title: Scatter fraction with simulations.
abstract: In this work, the authors revisit the measurements of Trout and Kelley, and Simpkin and Dixon, by means of Monte Carlo simulations. Starting with a simple cylindrical homogeneous phantom, the authors introduce a more realistic phantom and the effect of the bucky in the simulations. The results indicate that optimised shielding methodologies should not neglect the attenuation and scattering by the patient plus bucky.
authors.affiliation: Centro de Física Atómica da Universidade de Lisboa, Lisboa, Portugal Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal jmsampaio@fc.ul.pt.
authors.forename: J M
authors.initials: JM
authors.lastname: Sampaio
authors.affiliation: LIP-Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
authors.forename: M C
authors.initials: MC
authors.lastname: Abreu
authors.affiliation: LIP-Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
authors.forename: P
authors.initials: P
authors.lastname: Sousa
authors.affiliation: Faculdade de Ciências da Universidade de Lisboa, Lisboa, Portugal LIP-Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal.
authors.forename: L
authors.initials: L
authors.lastname: Peralta
authors.affiliation: Hospital de Faro, EPE, Faro, Portugal.
authors.forename: A F
authors.initials: AF
authors.lastname: Ferreira
authors.affiliation: Hospital de Faro, EPE, Faro, Portugal.
authors.forename: S
authors.initials: S
authors.lastname: Rodrigues
mesh_terms: D003198:Computer Simulation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009010:Monte Carlo Method; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D015899:Tomography, Emission-Computed, Single-Photon