Folie 1

Commissioning: Pre-Measurement Preparation



Sometimes it is the only time that physicists can

extensively

measure

radiation beams and beam modifiers



All in-house dosimetry equipment should be checked for calibration,

accuracy, and availability



Mechanical motion of water tank



Noise and leakage of ionization chambers and diodes



Phantom check



Errors in these phases may affect many patients!

Consider specific

requirements for SRS

and SBRT