Radioactivity: Detection of Gamma-Ray Emission in Sediments in situ

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Science  14 May 1965:
Vol. 148, Issue 3672, pp. 948-950
DOI: 10.1126/science.148.3672.948


A probe for measuring emission of γ-rays in sediments in situ in water depths to about 35 meters was used to measure radioactivity in the Columbia River estuary and Oregon coastal areas. This technique offers some advantage over methods in which sediment samples are collected at sea and returned to the laboratory for radioanalysis.