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ESTRO IMRT course 2015
Dose Calculation in Static and Rotational IMRT
Brussels October 8th, 2015
-33-
Kernel-based methods:
‘Collapsed Cone’ approximation for efficient density rescaling
•
Discretization of the point
kernel into angular sectors
(‘cones’)
•
density rescaling only done
for voxels on the central cone
axis, i.e. the cones are
‘collapsed’ to their central
axis
•
precision and calculation
time depend on resolution