Please use this identifier to cite or link to this item: http://ri.ufs.br/jspui/handle/riufs/484
Document Type: Artigo
Title: Total mass attenuation coefficient evaluation of ten materials commonly used to simulate human tissue
Authors: Ferreira, Cássio Costa
Ximenes, R. E. M.
Garcia, Carlos Alexandre Borges
Vieira, José Wilson
Maia, Ana Figueiredo
Issue Date: Nov-2010
Abstract: To study the doses received by patient submitted to ionizing radiation, several materials are used to simulate the human tissue and organs. The total mass attenuation coefficient is a reasonable way for evaluating the usage in dosimetry of these materials. The total mass attenuation coefficient is determined by photon energy and constituent elements of the material. Currently, the human phantoms are composed by a unique material that presents characteristics similar to the mean proprieties of the different tissues within the region. Therefore, the phantoms are usually homogeneous and filled with a material similar to soft tissue. We studied ten materials used as soft tissue-simulating. These materials were named: bolus, nylon®, orange articulation wax, red articulation wax, PMMA, modelling clay, bee wax, paraffin 1, paraffin 2 and pitch. The objective of this study was to verify the best material to simulate the human cerebral tissue. We determined the elementary composition, mass density and, therefore, calculated the total mass attenuation coefficient of each material. The results were compared to the values established by the International Commission on Radiation Units and Measurements - ICRU, report n° 44, and by the International Commission on Radiation Protection - ICRP, report n° 89, to determine the best material for this energy interval. These results indicate that new head phantoms can be constructed with nylon®.
Keywords: Física médica
Radiação
ISSN: 1742-6596
Publisher / Institution : IOP Publishing
Citation: FERREIRA, C. C. et al. Total mass attenuation coefficient evaluation of ten materials commonly used to simulate human tissue. Journal of Physics: Conference Series (Online), v. 249, n. 1, nov. 2010. Disponível em: <http://iopscience.iop.org/1742-6596/249/1/012029/pdf/1742-6596_249_1_012029.pdf>. Acesso em: 2 maio 2013.
License: Creative Commons Attribution License
URI: https://ri.ufs.br/handle/riufs/484
Appears in Collections:DFI - Artigos de periódicos
DQI - Artigos de periódicos

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