Accession Number : AD0874661

Title :   An Approximation to Time-Dependent Neutral Particle Transport in a Slab.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Kaul, Dean Catlin

Report Date : JUN 1970

Pagination or Media Count : 134

Abstract : An approximation to neutral particle transport in energy, space, and time through a thick slab shield is developed. A space independent multigroup rate equation, modified to allow particle leakage from a system of finite size, is solved to provide an expression for the total particle population as a function of time. Spacial dependence is determined exactly for unscattered particles and assumed for scattered particles. This provides a time, space, and energy dependent source of secondary radiation which is transported to a detector by point kernel integration. This approximation is demonstrated by comparison to experimental data. (Author)

Descriptors :   (*NEUTRON TRANSPORT THEORY, SHIELDING), (*NEUTRON BEAMS, DOSE RATE), (*GAMMA RAYS, DOSE RATE), CONCRETE, RADIATION HAZARDS, ELASTIC SCATTERING, INELASTIC SCATTERING, DISTRIBUTION FUNCTIONS, INTEGRALS, NUMERICAL INTEGRATION, EXPONENTIAL FUNCTIONS, COMPUTER PROGRAMS, TABLES(DATA), THESES.

Subject Categories : Radiobiology
      Nuclear Radiation Shield, Protection & Safety
      Fission Reactor Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE