3 - D photon treatment planning using FFT convolution
نویسندگان
چکیده
A theory is presented on dose calculations in inhomogeneous media that takes advantage of fast Fourier transform (FFT) convolution for practical 3-D treatment planning using photon beams. We derived a new correction dose formula which corrects the dose deposited by the Compton rst scattered photons due to the presence of inhomogeneities. We justiied theoretically why the convolution primary dose formula for homogeneous water medium continues to be valid for inhomogeneous media. We veriied our results by comparing to measurements.
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