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How efficient can MC be …?
Traditionally, MC was said to be too slow for clinical use and therefore reserved for
high quality single source dosimetry in reference conditions that was then
partitioned to TG-43 quantities and used in TPS for treatment planning purposes.
Total t
CALC
scales with N which is determined by the level of desired type A
,
uncertainty which is proportional to
MC f B h j
t /N d ti f
h t
l t ki (20% 70%)
N
k Var
)(
or rac y en oys
CALC
re uc on rom p o on on y rac ng
-
In brachy however, t
CALC
/N is large when multiple scattering occurs