title: Shortening the calculation time of photon dose distributions in an inhomogeneous medium.
abstract: A procedure is described for calculating photon dose distributions using convolutions of radiation interaction kernels with calculated fluence distributions. The advantages and disadvantages of the concept are discussed.
mesh_terms: D006801:Humans; D008433:Mathematics; D008962:Models, Theoretical; D011829:Radiation Dosage; D013997:Time Factors