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➢
PDR brachytherapy :
➢
repair between successive pulses (hours) and during
the whole fraction (hours - days) is significant
tn
sy ny
t
PDR g
2
1
2
t
e
y
1
x
e k
2
1
2
1
t
nt
n
t
ke
e k enk k nk
s
21
T
2ln
… repair rate
T
1/2
…
half time for repair
t …
irradiation time
for each pulse
x …
time between pulses
without irradiation
n …
number of equal pulses
2
T
1/2
4 6 8 Time [h]
. . .
Intro
Mission
Concept
Solution
Mathematical Description / Repair Function