CUED Publications database

Design and simulation of superconducting Lorentz Force Electrical Impedance Tomography (LFEIT)

Shen, B and Fu, L and Geng, J and Zhang, X and Zhang, H and Dong, Q and Li, C and Li, J and Coombs, TA (2016) Design and simulation of superconducting Lorentz Force Electrical Impedance Tomography (LFEIT). Physica C: Superconductivity and its Applications, 524. pp. 5-12. ISSN 0921-4534

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Abstract

© 2016 Elsevier B.V. All rights reserved. Lorentz Force Electrical Impedance Tomography (LFEIT) is a hybrid diagnostic scanner with strong capability for biological imaging, particularly in cancer and haemorrhages detection. This paper presents the design and simulation of a novel combination: a superconducting magnet together with LFEIT system. Superconducting magnets can generate magnetic field with high intensity and homogeneity, which could significantly enhance the imaging performance. The modelling of superconducting magnets was carried out using Finite Element Method (FEM) package, COMSOL Multiphysics, which was based on Partial Differential Equation (PDE) model with H-formulation coupling B-dependent critical current density and bulk approximation. The mathematical model for LFEIT system was built based on the theory of magneto-acoustic effect. The magnetic field properties from magnet design were imported into the LFEIT model. The basic imaging of electrical signal was developed using MATLAB codes. The LFEIT model simulated two samples located in three different magnetic fields with varying magnetic strength and homogeneity.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 18:59
Last Modified: 21 Sep 2017 01:35
DOI: