Construction and Validation of a Probe for Electric Field Measurements in Gradient Coils
Feldman R, Chronik B, Scholl T
University of Western Ontario
A probe was developed to measure the total electric field induced by a gradient coil. The probe was used to measure the electric field over the X-Y plane of an empty head gradient coil. The electric field measured was an order of magnitude higher than the simulated electric field due to the changing magnetic field alone. However, when the mouth of the coil was shielded, the measured electric field approached the simulated field. The larger measured electric field is hypothesized to be due to the coils scalar potential.