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Updated: Mar 31, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
Reprint of Bioneutronics: Thermal scattering in organics tissues and its impact on BNCT dosimetry
R L Ramos1, M L Sztejnberg Gonçalves-Carralves2, F Cantargi3
1Instituto Dan Beninson, Universidad Nacional de San Martín, Av. General Paz 1499 (1650), San Martín, Buenos Aires, Argentina.
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.
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