13
Open field depth doses 6 MV
Dublin 2018
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
Depth (cm)
Dose (%)
5x5/Meas
10x10/Meas
15x15/Meas
20x20/Meas
5x5/Calc
10x10/Calc
15x15/Calc
20x20/Calc
0.900
0.925
0.950
0.975
1.000
1.025
1.050
1.075
1.100
0
2.5
5
7.5
10
12.5
15
17.5
20
22.5
25
Depth (cm)
d(i)
5x5
10x10
15x15
20x20
m
m
m
m
c
c
c
c
M ref
D
MiD
M ref
D
MiD
i
d
/) (
/)(
/) (
/)(
)(
=
Ratio, d(i), between calculated and
measured dose per monitor unit
values
Depth dose curves normalized to the
output at 10 cm depth of the 10cm x
10cm field.