ESTRO PT 2018

Batterman et al. Eur. J. Cancer 17: 539-548; 1981

Equal growth delay

D(neutron) D(photon)

RBE =

Photon RT

Variety of tumors

Variety of RBE-values

Tumor RBE-values generally higher than the 3.0-3.5 value, measured for normal tissues

Neutron RT

ACC RBE-values ≈ 8