Sudhir KumarNahum, A. E.Chetty, I. J.2021-04-162021-04-162020Physics in Medicine and Biology, 2020. Vol. 65 (17): Article no. 175012http://hdl.handle.net/123456789/227955942 bytestext/htmlenabsorbed dosekermaelectron-fluence perturbationnon-equilibrium photon fieldsMonte CarloFano theoremMonte-Carlo-computed dose, kerma and fluence distributions in heterogeneous slab geometries irradiated by small megavoltage photon fieldsArticle