Empirical relation between the treated volume
(in cm
3
) and the geometric implantation data
Paris system: V100%
V
T
= k.N.E
2
.L
N
= number of lines
E
= spacing of lines (cm)
L
= active length
k
= 0.47 for planar implants and for patterns in « triangles »
0.57 for patterns in « squares »
12
A Bridier