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Basic Dose Calculation Principles
Simplified depth dose formalism
DD(d)
%
=D
max •
(f+d
m
/f+d)
2 •
e
-(
µ
•
d) •
K
s
attenuation
µ/ρ
X-ray Mass Attenuation
Coefficient
µ
/
ρ
E
MV RT
range
/
ρ
“Intensity beam is reduced
through interaction of photons
with the crossed medium”