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Calibration:
!!!
Calibration uncertainty will be propagated as a
type B unc. component to experimental results
!!!
Absorbed dose sensitivity calibration
is usually performed using a Linac
where:
M(Q
0
) is the dosimeter reading
D
w
(Q
0
) is dose to water at the point of measurement
in the absence of the detector obtained using an
established reference dosimetry protocol (e.g.
TRS398) and an ion chamber with a dose to water
calibration traceable to international standards
Beam quality:Q
0
(Co-60 or MV linac photon beam)
dosimeter
)0
( ,
1
)0(
)
0(
)0
( ,
QwADN Q
w
D
QM
Q
S w
AD
=
=