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Basic Dose Calculation Principles

Simplified depth dose formalism, beoynd d

m

DD(d)

%

=D

max •

(f+d

m

/f+d)

2

e

-(

m

d)

K

s

f

distance from source to surface

d

m

or depth to

D

max

d

is depth in tissue

K

s

is the scatter

attenuation scatter

distance