TCP
=
exp
−
N
0
exp
−
α
D
−
β
dD
(
)
$
%
&
'
But
λ
is a function of:
dose per fraction,
d
, and number of fractions,
n
.
Remember that:
S
=
λ
N
0
=
e
−
n
α
d
+
β
d
2
(
)
=
exp
−
α
D
−
β
dD
(
)
Therefore: