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Communication Dans Un Congrès Année : 2020

A bird-cage coil for MRI studies of unsatureted granular materials

Résumé

Magnetic Resonance Imaging (MRI) is a powerful and non-invasive technique that can be used to reveal useful information about different types of materials. During an MRI experiment a magnetic resonance signal is induced (according to Faraday’s law of induction) in a device called “probe”. MRI probes are simply near field antennas designed in a specific way in order to produce a homogeneous magnetic field at a specific frequency in the region of interest. MRI is a strong technique to study unsaturated granular materials. However, it suffers from a significant drawback, that is inherent small signal-to-noise ratio. To overcome this problem the probe used for a specific MRI experiment must be optimised. In this work a bird-cage probe operating at 21.3 MHz, optimised to study unsaturated granular materials under shear stress as well as some experimental results will be presented.
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Dates et versions

hal-02909150 , version 1 (30-07-2020)

Identifiants

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Sina Marhabaie, Hakim Takhedmit, Patrick Poulichet, Marjorie Grzeskowiak, Abdoulaye Fall. A bird-cage coil for MRI studies of unsatureted granular materials. the 14th European Conference on Antennas and Propagation (EUCAP 2020), Mar 2020, Copenhague, Denmark. pp.1-5, ⟨10.23919/EuCAP48036.2020.9135692⟩. ⟨hal-02909150⟩
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