Meeting Banner
Abstract #2741

An Optimal Central Gap Size for the Split Gradient Coil Design

Limei Liu1, Hector Sanchez Lopez1, Michael Poole1, Feng Liu1, Stuart Crozier1

1the University of Queensland, Brisbane, Queensland, Australia

the impact of the central gap size is studied in this work in terms of the eddy current effects in a split whole-body MRI system which is designed for the PET-MRI multi-imaging technology. An optimal central gap size is found by analyzing the gradient performance and the eddy current effects as a function of the central gap size. The split MRI system with this central gap size could generate the smallest eddy current effects with good gradient performance. The findings in this work may provide indicators of potentially useful system configuration for the PET-MRI systems.

Keywords

acoustic actively addition affects aluminum amount amplitudes analyzed another artifacts assembly away behavior biology body boil bore boundary called cancer carrying cause central characterized coil coils cold complimentary components conductivity connected constrained continuous created cross cryostat decrease decreased defined degrade design development device difficulties dissipated dissipation dramatically eddy efficacy efficiency electrical error expected field fields finding findings function furthest gaps generated gradient greater halves harmonic harmonics hector helium hour impact important improve indicates induced inductance inductances inner investigations larger layers length lengths linear linearity liquid liters load medicine merit methodology metrics minimize network offs optimal performance physics plotted positron power primarily primary quarter radii radius remain reserve respectively scanner science secondary section sensors series sets shield shielded shielding shields simulated simulation solve spacing spherical split spots stability stainless steel strength studied surfaces system systems technology temperature thermal thesis thicknesses tomography trade transverse treatment versus vessel warm watt western whole wider wire