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Spatial isodose distribution of the total biologically weighted dose rate in an axial plane of the computational phantom produced in californium (Cf)-boron neutron capture therapy combined with a moderator balloon filled with heavy water with a balloon 4 cm in diameter. The scale represent the percentage of the maximum dose rate of 12.0 Gy h−1 at 432 μg 252Cf source. I1, infiltrations in the left temporal lobe; I2, infiltrations in the right temporal lobe.
