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A Numerical Solution Of Low-Energy Neutron Boltzmann Equation, Martha Sue Clowdsley
A Numerical Solution Of Low-Energy Neutron Boltzmann Equation, Martha Sue Clowdsley
Mathematics & Statistics Theses & Dissertations
A multigroup method using a straight ahead approximation is created to calculate low energy neutron fluence due to the elastic scattering of evaporation neutrons produced in interactions of high energy particles with target nuclei. This multigroup method is added to NASA Langley Research Center's HZETRN particle transport code. This new code is used to calculate the energy spectra of the neutron fluence in several different materials. The multigroup method is found to be an efficient way of calculating low energy neutron fluence in multiple atom materials as well as single atom materials. Comparisons to results produced by Monte Carlo methods …