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Table 1 Photon parameters applied during the in silico investigations. The Dt parameter is required for LEM calculations only

From: Biophysical modeling and experimental validation of relative biological effectiveness (RBE) for 4He ion beam therapy

αx [Gy−1]

βx [Gy− 2]

(α/β)x [Gy]

Dt [Gy]

calculation type

References

0.2

0.1

2

6.2

water

 

0.2

0.02

10

15

water

 

0.036

0.024

1.5

5.65

prostate

Brenner and Hall (1999) [39]

0.089

0.0287

3.1

7.41

prostate

Terry and Denekamp (1984) [41]

0.077

0.009

8.6

13.41

head

Jones and Sanghera (2007) [42]

0.0499

0.0238

2.1

6.31

head

Meeks et al. (2000) [43]