Inhomogeneity of Dose Distribution in Animals Subjected to Whole-Body Irradiation with 250-Kvp X-Rays

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Abstract
"Total-body" exposure of large animals or man, may not result in even approximately the same dose to different tissues. Because of body contour, depth-dose patterns determined in a rice-and-wax phantom contoured to the shape of a dog were appreciably different from values calculated from published standard depth-dose tables (400-cm2 portal, other factors being approximately equal). In addition to differences due to contour, the tissue traversed by the beam makes considerable difference. Depth-dose patterns in a cadaver dog, compared with those in a contoured rice phantom, differed by as much as [plus or minus]30%.

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