title: Reduction of time-varying nanotesla magnetic fields from electric power lines by twisting.
abstract: Time-varying magnetic fields generated by electrical power lines in the laboratory can disturb electron microscope imaging. Modern microscopes require these fields to be below 10 nT [2]. We calculated and measured magnetic fields from straight and twisted current-carrying wires, and show that without twisting, this value cannot be reached.
authors.affiliation: MESA+ and Impact Research Institutes, University of Twente, AE Enschede, The Netherlands.
authors.forename: Auke J
authors.initials: AJ
authors.lastname: Been
authors.forename: Gerrit A
authors.initials: GA
authors.lastname: Folkertsma
authors.forename: Hein H J
authors.initials: HH
authors.lastname: Verputten
authors.forename: Thijs
authors.initials: T
authors.lastname: Bolhuis
authors.forename: Leon
authors.initials: L
authors.lastname: Abelmann