ArticleIEEE transactions on microwave theory and techniques2017
Electrical Characterization of Glycerin: Water Mixtures: Implications for Use as a Coupling Medium in Microwave Tomography.
Article in IEEE transactions on microwave theory and techniques, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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23 citing papers in PubMed.
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- Reducing Non-Through Body Energy Transfer in Microwave Imaging Systems.IEEE journal of electromagnetics, RF and microwaves in medicine and biology · 2023Article
- Low-Cost Electronics for Automatic Classification and Permittivity Estimation of Glycerin Solutions Using a Dielectric Resonator Sensor and Machine Learning Techniques.Sensors (Basel, Switzerland) · 2023Article
- Dielectric Characterization of Healthy Human Teeth from 0.5 to 18 GHz with an Open-Ended Coaxial Probe.Sensors (Basel, Switzerland) · 2023Article
- Effect of Coupling Medium on Penetration Depth in Microwave Medical Imaging.Diagnostics (Basel, Switzerland) · 2022Article
- Impact of Skin on Microwave Tomography in the Lossy Coupling Medium.Sensors (Basel, Switzerland) · 2022Article
- Microwave Antenna System for Muscle Rupture Imaging with a Lossy Gel to Reduce Multipath Interference.Sensors (Basel, Switzerland) · 2022Article
- Using prior information to enhance microwave tomography images in bone health assessment.Biomedical engineering online · 2022Article
- Assessing Patient-Specific Microwave Breast Imaging in Clinical Case Studies.Sensors (Basel, Switzerland) · 2021Article
- Nanomaterials responding to microwaves: an emerging field for imaging and therapy.Nanoscale advances · 2021Review
- Effects of Viscosity and Refractive Index on the Emission and Diffusion Properties of Alexa Fluor 405 Using Fluorescence Correlation and Lifetime Spectroscopies.Journal of fluorescence · 2021Article
- A Simulation-Based Methodology of Developing 3D Printed Anthropomorphic Phantoms for Microwave Imaging Systems.Diagnostics (Basel, Switzerland) · 2021Article
- Safety and image quality at 7T MRI for deep brain stimulation systems: Ex vivo study with lead-only and full-systems.PloS one · 2021Article
- Developing Artefact Removal Algorithms to Process Data from a Microwave Imaging Device for Haemorrhagic Stroke Detection.Sensors (Basel, Switzerland) · 2020Article
- Application of Two-Dimensional Discrete Dipole Approximation in Simulating Electric Field of a Microwave Breast Imaging System.IEEE journal of electromagnetics, RF and microwaves in medicine and biology · 2019Article
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4 authors.
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Abstract
We examine the broadband behavior of complex electrical properties of glycerin and water mixtures over the frequency range of 0.1 - 25.0 GHz, especially as they relate to using these liquids as coupling media for microwave tomographic imaging. Their combination is unique in that they are mutually miscible over the full range of concentrations which allows them to be tailored to dielectric property matching for biological tissues. While the resultant mixture properties are partially driven by differences in the inherent low frequency permittivity of each constituent, relaxation frequency shifts play a disproportionately larger role in increasing the permittivity dispersion while also dramatically increasing the effective conductivity over the frequency range of 1 to 3 GHz. For the full range of mixture ratios, the relaxation frequency shifts from 17.5 GHz for 0% glycerin to less than 0.1 GHz for 100% glycerin. Of particular interest is the fact that the conductivity stays above 1.0 S/m over the 1-3 GHz range for glycerin mixture ratios (70-90% glycerin) we use for microwave breast tomography. The high level of attenuation is critical for suppressing unwanted multipath signals. This paper presents a full characterization of these liquids along with a discussion of their benefits and limitations in the context of microwave tomography.
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