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Challenges: reference versus relative dosimetry
Reference conditions
Non reference conditions:
Relative dosimetry
-
Uniform electron fluence distribution
-
Non-Uniform electron fluence
over the detector.
-
Beam spectra at the reference point in
ref.
conditions known.
-
Detector of choice:
Ion Chambers
distribution over the detector.
VOLUME
AVERAGING
-
Beam spectra at the reference point
may differ
from beam spectra at the
measuring point.
ENERGY DEPENDENCE;
PERTURBATION FACTORS
-
Detector of choice:
???