γ線の透過・散乱を利用した密度・水分測定法

Abstract

In conventional nucleonic gauges, density and moisture are measured by gamma rays and neutrons, respectively. The authors have carried out experimental studies, aiming to develop a new technique to measure both density and moisture by using a single gamma ray source. The result shows that there is a possibility of density and moisture measuring by gamma ray transmission and scattering. In the case of the transmission method, a spatial resolution in vertical direction as good as 40mm is attainable. This performance will be effective for the study of soil nature under heavy rain fall.