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0
0
;
, ,
; , ,
D A x y z
D A x y z
M
M
ref
ref
ref
ref
0
meas
ref
ref
ref
ref
0 calc
;
,
,
;
,
,
D A
x y z M
M D A x y z
D
(
A,x,y,z
)
integrated fluence and
dose engine
0
energy fluence of
direct
photons
at isocentre in air
ref,meas
D
M
ref,calc
0
D
Dose per MU formalisms:
model-based dose calculations
Calculation engine calibration
factor relates MU to the direct
energy fluence.
Commonly determined under
ref
erence
cal
ibration conditions