Benjamin D. McPheron, Ph.D. of Roger Williams University

Performing 2D NMR in powered magnets represents a significant challenge as powered magnets possess poor spatial homogeneity and temporal magnetic field fluctuations.  Resolving off-diagonal cross peaks in 2D spectra requires the spatial homogeneity and time-invariant field strength afforded by persistent mode magnets.  We use ferroshims, sample spinning, and cascade regulation of field strength to enable the acquisition of TOCSY spectra of ethanol using a 16.3 MW resistive magnet that provides a 25 T field.  To our knowledge, this is the first 2D NMR results reported for a powered magnet where cross peaks are resolved.  This talk will discuss the control system design and principal results of this study.

Biography:

Benjamin D. McPheron is an Assistant Professor of Engineering at Roger Williams University. Dr. McPheron received his B.S.E.E. in Electrical Engineering at Ohio Northern University in 2010, and his Ph.D. degree in Electrical Engineering from the Department of Electrical Engineering at The Pennsylvania State University in 2014. Dr. McPheron is the Vice Chair of the Providence IEEE Section and the Chair of the IEEE EMBS Providence Chapter. Dr. McPheron teaches various courses in Electrical Engineering including Circuit Theory, Signals and Systems, Electromagnetic Theory, Digital Signal Processing, Dynamic Modeling and Control, and Power Systems. His research interests include Control Systems, Robotics, Signal Processing, and Engineering Education.

Benjamin D. McPheron, Ph.D. of Roger Williams University

Biography: