2360-2361 / 3107
The output is stipulated in Gy/MU under conditions of:
– Measured in a water phantom,
– Measured on the central axis of the radiation beam
– Stated for point
P
at a reference depth or maximum dose
– Measured with a field size of 10
×
10 cm
2
– Measured at the nominal
SSD
=
f
of the unit (most commonly 100 cm).
MU calculations
Calibration of the linac at REFERENCE CONDITIONS
1
MU
⇔
1
cGy