Measurements have been made of the propagation of neutrons from a 14- MeV source into a free-field air over ground geometry. Neutron, gamma ray, and total kerma have been measured at distances ranging from 100 to 800 meters from the source. Agreement with calculations is satisfactory.
The primary objective of this study was to attempt to verify by experimental data whether state-of-the-art radiation transport codes and models, such as DOT III used by Oak Ridge National Laboratory (ORNL) and the Defence Research Establishment Ottawa (DREO) are suitable for predicting radioactive dose and spectra versus distance for fission nuclear weapons. To accomplish this, neutron and gamma spectra, tissue kerma, and dose were measured and calculated at ranges ...
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