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HollandPTC
Intensity modulation
Yes
3D/4D on-line alignment
No
In-vivo dosimetry
No
Dose distribution sensitivity
High
Integral dose
Very low
Price per patient
€25,000
Yes
Integrated
Yes
New modality
Non-existent
Somewhat higher
€75.000
PHOTONS
PROTONS
Cheaper: 2x to 3x
Thought experiment