1670-1671 / 2239
5
How to express deviations?
Calculated and measured dose distributions can be compared
according to
1)
to the
local dose
value
2) to the dose at a
specific point inside the beam
under consideration
) ,(
/) ,(
) ,(
Bi
DBi D Bid
meas
calc
=
(
)
) ,(
/) ,(
) ,(
100 ) ,%(
Bi
DBi
DBi D
Bi d
meas
meas
calc
−
⋅
=
B – present beam, R – Ref beam
this is proposed in the IAEA TRS-1583
3) to the
dose in a reference field
) ,
(
/) ,(
) ,(
B ref
DBi D Bid
meas
calc
=
) ,
(
/) ,(
) ,(
R ref
DBi
D Bid
meas
calc
=
(
)
) ,
(
/) ,
(
) ,(
100 ) ,%(
B ref
DB ref
DBi D
Bi d
meas
meas
calc
−
⋅
=
(
)
) ,
(
/) ,
(
) ,(
100 ) ,%(
R ref
DR ref
D Bi
D
Bi d
meas
meas
calc
−
⋅
=
Utrecht 2016