Radiobiology 2016

DNA is the principal target

Subcellular dose (Gy)

Radiation Source

Nucleus

Membrane

Cytoplasm

3.3

3.3

3.3

X-ray

3.8

0.27

0.01

3 H-Tdr

4.1

24.7

516.7

125 I-concanavalin

Warters et al. Curr Top Radiat Res Q 1977;12:389