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Phantoms for beam characterization: liquid water
Advantages
•
Widely used and available
•
Known composition
•
Detectors can be placed at any point
inside the phantom
•
Large enough to characterize the beam
under full scatter conditions
Disadvantages
•
Not all detectors are waterproof
•
Not quick and easy to set up
•
Too large to simulate the dimensions of
a real patient and be used for the
dosimetric verification of a treatment
plan