Physics Bucharest 2017

Basic Dose Calculation Principles What is a monitor unit (MU)?

linac

linac

“ 1 MU = signal of the monitor when delivering 1 cGy to a certain reference point in a water tank“ “ 1 MU will not correspond to 1 cGy in the same point when a different geometry is considered”

monitor

monitor

SSD

depth

water tank

patient