Faraday shield


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Faraday shield

An MRI term for an electrically conductive screen or shield that reduces or eliminates interference between external radio waves and internal electromagnetic radiation from the MRI unit.
References in periodicals archive ?
"The Faraday shield blocks electrostatic coupling of the stator and rotor," von Jouanne said.
In addition, communication may be required with paratroopers, dumb loads or smart loads that leave the aircraft during flight after the aircraft Faraday shield is opened (cargo ramp lowered in flight).
The cover needs to make full contact with the mating surface, compressing any gasket material and maintaining a Faraday shield. If the cover material is thin or flexible, such as plated plastic, gaps may occur in locations where the cover meets the circuit board or the enclosure (at points away from the screws, where the cover bows).
Properly separating the windings will minimize this form of coupling, as will the use of Faraday shields, but such measures cannot completely eliminate coupling, and they increase power-supply costs.