Oct. 24, 2014
The dose that cancer patients receive from proton radiotherapy requires long computation times for precise determination. Faster computation methods using an analytical approach exist, but have a tradeoff in precision. For ideal purposes, there needs to be a fast dose calculator with the speed of analytical approaches while maintaining the precision of stochastic approaches.
This invention provides a process to calculate the dose deposited by a proton beam. The Fat Dose Calculator (FDC) uses an algorithm nearly one hundred times faster than conventional stochastic algorithms. A database of proton trajectories is generated, and then used to quickly simulate proton trajectories in any material by scaling the trajectory lengths and scattering angles.
J.S Li et al, “A particle track-repeating algorithm for proton beam dose calculation”, Phys. Med. Bio. 50 (2005) 1001.
2009-020
The FDC may be applied to a variety of fields. The most immediate application will be the calculation of the dose received by patients treated at proton therapy centers. Stochastic methods are more precise than currently used analytical models, but are extremely time-consuming.
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faster computation methods
hundred times faster
technology relevant papers
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case # 2009-020
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