Advanced Physics for Brachytherapy 2018
The Dose Kernel A
Dose rate from a single source at a point in water-filled space per Unit Source Strength (in Gy min -1 U -1 or cGy min -1 U -1 or cGy h -1 U -1 ) : dose to water in water
Characteristic for every Source Type
H
O
2
192 Ir 60 Co 169 Yb 125 I 103 Pd 131 Cs …
1D/2D LUTs
constant
)( rD D
) rG r , (
(
r
) ,
G
) ,(
L
= =
=
rFrg
A
r
)(
) ,( )(
L
S
S
K
K
L
0 0
= ሶ
.
=
ሶ ( ).
calculated
. ²
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