Radio frequency shielding includes the construction of enclosures for the purpose of reducing the transmission of electric or magnetic fields from one space to another (
Faraday cage,
Faraday shield). Electrically conducted
shielding is designed to isolate
MRI systems from its environment at the resonant frequencies.
All electronic and
computer systems radiate certain frequencies of radio and magnetic waves. They can interfere with other
equipment in the vicinity.
Magnetic shielding enclosures are used to reduce the levels of RF radiation that enters or leaves the shielded
room.
Copper
shielding enclosures are designed to
filter a range of frequencies under specified conditions. One of the characteristics of copper is its high electrical conductivity. Also its other physical properties like ductility, malleability, and ease of soldering, make it an ideal material for
radio frequency shielding. Sheet copper can be formed into any shape and size, and electrically connected to a grounding system to provide an effective RF
shielding.
See also
MRI Safety