Abstract
A method which combines the accuracy of Monte Carlo dose calculation with a finite size pencil-beam based intensity modulation optimization is presented. The pencil-beam algorithm is employed to compute the fluence element updates for a converging sequence of Monte Carlo dose distributions. The combination is shown to improve results over the pencil-beam based optimization in a lung tumour case and a head and neck case. Inhomogeneity effects like a broader penumbra and dose build-up regions can be compensated for by intensity modulation.
| Original language | English |
|---|---|
| Pages (from-to) | 1741-1754 |
| Number of pages | 14 |
| Journal | Physics in Medicine and Biology |
| Volume | 45 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2000 |
| Externally published | Yes |