Dose Course 2018_Flipping book

Challenges: reference versus relative dosimetry

Reference conditions

Non reference conditions: Relative dosimetry

- Uniform electron fluence distribution over the detector.

- Non-Uniform electron fluence distribution over the detector. VOLUME AVERAGING

- Beam spectra at the reference point in ref. conditions known.

- Beam spectra at the reference point may differ from beam spectra at the measuring point. ENERGY DEPENDENCE; PERTURBATION FACTORS

- Detector of choice: Ion Chambers

- Detector of choice: ???