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Brachytherapy Dosimetry Formalism
RAKR nearly identical to air-kerma strength
S
K
(distance specification)
L
K
L
G r ,
D r
S
g r F r
D
dose rate to water in water at point P(
r
)
L 0 0
,
,
G r ,
D r ,
r ,
,
S
K
air-kerma strength
dose-rate constant
g
L
(
r
) radial dose function
G
L
(
r
,
) geometry function (line-source approximation)
F
(
r
,
) 2D anisotropy function