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Dose range / linearity / saturation:
) (
)) ( (
) ( det
DM DMlk D D
where: k
l
is the
intrinsic
linearity
(normalized to 1 @
some D
0
) and α relates D
0
to
M(D
0
)
•
Detector response is linear if k
l
is 1 for any D M(D)
,
•
!!!This is not always the case!!!
Figure from:
Rogers & Cygler (Eds), Clinical dosimetry measurements in radiotherapy (2009 AAPM Summer
School), Monograph No. 34, Medical Physics Publishing 2011