Fig. 1

Dose calculation. a. Representative image of the local irradiation of mice using iodine 125 seeds encased in a 3D-printed plastic bracelet and placed directly above the tumor. b. Side view schematic of the setup geometry. Seed 1 is taken as an example to visualize the geometric variables \(\:\theta\:\)_i and \(\:\beta\:i\). c. Top view schematic of the setup geometry. Seed 1 is taken as an example to visualize the geometric variable r_i. d. TG-43-based estimation of the intratumoral dose distribution across the central axis of the tumor using the 2D-line source approximation. A median value of 10.07 Gy is indicated by a dotted red line