Dose Course Book

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IAEA/AAPM formalism for relative dosimetry
Small field detector correction factors
[ ] [ ] [ ] clin
msr
clin
msr
clin
msr
msr clin
msr clin
,
,
Q
Q spectrum
Q
Q fluence
Q
Q vol
f f
QQ p p p k ≈
Account for three main detector perturbation effects:
Ratio of
volume
averaging
correction
factors
Ratio of charged
particle fluence
perturbation
correction factors
Ratio of correction
factors to account
for the spectral
dependence of
photon energy
absorption in the
detector medium