2015 Article Dosimetry ICNCT16 Physics

Reprint of Bioneutronics: Thermal scattering in organics tissues and its impact on BNCT dosimetry

Applied Radiation and Isotopes, 2015

Authors:   R.L. Ramos,M.L. Sztejnberg Gonçalves-Carralves,F. Cantargi,
Journal: Applied Radiation and Isotopes
Abstract: Neutron transport calculation is a key factor in BNCT numerical dosimetry assessments where thermal neutron flux is intimately related to the neutron dose, specially, the therapeutic boron dose. In this work, numerical calculations in phantoms were performed to determine the importance of utilizing the appropriate thermal scattering treatment for different organic tissues. Two thermal treatments for the neutron scattering were included in the simulations: hydrogen bounded in bulk water and hydrogen bounded in a lipid like carbon chain (polyethylene). The results showed difference between both thermal treatments that can reach several percent points depending on the type of source and irradiated geometry.