BCRB 2018
1 /n
d 16.5 10.95
0
1.0 .5
0.2
0.4
αβ = 3 Gy
.25 .125 .0625 .03125 .015625
7.35 4.88 3.14 1.90 1.08
1 /n
0.6
α/β
0.8
Proportion of full effect
1.0
0
5
10
15
20
d
Dose per fraction (Gy)
Damage from a single fraction = αd + βd 2 Total damage from n fractions, E = n ( αd + βd 2 ) E/n = αd + βd 2 1 /n = ( α/E)d + ( β/E)d 2
Michael Joiner
Basic Clinical Radiobiology 2018
Page 10 of 27
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