A Comparison between In-situ and Sampling Methods for the Determination of Radionuclides in Soil

概要

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The in-situ method is now increasingly applied to the determination of concentrations of radionuclides in the environs of nuclear facilities. This method is very convenient because it saves time and labor, as compared to the conventional sampling method in which soil specimens are collected and activity measurements are made in the laboratory. A comparison between the in-situ and sampling methods was made at a site considered to be quite suited to the in-situ method and at 28 sites considered to be not so suited. Activity values determined by the in-situ method were apparently lower than those determined by the sampling method. However, the activity values determined by both methods were roughly proportional to each other. It appears that the activity values determined by the in-situ method can be converted to those which would be obtained by the sampling method rather simply by multiplying by an appropriate factor.
日本放射線影響学会の論文