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Mean absorbed dose calculation based on unit-density sphere model. (A) Power-law fit (dotted line) to OLINDA/EXM dose coefficients against 153Sm-filled homogeneous unit-density spheres of various masses (1–600 g) is demonstrated. 3D-RD–generated dose coefficients are shown as solid point for each sphere on curve fit for comparison. (B) Percentage difference between 3D-RD and OLINDA/EXM for each sphere is given.
