Calculation of energy absorption coefficients of ten materials for use in computed tomography

Authors

  • C. C. Ferreira Departamento de Física, Universidade Federal de Sergipe
  • A. F. Maia Departamento de Física, Universidade Federal de Sergipe
  • R. E. M. Ximenes Departamento de Física, Universidade Federal de Sergipe
  • C. A. B. Garcia Departamento de Química, Universidade Federal de Sergipe

Keywords:

simulators objects, modelling clay, dosimetry

Abstract

Dosimetry of X rays beams is an important test quality control to ensure the safety of using ionizing radiation in medical applications. The execution of dosimetric procedures is generally related to simulators objects that make possible to estimate the dose received by the patient. Therefore the main objective of this study was to calculate the mass energy-aborption coefficient for ten materials locally available to investigate the viability of using these materials in human brain simulators objects for X rays beams in computed tomography. Materials with low cost were chosen to reproduce physical characteristics  of human brain. These materials are: bolus, paraffin, PMMA, pitch, modelling clay, Nylon®, articulation wax and bee wax. Immediately after the obtaining of mass energy-aborption coefficient, they were analyzed and compared ICRU´s (International Commission on Radiation Units and Measurements) brain and ICRP´s (International Commission on Radiological Protection) brain. Graphs and tables used in the comparison showed that the material which had the best results were the modeling clay.

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How to Cite

Ferreira, C. C., Maia, A. F., Ximenes, R. E. M., & Garcia, C. A. B. (2011). Calculation of energy absorption coefficients of ten materials for use in computed tomography. Scientia Plena, 5(11). Retrieved from https://scientiaplena.org.br/sp/article/view/738

Issue

Vol. 5 No. 11 (2009): November/Novembro 2009

Section

Articles

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