Fission Product Distribution in Nuclear Test Cavities/Chimneysby J. L. Thompson, Los Alamos Natl Lab, Los Alamos, United States,
Abstract: When a nuclear device is exploded, residual radioactive material is distributed throughout the resulting underground cavity and rubble chimney. Refractory materials are more concentrated at the bottom of the cavity and volatile materials are more concentrated in the chimney. The radionuclides deposited in the chimney region are more readily leached by groundwater than those incorporated in the melt glass in the cavity. Studies of expended nuclear test sites may help us anticipate the behavior of radionuclides in a nuclear repository.
Subject Headings: Radioactive materials | Cavitation | Chimneys | Hazardous materials | Glass | Riprap | Groundwater
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