Table 2 Minimum (minRBE), maximum (maxRBE) and mean (meanRBE) RBE values in the PTV for the two patient cases for (α/β) _x  = 2 Gy and 10 Gy

1

LEM

D _t  = 10 Gy

1.10

1.70

1.19

1.05

1.34

1.09

2

1.17

1.41

1.22

1.05

1.19

1.10

1

LEM

D _t  = 40 Gy

1.15

1.90

1.27

1.05

1.45

1.12

2

1.22

1.57

1.30

1.09

1.26

1.13

1

WED

1.20

1.64

1.24

1.10

1.26

1.11

2

1.22

1.42

1.27

1.10

1.19

1.12

1

CAR

1.20

1.60

1.27

2

1.23

1.43

1.28