CUED Publications database

Design of a Superconducting Magnet for Lorentz Force Electrical Impedance Tomography

Shen, B and Fu, L and Geng, J and Zhang, H and Zhang, X and Zhong, Z and Huang, Z and Coombs, TA (2016) Design of a Superconducting Magnet for Lorentz Force Electrical Impedance Tomography. IEEE Transactions on Applied Superconductivity, 26. ISSN 1051-8223

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Abstract

© 2002-2011 IEEE. This paper presents the design and modeling of a second-generation (2G) high-temperature superconducting (HTS) magnet, which is suitable for Lorentz force electrical impedance tomography (LFEIT). The concept of constructing a superconducting magnet using the configuration of a Halbach array is proposed, which can achieve a favorable thin geometry for the LFEIT system, and is able to build a homogeneous magnetic field with high intensity. The modeling of this superconducting Halbach array magnet has been executed by COMSOL Multiphysics. H-formulation together with B-dependent critical current density and bulk approximation are used as the basic tools for modeling. Results reveal that this magnet can achieve over 1-T magnetic field in the cross section required. The optimization of HTS coils' location and different numbers of coils are carried out to balance the strength and homogeneity of magnetic field.

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: 19 Sep 2017 01:28
DOI: