作者: Frank H. Ruddy , John G. Seidel , Joseph L. Gonzalez , Thomas V. Congedo
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摘要: A method for determining the depth of a gamma emitting elements beneath surface volume soil is disclosed. The disclosed includes steps detecting rays at first height h₁ above surface; second h₂ ratio R representative number detected to h₁, or vice versa; and inferring, on basis R, an estimate element surface.