1171 / 1542
Off-axis factors
More pronounced “sholders” at Dmax than at depth.
0
20
40
60
80
100
120
-200
-100
0
100
200
% dd
distance from central axis
15 mm
75 mm
135 mm
195 mm
255 mm
Basic Dose Caculation
Principles 2012
17
|
|
1171 / 1542
Off-axis factors
More pronounced “sholders” at Dmax than at depth.
0
20
40
60
80
100
120
-200
-100
0
100
200
% dd
distance from central axis
15 mm
75 mm
135 mm
195 mm
255 mm
Basic Dose Caculation
Principles 2012
17