentation judged to be suitable for advanced undergraduate students. Author(s): Liverhant, S. E. The use of this law in reactor theory leads to the diffusion approximation. Let us make the following assumptions: 1. We consider an infinite medium. 2. The cross sections are constants, independent of position, implying a uniform medium. 3. Scattering is isotropic in the LAB system 4. The neutron flux is a slowly varying function of the. In this book, it is shown that the reduced order models of nuclear reactors based on the theory of neutron diffusion with a fractional constitutive law are obtained using all known theoretical arguments, that is, neutron transport theory. This book is intended for researchers and engineers interested in exploring new horizons in the modeling for nuclear reactors, focusing on nonclassical . You can write a book review and share your experiences. Other readers will always be interested in your opinion of the books you've read. Whether you've loved the book or not, if you give your honest and detailed thoughts then people will find new books that are right for them.

H1 Approximations of the Neutron Transport Equation and Associated Diffusion Equations Article in Transport Theory and Statistical Physics 35(3) August with 12 Reads. coupled to the diffusion equation, and must be solved simultaneously. • Interpretation: The diffusion equation simply states that the rate of change of the neutron scalar flux at position r r for neutrons of energy E is the result of differences between: The production of fission neutrons (prompt operator Fpφ and the delayed source.   1. See, for example, Wallace and Le Caine, “Elementary approximations in the theory of Neutron diffusion,” Natl. Research Council Can. Google Scholar 2. A. To a first approximation the overall effect of these interactions is that the neutrons undergo a kind of diffusion in the reactor core, much like the diffusion of one gas in another. This approximation is usually known as the diffusion approximation and it is based on the neutron diffusion theory.