Observations of Backscattered Gamma-Rays in a Surface Density Gauge

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概要

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• Energy spectra of Cs^<137> gamma-rays, backscattered from materials of various densities into a surface gauge of the soil density meter, were measured by means of NaI scintillation counter. Changes in the spectra of scattered gamma-rays caused by varying the density were inferred from calculations for Compton single scattering. The density-intensity relationships were obtained by calculations and experiments for several energy regions with several different source-to-detector separations. The plots of measured gamma-ray intensities from water and paraffine deviate from the density-intensity curve. The deviations depend on the source-detector separation and also on the response of the detector to gamma-rays. The gamma-ray intensities, observed for densities from 0.44 to 2.47 g/cm^3, fit well into a simple experimental equation.

• 社団法人応用物理学会の論文
• 1965-09-15

著者

• Uemura Teiji

  Industrial Research Institute Osaka Prefecture

• Uemura Teiji

  Industrial Research Institute

関連論文

• Influence of the Air-Gap on Surface Density Gauge
• On Calculations for Gamma-Ray Scattering in Density Gauge
• The Response of the Gamma-Ray Density Gauge to the Boundary between Two Materials
• Observations of Backscattered Gamma-Rays in a Surface Density Gauge

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