| Literature DB >> 1710973 |
Abstract
A circular magnetic stimulator coil placed perpendicularly to the surface of a large uniform conductor induces surface charge. The resulting electrostatic field reduces the total electric field within the conductor to 58% of the value in the absence of surface charge. The properties of 3 kinds of probe for measuring the effect of a magnetic stimulator are considered. A short dipole electric field probe is the only one which correctly measures the total electric field, including the contribution from any surface charge. A search coil generally gives incorrect results, since it is insensitive to the electrostatic field.Mesh：
Year: 1991 PMID： 1710973 DOI： 10.1016/0168-5597(91)90077-b
Source DB: PubMed Journal: Electroencephalogr Clin Neurophysiol ISSN： 0013-4694