Study of carbon black-epoxy based fat tissue phantom and its dielectric properties / Hatem Mohamed Abdelwahab Al-Gabroun
Microwave imaging techniques for medical applications have been reported in the literature for many years. However, the progress in imaging algorithms, numerical techniques, microwave hardware and computational speed has renewed the interest in this field. Breast cancer detection is particularly...
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| 格式: | Thesis |
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2010
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| 在線閱讀: | http://studentsrepo.um.edu.my/7486/1/study_of_carbon.pdf http://studentsrepo.um.edu.my/7486/ |
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| 總結: | Microwave imaging techniques for medical applications have been reported in the literature
for many years. However, the progress in imaging algorithms, numerical techniques,
microwave hardware and computational speed has renewed the interest in this field.
Breast cancer detection is particularly attractive from a microwave imaging perspective, the
major reason referred to the potentially high dielectric contrast between cancerous tissues
and normal breast tissues depending on water content. Low water tissues tend to be low
permittivity as fat, whilst high water content tissues tend to be high permittivity as
cancerous tissues.
All of that increased the need for effective phantoms that mimic the electromagnetic
properties of biological tissues at these high frequencies in a purpose of testing the mutual
effects between these radiations and biological tissues. For this purpose several phantoms
with several materials have been proposed to simulate bio logical tissues.
This study investigates a simulation method based on rule of mixture to design fat phantom
by using binary system containing epoxy as a matrix and carbon black powder as a filler.
The dielectric properties were measured by using Network Analyzer equipped with coaxial
cable and the results showed the possibility of using this system for fat tissues simulating at
frequency range from I G Hz to I 0 G Hz.
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