704 / 1840
Forward Planning / Optimization
Dose Points-based Adjustment of Dwell Times T
i
(DPO)
The “Black Holes” or the “Mystery” of negative Dwell Times
*
cm
** * * * * * * * * * * *
* * * * * * * * * * *
Dose points
Catheter
6cm
1
with
dwell positions
0.25cm
1 5 10 15 20 25
1
Relative Dwell Time
DPO
Solution
0
–0.5
–1
0
5
10
15
20
25
1.95
0.5
Dwell Position
Negative T
i
:
Mathematically Feasible,
Physically Nonsense