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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2736

Title: Dielectric studies of polyvinyl-acetate-based phantom for applications in microwave medical imaging
Authors: Bindu, G
Anil, Lonappan
Vinu, Thomas
Aanandan,C K
Mathew, K T
Keywords: polyvinyl-acetate
microwave medical imaging
Issue Date: 1-Nov-2006
Publisher: Springer
Abstract: Phantoms that exhibit complex dielectric properties similar to low water content biological tissues over the electromagnetic spectrum of 2–3 GHz have been synthesized from carbon black powder, graphite powder and polyvinyl-acetate-based adhesive. The materials overcome various problems that are inherent in conventional phantoms such as decomposition and deterioration due to the invasion of bacteria or mold. The absorption coefficients of the materials for various compositions of carbon black and graphite powder are studied. A combination of 50% polyvinylacetate- based adhesive, 20% carbon black powder and 30% graphite powder exhibits high absorption coefficient, which suggests another application of the material as good microwave absorber for interior lining of tomographic chamber in microwave imaging. Cavity perturbation technique is adopted to study the dielectric properties of the material.
URI: http://dyuthi.cusat.ac.in/purl/2736
Appears in Collections:Dr. C K Aanandan

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