1350-1351 / 2239
(
)
(
)
zyxAD zyxAD
o
, , ;
, , ;
Ψ
⋅
=
Dose per MU formalisms:
model-based dose calculations
M
M
o
Ψ
relates the MU to the incident direct
energy fluence under
reference
calibration conditions
Energy fluence of
direct photons
at isocentre in air
Calibration factor
(
)
[
]
(
)
[
]
calc
ref
ref
ref
ref
meas
ref
ref
ref
ref
o
,
,
;
,
,
;
o
z y x AD
M z y x AD
M
Ψ
=
Ψ
M
D
meas
ref,
o
calc ref,
Ψ
D