Abstract
Dose calculation is essential in radiation therapy treatment planning. TomoTherapy uses accurate Collapsed Cone Convolution/superposition (CCCS) algorithm as its dose calculation engine. As the CCCS calculation is computationally demanding, computer cluster with 28 cpu cores or 56 cpu cores is provided for the optimization and dose calculation. The recent generation of graphic processing units (GPUs) possesses great computing power due to its massively parallel architecture. We have developed an ultrafast GPU-based Tomotherapy® dose calculation engine capable of performing near real-time dose calculation with a single PC.
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