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Relative biological effectiveness of α particles emitted by radionuclides incorporated in mouse testis as a function of particle energy (●) and initial linear energy transfer (○). The data are for the 5.3, 6.0 and 8.8 MeV α particles from incorporated 210Po (19), 212Bi and 212Po, respectively. The least-squares fits to the data indicated by the solid lines cover most of the energies encountered for α-particle emitters.
