학술논문

Dose calculation for radiotherapy treatment planning using Monte Carlo methods on FPGA based hardware
Document Type
Conference
Source
2009 16th IEEE-NPSS Real Time Conference Real Time Conference, 2009. RT '09. 16th IEEE-NPSS. :415-419 May, 2009
Subject
Computing and Processing
Field programmable gate arrays
Hardware
Electromagnetic scattering
Particle scattering
Electrons
Monte Carlo methods
Humans
Biological system modeling
Ionizing radiation
Electromagnetic radiation
Language
Abstract
This work describes a fast Monte Carlo Machine for dose calculation in radiotherapy treatment planning on FPGA based hardware. When performing Monte Carlo simulations of the radiation dose delivered to the human body, the Compton interaction is simulated. The inputs to the system are the energy and the normalized direction vectors of the incoming photon. The energy and the direction vectors of the scattered photon and the scattered electron are calculated. The energy distribution by the scattered electron along its path in a voxel space is then calculated which can be used to construct maps of dose distribution in real time.