The image reconstruction problem of linear attenuation coefficients is very difficult and central in transmission TGS.

在TGS透射 测量中,线性衰减系数值的图像重建问题是TGS的难点和核心问题.

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Tomographic gamma scanning ( TGS ) method is one of the most advanced non - destructive assay ( NDA ) methods.

层析γ扫描 ( TomographicGammaScanner -TGS ) 技术是无损分析 ( Non-DestructiveAssay-NDA ) 技术中最先进的分析技术之一.

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