Radiobiology 2016

Dependence of X-ray cell killing on oxygen concentration

100

CHO Cells

10

A : 5% O 2 B : 2% O 2 C : 0.4% O 2 D : 0.1% O 2 E : 0.01% O 2

1

0.1

0.01

Surviving Fraction (%)

D E

A B C

0.001

40

60

0

20

Dose (Gy)