Space Dependent Model for the Slowing Down of Fast Neutrons.

Abstract

The slowing down of fast neutrons was analyzed by a multi-group method of discrete time and energy states coupled with a spatial harmonic expansion method to determine the neutron density in a homogeneous, isotropically scattering slab. Five neutron source geometries were studied for both a fissioning and a non-fissioning system. Numerical results were obtained for the neutron flux, mean neutron energy and the neutron spectra for the one dimensional system using a harmonic mode expansion of up to six terms to determine the time-energy-space dependence. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1971
Accession Number
AD0728695

Entities

People

  • Thomas Martin Mills

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Diffraction
  • Fast Neutrons
  • Geometry
  • Neutron Flux
  • Neutron Spectrum
  • Neutrons
  • Particle Spectra
  • Scattering
  • Spectra
  • Wave Phenomena

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Solar Physics

Technology Areas

  • Space