Density comparison of 3D printing materials and the human body

• Autor(a) principal: SAVI, M.
• Data de Publicação: 2018
• Outros Autores: POTIENS, M.P.A., SILVEIRA, L.C., CECHINEL, C.M., SOARES, F.A.P., INTERNATIONAL JOINT CONFERENCE RADIO 2017
• Tipo de documento: Artigo de conferência
• Título da fonte: Repositório Institucional do IPEN
• Texto Completo: http://repositorio.ipen.br/handle/123456789/28585

Introduction: Phantoms are commonly used for teaching and radiation dosimetry as a simulator of the human body in order that no individual be exposed to radiation during training and research. Some are the properties that can be used as a measurement parameter in a phantom: density, energy compatibility, attenuation and scattering of the radiation, anthropomorphism, among others. 3D printing has revolutionized many areas of knowledge, including those that make use of radiations. In this context, this study aims to evaluate the density of various materials applied in 3D printing and compare found values with human body density in ICRP 110. Methods: Cubes with 2cm edges were printed on 12materials of different compositions with internal filling of 60 %, 80% and 100%, weighed on a precision balance and measured with a caliper. Results: The densities found ranged from 0,575 g/cm?? to 2,624 g/cm?? for 60% infill, 0,686 g/cm?? to 3,091 g/cm?? for 80% and 0,794 g/cm?? to 3,572 g/cm?? for 100%. Densities related to teeth, bones, muscles, fat, among others, could be created from specific infill variations. Conclusion: All analyzed materials have the capacity to mimic the structures described in ICRP 110 when the percentage of filling are varied. However, even achieving human tissue density the materials may be not adequate for attenuation and require further experiments.