Application of radioactive tracers in the study of sediment movement
Radioactive tracer techniques were employed in order to investigate the dispersion and transport of bed material in a test reach of the North Loup River near Purdum, Nebraska. Sand particles, labelled with Iridium-192, were used as tracers to enable observation of the natural dispersion and transport processes. The amount of radioactivity and the number of tracer particles required for the experiment was determined by considering the sensitivity of the radiation-detection system, the characteristics of the test reach, and radiological safety considerations. In the experiment, the tracer particles ...
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