Neutron and Photon Transport: Plane, Cylinder, Sphere (Digital Computer Programs)

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Digital comnputer Program S constructs neutron and proton transport theory solutions having plane, cylindrical, or spherical symmetry. Lattice detail in geometry, energy, and momentum-angles is flexibleAnisotropic scattering- transfer is neglected. For aircraft nuclear propulsion applications, the initial version of the program developed as the Los Alamos SNG Neutron Code has been generalized to include the effects of time-delayed neutron or photon production and to provide the flux adjoint. The input consists of geometry, material concentrations, collision cross sections, scattering-transfer cross sections, fission multiplication cross sections, inverse period Laplace-timetransform of fission production spectra, and Laplacetime-transform of fixed source distribution. The output … continued below

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Pages: 133

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Duane, B. H. July 31, 1957.

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Digital comnputer Program S constructs neutron and proton transport theory solutions having plane, cylindrical, or spherical symmetry. Lattice detail in geometry, energy, and momentum-angles is flexibleAnisotropic scattering- transfer is neglected. For aircraft nuclear propulsion applications, the initial version of the program developed as the Los Alamos SNG Neutron Code has been generalized to include the effects of time-delayed neutron or photon production and to provide the flux adjoint. The input consists of geometry, material concentrations, collision cross sections, scattering-transfer cross sections, fission multiplication cross sections, inverse period Laplace-timetransform of fission production spectra, and Laplacetime-transform of fixed source distribution. The output includes resctivity, critical size, flux distribution, adjoint distribution, and power distribution. (auth)

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Pages: 133

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Other Information: Orig. Receipt Date: 31-DEC-58

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  • July 31, 1957

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  • Oct. 15, 2017, 10:09 p.m.

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  • Nov. 26, 2024, 12:53 a.m.

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Duane, B. H. Neutron and Photon Transport: Plane, Cylinder, Sphere (Digital Computer Programs), report, July 31, 1957; Cincinnati, Ohio. (https://digital.library.unt.edu/ark:/67531/metadc1017200/: accessed May 19, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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