1090 / 1228
Difference on uncertainty per fraction to uncertainty
f t t l d or o a ose
For normal distributions the number of subsequent
f i
( b i
)
l i
i
f
ract ons o servat ons resu ts n compensat on o
variations
1 / √N
including constant EBRT results in
1 / 2
So 13% per fraction can be 3.5% for total dose