Figure 2. Mean dose per primary ion ⟨ ⟩ ( )D z r,0 , dose-averaged LET ⟨ ⟩ ( )z rLET ,D and radiobiological ( )α z r, parameter distributions for a quasi-infinitesimal beamlet of 270 MeV u−1 carbon ions impinging on a water phantom. For the evaluation of the α distribution, the MKM parameters reported in Kase et al (2008) for human salivary gland (HSG) cells were used.
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