Tdimplant (Gy) α/β ratio for different values of RBE for Pd-103 implant 150.0 0.81 0.41 0.27 145.0 0.91 0.45 0.30 140.0 1.02 0.49 0.33 135.0 1.15 0.55 0.36 130.0 1.30 0.60 0.39 124.0 1.53 0.68 0.44 119.0 1.76 0.76 0.48 114.0 2.06 0.85 0.53 110.0 2.35 0.93 0.58 109.0 2.43 0.95 0.59 105.0 2.82 1.05 0.64 102.0 3.19 1.13 0.69 100.0 3.48 1.19 0.72 90.0 6.01 1.58 0.91

Table 2: Dependence of the α/β ratio on different values of RBE using 103Pd. TDext = 74 Gy given in 2 Gy daily dose fractions.