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Basic Dose Calculation Principles
What is a monitor unit (MU)?
linac
monitor
SSD
depth
water tank
“
1 MU
=
signal of the
monitor
when
delivering
1 cGy
to a
certain
reference
point
in a water
tank“
linac
monitor
patient
“
1 MU will not
correspond to 1 cGy
in the same point when
a
different geometry
is considered”