Rotating wheel filter design and optimization for a uniform depth dose distribution in heavy ion therapy
- Received Date: 2008-07-17
- Accepted Date: 1900-01-01
- Available Online: 2008-01-03
Abstract: Treatment planning of heavy-ion radiotherapy involves predictive calculation of not only the physical dose but also the biological dose in a patient body. The goal in designing beam-modulating devices for heavy ion therapy is to achieve uniform biological effects across the spread-out Bragg peak (SOBP). To achieve this, a mathematical model of Bragg peak movement is presented. The parameters of this model have been resolved with Monte Carlo method. And a rotating wheel filter is designed basing on the velocity of the Bragg peak movement.