Equivalent-charge-based optimization of spokes-and-hub permanent magnets for hand-held MR imaging
Name
1193027539-MIT.pdf
Size
13.8 MB
Format
Adobe PDF
Checksum (MD5)
76e41a724b8b83bbc2b865abbfa2b5c4
Author(s)
Kuang, Irene A.
Advisor(s)
Jacob K. White.
Date Issued
2020
Publisher
Massachusetts Institute of Technology
Abstract
The complex infrastructure needed for high-field magnetic resonance (MR) scanners has relegated this very safe, and remarkably revealing, clinical tool to high-end hospital care. But for many potential applications of MR -- point-of-care diagnostics, routine screening or classroom experimentation -- image quality is far less critical than portability and low cost. Emphasizing cost and portability over image quality has led researchers to focus on low-field MR, of the order of tens to hundreds of millitesla, generated using arrays of inexpensive permanent magnets. In this thesis, I describe a method for differentiating the potential from end-cap equivalent charges to efficiently compute the fields from bar magnets in a hundred- bar spokes-and-hub permanent magnet topology and demonstrate its potential as a low-cost MR imager.
Description
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, May, 2020
Cataloged from the official PDF of thesis.
Includes bibliographical references (pages 45-48).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
MIT theses may be protected by copyright. Please reuse MIT thesis content according to the MIT Libraries Permissions Policy, which is available through the URL provided.
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