Bu Sik Park1,2, Andrew G. Webb3,4, Christopher M. Collins2,5
1Bioengineering , The Pennsylvania State University, Hershey, PA, USA; 2Radiology, The Pennsylvania State University, Hershey, PA, USA; 3Bioengineering, The Pennsylvania State University, University Park, PA, USA; 4Radiology, Leiden University Medical Center, Leiden, Netherlands; 5Bioengineering, The Pennsylvania State University, Hershey, PA, USA
A method is presented to decrease power loss and heating in conductive samples using strategically shaped and positioned passive pieces of copper conductor, referred to here as Ec shields, within a solenoidal coil to decrease the conservative electric field (Ec) with little impact on the B1 field. Here we use numerical calculations to evaluate several versions of our design, as well as one previously-published design (the loop-gap cylinder) in their ability to decrease sample power loss with minimal impact on B1.