Conditions for Criticality in Certain Types of Nuclear Reactors,

Abstract

Integro-differential equation describing the diffusion of neutrons in a multiplying medium is studied under the assumption of plane geometry and linearly anisotropic scattering, but without the usual limitation to continuous slowing down and weak absorption. Under the condition that the integrated flux vanish at the boundary it is shown that a separable solution exists. The relation between core size and the number of neutrons required per fission for a steady state is determined. The results are specialized to the case of isotropic scattering in the laboratory system, and to the case of a medium containing hydrogen and an element which scatters without energy loss.

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Document Details

Document Type
Technical Report
Publication Date
Sep 28, 1950
Accession Number
ADA311813

Entities

People

  • D. S. Selengut

Organizations

  • Oak Ridge National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Air Force
  • Boltzmann Equation
  • Boundaries
  • Chemical Reactions
  • Collisions
  • Differential Equations
  • Diffusion Theory
  • Equations
  • Fission
  • Fission Neutrons
  • Inelastic Scattering
  • Integral Equations
  • Nuclear Energy
  • Nuclear Reactors
  • Scattering
  • Steady State

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Nuclear and Radiation Engineering.
  • Plasma Physics / Magnetohydrodynamics