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Abstract #2747

Improvements in Magnetic Shielding of a B0 Insert Coil

MAGNA25Chad Tyler Harris1, William B. Handler1, Brian Dalrymple1, Frank Van Sas1, Yonathan Araya2, Timothy J. Scholl2, 3, Blaine A. Chronik1, 3

1Physics and Astronomy, University of Western Ontario, London, Ontario, Canada; 2Medical Biophysics, University of Western Ontario, London, Ontario, Canada; 3Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada

Delta relaxation enhanced magnetic resonance (dreMR) is a method that has been shown to drastically improve signal specificity between the bound and unbound states of targeted contrast agents. The method requires a supplementary "Bo insert coil" to modulate the main magnetic field within an otherwise unmodified superconducting system. Magnetic shielding is a major challenge in the design and construction of these insert coils. In this work, we investigate improvements in shielding capability by including primary coil construction details (i.e. winding misplacements, wire connections) in the design of the shield.