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Accession Number:
AD0265596
Title:
MONTE CARLO STUDIES OF GAMMA-RAY AND NEUTRON TRANSPORT IN INFINITE HOMOGENEOUS MEDIA
Descriptive Note:
Corporate Author:
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C
Report Date:
1961-11-01
Pagination or Media Count:
1.0
Abstract:
Two point-source, infinite-medium Monte Carlo codes were written for the IBM 704 computer. The codes simulate respectively gamma-ray and neutron transport from a monoenergetic source. A detailed description, including importance sampling methods, is given. Results showed good agreement with moments-method calculations for the same geometry. Calculations for 6-Mev gamma rays in tin provide data on the contribution of annihilation radiation to both the buildup factors and energy spectra. Calculations for 1-Mev gamma rays in water are also presented. The results of calculations for 6-Mev source neutrons in water show a peak in the energy spectrum which is found to be due to single scattering of source particles from oxygen. Author
Distribution Statement:
APPROVED FOR PUBLIC RELEASE