Scope for identifying materials in multilayer structures by gamma-ray backscattering methods
1986
Experiments have been performed on probing compositions in multilayer structures from the relative contributions from the albedo components to the scattered radiation energy distribution. The authors consider cases of models in the form of three-layer discs of diameter 600 mm made of glass-fiber materials, aluminum, steel, and lead having monotone or discrete changes in the z of the layers. It is possible to perform monitoring on multilayer structures using continuous spectra and to improve the data provided by backscattering to give adequate analysis of the composition at depth in layered objects, particularly by using calibration scatterers with known physical characteristics and computing methods of evaluating the spectral components.
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