872 / 1224
Phantom correction
•
p
phant
increases with distance due to
increased density and increased attenuation
from %Ca content
•
There might also be a minor θ dependence
I-125 / SW
) (
) (
,
,
Q D
QD
p
phant
w
ww
phant
=
Table from: Luxton, Med. Phys. 21(5), 631 (1994)
Figure from: Moutsatsos et al. Brachytherapy, 13(6), 618 (2014)