Neutron and Gamma-Ray Environments for Point Neutron Sources in an Air-Over-Ground Geometry. Volume I

摘要

A complete graphical presentation is given of an Oak Ridge transport calculation of the nuclear environment at the air-earth interface generated by point sources of monoenergetic neutrons. Monte Carlo methods were employed in the calculations (computer codes 05R and OGRE). The graphs contain the time, energy, angular, and spatial distributions of the gamma rays and neutrons from each of 8 monenergetic sources ranging from 0.1 to 15 MeV. The calculations extend out to 1375 m from the source. The graphical form is suitable for synthesizing the environment from a source of nuclear weapon neutrons of any spectral distribution. Only neutrons with energies above 0.1 MeV are considered in this portion of the calculation. Thermal neutrons and the gamma rays transport calculation (computer code DOT) to appear in further volumes under this same title. A description of the calculations and the resultant neutron environments appear in the report. (Author)