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. 2017 Sep 25;12:159. doi: 10.1186/s13014-017-0895-8

Table 2.

Values of the α-component of LQ model for SF and DSBs for different radiation qualities

α values
of SF		 α values
of foci 24 h		 RBE(SF 0.1) RBE(foci 24 h)
220 kV X-rays LDR, reference 0.12 0.84 1.00 1.00
220 kV X-rays HDR 0.24 1.87 0.58 2.22
<E n > = 5.8 MeV neutrons LDR 0.43 4.43 2.06 5.25
<E n > = 5.8 MeV neutrons HDR 0.65 3.86 1.99 4.57
1.2 MeV monoenergetic neutrons 1.91 3.36 3.75 3.98
0.56 MeV monoenergetic neutrons 2.55 6.71 4.97 7.95
mixed gamma – secondary neutron (<E n > = 70.5 MeV) field 1.03 3.77 2.09 4.47

RBE(SF 0.1) are calculated for a survival fraction of 10%, RBE(foci 24 h) are α-based calculated according to F(D) = αD + βD2, with β equal to zero [31, 32]