Radiobiology 2016

@ 2 x 10 -3 RBE 2.9 @ 2 x 10 -1 RBE 4.2

LET = Energy lost (keV)/distance traveled (µm) RBE (Relative Biological Effectiveness) = dose of reference radiation (250 kVp X rays) dose of high-LET radiation High-LET survival curves have higher α/β values

1.0

3.8

4.2

11.2