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Estimated total attenuation and total attenuation derived from independent laboratory measurements versus depth for (a) constant-BSC three-layer phantom, (c) constant attenuation three-layer phantom, and (e) rodent phantom, and percentage error of total attenuation versus depth for (b) constant-BSC three-layer phantom, (d) constant attenuation three-layer phantom, and (f) rodent phantom.
BSC = backscatter coefficient.
