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2. Establish (once) part of k
i
in treatment beam (k
rec
, k
pol
)
3. Perform measurement in beam Q in reference conditions
M
Q
4. Correct with k
p,T
5. D
w,Q
= M
Q
∙N
D,w,Co
∙k
Q,Co
∙
k
i
D
w,Q
= M
Q
∙N
D,w,Co
∙k
Q,Co
∙
k
i
1. Determine (once) k
Q,Co
, dependent on chamber
type
and Q
1. determine Q: TPR
20,10
(
effective attenuation coefficient)
2. determine k
Q,Co
: look-up table TRS 398 for NE2571 and TPR
20,10